Add no save option

another updated astrash commit

.github/CODEOWNERS

@@ -1,19 +1,13 @@
 # Global owners, automatically request review when pull request is submitted
-*                   @dfsek @solonovamax
+*                   @dfsek @solonovamax @duplexsystem @Astrashh @justaureus
 
 # Platforms
-## dfsek wrote the majority of the platform impls
-/platforms/bukkit/  @dfsek
-/platforms/fabric/  @dfsek
-/platforms/forge/   @dfsek
-/platforms/sponge/  @dfsek
-## solonovamax is working on the region generator (unless duplexsystem takes it over)
-/platforms/region/  @solonovamax
+/platforms/         @dfsek @solonovamax @duplexsystem @justaureus
 
 # Common
-/common/            @dfsek @solonovamax
+/common/            @dfsek @solonovamax @duplexsystem @Astrashh
 
 # Gradle Stuff
-## Most gradle stuff was written by solonovamax
-/buildSrc/           @solonovamax
-*.gradle.kts        @solonovamax
+/buildSrc/          @dfsek @solonovamax @duplexsystem
+*.gradle.kts        @dfsek @solonovamax @duplexsystem
+/gradle/            @dfsek @solonovamax @duplexsystem

.github/workflows/gradle-build.yml

@@ -0,0 +1,47 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will build a package using Gradle and then publish it to GitHub packages when a release is created
+# For more information see: https://github.com/actions/setup-java/blob/main/docs/advanced-usage.md#Publishing-using-gradle
+
+name: Gradle Build
+
+on: [ pull_request ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+      - name: Set up JDK 21
+        uses: actions/setup-java@387ac29b308b003ca37ba93a6cab5eb57c8f5f93
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+          server-id: github # Value of the distributionManagement/repository/id field of the pom.xml
+          settings-path: ${{ github.workspace }} # location for the settings.xml file
+
+      - uses: burrunan/gradle-cache-action@03c71a8ba93d670980695505f48f49daf43704a6
+        name: Build Terra
+        with:
+          # Specifies arguments for Gradle execution
+          # If arguments is missing or empty, then Gradle is not executed
+          arguments: build
+          # arguments can be multi-line for better readability
+          # arguments: |
+          #  --no-paralell
+          #  build
+          #  -x test
+          # Gradle version to use for execution:
+          #   wrapper (default), current, rc, nightly, release-nightly, or
+          #   versions like 6.6 (see https://services.gradle.org/versions/all)
+          gradle-version: wrapper
+          # Properties are passed as -Pname=value
+          properties: |
+            kotlin.js.compiler=ir
+            kotlin.parallel.tasks.in.project=true

.gitignore

@@ -249,3 +249,5 @@ nbdist/
 
 platforms/**/run/**
 
+#Vale Config File
+**/.vale.ini

build.gradle.kts

@@ -1,8 +1,8 @@
 preRelease(true)
 
-versionProjects(":common:api", version("6.5.0"))
-versionProjects(":common:implementation", version("6.5.0"))
-versionProjects(":platforms", version("6.5.0"))
+versionProjects(":common:api", version("6.6.0"))
+versionProjects(":common:implementation", version("6.6.0"))
+versionProjects(":platforms", version("6.6.0"))
 
 
 allprojects {
@@ -15,6 +15,7 @@ allprojects {
     tasks.withType<JavaCompile>().configureEach {
         options.isFork = true
         options.isIncremental = true
+        options.release.set(21)
     }
 
     tasks.withType<Test>().configureEach {
@@ -44,7 +45,7 @@ afterEvaluate {
     }
     project(":platforms:bukkit:common").configureDistribution()
     forSubProjects(":common:addons") {
-        apply(plugin = "com.github.johnrengelman.shadow")
+        apply(plugin = "com.gradleup.shadow")
 
         tasks.named("build") {
             finalizedBy(tasks.named("shadowJar"))

buildSrc/build.gradle.kts

@@ -9,18 +9,18 @@ repositories {
     maven("https://repo.codemc.org/repository/maven-public") {
         name = "CodeMC"
     }
-    maven("https://papermc.io/repo/repository/maven-public/") {
+    maven("https://repo.papermc.io/repository/maven-public/") {
         name = "PaperMC"
     }
 }
 
 dependencies {
     //TODO Allow pulling from Versions.kt
-    implementation("com.github.johnrengelman", "shadow", "8.1.1")
-    implementation("io.papermc.paperweight.userdev", "io.papermc.paperweight.userdev.gradle.plugin", "1.5.6")
+    implementation("com.gradleup.shadow", "shadow-gradle-plugin", "8.3.1")
+    implementation("io.papermc.paperweight.userdev", "io.papermc.paperweight.userdev.gradle.plugin", "1.7.2")
 
-    implementation("org.ow2.asm", "asm", "9.5")
-    implementation("org.ow2.asm", "asm-tree", "9.5")
-    implementation("com.dfsek.tectonic", "common", "4.2.0")
-    implementation("org.yaml", "snakeyaml", "2.2")
+    implementation("org.ow2.asm", "asm", "9.7")
+    implementation("org.ow2.asm", "asm-tree", "9.7")
+    implementation("com.dfsek.tectonic", "common", "4.2.1")
+    implementation("org.yaml", "snakeyaml", "2.3")
 }

buildSrc/src/main/kotlin/AddonConfig.kt

@@ -18,7 +18,7 @@ fun Project.addonDir(dir: File, task: Task) {
             matchingAddons(dir) {
                 it.name.startsWith("Terra-") // Assume everything that starts with Terra- is a core addon.
             }.forEach {
-                println("Deleting old addon: " + it.absolutePath)
+                logger.info("Deleting old addon: " + it.absolutePath)
                 it.delete()
             }
             forSubProjects(":common:addons") {
@@ -29,7 +29,7 @@ fun Project.addonDir(dir: File, task: Task) {
                 
                 val base = "${jar.archiveBaseName.get()}-${version}"
                 
-                println("Copying addon ${jar.archiveFileName.get()} to ${target.absolutePath}. Base name: $base")
+                logger.info("Copying addon ${jar.archiveFileName.get()} to ${target.absolutePath}. Base name: $base")
                 
                 jar.archiveFile.orNull?.asFile?.copyTo(target)
             }

buildSrc/src/main/kotlin/CompilationConfig.kt

@@ -22,8 +22,8 @@ fun Project.configureCompilation() {
     apply<TectonicDocPlugin>()
     
     configure<JavaPluginExtension> {
-        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_17
+        sourceCompatibility = JavaVersion.VERSION_21
+        targetCompatibility = JavaVersion.VERSION_21
     }
     
     tasks.withType<JavaCompile> {

buildSrc/src/main/kotlin/DependencyConfig.kt

@@ -36,7 +36,7 @@ fun Project.configureDependencies() {
         maven("https://repo.codemc.org/repository/maven-public") {
             name = "CodeMC"
         }
-        maven("https://papermc.io/repo/repository/maven-public/") {
+        maven("https://repo.papermc.io/repository/maven-public/") {
             name = "PaperMC"
         }
         maven("https://files.minecraftforge.net/maven/") {
@@ -48,17 +48,17 @@ fun Project.configureDependencies() {
         maven("https://jitpack.io") {
             name = "JitPack"
         }
-        maven("https://nexuslite.gcnt.net/repos/other/") {
-            name = "GCNT"
+        maven("https://s01.oss.sonatype.org/content/repositories/snapshots/") {
+            name = "Sonatype Snapshots"
         }
     }
     
     dependencies {
-        testImplementation("org.junit.jupiter:junit-jupiter-api:5.7.0")
-        testImplementation("org.junit.jupiter:junit-jupiter-engine:5.7.0")
-        compileOnly("org.jetbrains:annotations:23.0.0")
+        testImplementation("org.junit.jupiter", "junit-jupiter-api", Versions.Libraries.Internal.junit)
+        testImplementation("org.junit.jupiter", "junit-jupiter-engine", Versions.Libraries.Internal.junit)
+        compileOnly("org.jetbrains", "annotations", Versions.Libraries.Internal.jetBrainsAnnotations)
         
-        compileOnly("com.google.guava:guava:30.0-jre")
-        testImplementation("com.google.guava:guava:30.0-jre")
+        compileOnly("com.google.guava", "guava", Versions.Libraries.Internal.guava)
+        testImplementation("com.google.guava", "guava", Versions.Libraries.Internal.guava)
     }
 }

buildSrc/src/main/kotlin/DistributionConfig.kt

@@ -21,13 +21,14 @@ import kotlin.io.path.exists
 
 
 fun Project.configureDistribution() {
-    apply(plugin = "com.github.johnrengelman.shadow")
+    apply(plugin = "com.gradleup.shadow")
     
     val downloadDefaultPacks = tasks.create("downloadDefaultPacks") {
         group = "terra"
         doFirst {
             file("${buildDir}/resources/main/packs/").deleteRecursively()
-            val defaultPackUrl = URL("https://github.com/PolyhedralDev/TerraOverworldConfig/releases/download/latest/default.zip")
+            val defaultPackUrl =
+                URL("https://github.com/PolyhedralDev/TerraOverworldConfig/releases/download/" + Versions.Terra.overworldConfig + "/default.zip")
             downloadPack(defaultPackUrl, project)
         }
     }
@@ -53,7 +54,7 @@ fun Project.configureDistribution() {
                 forSubProjects(":common:addons") {
                     val jar = getJarTask()
                     
-                    println("Packaging addon ${jar.archiveFileName.get()} to $dest. size: ${jar.archiveFile.get().asFile.length() / 1024}KB")
+                    logger.info("Packaging addon ${jar.archiveFileName.get()} to $dest. size: ${jar.archiveFile.get().asFile.length() / 1024}KB")
                     
                     val boot = if (extra.has("bootstrap") && extra.get("bootstrap") as Boolean) "bootstrap/" else ""
                     val addonPath = fs.getPath("/addons/$boot${jar.archiveFileName.get()}")

buildSrc/src/main/kotlin/Utils.kt

@@ -42,10 +42,10 @@ fun preRelease(preRelease: Boolean) {
 fun Project.versionProjects(project: String, version: String) {
     forSubProjects(project) {
         this.version = version
-        println("Setting version of $path to $version")
+        logger.info("Setting version of $path to $version")
     }
     project(project).version = version
-    println("Setting version of $project to $version")
+    logger.info("Setting version of $project to $version")
 }
 
 fun Project.version(version: String): String {

buildSrc/src/main/kotlin/Versions.kt

@@ -1,26 +1,35 @@
 object Versions {
+    object Terra {
+        const val overworldConfig = "v1.3.4"
+    }
+    
     object Libraries {
         const val tectonic = "4.2.1"
         const val paralithic = "0.7.1"
         const val strata = "1.3.2"
         
-        const val cloud = "1.8.4"
+        const val cloud = "2.0.0"
+        const val cloudPaper = "2.0.0-beta.10"
+        const val cloudFabric = "2.0.0-beta.9"
         
-        const val slf4j = "2.0.9"
-        const val log4j_slf4j_impl = "2.20.0"
+        const val caffeine = "3.1.8"
         
+        const val slf4j = "2.0.16"
+
         object Internal {
-            const val shadow = "8.1.1"
-            const val apacheText = "1.10.0"
-            const val apacheIO = "2.14.0"
-            const val guava = "32.1.3-jre"
-            const val asm = "9.5"
-            const val snakeYml = "2.2"
+            const val shadow = "8.3.1"
+            const val apacheText = "1.12.0"
+            const val apacheIO = "2.16.1"
+            const val guava = "33.3.0-jre"
+            const val asm = "9.7"
+            const val snakeYml = "2.3"
+            const val jetBrainsAnnotations = "24.1.0"
+            const val junit = "5.11.0"
         }
     }
     
     object Fabric {
-        const val fabricAPI = "0.90.0+${Mod.minecraft}"
+        const val fabricAPI = "0.104.0+${Mod.minecraft}"
     }
 //
 //    object Quilt {
@@ -29,32 +38,30 @@ object Versions {
 //    }
     
     object Mod {
-        const val mixin = "0.12.5+mixin.0.8.5"
+        const val mixin = "0.15.3+mixin.0.8.7"
         
-        const val minecraft = "1.20.2"
-        const val yarn = "$minecraft+build.4"
-        const val fabricLoader = "0.14.23"
+        const val minecraft = "1.21.1"
+        const val yarn = "$minecraft+build.3"
+        const val fabricLoader = "0.16.5"
         
-        const val architecuryLoom = "1.3.357"
-        const val architecturyPlugin = "3.4.146"
-        
-        const val loomVineflower = "1.11.0"
-    }
-    
-    object Forge {
-        const val forge = "${Mod.minecraft}-48.0.13"
-        const val burningwave = "12.63.0"
+        const val architecuryLoom = "1.7.413"
+        const val architecturyPlugin = "3.4.159"
     }
+//
+//    object Forge {
+//        const val forge = "${Mod.minecraft}-48.0.13"
+//        const val burningwave = "12.63.0"
+//    }
     
     object Bukkit {
-        const val paper = "1.18.2-R0.1-SNAPSHOT"
-        const val paperLib = "1.0.5"
-        const val foliaLib = "0.2.5"
-        const val minecraft = "1.20.2"
-        const val reflectionRemapper = "0.1.0-SNAPSHOT"
-        const val paperDevBundle = "1.20.2-R0.1-SNAPSHOT"
-        const val runPaper = "2.2.0"
-        const val paperWeight = "1.5.6"
+        const val minecraft = "1.21.1"
+        const val paperBuild = "$minecraft-R0.1-20240917.151311-80"
+        const val paper = paperBuild
+        const val paperLib = "1.0.8"
+        const val reflectionRemapper = "0.1.1"
+        const val paperDevBundle = paperBuild
+        const val runPaper = "2.3.1"
+        const val paperWeight = "1.7.2"
     }
     
     //
@@ -66,6 +73,7 @@ object Versions {
 //
     object CLI {
         const val nbt = "6.1"
-        const val logback = "1.4.11"
+        const val logback = "1.5.8"
+        const val picocli = "4.7.6"
     }
 }

buildSrc/src/main/kotlin/com/dfsek/terra/tectonicdoc/GenerateDocsTask.kt

@@ -82,7 +82,7 @@ abstract class GenerateDocsTask : DefaultTask() {
                         }
                         
                         template.add(keyName.toString(), description.toString().ifBlank {
-                            println("No description provided for field " + field.name + " in class " + name)
+                            logger.info("No description provided for field " + field.name + " in class " + name)
                             "*No description provided.*"
                         })
                     }

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/api/Extrusion.java

@@ -1,9 +1,9 @@
 package com.dfsek.terra.addons.biome.extrusion.api;
 
-import java.util.Collection;
-
 import com.dfsek.terra.api.world.biome.Biome;
 
+import java.util.Collection;
+
 
 public interface Extrusion {
     Biome extrude(Biome original, int x, int y, int z, long seed);

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/extrusions/ReplaceExtrusion.java

@@ -1,5 +1,9 @@
 package com.dfsek.terra.addons.biome.extrusion.extrusions;
 
+import java.util.Collection;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+
 import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
 import com.dfsek.terra.addons.biome.extrusion.api.ReplaceableBiome;
 import com.dfsek.terra.addons.biome.query.api.BiomeQueries;
@@ -8,10 +12,6 @@ import com.dfsek.terra.api.util.Range;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
 import com.dfsek.terra.api.world.biome.Biome;
 
-import java.util.Collection;
-import java.util.function.Predicate;
-import java.util.stream.Collectors;
-
 
 /**
  * Sets biomes at locations based on a sampler.

common/addons/biome-provider-image-v2/src/main/java/com/dfsek/terra/addons/biome/image/v2/ImageBiomeProvider.java

@@ -7,13 +7,13 @@
 
 package com.dfsek.terra.addons.biome.image.v2;
 
+import java.util.Optional;
+
 import com.dfsek.terra.addons.image.colorsampler.ColorSampler;
 import com.dfsek.terra.addons.image.converter.ColorConverter;
 import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
 
-import java.util.Optional;
-
 
 public class ImageBiomeProvider implements BiomeProvider {
     private final int resolution;

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/BiomePipelineTemplate.java

@@ -29,7 +29,7 @@ public class BiomePipelineTemplate implements ObjectTemplate<BiomeProvider> {
     @Default
     @Description("""
                  The resolution at which to sample biomes.
-                                  
+                 
                  Larger values are quadratically faster, but produce lower quality results.
                  For example, a value of 3 would sample every 3 blocks.""")
     protected @Meta int resolution = 1;

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/pipeline/BiomeChunkImpl.java

@@ -14,7 +14,8 @@ public class BiomeChunkImpl implements BiomeChunk {
     private final SeededVector worldOrigin;
     private final int chunkOriginArrayIndex;
     private final int worldCoordinateScale;
-    private PipelineBiome[][] biomes;
+    private final int size;
+    private PipelineBiome[] biomes;
 
     public BiomeChunkImpl(SeededVector worldOrigin, PipelineImpl pipeline) {
 
@@ -22,14 +23,14 @@ public class BiomeChunkImpl implements BiomeChunk {
         this.chunkOriginArrayIndex = pipeline.getChunkOriginArrayIndex();
         this.worldCoordinateScale = pipeline.getResolution();
 
-        int size = pipeline.getArraySize();
+        this.size = pipeline.getArraySize();
 
         int expanderCount = pipeline.getExpanderCount();
         int expansionsApplied = 0;
 
         // Allocate working arrays
-        this.biomes = new PipelineBiome[size][size];
-        PipelineBiome[][] lookupArray = new PipelineBiome[size][size];
+        this.biomes = new PipelineBiome[size * size];
+        PipelineBiome[] lookupArray = new PipelineBiome[size * size];
         // A second lookup array is required such that stage application doesn't affect lookups, otherwise application may cascade
 
         // Construct working grid
@@ -43,7 +44,7 @@ public class BiomeChunkImpl implements BiomeChunk {
             for(int gridZ = 0; gridZ < gridSize; gridZ++) {
                 int xIndex = gridOrigin + gridX * gridInterval;
                 int zIndex = gridOrigin + gridZ * gridInterval;
-                biomes[xIndex][zIndex] = pipeline.getSource().get(worldOrigin.seed(), xIndexToWorldCoordinate(xIndex),
+                biomes[(xIndex * size) + zIndex] = pipeline.getSource().get(worldOrigin.seed(), xIndexToWorldCoordinate(xIndex),
                     zIndexToWorldCoordinate(zIndex));
             }
         }
@@ -65,7 +66,7 @@ public class BiomeChunkImpl implements BiomeChunk {
 
             // Cycle arrays, the previously populated array is swapped to be used for lookups, and the result of the stage application
             // overwrites the previous lookup array. This saves having to allocate a new array copy each time
-            PipelineBiome[][] tempArray = biomes;
+            PipelineBiome[] tempArray = biomes;
             biomes = lookupArray;
             lookupArray = tempArray;
 
@@ -74,7 +75,8 @@ public class BiomeChunkImpl implements BiomeChunk {
                 for(int gridX = 0; gridX < gridSize; gridX = gridX + 1) {
                     int xIndex = gridOrigin + gridX * gridInterval;
                     int zIndex = gridOrigin + gridZ * gridInterval;
-                    biomes[xIndex][zIndex] = stage.apply(new ViewPoint(this, gridInterval, gridX, gridZ, xIndex, zIndex, lookupArray));
+                    biomes[(xIndex * size) + zIndex] = stage.apply(
+                        new ViewPoint(this, gridInterval, gridX, gridZ, xIndex, zIndex, lookupArray, size));
                 }
             }
         }
@@ -133,7 +135,7 @@ public class BiomeChunkImpl implements BiomeChunk {
     public PipelineBiome get(int xInChunk, int zInChunk) {
         int xIndex = xInChunk + chunkOriginArrayIndex;
         int zIndex = zInChunk + chunkOriginArrayIndex;
-        return biomes[xIndex][zIndex];
+        return biomes[(xIndex * size) + zIndex];
     }
 
     private int xIndexToWorldCoordinate(int xIndex) {
@@ -159,10 +161,11 @@ public class BiomeChunkImpl implements BiomeChunk {
         private final int gridZ;
         private final int xIndex;
         private final int zIndex;
-        private final PipelineBiome[][] lookupArray;
+        private final PipelineBiome[] lookupArray;
+        private final int size;
 
         private ViewPoint(BiomeChunkImpl chunk, int gridInterval, int gridX, int gridZ, int xIndex, int zIndex,
-                          PipelineBiome[][] lookupArray) {
+                          PipelineBiome[] lookupArray, int size) {
             this.chunk = chunk;
             this.gridInterval = gridInterval;
             this.gridX = gridX;
@@ -170,13 +173,14 @@ public class BiomeChunkImpl implements BiomeChunk {
             this.xIndex = xIndex;
             this.zIndex = zIndex;
             this.lookupArray = lookupArray;
-            this.biome = lookupArray[xIndex][zIndex];
+            this.size = size;
+            this.biome = lookupArray[(this.xIndex * this.size) + this.zIndex];
         }
 
         public PipelineBiome getRelativeBiome(int x, int z) {
             int lookupXIndex = this.xIndex + x * gridInterval;
             int lookupZIndex = this.zIndex + z * gridInterval;
-            return lookupArray[lookupXIndex][lookupZIndex];
+            return lookupArray[(lookupXIndex * this.size) + lookupZIndex];
         }
 
         public PipelineBiome getBiome() {

common/addons/biome-provider-pipeline/src/main/java/com/dfsek/terra/addons/biome/pipeline/config/BiomePipelineTemplate.java

@@ -28,7 +28,7 @@ public class BiomePipelineTemplate extends BiomeProviderTemplate {
     @Description("""
                  The initial size of biome chunks. This value must be at least 2.
                  <b>This is not the final size of biome chunks. Final chunks will be much larger</b>.
-                                  
+                 
                  It is recommended to keep biome chunks' final size in the range of [50, 300]
                  to prevent performance issues. To calculate the size of biome chunks, simply
                  take initial-size and for each expand stage, multiply the running value by 2

common/addons/biome-provider-pipeline/src/main/java/com/dfsek/terra/addons/biome/pipeline/config/BiomeProviderTemplate.java

@@ -22,7 +22,7 @@ public abstract class BiomeProviderTemplate implements ObjectTemplate<BiomeProvi
     @Default
     @Description("""
                  The resolution at which to sample biomes.
-                                  
+                 
                  Larger values are quadratically faster, but produce lower quality results.
                  For example, a value of 3 would sample every 3 blocks.""")
     protected @Meta int resolution = 1;

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/NoiseChunkGenerator3DAddon.java

@@ -13,6 +13,7 @@ import com.dfsek.terra.addons.chunkgenerator.config.noise.BiomeNoiseProperties;
 import com.dfsek.terra.addons.chunkgenerator.config.palette.BiomePaletteTemplate;
 import com.dfsek.terra.addons.chunkgenerator.config.palette.slant.SlantLayerTemplate;
 import com.dfsek.terra.addons.chunkgenerator.generation.NoiseChunkGenerator3D;
+import com.dfsek.terra.addons.chunkgenerator.generation.math.SlantCalculationMethod;
 import com.dfsek.terra.addons.chunkgenerator.palette.BiomePaletteInfo;
 import com.dfsek.terra.addons.chunkgenerator.palette.slant.SlantHolder;
 import com.dfsek.terra.addons.manifest.api.AddonInitializer;
@@ -45,8 +46,8 @@ public class NoiseChunkGenerator3DAddon implements AddonInitializer {
             .priority(1000)
             .then(event -> {
 
-                event.getPack().applyLoader(SlantHolder.CalculationMethod.class,
-                    (type, o, loader, depthTracker) -> SlantHolder.CalculationMethod.valueOf((String) o));
+                event.getPack().applyLoader(SlantCalculationMethod.class,
+                    (type, o, loader, depthTracker) -> SlantCalculationMethod.valueOf((String) o));
 
                 NoiseChunkGeneratorPackConfigTemplate config = event.loadTemplate(new NoiseChunkGeneratorPackConfigTemplate());
                 event.getPack().getContext().put(config);
@@ -57,7 +58,8 @@ public class NoiseChunkGenerator3DAddon implements AddonInitializer {
                         pack -> new NoiseChunkGenerator3D(pack, platform, config.getElevationBlend(),
                             config.getHorizontalRes(),
                             config.getVerticalRes(), noisePropertiesPropertyKey,
-                            paletteInfoPropertyKey));
+                            paletteInfoPropertyKey, config.getSlantCalculationMethod(),
+                            config.isSlantPalettesEnabled()));
                 event.getPack()
                     .applyLoader(SlantHolder.Layer.class, SlantLayerTemplate::new);
             })

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/config/NoiseChunkGeneratorPackConfigTemplate.java

@@ -4,7 +4,7 @@ import com.dfsek.tectonic.api.config.template.ConfigTemplate;
 import com.dfsek.tectonic.api.config.template.annotations.Default;
 import com.dfsek.tectonic.api.config.template.annotations.Value;
 
-import com.dfsek.terra.addons.chunkgenerator.palette.slant.SlantHolder;
+import com.dfsek.terra.addons.chunkgenerator.generation.math.SlantCalculationMethod;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.api.properties.Properties;
 
@@ -24,7 +24,11 @@ public class NoiseChunkGeneratorPackConfigTemplate implements ConfigTemplate, Pr
 
     @Value("slant.calculation-method")
     @Default
-    private SlantHolder.@Meta CalculationMethod slantCalculationMethod = SlantHolder.CalculationMethod.Derivative;
+    private @Meta SlantCalculationMethod slantCalculationMethod = SlantCalculationMethod.Derivative;
+
+    @Value("slant.disable-palettes")
+    @Default
+    private @Meta boolean disableSlantPalettes = false;
 
     public int getElevationBlend() {
         return elevationBlend;
@@ -38,7 +42,11 @@ public class NoiseChunkGeneratorPackConfigTemplate implements ConfigTemplate, Pr
         return verticalRes;
     }
 
-    public SlantHolder.CalculationMethod getSlantCalculationMethod() {
+    public SlantCalculationMethod getSlantCalculationMethod() {
         return slantCalculationMethod;
     }
+
+    public boolean isSlantPalettesEnabled() {
+        return !disableSlantPalettes;
+    }
 }

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/config/palette/BiomePaletteTemplate.java

@@ -16,6 +16,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
+import com.dfsek.terra.addons.chunkgenerator.generation.math.SlantCalculationMethod;
 import com.dfsek.terra.addons.chunkgenerator.palette.BiomePaletteInfo;
 import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolder;
 import com.dfsek.terra.addons.chunkgenerator.palette.slant.SlantHolder;
@@ -27,7 +28,7 @@ import com.dfsek.terra.api.world.chunk.generation.util.Palette;
 
 public class BiomePaletteTemplate implements ObjectTemplate<BiomePaletteInfo> {
     private final Platform platform;
-    private final SlantHolder.CalculationMethod slantCalculationMethod;
+    private final SlantCalculationMethod slantCalculationMethod;
     @Value("slant")
     @Default
     @Description("The slant palettes to use in this biome.")
@@ -56,7 +57,7 @@ public class BiomePaletteTemplate implements ObjectTemplate<BiomePaletteInfo> {
     @Default
     private @Meta boolean updatePalette = false;
 
-    public BiomePaletteTemplate(Platform platform, SlantHolder.CalculationMethod slantCalculationMethod) {
+    public BiomePaletteTemplate(Platform platform, SlantCalculationMethod slantCalculationMethod) {
         this.platform = platform;
         this.slantCalculationMethod = slantCalculationMethod;
     }

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/generation/NoiseChunkGenerator3D.java

@@ -11,11 +11,12 @@ package com.dfsek.terra.addons.chunkgenerator.generation;
 import org.jetbrains.annotations.NotNull;
 
 import com.dfsek.terra.addons.chunkgenerator.config.noise.BiomeNoiseProperties;
-import com.dfsek.terra.addons.chunkgenerator.generation.math.PaletteUtil;
+import com.dfsek.terra.addons.chunkgenerator.generation.math.SlantCalculationMethod;
 import com.dfsek.terra.addons.chunkgenerator.generation.math.interpolation.LazilyEvaluatedInterpolator;
 import com.dfsek.terra.addons.chunkgenerator.generation.math.samplers.Sampler3D;
 import com.dfsek.terra.addons.chunkgenerator.generation.math.samplers.SamplerProvider;
 import com.dfsek.terra.addons.chunkgenerator.palette.BiomePaletteInfo;
+import com.dfsek.terra.addons.chunkgenerator.palette.slant.SlantHolder;
 import com.dfsek.terra.api.Platform;
 import com.dfsek.terra.api.block.state.BlockState;
 import com.dfsek.terra.api.config.ConfigPack;
@@ -42,16 +43,23 @@ public class NoiseChunkGenerator3D implements ChunkGenerator {
     private final PropertyKey<BiomePaletteInfo> paletteInfoPropertyKey;
     private final PropertyKey<BiomeNoiseProperties> noisePropertiesKey;
 
+    private final SlantCalculationMethod slantCalculationMethod;
+
+    private final boolean useSlantPalettes;
+
     public NoiseChunkGenerator3D(ConfigPack pack, Platform platform, int elevationBlend, int carverHorizontalResolution,
                                  int carverVerticalResolution,
                                  PropertyKey<BiomeNoiseProperties> noisePropertiesKey,
-                                 PropertyKey<BiomePaletteInfo> paletteInfoPropertyKey) {
+                                 PropertyKey<BiomePaletteInfo> paletteInfoPropertyKey,
+                                 SlantCalculationMethod slantCalculationMethod, boolean useSlantPalettes) {
         this.platform = platform;
         this.air = platform.getWorldHandle().air();
         this.carverHorizontalResolution = carverHorizontalResolution;
         this.carverVerticalResolution = carverVerticalResolution;
         this.paletteInfoPropertyKey = paletteInfoPropertyKey;
         this.noisePropertiesKey = noisePropertiesKey;
+        this.slantCalculationMethod = slantCalculationMethod;
+        this.useSlantPalettes = useSlantPalettes;
         int maxBlend = pack
             .getBiomeProvider()
             .stream()
@@ -63,6 +71,17 @@ public class NoiseChunkGenerator3D implements ChunkGenerator {
         this.samplerCache = new SamplerProvider(platform, elevationBlend, noisePropertiesKey, maxBlend);
     }
 
+    private Palette paletteAt(int x, int y, int z, Sampler3D sampler, BiomePaletteInfo paletteInfo, int depth) {
+        SlantHolder slantHolder = paletteInfo.slantHolder();
+        if(useSlantPalettes && slantHolder.isAboveDepth(depth)) {
+            double slant = slantCalculationMethod.slant(sampler, x, y, z);
+            if(slantHolder.isInSlantThreshold(slant)) {
+                return slantHolder.getPalette(slant).getPalette(y);
+            }
+        }
+        return paletteInfo.paletteHolder().getPalette(y);
+    }
+
     @Override
     @SuppressWarnings("try")
     public void generateChunkData(@NotNull ProtoChunk chunk, @NotNull WorldProperties world,
@@ -103,8 +122,7 @@ public class NoiseChunkGenerator3D implements ChunkGenerator {
 
                     if(sampler.sample(x, y, z) > 0) {
                         if(carver.sample(x, y, z) <= 0) {
-                            data = PaletteUtil
-                                .getPalette(x, y, z, sampler, paletteInfo, paletteLevel)
+                            data = paletteAt(x, y, z, sampler, paletteInfo, paletteLevel)
                                 .get(paletteLevel, cx, y, cz, seed);
                             chunk.setBlock(x, y, z, data);
                             paletteLevel++;
@@ -135,7 +153,7 @@ public class NoiseChunkGenerator3D implements ChunkGenerator {
         int fdX = Math.floorMod(x, 16);
         int fdZ = Math.floorMod(z, 16);
 
-        Palette palette = PaletteUtil.getPalette(fdX, y, fdZ, sampler, paletteInfo, 0);
+        Palette palette = paletteAt(fdX, y, fdZ, sampler, paletteInfo, 0);
         double noise = sampler.sample(fdX, y, fdZ);
         if(noise > 0) {
             int level = 0;
@@ -157,11 +175,8 @@ public class NoiseChunkGenerator3D implements ChunkGenerator {
     public double getSlant(int x, int y, int z, WorldProperties world, BiomeProvider biomeProvider) {
         int fdX = Math.floorMod(x, 16);
         int fdZ = Math.floorMod(z, 16);
-        return biomeProvider.getBiome(x, y, z, world.getSeed())
-            .getContext()
-            .get(paletteInfoPropertyKey)
-            .slantHolder()
-            .calculateSlant(samplerCache.get(x, z, world, biomeProvider), fdX, y, fdZ);
+        Sampler3D sampler = samplerCache.get(x, z, world, biomeProvider);
+        return slantCalculationMethod.slant(sampler, fdX, y, fdZ);
     }
 
     public SamplerProvider samplerProvider() {

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/generation/math/PaletteUtil.java

@@ -1,29 +0,0 @@
-/*
- * Copyright (c) 2020-2023 Polyhedral Development
- *
- * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
- * reference the LICENSE file in this module's root directory.
- */
-
-package com.dfsek.terra.addons.chunkgenerator.generation.math;
-
-import com.dfsek.terra.addons.chunkgenerator.generation.math.samplers.Sampler3D;
-import com.dfsek.terra.addons.chunkgenerator.palette.BiomePaletteInfo;
-import com.dfsek.terra.addons.chunkgenerator.palette.slant.SlantHolder;
-import com.dfsek.terra.api.world.chunk.generation.util.Palette;
-
-
-public final class PaletteUtil {
-
-    public static Palette getPalette(int x, int y, int z, Sampler3D sampler, BiomePaletteInfo paletteInfo, int depth) {
-        SlantHolder slantHolder = paletteInfo.slantHolder();
-        if(slantHolder.isAboveDepth(depth)) {
-            double slant = slantHolder.calculateSlant(sampler, x, y, z);
-            if(slantHolder.isInSlantThreshold(slant)) {
-                return slantHolder.getPalette(slant).getPalette(y);
-            }
-        }
-
-        return paletteInfo.paletteHolder().getPalette(y);
-    }
-}

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/generation/math/SlantCalculationMethod.java

@@ -0,0 +1,69 @@
+package com.dfsek.terra.addons.chunkgenerator.generation.math;
+
+import com.dfsek.terra.addons.chunkgenerator.generation.math.samplers.Sampler3D;
+import com.dfsek.terra.api.util.vector.Vector3;
+
+
+public enum SlantCalculationMethod {
+    DotProduct {
+        private static final Vector3 DOT_PRODUCT_DIRECTION = Vector3.of(0, 1, 0);
+
+        private static final Vector3[] DOT_PRODUCT_SAMPLE_POINTS = {
+            Vector3.of(0, 0, -DERIVATIVE_DIST),
+            Vector3.of(0, 0, DERIVATIVE_DIST),
+            Vector3.of(0, -DERIVATIVE_DIST, 0),
+            Vector3.of(0, DERIVATIVE_DIST, 0),
+            Vector3.of(-DERIVATIVE_DIST, 0, 0),
+            Vector3.of(DERIVATIVE_DIST, 0, 0)
+        };
+
+        @Override
+        public double slant(Sampler3D sampler, double x, double y, double z) {
+            Vector3.Mutable normalApproximation = Vector3.Mutable.of(0, 0, 0);
+            for(Vector3 point : DOT_PRODUCT_SAMPLE_POINTS) {
+                var scalar = -sampler.sample(x + point.getX(), y + point.getY(), z + point.getZ());
+                normalApproximation.add(point.mutable().multiply(scalar));
+            }
+            return DOT_PRODUCT_DIRECTION.dot(normalApproximation.normalize());
+        }
+
+        @Override
+        public boolean floorToThreshold() {
+            return false;
+        }
+    },
+
+    Derivative {
+        @Override
+        public double slant(Sampler3D sampler, double x, double y, double z) {
+            double baseSample = sampler.sample(x, y, z);
+
+            double xVal1 = (sampler.sample(x + DERIVATIVE_DIST, y, z) - baseSample) / DERIVATIVE_DIST;
+            double xVal2 = (sampler.sample(x - DERIVATIVE_DIST, y, z) - baseSample) / DERIVATIVE_DIST;
+            double zVal1 = (sampler.sample(x, y, z + DERIVATIVE_DIST) - baseSample) / DERIVATIVE_DIST;
+            double zVal2 = (sampler.sample(x, y, z - DERIVATIVE_DIST) - baseSample) / DERIVATIVE_DIST;
+            double yVal1 = (sampler.sample(x, y + DERIVATIVE_DIST, z) - baseSample) / DERIVATIVE_DIST;
+            double yVal2 = (sampler.sample(x, y - DERIVATIVE_DIST, z) - baseSample) / DERIVATIVE_DIST;
+
+            return Math.sqrt(
+                ((xVal2 - xVal1) * (xVal2 - xVal1)) + ((zVal2 - zVal1) * (zVal2 - zVal1)) + ((yVal2 - yVal1) * (yVal2 - yVal1)));
+        }
+
+        @Override
+        public boolean floorToThreshold() {
+            return true;
+        }
+    };
+
+    private static final double DERIVATIVE_DIST = 0.55;
+
+    public abstract double slant(Sampler3D sampler, double x, double y, double z);
+
+    /*
+     * Controls whether palettes should be applied before or after their respective thresholds.
+     *
+     * If true, slant values will map to the palette of the next floor threshold, otherwise they
+     * will map to the ceiling.
+     */
+    public abstract boolean floorToThreshold();
+}

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/palette/slant/MultipleSlantHolder.java

@@ -14,6 +14,7 @@ import java.util.TreeMap;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import com.dfsek.terra.addons.chunkgenerator.generation.math.SlantCalculationMethod;
 import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolder;
 
 
@@ -21,7 +22,7 @@ public class MultipleSlantHolder extends SlantHolderImpl {
     private final NavigableMap<Double, PaletteHolder> layers;
     private final double slantThreshold;
 
-    MultipleSlantHolder(List<SlantHolder.Layer> slant, int slantDepth, CalculationMethod calculationMethod) {
+    MultipleSlantHolder(List<SlantHolder.Layer> slant, int slantDepth, SlantCalculationMethod calculationMethod) {
         super(slantDepth, calculationMethod);
         NavigableMap<Double, PaletteHolder> layers = new TreeMap<>(
             slant.stream().collect(Collectors.toMap(SlantHolder.Layer::threshold, SlantHolder.Layer::palette)));

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/palette/slant/SingleSlantHolder.java

@@ -1,5 +1,6 @@
 package com.dfsek.terra.addons.chunkgenerator.palette.slant;
 
+import com.dfsek.terra.addons.chunkgenerator.generation.math.SlantCalculationMethod;
 import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolder;
 
 
@@ -7,7 +8,7 @@ final class SingleSlantHolder extends SlantHolderImpl {
 
     private final SlantHolder.Layer layer;
 
-    public SingleSlantHolder(SlantHolder.Layer layer, int slantDepth, CalculationMethod calculationMethod) {
+    public SingleSlantHolder(SlantHolder.Layer layer, int slantDepth, SlantCalculationMethod calculationMethod) {
         super(slantDepth, calculationMethod);
         this.layer = layer;
     }

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/palette/slant/SlantHolder.java

@@ -2,19 +2,13 @@ package com.dfsek.terra.addons.chunkgenerator.palette.slant;
 
 import java.util.List;
 
-import com.dfsek.terra.addons.chunkgenerator.generation.math.samplers.Sampler3D;
+import com.dfsek.terra.addons.chunkgenerator.generation.math.SlantCalculationMethod;
 import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolder;
-import com.dfsek.terra.api.util.vector.Vector3;
 
 
 public interface SlantHolder {
 
     SlantHolder EMPTY = new SlantHolder() {
-        @Override
-        public double calculateSlant(Sampler3D sampler, double x, double y, double z) {
-            throw new UnsupportedOperationException("Empty holder should not calculate slant");
-        }
-
         @Override
         public boolean isAboveDepth(int depth) {
             return false;
@@ -31,7 +25,7 @@ public interface SlantHolder {
         }
     };
 
-    static SlantHolder of(List<SlantHolder.Layer> layers, int slantDepth, CalculationMethod calculationMethod) {
+    static SlantHolder of(List<SlantHolder.Layer> layers, int slantDepth, SlantCalculationMethod calculationMethod) {
         if(layers.isEmpty()) {
             return EMPTY;
         } else if(layers.size() == 1) {
@@ -40,8 +34,6 @@ public interface SlantHolder {
         return new MultipleSlantHolder(layers, slantDepth, calculationMethod);
     }
 
-    double calculateSlant(Sampler3D sampler, double x, double y, double z);
-
     boolean isAboveDepth(int depth);
 
     boolean isInSlantThreshold(double slant);
@@ -49,71 +41,6 @@ public interface SlantHolder {
     PaletteHolder getPalette(double slant);
 
 
-    enum CalculationMethod {
-        DotProduct {
-            private static final Vector3 DOT_PRODUCT_DIRECTION = Vector3.of(0, 1, 0);
-
-            private static final Vector3[] DOT_PRODUCT_SAMPLE_POINTS = {
-                Vector3.of(0, 0, -DERIVATIVE_DIST),
-                Vector3.of(0, 0, DERIVATIVE_DIST),
-                Vector3.of(0, -DERIVATIVE_DIST, 0),
-                Vector3.of(0, DERIVATIVE_DIST, 0),
-                Vector3.of(-DERIVATIVE_DIST, 0, 0),
-                Vector3.of(DERIVATIVE_DIST, 0, 0)
-            };
-
-            @Override
-            public double slant(Sampler3D sampler, double x, double y, double z) {
-                Vector3.Mutable normalApproximation = Vector3.Mutable.of(0, 0, 0);
-                for(Vector3 point : DOT_PRODUCT_SAMPLE_POINTS) {
-                    var scalar = -sampler.sample(x + point.getX(), y + point.getY(), z + point.getZ());
-                    normalApproximation.add(point.mutable().multiply(scalar));
-                }
-                return DOT_PRODUCT_DIRECTION.dot(normalApproximation.normalize());
-            }
-
-            @Override
-            public boolean floorToThreshold() {
-                return false;
-            }
-        },
-
-        Derivative {
-            @Override
-            public double slant(Sampler3D sampler, double x, double y, double z) {
-                double baseSample = sampler.sample(x, y, z);
-
-                double xVal1 = (sampler.sample(x + DERIVATIVE_DIST, y, z) - baseSample) / DERIVATIVE_DIST;
-                double xVal2 = (sampler.sample(x - DERIVATIVE_DIST, y, z) - baseSample) / DERIVATIVE_DIST;
-                double zVal1 = (sampler.sample(x, y, z + DERIVATIVE_DIST) - baseSample) / DERIVATIVE_DIST;
-                double zVal2 = (sampler.sample(x, y, z - DERIVATIVE_DIST) - baseSample) / DERIVATIVE_DIST;
-                double yVal1 = (sampler.sample(x, y + DERIVATIVE_DIST, z) - baseSample) / DERIVATIVE_DIST;
-                double yVal2 = (sampler.sample(x, y - DERIVATIVE_DIST, z) - baseSample) / DERIVATIVE_DIST;
-
-                return Math.sqrt(
-                    ((xVal2 - xVal1) * (xVal2 - xVal1)) + ((zVal2 - zVal1) * (zVal2 - zVal1)) + ((yVal2 - yVal1) * (yVal2 - yVal1)));
-            }
-
-            @Override
-            public boolean floorToThreshold() {
-                return true;
-            }
-        };
-
-        private static final double DERIVATIVE_DIST = 0.55;
-
-        public abstract double slant(Sampler3D sampler, double x, double y, double z);
-
-        /*
-         * Controls whether palettes should be applied before or after their respective thresholds.
-         *
-         * If true, slant values will map to the palette of the next floor threshold, otherwise they
-         * will map to the ceiling.
-         */
-        public abstract boolean floorToThreshold();
-    }
-
-
     record Layer(PaletteHolder palette, double threshold) {
     }
 }

common/addons/chunk-generator-noise-3d/src/main/java/com/dfsek/terra/addons/chunkgenerator/palette/slant/SlantHolderImpl.java

@@ -1,26 +1,19 @@
 package com.dfsek.terra.addons.chunkgenerator.palette.slant;
 
-import com.dfsek.terra.addons.chunkgenerator.generation.math.samplers.Sampler3D;
+import com.dfsek.terra.addons.chunkgenerator.generation.math.SlantCalculationMethod;
 
 
 public abstract class SlantHolderImpl implements SlantHolder {
     protected final boolean floorToThreshold;
-    private final SlantHolder.CalculationMethod calculationMethod;
     private final int slantDepth;
 
-    protected SlantHolderImpl(int slantDepth, CalculationMethod calculationMethod) {
+    protected SlantHolderImpl(int slantDepth, SlantCalculationMethod calculationMethod) {
         this.floorToThreshold = calculationMethod.floorToThreshold();
-        this.calculationMethod = calculationMethod;
         this.slantDepth = slantDepth;
     }
 
     protected abstract double getSlantThreshold();
 
-    @Override
-    public final double calculateSlant(Sampler3D sampler, double x, double y, double z) {
-        return calculationMethod.slant(sampler, x, y, z);
-    }
-
     @Override
     public final boolean isAboveDepth(int depth) {
         return depth <= slantDepth;

common/addons/command-addons/src/main/java/com/dfsek/terra/addons/commands/addons/AddonsCommandAddon.java

@@ -1,7 +1,7 @@
 package com.dfsek.terra.addons.commands.addons;
 
-import cloud.commandframework.ArgumentDescription;
-import cloud.commandframework.CommandManager;
+import org.incendo.cloud.CommandManager;
+import org.incendo.cloud.description.Description;
 
 import com.dfsek.terra.addons.manifest.api.AddonInitializer;
 import com.dfsek.terra.api.Platform;
@@ -30,7 +30,7 @@ public class AddonsCommandAddon implements AddonInitializer {
                 CommandManager<CommandSender> manager = event.getCommandManager();
 
                 manager.command(
-                        manager.commandBuilder("addons", ArgumentDescription.of("List installed Terra addons"))
+                        manager.commandBuilder("addons", Description.of("List installed Terra addons"))
                             .permission("terra.addons")
                             .handler(context -> {
                                 StringBuilder addons = new StringBuilder("Installed addons:\n");
@@ -41,7 +41,7 @@ public class AddonsCommandAddon implements AddonInitializer {
                                         .append('@')
                                         .append(addon.getVersion().getFormatted())
                                         .append('\n'));
-                                context.getSender().sendMessage(addons.toString());
+                                context.sender().sendMessage(addons.toString());
                             })
                     )
                     .command(
@@ -61,7 +61,7 @@ public class AddonsCommandAddon implements AddonInitializer {
                                     .append('@')
                                     .append(versions.getFormatted())
                                     .append('\n'));
-                                context.getSender().sendMessage(addonInfo.toString());
+                                context.sender().sendMessage(addonInfo.toString());
                             })
                     );
             });

common/addons/command-packs/src/main/java/com/dfsek/terra/addons/commands/packs/PacksCommandAddon.java

@@ -1,7 +1,7 @@
 package com.dfsek.terra.addons.commands.packs;
 
-import cloud.commandframework.ArgumentDescription;
-import cloud.commandframework.CommandManager;
+import org.incendo.cloud.CommandManager;
+import org.incendo.cloud.description.Description;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -35,7 +35,7 @@ public class PacksCommandAddon implements AddonInitializer {
                 CommandManager<CommandSender> manager = event.getCommandManager();
 
                 manager.command(
-                        manager.commandBuilder("packs", ArgumentDescription.of("List installed config packs"))
+                        manager.commandBuilder("packs", Description.of("List installed config packs"))
                             .permission("terra.packs")
                             .handler(context -> {
                                 StringBuilder packs = new StringBuilder("Installed packs:\n");
@@ -43,12 +43,12 @@ public class PacksCommandAddon implements AddonInitializer {
                                     .append(pack.getID())
                                     .append('@')
                                     .append(pack.getVersion().getFormatted()));
-                                context.getSender().sendMessage(packs.toString());
+                                context.sender().sendMessage(packs.toString());
                             })
                     )
                     .command(
                         manager.commandBuilder("packs")
-                            .literal("info", ArgumentDescription.of("Get information about a pack"))
+                            .literal("info", Description.of("Get information about a pack"))
                             .permission("terra.packs.info")
                             .argument(RegistryArgument.of("pack", platform.getConfigRegistry()))
                             .handler(context -> {
@@ -65,21 +65,21 @@ public class PacksCommandAddon implements AddonInitializer {
                                     .append('@')
                                     .append(versions.getFormatted())
                                     .append('\n'));
-                                context.getSender().sendMessage(packInfo.toString());
+                                context.sender().sendMessage(packInfo.toString());
                             }))
                     .command(
                         manager.commandBuilder("packs")
-                            .literal("reload", ArgumentDescription.of("Reload config packs"))
+                            .literal("reload", Description.of("Reload config packs"))
                             .permission("terra.packs.reload")
                             .handler(context -> {
-                                context.getSender().sendMessage("Reloading Terra...");
+                                context.sender().sendMessage("Reloading Terra...");
                                 logger.info("Reloading Terra...");
                                 if(platform.reload()) {
                                     logger.info("Terra reloaded successfully.");
-                                    context.getSender().sendMessage("Terra reloaded successfully.");
+                                    context.sender().sendMessage("Terra reloaded successfully.");
                                 } else {
                                     logger.error("Terra failed to reload.");
-                                    context.getSender().sendMessage(
+                                    context.sender().sendMessage(
                                         "Terra failed to reload. See logs for more information.");
                                 }
                             }));

common/addons/command-profiler/src/main/java/com/dfsek/terra/addons/commands/profiler/ProfilerCommandAddon.java

@@ -1,7 +1,7 @@
 package com.dfsek.terra.addons.commands.profiler;
 
-import cloud.commandframework.ArgumentDescription;
-import cloud.commandframework.CommandManager;
+import org.incendo.cloud.CommandManager;
+import org.incendo.cloud.description.Description;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -33,24 +33,24 @@ public class ProfilerCommandAddon implements AddonInitializer {
                 CommandManager<CommandSender> manager = event.getCommandManager();
                 manager
                     .command(
-                        manager.commandBuilder("profiler", ArgumentDescription.of("Access the profiler"))
-                            .literal("start", ArgumentDescription.of("Start profiling"), "st")
+                        manager.commandBuilder("profiler", Description.of("Access the profiler"))
+                            .literal("start", Description.of("Start profiling"), "st")
                             .permission("terra.profiler.start")
                             .handler(context -> {
                                 platform.getProfiler().start();
-                                context.getSender().sendMessage("Profiling started.");
+                                context.sender().sendMessage("Profiling started.");
                             }))
                     .command(
-                        manager.commandBuilder("profiler", ArgumentDescription.of("Access the profiler"))
-                            .literal("stop", ArgumentDescription.of("Stop profiling"), "s")
+                        manager.commandBuilder("profiler", Description.of("Access the profiler"))
+                            .literal("stop", Description.of("Stop profiling"), "s")
                             .permission("terra.profiler.stop")
                             .handler(context -> {
                                 platform.getProfiler().stop();
-                                context.getSender().sendMessage("Profiling stopped.");
+                                context.sender().sendMessage("Profiling stopped.");
                             }))
                     .command(
-                        manager.commandBuilder("profiler", ArgumentDescription.of("Access the profiler"))
-                            .literal("query", ArgumentDescription.of("Query profiler results"), "q")
+                        manager.commandBuilder("profiler", Description.of("Access the profiler"))
+                            .literal("query", Description.of("Query profiler results"), "q")
                             .permission("terra.profiler.query")
                             .handler(context -> {
                                 StringBuilder data = new StringBuilder("Terra Profiler data: \n");
@@ -59,15 +59,15 @@ public class ProfilerCommandAddon implements AddonInitializer {
                                     .append(timings.toString())
                                     .append('\n'));
                                 logger.info(data.toString());
-                                context.getSender().sendMessage("Profiling data dumped to console.");
+                                context.sender().sendMessage("Profiling data dumped to console.");
                             }))
                     .command(
-                        manager.commandBuilder("profiler", ArgumentDescription.of("Access the profiler"))
-                            .literal("reset", ArgumentDescription.of("Reset the profiler"), "r")
+                        manager.commandBuilder("profiler", Description.of("Access the profiler"))
+                            .literal("reset", Description.of("Reset the profiler"), "r")
                             .permission("terra.profiler.reset")
                             .handler(context -> {
                                 platform.getProfiler().reset();
-                                context.getSender().sendMessage("Profiler reset.");
+                                context.sender().sendMessage("Profiler reset.");
                             }));
             });
     }

common/addons/command-structures/src/main/java/com/dfsek/terra/addons/commands/structure/StructureCommandAddon.java

@@ -1,10 +1,11 @@
 package com.dfsek.terra.addons.commands.structure;
 
-import cloud.commandframework.ArgumentDescription;
-import cloud.commandframework.CommandManager;
-import cloud.commandframework.arguments.standard.EnumArgument;
-import cloud.commandframework.arguments.standard.LongArgument;
-import cloud.commandframework.context.CommandContext;
+import org.incendo.cloud.CommandManager;
+import org.incendo.cloud.component.DefaultValue;
+import org.incendo.cloud.context.CommandContext;
+import org.incendo.cloud.description.Description;
+import org.incendo.cloud.parser.standard.EnumParser;
+import org.incendo.cloud.parser.standard.LongParser;
 
 import java.util.Random;
 
@@ -31,7 +32,7 @@ public class StructureCommandAddon implements AddonInitializer {
     private BaseAddon addon;
 
     private static Registry<Structure> getStructureRegistry(CommandContext<CommandSender> sender) {
-        return sender.getSender().getEntity().orElseThrow().world().getPack().getRegistry(Structure.class);
+        return sender.sender().getEntity().orElseThrow().world().getPack().getRegistry(Structure.class);
     }
 
     @Override
@@ -43,16 +44,16 @@ public class StructureCommandAddon implements AddonInitializer {
                 CommandManager<CommandSender> manager = event.getCommandManager();
 
                 manager.command(
-                    manager.commandBuilder("structures", ArgumentDescription.of("Manage or generate structures"))
+                    manager.commandBuilder("structures", Description.of("Manage or generate structures"))
                         .literal("generate")
-                        .argument(RegistryArgument.builder("structure",
+                        .optional(RegistryArgument.builder("structure",
                             StructureCommandAddon::getStructureRegistry,
                             TypeKey.of(Structure.class)))
-                        .argument(LongArgument.optional("seed", 0))
-                        .argument(EnumArgument.optional(Rotation.class, "rotation", Rotation.NONE))
+                        .optional("seed", LongParser.longParser(), DefaultValue.constant(0L))
+                        .optional("rotation", EnumParser.enumParser(Rotation.class), DefaultValue.constant(Rotation.NONE))
                         .handler(context -> {
                             Structure structure = context.get("structure");
-                            Entity sender = context.getSender().getEntity().orElseThrow();
+                            Entity sender = context.sender().getEntity().orElseThrow();
                             structure.generate(
                                 sender.position().toInt(),
                                 sender.world(),

common/addons/config-biome/src/main/java/com/dfsek/terra/addons/biome/holder/PaletteHolderBuilder.java

@@ -7,11 +7,11 @@
 
 package com.dfsek.terra.addons.biome.holder;
 
+import com.dfsek.terra.api.world.chunk.generation.util.Palette;
+
 import java.util.Map;
 import java.util.TreeMap;
 
-import com.dfsek.terra.api.world.chunk.generation.util.Palette;
-
 
 public class PaletteHolderBuilder {
     private final TreeMap<Integer, Palette> paletteMap = new TreeMap<>();

common/addons/config-distributors/src/main/java/com/dfsek/terra/addons/feature/distributor/distributors/PointSetDistributor.java

@@ -7,11 +7,11 @@
 
 package com.dfsek.terra.addons.feature.distributor.distributors;
 
-import java.util.Set;
-
 import com.dfsek.terra.addons.feature.distributor.util.Point;
 import com.dfsek.terra.api.structure.feature.Distributor;
 
+import java.util.Set;
+
 
 public class PointSetDistributor implements Distributor {
     private final Set<Point> points;

common/addons/config-noise-function/build.gradle.kts

@@ -1,4 +1,4 @@
-version = version("1.1.0")
+version = version("1.2.0")
 
 dependencies {
     compileOnlyApi(project(":common:addons:manifest-addon-loader"))

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/NoiseAddon.java

@@ -17,6 +17,8 @@ import com.dfsek.terra.addons.manifest.api.AddonInitializer;
 import com.dfsek.terra.addons.noise.config.CubicSplinePointTemplate;
 import com.dfsek.terra.addons.noise.config.DimensionApplicableNoiseSampler;
 import com.dfsek.terra.addons.noise.config.templates.BinaryArithmeticTemplate;
+import com.dfsek.terra.addons.noise.config.templates.CacheSamplerTemplate;
+import com.dfsek.terra.addons.noise.config.templates.DerivativeNoiseSamplerTemplate;
 import com.dfsek.terra.addons.noise.config.templates.DomainWarpTemplate;
 import com.dfsek.terra.addons.noise.config.templates.FunctionTemplate;
 import com.dfsek.terra.addons.noise.config.templates.ImageSamplerTemplate;
@@ -28,6 +30,7 @@ import com.dfsek.terra.addons.noise.config.templates.noise.ConstantNoiseTemplate
 import com.dfsek.terra.addons.noise.config.templates.noise.DistanceSamplerTemplate;
 import com.dfsek.terra.addons.noise.config.templates.noise.ExpressionFunctionTemplate;
 import com.dfsek.terra.addons.noise.config.templates.noise.GaborNoiseTemplate;
+import com.dfsek.terra.addons.noise.config.templates.noise.PseudoErosionTemplate;
 import com.dfsek.terra.addons.noise.config.templates.noise.SimpleNoiseTemplate;
 import com.dfsek.terra.addons.noise.config.templates.noise.fractal.BrownianMotionTemplate;
 import com.dfsek.terra.addons.noise.config.templates.noise.fractal.PingPongTemplate;
@@ -35,6 +38,7 @@ import com.dfsek.terra.addons.noise.config.templates.noise.fractal.RidgedFractal
 import com.dfsek.terra.addons.noise.config.templates.normalizer.ClampNormalizerTemplate;
 import com.dfsek.terra.addons.noise.config.templates.normalizer.CubicSplineNormalizerTemplate;
 import com.dfsek.terra.addons.noise.config.templates.normalizer.ExpressionNormalizerTemplate;
+import com.dfsek.terra.addons.noise.config.templates.normalizer.LinearMapNormalizerTemplate;
 import com.dfsek.terra.addons.noise.config.templates.normalizer.LinearNormalizerTemplate;
 import com.dfsek.terra.addons.noise.config.templates.normalizer.NormalNormalizerTemplate;
 import com.dfsek.terra.addons.noise.config.templates.normalizer.PosterizationNormalizerTemplate;
@@ -63,6 +67,7 @@ import com.dfsek.terra.api.addon.BaseAddon;
 import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
 import com.dfsek.terra.api.event.functional.FunctionalEventHandler;
 import com.dfsek.terra.api.inject.annotations.Inject;
+import com.dfsek.terra.api.noise.DerivativeNoiseSampler;
 import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.registry.CheckedRegistry;
 import com.dfsek.terra.api.util.reflection.TypeKey;
@@ -94,9 +99,11 @@ public class NoiseAddon implements AddonInitializer {
                         (type, o, loader, depthTracker) -> DistanceSampler.DistanceFunction.valueOf((String) o))
                     .applyLoader(DimensionApplicableNoiseSampler.class, DimensionApplicableNoiseSampler::new)
                     .applyLoader(FunctionTemplate.class, FunctionTemplate::new)
-                    .applyLoader(CubicSpline.Point.class, CubicSplinePointTemplate::new);
+                    .applyLoader(CubicSpline.Point.class, CubicSplinePointTemplate::new)
+                    .applyLoader(DerivativeNoiseSampler.class, DerivativeNoiseSamplerTemplate::new);
 
                 noiseRegistry.register(addon.key("LINEAR"), LinearNormalizerTemplate::new);
+                noiseRegistry.register(addon.key("LINEAR_MAP"), LinearMapNormalizerTemplate::new);
                 noiseRegistry.register(addon.key("NORMAL"), NormalNormalizerTemplate::new);
                 noiseRegistry.register(addon.key("CLAMP"), ClampNormalizerTemplate::new);
                 noiseRegistry.register(addon.key("PROBABILITY"), ProbabilityNormalizerTemplate::new);
@@ -117,7 +124,7 @@ public class NoiseAddon implements AddonInitializer {
                 noiseRegistry.register(addon.key("PERLIN"), () -> new SimpleNoiseTemplate(PerlinSampler::new));
                 noiseRegistry.register(addon.key("SIMPLEX"), () -> new SimpleNoiseTemplate(SimplexSampler::new));
                 noiseRegistry.register(addon.key("GABOR"), GaborNoiseTemplate::new);
-
+                noiseRegistry.register(addon.key("PSEUDOEROSION"), PseudoErosionTemplate::new);
 
                 noiseRegistry.register(addon.key("VALUE"), () -> new SimpleNoiseTemplate(ValueSampler::new));
                 noiseRegistry.register(addon.key("VALUE_CUBIC"), () -> new SimpleNoiseTemplate(ValueCubicSampler::new));
@@ -144,6 +151,8 @@ public class NoiseAddon implements AddonInitializer {
                 noiseRegistry.register(addon.key("MAX"), () -> new BinaryArithmeticTemplate<>(MaxSampler::new));
                 noiseRegistry.register(addon.key("MIN"), () -> new BinaryArithmeticTemplate<>(MinSampler::new));
 
+                noiseRegistry.register(addon.key("CACHE"), () -> new CacheSamplerTemplate(plugin.getGenerationThreads()));
+
 
                 Map<String, DimensionApplicableNoiseSampler> packSamplers = new LinkedHashMap<>();
                 Map<String, FunctionTemplate> packFunctions = new LinkedHashMap<>();

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/NoiseConfigPackTemplate.java

@@ -11,14 +11,14 @@ import com.dfsek.tectonic.api.config.template.ConfigTemplate;
 import com.dfsek.tectonic.api.config.template.annotations.Default;
 import com.dfsek.tectonic.api.config.template.annotations.Value;
 
-import java.util.LinkedHashMap;
-import java.util.Map;
-
 import com.dfsek.terra.addons.noise.config.DimensionApplicableNoiseSampler;
 import com.dfsek.terra.addons.noise.config.templates.FunctionTemplate;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.api.properties.Properties;
 
+import java.util.LinkedHashMap;
+import java.util.Map;
+
 
 @SuppressWarnings("FieldMayBeFinal")
 public class NoiseConfigPackTemplate implements ConfigTemplate, Properties {

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/config/templates/CacheSamplerTemplate.java

@@ -0,0 +1,26 @@
+package com.dfsek.terra.addons.noise.config.templates;
+
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.noise.samplers.CacheSampler;
+import com.dfsek.terra.addons.noise.samplers.LinearHeightmapSampler;
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class CacheSamplerTemplate extends SamplerTemplate<LinearHeightmapSampler> {
+    @Value("sampler")
+    @Default
+    private NoiseSampler sampler;
+
+    private final int generationThreads;
+
+    public CacheSamplerTemplate(int generationThreads) {
+        this.generationThreads = generationThreads;
+    }
+
+    @Override
+    public NoiseSampler get() {
+        return new CacheSampler(sampler, getDimensions(), generationThreads);
+    }
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/config/templates/DerivativeNoiseSamplerTemplate.java

@@ -0,0 +1,26 @@
+package com.dfsek.terra.addons.noise.config.templates;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.exception.ValidationException;
+
+import com.dfsek.terra.api.noise.DerivativeNoiseSampler;
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class DerivativeNoiseSamplerTemplate extends SamplerTemplate<DerivativeNoiseSampler> {
+
+    @Value(".")
+    private NoiseSampler sampler;
+
+    @Override
+    public boolean validate() throws ValidationException {
+        if(!DerivativeNoiseSampler.isDifferentiable(sampler)) throw new ValidationException(
+            "Provided sampler does not support calculating a derivative");
+        return super.validate();
+    }
+
+    @Override
+    public DerivativeNoiseSampler get() {
+        return (DerivativeNoiseSampler) sampler;
+    }
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/config/templates/noise/CellularNoiseTemplate.java

@@ -34,7 +34,11 @@ public class CellularNoiseTemplate extends NoiseTemplate<CellularSampler> {
     @Value("lookup")
     @Default
     private @Meta NoiseSampler lookup = new OpenSimplex2Sampler();
-
+    
+    @Value("salt-lookup")
+    @Default
+    private @Meta boolean saltLookup = true;
+    
     @Override
     public NoiseSampler get() {
         CellularSampler sampler = new CellularSampler();
@@ -44,6 +48,7 @@ public class CellularNoiseTemplate extends NoiseTemplate<CellularSampler> {
         sampler.setReturnType(cellularReturnType);
         sampler.setDistanceFunction(cellularDistanceFunction);
         sampler.setSalt(salt);
+        sampler.setSaltLookup(saltLookup);
         return sampler;
     }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/config/templates/noise/DerivativeNoiseTemplate.java

@@ -0,0 +1,8 @@
+package com.dfsek.terra.addons.noise.config.templates.noise;
+
+import com.dfsek.terra.addons.noise.samplers.noise.DerivativeNoiseFunction;
+
+
+public abstract class DerivativeNoiseTemplate<T extends DerivativeNoiseFunction> extends NoiseTemplate<T> {
+
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/config/templates/noise/PseudoErosionTemplate.java

@@ -0,0 +1,79 @@
+package com.dfsek.terra.addons.noise.config.templates.noise;
+
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.noise.samplers.noise.PseudoErosionSampler;
+import com.dfsek.terra.addons.noise.samplers.noise.simplex.OpenSimplex2Sampler;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.noise.DerivativeNoiseSampler;
+
+
+public class PseudoErosionTemplate extends NoiseTemplate<PseudoErosionSampler> {
+    @Value("frequency")
+    @Default
+    protected @Meta double frequency = 1d;
+
+    @Value("octaves")
+    @Default
+    private int octaves = 4;
+
+    @Value("lacunarity")
+    @Default
+    private double lacunarity = 2.0;
+
+    @Value("gain")
+    @Default
+    private double gain = 0.5;
+
+    @Value("slope-strength")
+    @Default
+    private double slopeStrength = 1.0;
+
+
+    @Value("branch-strength")
+    @Default
+    private double branchStrength = 1.0;
+
+    @Value("strength")
+    @Default
+    private double strength = 0.04;
+
+    @Value("erosion-frequency")
+    @Default
+    private double erosionFrequency = 0.02;
+
+    @Value("sampler")
+    @Default
+    private DerivativeNoiseSampler heightSampler = new OpenSimplex2Sampler();
+
+    @Value("slope-mask.enable")
+    @Default
+    private boolean slopeMask = true;
+
+    @Value("slope-mask.none")
+    @Default
+    private double slopeMaskNone = -0.5;
+
+    @Value("slope-mask.full")
+    @Default
+    private double slopeMaskFull = 1;
+
+    @Value("jitter")
+    @Default
+    private double jitterModifier = 1;
+
+    @Value("average-impulses")
+    @Default
+    private boolean averageErosionImpulses = true;
+
+    @Override
+    public PseudoErosionSampler get() {
+        PseudoErosionSampler pseudoErosion = new PseudoErosionSampler(octaves, gain, lacunarity,
+            slopeStrength, branchStrength, strength,
+            erosionFrequency, heightSampler, slopeMask, slopeMaskFull, slopeMaskNone, jitterModifier, averageErosionImpulses);
+        pseudoErosion.setFrequency(frequency);
+        pseudoErosion.setSalt(salt);
+        return pseudoErosion;
+    }
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/config/templates/normalizer/LinearMapNormalizerTemplate.java

@@ -0,0 +1,31 @@
+package com.dfsek.terra.addons.noise.config.templates.normalizer;
+
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.noise.normalizer.LinearMapNormalizer;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class LinearMapNormalizerTemplate extends NormalizerTemplate<LinearMapNormalizer> {
+    
+    @Value("from.a")
+    @Default
+    private @Meta double aFrom = -1;
+    
+    @Value("from.b")
+    @Default
+    private @Meta double bFrom = 1;
+    
+    @Value("to.a")
+    private @Meta double aTo;
+    
+    @Value("to.b")
+    private @Meta double bTo;
+    
+    @Override
+    public NoiseSampler get() {
+        return new LinearMapNormalizer(function, aFrom, aTo, bFrom, bTo);
+    }
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/normalizer/LinearMapNormalizer.java

@@ -0,0 +1,28 @@
+package com.dfsek.terra.addons.noise.normalizer;
+
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class LinearMapNormalizer extends Normalizer {
+    
+    private final double aFrom;
+    
+    private final double aTo;
+    
+    private final double bFrom;
+    
+    private final double bTo;
+    
+    public LinearMapNormalizer(NoiseSampler sampler, double aFrom, double aTo, double bFrom, double bTo) {
+        super(sampler);
+        this.aFrom = aFrom;
+        this.aTo = aTo;
+        this.bFrom = bFrom;
+        this.bTo = bTo;
+    }
+    
+    @Override
+    public double normalize(double in) {
+        return (in - aFrom) * (aTo - bTo) / (aFrom - bFrom) + aTo;
+    }
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/paralithic/FunctionUtil.java

@@ -11,6 +11,8 @@ import com.dfsek.terra.addons.noise.config.templates.FunctionTemplate;
 import com.dfsek.terra.addons.noise.paralithic.defined.UserDefinedFunction;
 import com.dfsek.terra.addons.noise.paralithic.noise.NoiseFunction2;
 import com.dfsek.terra.addons.noise.paralithic.noise.NoiseFunction3;
+import com.dfsek.terra.addons.noise.paralithic.noise.SaltedNoiseFunction2;
+import com.dfsek.terra.addons.noise.paralithic.noise.SaltedNoiseFunction3;
 
 
 public class FunctionUtil {
@@ -23,10 +25,15 @@ public class FunctionUtil {
         for(Map.Entry<String, FunctionTemplate> entry : functions.entrySet()) {
             functionMap.put(entry.getKey(), UserDefinedFunction.newInstance(entry.getValue()));
         }
-        samplers.forEach((id, sampler) -> functionMap.put(id,
-            sampler.getDimensions() == 2 ?
-            new NoiseFunction2(sampler.getSampler()) :
-            new NoiseFunction3(sampler.getSampler())));
+        samplers.forEach((id, sampler) -> {
+            if(sampler.getDimensions() == 2) {
+                functionMap.put(id, new NoiseFunction2(sampler.getSampler()));
+                functionMap.put(id + "Salted", new SaltedNoiseFunction2(sampler.getSampler()));
+            } else {
+                functionMap.put(id, new NoiseFunction3(sampler.getSampler()));
+                functionMap.put(id + "Salted", new SaltedNoiseFunction3(sampler.getSampler()));
+            }
+        });
         return functionMap;
     }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/paralithic/noise/SaltedNoiseFunction2.java

@@ -0,0 +1,37 @@
+package com.dfsek.terra.addons.noise.paralithic.noise;
+
+import com.dfsek.paralithic.functions.dynamic.Context;
+import com.dfsek.paralithic.functions.dynamic.DynamicFunction;
+import com.dfsek.paralithic.node.Statefulness;
+import org.jetbrains.annotations.NotNull;
+
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class SaltedNoiseFunction2 implements DynamicFunction {
+    private final NoiseSampler gen;
+
+    public SaltedNoiseFunction2(NoiseSampler gen) {
+        this.gen = gen;
+    }
+
+    @Override
+    public double eval(double... args) {
+        throw new UnsupportedOperationException("Cannot evaluate seeded function without seed context.");
+    }
+
+    @Override
+    public double eval(Context context, double... args) {
+        return gen.noise(((SeedContext) context).getSeed() + (long) args[2], args[0], args[1]);
+    }
+
+    @Override
+    public int getArgNumber() {
+        return 3;
+    }
+
+    @Override
+    public @NotNull Statefulness statefulness() {
+        return Statefulness.CONTEXTUAL;
+    }
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/paralithic/noise/SaltedNoiseFunction3.java

@@ -0,0 +1,37 @@
+package com.dfsek.terra.addons.noise.paralithic.noise;
+
+import com.dfsek.paralithic.functions.dynamic.Context;
+import com.dfsek.paralithic.functions.dynamic.DynamicFunction;
+import com.dfsek.paralithic.node.Statefulness;
+import org.jetbrains.annotations.NotNull;
+
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class SaltedNoiseFunction3 implements DynamicFunction {
+    private final NoiseSampler gen;
+
+    public SaltedNoiseFunction3(NoiseSampler gen) {
+        this.gen = gen;
+    }
+
+    @Override
+    public double eval(double... args) {
+        throw new UnsupportedOperationException("Cannot evaluate seeded function without seed context.");
+    }
+
+    @Override
+    public double eval(Context context, double... args) {
+        return gen.noise(((SeedContext) context).getSeed() + (long) args[3], args[0], args[1], args[2]);
+    }
+
+    @Override
+    public int getArgNumber() {
+        return 4;
+    }
+
+    @Override
+    public @NotNull Statefulness statefulness() {
+        return Statefulness.CONTEXTUAL;
+    }
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/CacheSampler.java

@@ -0,0 +1,125 @@
+package com.dfsek.terra.addons.noise.samplers;
+
+import com.dfsek.terra.api.noise.DerivativeNoiseSampler;
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+import com.github.benmanes.caffeine.cache.Caffeine;
+import com.github.benmanes.caffeine.cache.LoadingCache;
+
+
+public class CacheSampler implements DerivativeNoiseSampler {
+
+    private final NoiseSampler sampler;
+    private final LoadingCache<DoubleSeededVector2, Double> cache2D;
+    private final LoadingCache<DoubleSeededVector3, Double> cache3D;
+    private final LoadingCache<DoubleSeededVector2, double[]> cache2DDirv;
+    private final LoadingCache<DoubleSeededVector3, double[]> cache3DDirv;
+
+    public CacheSampler(NoiseSampler sampler, int dimensions, int generationThreads) {
+        this.sampler = sampler;
+        if (dimensions == 2) {
+            this.cache2D = Caffeine
+                .newBuilder()
+                .initialCapacity(0)
+                .maximumSize(256L * generationThreads) // 1 full chunk (high res)
+                .build(vec -> sampler.noise(vec.seed, vec.x, vec.z));
+            cache3D = null;
+            cache3DDirv = null;
+            if (DerivativeNoiseSampler.isDifferentiable(sampler)) {
+                this.cache2DDirv = Caffeine
+                    .newBuilder()
+                    .initialCapacity(0)
+                    .maximumSize(256L * generationThreads) // 1 full chunk (high res)
+                    .build(vec -> ((DerivativeNoiseSampler) sampler).noised(vec.seed, vec.x, vec.z));
+            } else  {
+                cache2DDirv = null;
+            }
+        } else {
+            this.cache3D = Caffeine
+                .newBuilder()
+                .initialCapacity(0)
+                .maximumSize(256L * generationThreads) // 1 full chunk (high res)
+                .build(vec -> sampler.noise(vec.seed, vec.x, vec.y, vec.z));
+            cache2D = null;
+            cache2DDirv = null;
+            if (DerivativeNoiseSampler.isDifferentiable(sampler)) {
+                this.cache3DDirv = Caffeine
+                    .newBuilder()
+                    .initialCapacity(0)
+                    .maximumSize(256L * generationThreads) // 1 full chunk (high res)
+                    .build(vec -> ((DerivativeNoiseSampler) sampler).noised(vec.seed, vec.x, vec.y, vec.z));
+            } else {
+                cache3DDirv = null;
+            }
+        }
+    }
+
+    @Override
+    public boolean isDifferentiable() {
+        return DerivativeNoiseSampler.isDifferentiable(sampler);
+    }
+
+    @Override
+    public double[] noised(long seed, double x, double y) {
+        return cache2DDirv.get(new DoubleSeededVector2(x, y, seed));
+    }
+
+    @Override
+    public double[] noised(long seed, double x, double y, double z) {
+        return cache3DDirv.get(new DoubleSeededVector3(x, y, z, seed));
+    }
+
+    @Override
+    public double noise(long seed, double x, double y) {
+        DoubleSeededVector2 vec = new DoubleSeededVector2(x, y, seed);
+        if (cache2DDirv != null && cache2DDirv.estimatedSize() != 0) {
+            return cache2DDirv.get(vec)[0];
+        }
+        return cache2D.get(vec);
+    }
+
+    @Override
+    public double noise(long seed, double x, double y, double z) {
+        DoubleSeededVector3 vec = new DoubleSeededVector3(x, y, z, seed);
+        if (cache3DDirv != null && cache3DDirv.estimatedSize() != 0) {
+            return cache3DDirv.get(vec)[0];
+        }
+        return cache3D.get(vec);
+    }
+
+    private record DoubleSeededVector3(double x, double y, double z, long seed) {
+        @Override
+        public boolean equals(Object obj) {
+            if(obj instanceof DoubleSeededVector3 that) {
+                return this.y == that.y && this.z == that.z && this.x == that.x && this.seed == that.seed;
+            }
+            return false;
+        }
+
+        @Override
+        public int hashCode() {
+            int code = (int) Double.doubleToLongBits(x);
+            code = 31 * code + (int) Double.doubleToLongBits(y);
+            code = 31 * code + (int) Double.doubleToLongBits(z);
+            return 31 * code + (Long.hashCode(seed));
+        }
+    }
+
+
+    private record DoubleSeededVector2(double x, double z, long seed) {
+        @Override
+        public boolean equals(Object obj) {
+            if(obj instanceof DoubleSeededVector2 that) {
+                return this.z == that.z && this.x == that.x && this.seed == that.seed;
+            }
+            return false;
+        }
+
+        @Override
+        public int hashCode() {
+            int code = (int) Double.doubleToLongBits(x);
+            code = 31 * code + (int) Double.doubleToLongBits(z);
+            return 31 * code + (Long.hashCode(seed));
+        }
+    }
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/arithmetic/AdditionSampler.java

@@ -12,4 +12,14 @@ public class AdditionSampler extends BinaryArithmeticSampler {
     public double operate(double left, double right) {
         return left + right;
     }
+
+    @Override
+    public double[] operateDerivative(double[] left, double[] right) {
+        int dimensions = left.length;
+        double[] out = new double[dimensions];
+        for(int i = 0; i < dimensions; i++) {
+            out[i] = left[i] + right[i];
+        }
+        return out;
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/arithmetic/BinaryArithmeticSampler.java

@@ -1,9 +1,10 @@
 package com.dfsek.terra.addons.noise.samplers.arithmetic;
 
+import com.dfsek.terra.api.noise.DerivativeNoiseSampler;
 import com.dfsek.terra.api.noise.NoiseSampler;
 
 
-public abstract class BinaryArithmeticSampler implements NoiseSampler {
+public abstract class BinaryArithmeticSampler implements DerivativeNoiseSampler {
     private final NoiseSampler left;
     private final NoiseSampler right;
 
@@ -12,6 +13,11 @@ public abstract class BinaryArithmeticSampler implements NoiseSampler {
         this.right = right;
     }
 
+    @Override
+    public boolean isDifferentiable() {
+        return DerivativeNoiseSampler.isDifferentiable(left) && DerivativeNoiseSampler.isDifferentiable(right);
+    }
+
     @Override
     public double noise(long seed, double x, double y) {
         return operate(left.noise(seed, x, y), right.noise(seed, x, y));
@@ -22,5 +28,17 @@ public abstract class BinaryArithmeticSampler implements NoiseSampler {
         return operate(left.noise(seed, x, y, z), right.noise(seed, x, y, z));
     }
 
+    @Override
+    public double[] noised(long seed, double x, double y) {
+        return operateDerivative(((DerivativeNoiseSampler)left).noised(seed, x, y), ((DerivativeNoiseSampler)right).noised(seed, x, y));
+    }
+
+    @Override
+    public double[] noised(long seed, double x, double y, double z) {
+        return operateDerivative(((DerivativeNoiseSampler)left).noised(seed, x, y, z), ((DerivativeNoiseSampler)right).noised(seed, x, y, z));
+    }
+
     public abstract double operate(double left, double right);
+
+    public abstract double[] operateDerivative(double[] left, double[] right);
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/arithmetic/DivisionSampler.java

@@ -12,4 +12,15 @@ public class DivisionSampler extends BinaryArithmeticSampler {
     public double operate(double left, double right) {
         return left / right;
     }
+
+    @Override
+    public double[] operateDerivative(double[] left, double[] right) {
+        int dimensions = left.length;
+        double[] out = new double[dimensions];
+        out[0] = left[0] / right[0];
+        for(int i = 1; i < dimensions; i++) {
+            out[i] = (left[i] * right[0] - left[0] * right[i]) / (right[0] * right[0]);
+        }
+        return out;
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/arithmetic/MaxSampler.java

@@ -12,4 +12,11 @@ public class MaxSampler extends BinaryArithmeticSampler {
     public double operate(double left, double right) {
         return Math.max(left, right);
     }
+
+    @Override
+    public double[] operateDerivative(double[] left, double[] right) {
+        double leftValue = left[0];
+        double rightValue = right[0];
+        return leftValue > rightValue ? left : right;
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/arithmetic/MinSampler.java

@@ -12,4 +12,11 @@ public class MinSampler extends BinaryArithmeticSampler {
     public double operate(double left, double right) {
         return Math.min(left, right);
     }
+
+    @Override
+    public double[] operateDerivative(double[] left, double[] right) {
+        double leftValue = left[0];
+        double rightValue = right[0];
+        return leftValue < rightValue ? left : right;
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/arithmetic/MultiplicationSampler.java

@@ -12,4 +12,15 @@ public class MultiplicationSampler extends BinaryArithmeticSampler {
     public double operate(double left, double right) {
         return left * right;
     }
+
+    @Override
+    public double[] operateDerivative(double[] left, double[] right) {
+        int dimensions = left.length;
+        double[] out = new double[dimensions];
+        out[0] = left[0] * right[0];
+        for(int i = 1; i < dimensions; i++) {
+            out[i] = left[i] * right[0] + left[0] * right[i];
+        }
+        return out;
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/arithmetic/SubtractionSampler.java

@@ -12,4 +12,14 @@ public class SubtractionSampler extends BinaryArithmeticSampler {
     public double operate(double left, double right) {
         return left - right;
     }
+
+    @Override
+    public double[] operateDerivative(double[] left, double[] right) {
+        int dimensions = left.length;
+        double[] out = new double[dimensions];
+        for(int i = 0; i < dimensions; i++) {
+            out[i] = left[i] - right[i];
+        }
+        return out;
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/CellularSampler.java

@@ -197,7 +197,9 @@ public class CellularSampler extends NoiseFunction {
     private double jitterModifier = 1.0;
 
     private NoiseSampler noiseLookup;
-
+    
+    private boolean saltLookup;
+    
     public CellularSampler() {
         noiseLookup = new OpenSimplex2Sampler();
     }
@@ -217,7 +219,11 @@ public class CellularSampler extends NoiseFunction {
     public void setReturnType(ReturnType returnType) {
         this.returnType = returnType;
     }
-
+    
+    public void setSaltLookup(boolean saltLookup) {
+        this.saltLookup = saltLookup;
+    }
+    
     @Override
     public double getNoiseRaw(long sl, double x, double y) {
         int seed = (int) sl;
@@ -286,8 +292,8 @@ public class CellularSampler extends NoiseFunction {
             case Distance2Sub -> distance1 - distance0 - 1;
             case Distance2Mul -> distance1 * distance0 * 0.5 - 1;
             case Distance2Div -> distance0 / distance1 - 1;
-            case NoiseLookup -> noiseLookup.noise(sl, centerX, centerY);
-            case LocalNoiseLookup -> noiseLookup.noise(sl, x / frequency - centerX, y / frequency - centerY);
+            case NoiseLookup -> noiseLookup.noise(sl - (saltLookup ? 0 : salt), centerX, centerY);
+            case LocalNoiseLookup -> noiseLookup.noise(sl - (saltLookup ? 0 : salt), x / frequency - centerX, y / frequency - centerY);
             case Distance3 -> distance2 - 1;
             case Distance3Add -> (distance2 + distance0) * 0.5 - 1;
             case Distance3Sub -> distance2 - distance0 - 1;
@@ -377,8 +383,8 @@ public class CellularSampler extends NoiseFunction {
             case Distance2Sub -> distance1 - distance0 - 1;
             case Distance2Mul -> distance1 * distance0 * 0.5 - 1;
             case Distance2Div -> distance0 / distance1 - 1;
-            case NoiseLookup -> noiseLookup.noise(sl, centerX, centerY, centerZ);
-            case LocalNoiseLookup -> noiseLookup.noise(sl, x / frequency - centerX, y / frequency - centerY, z / frequency - centerZ);
+            case NoiseLookup -> noiseLookup.noise(sl - (saltLookup ? 0 : salt), centerX, centerY, centerZ);
+            case LocalNoiseLookup -> noiseLookup.noise(sl - (saltLookup ? 0 : salt), x / frequency - centerX, y / frequency - centerY, z / frequency - centerZ);
             case Distance3 -> distance2 - 1;
             case Distance3Add -> (distance2 + distance0) * 0.5 - 1;
             case Distance3Sub -> distance2 - distance0 - 1;

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/DerivativeNoiseFunction.java

@@ -0,0 +1,25 @@
+package com.dfsek.terra.addons.noise.samplers.noise;
+
+import com.dfsek.terra.api.noise.DerivativeNoiseSampler;
+
+
+public abstract class DerivativeNoiseFunction extends NoiseFunction implements DerivativeNoiseSampler {
+    @Override
+    public boolean isDifferentiable() {
+        return true;
+    }
+
+    @Override
+    public double[] noised(long seed, double x, double y) {
+        return getNoiseDerivativeRaw(seed + salt, x * frequency, y * frequency);
+    }
+
+    @Override
+    public double[] noised(long seed, double x, double y, double z) {
+        return getNoiseDerivativeRaw(seed + salt, x * frequency, y * frequency, z * frequency);
+    }
+
+    public abstract double[] getNoiseDerivativeRaw(long seed, double x, double y);
+
+    public abstract double[] getNoiseDerivativeRaw(long seed, double x, double y, double z);
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/PseudoErosionSampler.java

@@ -0,0 +1,173 @@
+package com.dfsek.terra.addons.noise.samplers.noise;
+
+
+import com.dfsek.terra.api.noise.DerivativeNoiseSampler;
+import com.dfsek.terra.api.util.MathUtil;
+
+
+public class PseudoErosionSampler extends NoiseFunction {
+    public static final double TAU = 2.0 * Math.PI;
+    private static final double HASH_X = 0.3183099f;
+    private static final double HASH_Y = 0.3678794f;
+    public final double gain;
+    public final double lacunarity;
+    public final double slopeStrength;
+    public final double branchStrength;
+    public final double erosionStrength;
+    private final int octaves;
+    private final double erosionFrequency;
+    private final DerivativeNoiseSampler sampler;
+    private final boolean slopeMask;
+    private final double slopeMaskFullSq;
+    private final double slopeMaskNoneSq;
+    private final double jitter;
+    private final double maxCellDistSq;
+    private final double maxCellDistSqRecip;
+    private final boolean averageErosionImpulses;
+
+    public PseudoErosionSampler(int octaves, double gain, double lacunarity, double slopeStrength, double branchStrength,
+                                double erosionStrength, double erosionFrequency, DerivativeNoiseSampler sampler,
+                                boolean slopeMask, double slopeMaskFull, double slopeMaskNone, double jitterModifier,
+                                boolean averageErosionImpulses) {
+        this.octaves = octaves;
+        this.gain = gain;
+        this.lacunarity = lacunarity;
+        this.slopeStrength = slopeStrength;
+        this.branchStrength = branchStrength;
+        this.erosionStrength = erosionStrength;
+        this.erosionFrequency = erosionFrequency;
+        this.sampler = sampler;
+        this.slopeMask = slopeMask;
+        // Square these values and maintain sign since they're compared to a
+        // squared value, otherwise a sqrt would need to be used
+        this.slopeMaskFullSq = slopeMaskFull * slopeMaskFull * Math.signum(slopeMaskFull);
+        this.slopeMaskNoneSq = slopeMaskNone * slopeMaskNone * Math.signum((slopeMaskNone));
+        this.jitter = 0.43701595 * jitterModifier;
+        this.averageErosionImpulses = averageErosionImpulses;
+        this.maxCellDistSq = 1 + jitter * jitter;
+        this.maxCellDistSqRecip = 1 / maxCellDistSq;
+    }
+
+    public static double hashX(double seed, double n) {
+        // Swapped the components here
+        double nx = HASH_X * n * seed;
+        return -1.0f + 2.0f * fract(nx);
+    }
+
+    public static double hashY(double seed, double n) {
+        double ny = HASH_Y * n * seed;
+        return -1.0f + 2.0f * fract(ny);
+    }
+
+    public static double fract(double x) {
+        return (x - Math.floor(x));
+    }
+
+    public static double smoothstep(double edge0, double edge1, double x) {
+        // Scale, bias and saturate x to 0..1 range
+        x = clamp((x - edge0) / (edge1 - edge0), 0.0f, 1.0f);
+        // Evaluate polynomial
+        return x * x * (3 - 2 * x);
+    }
+
+    public static double clamp(double x, double minVal, double maxVal) {
+        return Math.max(minVal, Math.min(maxVal, x));
+    }
+
+    public static double dot(double x1, double y1, double x2, double y2) {
+        return x1 * x2 + y1 * y2;
+    }
+
+    public double[] erosion(int seed, double x, double y, double dirX, double dirY) {
+        int gridX = (int) Math.round(x);
+        int gridY = (int) Math.round(y);
+        double noise = 0.0f;
+        double dirOutX = 0.0f;
+        double dirOutY = 0.0f;
+        double cumAmp = 0.0f;
+
+        for(int cellX = gridX - 1; cellX <= gridX + 1; cellX++) {
+            for(int cellY = gridY - 1; cellY <= gridY + 1; cellY++) {
+                double cellHash = hash(seed, cellX, cellY);
+                double cellOffsetX = hashX(seed, cellHash) * jitter;
+                double cellOffsetY = hashY(seed, cellHash) * jitter;
+                double cellOriginDeltaX = (x - cellX) + cellOffsetX;
+                double cellOriginDeltaY = (y - cellY) + cellOffsetY;
+                double cellOriginDistSq = cellOriginDeltaX * cellOriginDeltaX + cellOriginDeltaY * cellOriginDeltaY;
+                if(cellOriginDistSq > maxCellDistSq) continue; // Skip calculating cells too far away
+                double ampTmp = (cellOriginDistSq * maxCellDistSqRecip) - 1;
+                double amp = ampTmp * ampTmp; // Decrease cell amplitude further away
+                cumAmp += amp;
+                double directionalStrength = dot(cellOriginDeltaX, cellOriginDeltaY, dirX, dirY) * TAU;
+                noise += MathUtil.cos(directionalStrength) * amp;
+                double sinAngle = MathUtil.sin(directionalStrength) * amp;
+                dirOutX -= sinAngle * (cellOriginDeltaX + dirX);
+                dirOutY -= sinAngle * (cellOriginDeltaY + dirY);
+            }
+        }
+        if(averageErosionImpulses && cumAmp != 0) {
+            noise /= cumAmp;
+            dirOutX /= cumAmp;
+            dirOutY /= cumAmp;
+        }
+        return new double[]{ noise, dirOutX, dirOutY };
+    }
+
+    public double heightMap(long seed, double x, double y) {
+        double[] sample = sampler.noised(seed, x, y);
+        double height = sample[0];
+        double heightDirX = sample[1];
+        double heightDirY = sample[2];
+
+        // Take the curl of the normal to get the gradient facing down the slope
+        double baseDirX = heightDirY * slopeStrength;
+        double baseDirY = -heightDirX * slopeStrength;
+
+        double erosion = 0.0f;
+        double dirX = 0.0f;
+        double dirY = 0.0f;
+        double amp = 1.0f;
+        double cumAmp = 0.0f;
+        double freq = 1.0f;
+
+        // Stack erosion octaves
+        for(int i = 0; i < octaves; i++) {
+            double[] erosionResult = erosion((int) seed,
+                x * freq * erosionFrequency,
+                y * freq * erosionFrequency,
+                baseDirX + dirY * branchStrength,
+                baseDirY - dirX * branchStrength);
+            erosion += erosionResult[0] * amp;
+            dirX += erosionResult[1] * amp * freq;
+            dirY += erosionResult[2] * amp * freq;
+            cumAmp += amp;
+            amp *= gain;
+            freq *= lacunarity;
+        }
+
+        // Normalize erosion noise
+        erosion /= cumAmp;
+        // [-1, 1] -> [0, 1]
+        erosion = erosion * 0.5F + 0.5F;
+
+        // Without masking, erosion noise in areas with small gradients tend to produce mounds,
+        // this reduces erosion amplitude towards smaller gradients to avoid this
+        if(slopeMask) {
+            double dirMagSq = dot(baseDirX, baseDirY, baseDirX, baseDirY);
+            double flatness = smoothstep((double) slopeMaskNoneSq, slopeMaskFullSq, dirMagSq);
+            erosion *= flatness;
+        }
+
+        return height + erosion * erosionStrength;
+    }
+
+    @Override
+    public double getNoiseRaw(long seed, double x, double y) {
+        return heightMap(seed, x, y);
+    }
+
+    @Override
+    public double getNoiseRaw(long seed, double x, double y, double z) {
+        return getNoiseRaw(seed, x, z);
+    }
+}

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/fractal/BrownianMotionSampler.java

@@ -7,6 +7,7 @@
 
 package com.dfsek.terra.addons.noise.samplers.noise.fractal;
 
+import com.dfsek.terra.api.noise.DerivativeNoiseSampler;
 import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.util.MathUtil;
 
@@ -24,7 +25,7 @@ public class BrownianMotionSampler extends FractalNoiseFunction {
         for(int i = 0; i < octaves; i++) {
             double noise = input.noise(seed++, x, y);
             sum += noise * amp;
-            amp *= MathUtil.lerp(1.0, Math.min(noise + 1, 2) * 0.5, weightedStrength);
+            amp *= MathUtil.lerp(weightedStrength, 1.0, Math.min(noise + 1, 2) * 0.5);
 
             x *= lacunarity;
             y *= lacunarity;
@@ -42,7 +43,63 @@ public class BrownianMotionSampler extends FractalNoiseFunction {
         for(int i = 0; i < octaves; i++) {
             double noise = input.noise(seed++, x, y, z);
             sum += noise * amp;
-            amp *= MathUtil.lerp(1.0, (noise + 1) * 0.5, weightedStrength);
+            amp *= MathUtil.lerp(weightedStrength, 1.0, (noise + 1) * 0.5);
+
+            x *= lacunarity;
+            y *= lacunarity;
+            z *= lacunarity;
+            amp *= gain;
+        }
+
+        return sum;
+    }
+
+    @Override
+    public boolean isDifferentiable() {
+        return DerivativeNoiseSampler.isDifferentiable(input);
+    }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long seed, double x, double y) {
+        double[] sum = {0, 0, 0};
+        double amp = fractalBounding;
+
+        for(int i = 0; i < octaves; i++) {
+            // This should only be called after `input` is verified as a `DerivativeNoiseSampler`
+            // so this should be a safe cast
+            double[] noise = ((DerivativeNoiseSampler) input).noised(seed++, x, y);
+            sum[0] += noise[0] * amp;
+
+            // Directional derivative of each octave can be subject to the same addition and product
+            // as per derivative sum and product rules in order to produce the correct final derivative
+            sum[1] += noise[1] * amp;
+            sum[2] += noise[2] * amp;
+
+            amp *= MathUtil.lerp(weightedStrength, 1.0, Math.min(noise[0] + 1, 2) * 0.5);
+
+            x *= lacunarity;
+            y *= lacunarity;
+            amp *= gain;
+        }
+
+        return sum;
+    }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long seed, double x, double y, double z) {
+        double[] sum = {0, 0, 0, 0};
+        double amp = fractalBounding;
+
+        for(int i = 0; i < octaves; i++) {
+            double[] noise = ((DerivativeNoiseSampler) input).noised(seed++, x, y, z);
+            sum[0] += noise[0] * amp;
+
+            // See comment in 2D version
+            sum[1] += noise[1] * amp;
+            sum[2] += noise[2] * amp;
+            sum[3] += noise[3] * amp;
+
+            amp *= MathUtil.lerp(weightedStrength, 1.0, (noise[0] + 1) * 0.5);
 
             x *= lacunarity;
             y *= lacunarity;

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/fractal/FractalNoiseFunction.java

@@ -7,11 +7,11 @@
 
 package com.dfsek.terra.addons.noise.samplers.noise.fractal;
 
-import com.dfsek.terra.addons.noise.samplers.noise.NoiseFunction;
+import com.dfsek.terra.addons.noise.samplers.noise.DerivativeNoiseFunction;
 import com.dfsek.terra.api.noise.NoiseSampler;
 
 
-public abstract class FractalNoiseFunction extends NoiseFunction {
+public abstract class FractalNoiseFunction extends DerivativeNoiseFunction {
     protected final NoiseSampler input;
     protected double fractalBounding = 1 / 1.75;
     protected int octaves = 3;
@@ -52,4 +52,19 @@ public abstract class FractalNoiseFunction extends NoiseFunction {
     public void setWeightedStrength(double weightedStrength) {
         this.weightedStrength = weightedStrength;
     }
+
+    @Override
+    public boolean isDifferentiable() {
+        return false;
+    }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long seed, double x, double y) {
+        throw new UnsupportedOperationException("Implementation failed to check or set isDifferentiable correctly");
+    }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long seed, double x, double y, double z) {
+        throw new UnsupportedOperationException("Implementation failed to check or set isDifferentiable correctly");
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/fractal/PingPongSampler.java

@@ -36,7 +36,7 @@ public class PingPongSampler extends FractalNoiseFunction {
         for(int i = 0; i < octaves; i++) {
             double noise = pingPong((input.noise(seed++, x, y) + 1) * pingPongStrength);
             sum += (noise - 0.5) * 2 * amp;
-            amp *= MathUtil.lerp(1.0, noise, weightedStrength);
+            amp *= MathUtil.lerp(weightedStrength, 1.0, noise);
 
             x *= lacunarity;
             y *= lacunarity;
@@ -54,7 +54,7 @@ public class PingPongSampler extends FractalNoiseFunction {
         for(int i = 0; i < octaves; i++) {
             double noise = pingPong((input.noise(seed++, x, y, z) + 1) * pingPongStrength);
             sum += (noise - 0.5) * 2 * amp;
-            amp *= MathUtil.lerp(1.0, noise, weightedStrength);
+            amp *= MathUtil.lerp(weightedStrength, 1.0, noise);
 
             x *= lacunarity;
             y *= lacunarity;

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/fractal/RidgedFractalSampler.java

@@ -25,7 +25,7 @@ public class RidgedFractalSampler extends FractalNoiseFunction {
         for(int i = 0; i < octaves; i++) {
             double noise = Math.abs(input.noise(seed++, x, y));
             sum += (noise * -2 + 1) * amp;
-            amp *= MathUtil.lerp(1.0, 1 - noise, weightedStrength);
+            amp *= MathUtil.lerp(weightedStrength, 1.0, 1 - noise);
 
             x *= lacunarity;
             y *= lacunarity;
@@ -43,7 +43,7 @@ public class RidgedFractalSampler extends FractalNoiseFunction {
         for(int i = 0; i < octaves; i++) {
             double noise = Math.abs(input.noise(seed++, x, y, z));
             sum += (noise * -2 + 1) * amp;
-            amp *= MathUtil.lerp(1.0, 1 - noise, weightedStrength);
+            amp *= MathUtil.lerp(weightedStrength, 1.0, 1 - noise);
 
             x *= lacunarity;
             y *= lacunarity;

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/simplex/OpenSimplex2SSampler.java

@@ -276,4 +276,424 @@ public class OpenSimplex2SSampler extends SimplexStyleSampler {
 
         return value * 9.046026385208288;
     }
+
+    @Override
+    public boolean isDifferentiable() {
+        return true;
+    }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long sl, double x, double y) {
+        int seed = (int) sl;
+        // 2D OpenSimplex2S case is a modified 2D simplex noise.
+
+        final double SQRT3 = 1.7320508075688772935274463415059;
+        final double G2 = (3 - SQRT3) / 6;
+
+        final double F2 = 0.5f * (SQRT3 - 1);
+        double s = (x + y) * F2;
+        x += s;
+        y += s;
+
+
+        int i = (int) Math.floor(x);
+        int j = (int) Math.floor(y);
+        double xi = x - i;
+        double yi = y - j;
+
+        i *= PRIME_X;
+        j *= PRIME_Y;
+        int i1 = i + PRIME_X;
+        int j1 = j + PRIME_Y;
+
+        double t = (xi + yi) * G2;
+        double x0 = xi - t;
+        double y0 = yi - t;
+
+        double[] out = { 0.0f, 0.0f, 0.0f };
+
+        double a0 = (2.0 / 3.0) - x0 * x0 - y0 * y0;
+        double aa0 = a0 * a0, aaa0 = aa0 * a0, aaaa0 = aa0 * aa0;
+        int gi0 = gradCoordIndex(seed, i, j);
+        double gx0 = GRADIENTS_2_D[gi0], gy0 = GRADIENTS_2_D[gi0 | 1];
+        double rampValue0 = gx0 * x0 + gy0 * y0;
+        out[0] = aaaa0 * rampValue0;
+        out[1] = gx0 * aaaa0 - 8 * rampValue0 * aaa0 * x0;
+        out[2] = gy0 * aaaa0 - 8 * rampValue0 * aaa0 * y0;
+
+
+        double a1 = 2 * (1 - 2 * G2) * (1 / G2 - 2) * t + ((-2 * (1 - 2 * G2) * (1 - 2 * G2)) + a0);
+        double x1 = x0 - (1 - 2 * G2);
+        double y1 = y0 - (1 - 2 * G2);
+        double aa1 = a1 * a1, aaa1 = aa1 * a1, aaaa1 = aa1 * aa1;
+        int gi1 = gradCoordIndex(seed, i1, j1);
+        double gx1 = GRADIENTS_2_D[gi1], gy1 = GRADIENTS_2_D[gi1 | 1];
+        double rampValue1 = gx1 * x1 + gy1 * y1;
+        out[0] += aaaa1 * rampValue1;
+        out[1] += gx1 * aaaa1 - 8 * rampValue1 * aaa1 * x1;
+        out[2] += gy1 * aaaa1 - 8 * rampValue1 * aaa1 * y1;
+
+        // Nested conditionals were faster than compact bit logic/arithmetic.
+        double xmyi = xi - yi;
+        if(t > G2) {
+            if(xi + xmyi > 1) {
+                double x2 = x0 + (3 * G2 - 2);
+                double y2 = y0 + (3 * G2 - 1);
+                double a2 = (2.0 / 3.0) - x2 * x2 - y2 * y2;
+                if(a2 > 0) {
+                    double aa2 = a2 * a2, aaa2 = aa2 * a2, aaaa2 = aa2 * aa2;
+                    int gi2 = gradCoordIndex(seed, i + (PRIME_X << 1), j + PRIME_Y);
+                    double gx2 = GRADIENTS_2_D[gi2 | 0], gy2 = GRADIENTS_2_D[gi2 | 1];
+                    double rampValue2 = gx2 * x2 + gy2 * y2;
+                    out[0] += aaaa2 * rampValue2;
+                    out[1] += gx2 * aaaa2 - 8 * rampValue2 * aaa2 * x2;
+                    out[2] += gy2 * aaaa2 - 8 * rampValue2 * aaa2 * y2;
+                }
+            } else {
+                double x2 = x0 + G2;
+                double y2 = y0 + (G2 - 1);
+                double a2 = (2.0 / 3.0) - x2 * x2 - y2 * y2;
+                if(a2 > 0) {
+                    double aa2 = a2 * a2, aaa2 = aa2 * a2, aaaa2 = aa2 * aa2;
+                    int gi2 = gradCoordIndex(seed, i, j + PRIME_Y);
+                    double gx2 = GRADIENTS_2_D[gi2], gy2 = GRADIENTS_2_D[gi2 | 1];
+                    double rampValue2 = gx2 * x2 + gy2 * y2;
+                    out[0] += aaaa2 * rampValue2;
+                    out[1] += gx2 * aaaa2 - 8 * rampValue2 * aaa2 * x2;
+                    out[2] += gy2 * aaaa2 - 8 * rampValue2 * aaa2 * y2;
+                }
+            }
+
+            if(yi - xmyi > 1) {
+                double x3 = x0 + (3 * G2 - 1);
+                double y3 = y0 + (3 * G2 - 2);
+                double a3 = (2.0 / 3.0) - x3 * x3 - y3 * y3;
+                if(a3 > 0) {
+                    double aa3 = a3 * a3, aaa3 = aa3 * a3, aaaa3 = aa3 * aa3;
+                    int gi3 = gradCoordIndex(seed, i + PRIME_X, j + (PRIME_Y << 1));
+                    double gx3 = GRADIENTS_2_D[gi3], gy3 = GRADIENTS_2_D[gi3 | 1];
+                    double rampValue3 = gx3 * x3 + gy3 * y3;
+                    out[0] += aaaa3 * rampValue3;
+                    out[1] += gx3 * aaaa3 - 8 * rampValue3 * aaa3 * x3;
+                    out[2] += gy3 * aaaa3 - 8 * rampValue3 * aaa3 * y3;
+                }
+            } else {
+                double x3 = x0 + (G2 - 1);
+                double y3 = y0 + G2;
+                double a3 = (2.0 / 3.0) - x3 * x3 - y3 * y3;
+                if(a3 > 0) {
+                    double aa3 = a3 * a3, aaa3 = aa3 * a3, aaaa3 = aa3 * aa3;
+                    int gi3 = gradCoordIndex(seed, i + PRIME_X, j);
+                    double gx3 = GRADIENTS_2_D[gi3], gy3 = GRADIENTS_2_D[gi3 | 1];
+                    double rampValue3 = gx3 * x3 + gy3 * y3;
+                    out[0] += aaaa3 * rampValue3;
+                    out[1] += gx3 * aaaa3 - 8 * rampValue3 * aaa3 * x3;
+                    out[2] += gy3 * aaaa3 - 8 * rampValue3 * aaa3 * y3;
+                }
+            }
+        } else {
+            if(xi + xmyi < 0) {
+                double x2 = x0 + (1 - G2);
+                double y2 = y0 - G2;
+                double a2 = (2.0 / 3.0) - x2 * x2 - y2 * y2;
+                if(a2 > 0) {
+                    double aa2 = a2 * a2, aaa2 = aa2 * a2, aaaa2 = aa2 * aa2;
+                    int gi2 = gradCoordIndex(seed, i - PRIME_X, j);
+                    double gx2 = GRADIENTS_2_D[gi2], gy2 = GRADIENTS_2_D[gi2 | 1];
+                    double rampValue2 = gx2 * x2 + gy2 * y2;
+                    out[0] += aaaa2 * rampValue2;
+                    out[1] += gx2 * aaaa2 - 8 * rampValue2 * aaa2 * x2;
+                    out[2] += gy2 * aaaa2 - 8 * rampValue2 * aaa2 * y2;
+                }
+            } else {
+                double x2 = x0 + (G2 - 1);
+                double y2 = y0 + G2;
+                double a2 = (2.0 / 3.0) - x2 * x2 - y2 * y2;
+                if(a2 > 0) {
+                    double aa2 = a2 * a2, aaa2 = aa2 * a2, aaaa2 = aa2 * aa2;
+                    int gi2 = gradCoordIndex(seed, i + PRIME_X, j);
+                    double gx2 = GRADIENTS_2_D[gi2], gy2 = GRADIENTS_2_D[gi2 | 1];
+                    double rampValue2 = gx2 * x2 + gy2 * y2;
+                    out[0] += aaaa2 * rampValue2;
+                    out[1] += gx2 * aaaa2 - 8 * rampValue2 * aaa2 * x2;
+                    out[2] += gy2 * aaaa2 - 8 * rampValue2 * aaa2 * y2;
+                }
+            }
+
+            if(yi < xmyi) {
+                double x2 = x0 - G2;
+                double y2 = y0 - (G2 - 1);
+                double a2 = (2.0 / 3.0) - x2 * x2 - y2 * y2;
+                if(a2 > 0) {
+                    double aa2 = a2 * a2, aaa2 = aa2 * a2, aaaa2 = aa2 * aa2;
+                    int gi2 = gradCoordIndex(seed, i, j - PRIME_Y);
+                    double gx2 = GRADIENTS_2_D[gi2], gy2 = GRADIENTS_2_D[gi2 | 1];
+                    double rampValue2 = gx2 * x2 + gy2 * y2;
+                    out[0] += aaaa2 * rampValue2;
+                    out[1] += gx2 * aaaa2 - 8 * rampValue2 * aaa2 * x2;
+                    out[2] += gy2 * aaaa2 - 8 * rampValue2 * aaa2 * y2;
+                }
+            } else {
+                double x2 = x0 + G2;
+                double y2 = y0 + (G2 - 1);
+                double a2 = (2.0 / 3.0) - x2 * x2 - y2 * y2;
+                if(a2 > 0) {
+                    double aa2 = a2 * a2, aaa2 = aa2 * a2, aaaa2 = aa2 * aa2;
+                    int gi2 = gradCoordIndex(seed, i, j + PRIME_Y);
+                    double gx2 = GRADIENTS_2_D[gi2], gy2 = GRADIENTS_2_D[gi2 | 1];
+                    double rampValue2 = gx2 * x2 + gy2 * y2;
+                    out[0] += aaaa2 * rampValue2;
+                    out[1] += gx2 * aaaa2 - 8 * rampValue2 * aaa2 * x2;
+                    out[2] += gy2 * aaaa2 - 8 * rampValue2 * aaa2 * y2;
+                }
+            }
+        }
+        out[0] *= 18.24196194486065;
+        out[1] *= 18.24196194486065;
+        out[2] *= 18.24196194486065;
+        return out;
+    }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long sl, double x, double y, double z) {
+        int seed = (int) sl;
+        // 3D OpenSimplex2S case uses two offset rotated cube grids.
+        final double R3 = (2.0 / 3.0);
+        double r = (x + y + z) * R3; // Rotation, not skew
+        x = r - x;
+        y = r - y;
+        z = r - z;
+
+
+        int i = (int) Math.floor(x);
+        int j = (int) Math.floor(y);
+        int k = (int) Math.floor(z);
+        double xi = x - i;
+        double yi = y - j;
+        double zi = z - k;
+
+        i *= PRIME_X;
+        j *= PRIME_Y;
+        k *= PRIME_Z;
+        int seed2 = seed + 1293373;
+
+        int xNMask = (int) (-0.5 - xi);
+        int yNMask = (int) (-0.5 - yi);
+        int zNMask = (int) (-0.5 - zi);
+
+        double[] out = { 0.0f, 0.0f, 0.0f, 0.0f };
+
+        double x0 = xi + xNMask;
+        double y0 = yi + yNMask;
+        double z0 = zi + zNMask;
+        double a0 = 0.75 - x0 * x0 - y0 * y0 - z0 * z0;
+        double aa0 = a0 * a0, aaa0 = aa0 * a0, aaaa0 = aa0 * aa0;
+        int gi0 = gradCoordIndex(seed, i + (xNMask & PRIME_X), j + (yNMask & PRIME_Y), k + (zNMask & PRIME_Z));
+        double gx0 = GRADIENTS_3D[gi0], gy0 = GRADIENTS_3D[gi0 | 1], gz0 = GRADIENTS_3D[gi0 | 2];
+        double rampValue0 = gx0 * x0 + gy0 * y0 + gz0 * z0;
+        out[0] = aaaa0 * rampValue0;
+        out[1] = gx0 * aaaa0 - 8 * rampValue0 * aaa0 * x0;
+        out[2] = gy0 * aaaa0 - 8 * rampValue0 * aaa0 * y0;
+        out[3] = gz0 * aaaa0 - 8 * rampValue0 * aaa0 * z0;
+
+        double x1 = xi - 0.5;
+        double y1 = yi - 0.5;
+        double z1 = zi - 0.5;
+        double a1 = 0.75 - x1 * x1 - y1 * y1 - z1 * z1;
+        double aa1 = a1 * a1, aaa1 = aa1 * a1, aaaa1 = aa1 * aa1;
+        int gi1 = gradCoordIndex(seed2, i + PRIME_X, j + PRIME_Y, k + PRIME_Z);
+        double gx1 = GRADIENTS_3D[gi1], gy1 = GRADIENTS_3D[gi1 | 1], gz1 = GRADIENTS_3D[gi1 | 2];
+        double rampValue1 = gx1 * x1 + gy1 * y1 + gz1 * z1;
+        out[0] += aaaa1 * rampValue1;
+        out[1] += gx1 * aaaa1 - 8 * rampValue1 * aaa1 * x1;
+        out[2] += gy1 * aaaa1 - 8 * rampValue1 * aaa1 * y1;
+        out[3] += gz1 * aaaa1 - 8 * rampValue1 * aaa1 * z1;
+
+        double xAFlipMask0 = ((xNMask | 1) << 1) * x1;
+        double yAFlipMask0 = ((yNMask | 1) << 1) * y1;
+        double zAFlipMask0 = ((zNMask | 1) << 1) * z1;
+        double xAFlipMask1 = (-2 - (xNMask << 2)) * x1 - 1.0;
+        double yAFlipMask1 = (-2 - (yNMask << 2)) * y1 - 1.0;
+        double zAFlipMask1 = (-2 - (zNMask << 2)) * z1 - 1.0;
+
+        boolean skip5 = false;
+        double a2 = xAFlipMask0 + a0;
+        if(a2 > 0) {
+            double x2 = x0 - (xNMask | 1);
+            double aa2 = a2 * a2, aaa2 = aa2 * a2, aaaa2 = aa2 * aa2;
+            int gi2 = gradCoordIndex(seed, i + (~xNMask & PRIME_X), j + (yNMask & PRIME_Y), k + (zNMask & PRIME_Z));
+            double gx2 = GRADIENTS_3D[gi2], gy2 = GRADIENTS_3D[gi2 | 1], gz2 = GRADIENTS_3D[gi2 | 2];
+            double rampValue2 = gx2 * x2 + gy2 * y0 + gz2 * z0;
+            out[0] += aaaa2 * rampValue2;
+            out[1] += gx2 * aaaa2 - 8 * rampValue2 * aaa2 * x2;
+            out[2] += gy2 * aaaa2 - 8 * rampValue2 * aaa2 * y0;
+            out[3] += gz2 * aaaa2 - 8 * rampValue2 * aaa2 * z0;
+        } else {
+            double a3 = yAFlipMask0 + zAFlipMask0 + a0;
+            if(a3 > 0) {
+                double y3 = y0 - (yNMask | 1);
+                double z3 = z0 - (zNMask | 1);
+                double aa3 = a3 * a3, aaa3 = aa3 * a3, aaaa3 = aa3 * aa3;
+                int gi3 = gradCoordIndex(seed, i + (xNMask & PRIME_X), j + (~yNMask & PRIME_Y), k + (~zNMask & PRIME_Z));
+                double gx3 = GRADIENTS_3D[gi3], gy3 = GRADIENTS_3D[gi3 | 1], gz3 = GRADIENTS_3D[gi3 | 2];
+                double rampValue3 = gx3 * x0 + gy3 * y3 + gz3 * z3;
+                out[0] += aaaa3 * rampValue3;
+                out[1] += gx3 * aaaa3 - 8 * rampValue3 * aaa3 * x0;
+                out[2] += gy3 * aaaa3 - 8 * rampValue3 * aaa3 * y3;
+                out[3] += gz3 * aaaa3 - 8 * rampValue3 * aaa3 * z3;
+            }
+
+            double a4 = xAFlipMask1 + a1;
+            if(a4 > 0) {
+                double x4 = (xNMask | 1) + x1;
+                double aa4 = a4 * a4, aaa4 = aa4 * a4, aaaa4 = aa4 * aa4;
+                int gi4 = gradCoordIndex(seed2, i + (xNMask & (PRIME_X << 1)), j + PRIME_Y, k + PRIME_Z);
+                double gx4 = GRADIENTS_3D[gi4], gy4 = GRADIENTS_3D[gi4 | 1], gz4 = GRADIENTS_3D[gi4 | 2];
+                double rampValue4 = gx4 * x4 + gy4 * y1 + gz4 * z1;
+                out[0] += aaaa4 * rampValue4;
+                out[1] += gx4 * aaaa4 - 8 * rampValue4 * aaa4 * x4;
+                out[2] += gy4 * aaaa4 - 8 * rampValue4 * aaa4 * y1;
+                out[3] += gz4 * aaaa4 - 8 * rampValue4 * aaa4 * z1;
+                skip5 = true;
+            }
+        }
+
+        boolean skip9 = false;
+        double a6 = yAFlipMask0 + a0;
+        if(a6 > 0) {
+            double y6 = y0 - (yNMask | 1);
+            double aa6 = a6 * a6, aaa6 = aa6 * a6, aaaa6 = aa6 * aa6;
+            int gi6 = gradCoordIndex(seed, i + (xNMask & PRIME_X), j + (~yNMask & PRIME_Y), k + (zNMask & PRIME_Z));
+            double gx6 = GRADIENTS_3D[gi6], gy6 = GRADIENTS_3D[gi6 | 1], gz6 = GRADIENTS_3D[gi6 | 2];
+            double rampValue6 = gx6 * x0 + gy6 * y6 + gz6 * z0;
+            out[0] += aaaa6 * rampValue6;
+            out[1] += gx6 * aaaa6 - 8 * rampValue6 * aaa6 * x0;
+            out[2] += gy6 * aaaa6 - 8 * rampValue6 * aaa6 * y6;
+            out[3] += gz6 * aaaa6 - 8 * rampValue6 * aaa6 * z0;
+        } else {
+            double a7 = xAFlipMask0 + zAFlipMask0 + a0;
+            if(a7 > 0) {
+                double x7 = x0 - (xNMask | 1);
+                double z7 = z0 - (zNMask | 1);
+                double aa7 = a7 * a7, aaa7 = aa7 * a7, aaaa7 = aa7 * aa7;
+                int gi7 = gradCoordIndex(seed, i + (~xNMask & PRIME_X), j + (yNMask & PRIME_Y), k + (~zNMask & PRIME_Z));
+                double gx7 = GRADIENTS_3D[gi7], gy7 = GRADIENTS_3D[gi7 | 1], gz7 = GRADIENTS_3D[gi7 | 2];
+                double rampValue7 = gx7 * x7 + gy7 * y0 + gz7 * z7;
+                out[0] += aaaa7 * rampValue7;
+                out[1] += gx7 * aaaa7 - 8 * rampValue7 * aaa7 * x7;
+                out[2] += gy7 * aaaa7 - 8 * rampValue7 * aaa7 * y0;
+                out[3] += gz7 * aaaa7 - 8 * rampValue7 * aaa7 * z7;
+            }
+
+            double a8 = yAFlipMask1 + a1;
+            if(a8 > 0) {
+                double y8 = (yNMask | 1) + y1;
+                double aa8 = a8 * a8, aaa8 = aa8 * a8, aaaa8 = aa8 * aa8;
+                int gi8 = gradCoordIndex(seed2, i + PRIME_X, j + (yNMask & (PRIME_Y << 1)), k + PRIME_Z);
+                double gx8 = GRADIENTS_3D[gi8], gy8 = GRADIENTS_3D[gi8 | 1], gz8 = GRADIENTS_3D[gi8 | 2];
+                double rampValue8 = gx8 * x1 + gy8 * y8 + gz8 * z1;
+                out[0] += aaaa8 * rampValue8;
+                out[1] += gx8 * aaaa8 - 8 * rampValue8 * aaa8 * x1;
+                out[2] += gy8 * aaaa8 - 8 * rampValue8 * aaa8 * y8;
+                out[3] += gz8 * aaaa8 - 8 * rampValue8 * aaa8 * z1;
+                skip9 = true;
+            }
+        }
+
+        boolean skipD = false;
+        double aA = zAFlipMask0 + a0;
+        if(aA > 0) {
+            double zA = z0 - (zNMask | 1);
+            double aaA = aA * aA, aaaA = aaA * aA, aaaaA = aaA * aaA;
+            int giA = gradCoordIndex(seed, i + (xNMask & PRIME_X), j + (yNMask & PRIME_Y), k + (~zNMask & PRIME_Z));
+            double gxA = GRADIENTS_3D[giA], gyA = GRADIENTS_3D[giA | 1], gzA = GRADIENTS_3D[giA | 2];
+            double rampValueA = gxA * x0 + gyA * y0 + gzA * zA;
+            out[0] += aaaaA * rampValueA;
+            out[1] += gxA * aaaaA - 8 * rampValueA * aaaA * x0;
+            out[2] += gyA * aaaaA - 8 * rampValueA * aaaA * y0;
+            out[3] += gzA * aaaaA - 8 * rampValueA * aaaA * zA;
+        } else {
+            double aB = xAFlipMask0 + yAFlipMask0 + a0;
+            if(aB > 0) {
+                double xB = x0 - (xNMask | 1);
+                double yB = y0 - (yNMask | 1);
+                double aaB = aB * aB, aaaB = aaB * aB, aaaaB = aaB * aaB;
+                int giB = gradCoordIndex(seed, i + (~xNMask & PRIME_X), j + (~yNMask & PRIME_Y), k + (zNMask & PRIME_Z));
+                double gxB = GRADIENTS_3D[giB], gyB = GRADIENTS_3D[giB | 1], gzB = GRADIENTS_3D[giB | 2];
+                double rampValueB = gxB * xB + gyB * yB + gzB * z0;
+                out[0] += aaaaB * rampValueB;
+                out[1] += gxB * aaaaB - 8 * rampValueB * aaaB * xB;
+                out[2] += gyB * aaaaB - 8 * rampValueB * aaaB * yB;
+                out[3] += gzB * aaaaB - 8 * rampValueB * aaaB * z0;
+            }
+
+            double aC = zAFlipMask1 + a1;
+            if(aC > 0) {
+                double zC = (zNMask | 1) + z1;
+                double aaC = aC * aC, aaaC = aaC * aC, aaaaC = aaC * aaC;
+                int giC = gradCoordIndex(seed2, i + PRIME_X, j + PRIME_Y, k + (zNMask & (PRIME_Z << 1)));
+                double gxC = GRADIENTS_3D[giC], gyC = GRADIENTS_3D[giC | 1], gzC = GRADIENTS_3D[giC | 2];
+                double rampValueC = gxC * x1 + gyC * y1 + gzC * zC;
+                out[0] += aaaaC * rampValueC;
+                out[1] += gxC * aaaaC - 8 * rampValueC * aaaC * x1;
+                out[2] += gyC * aaaaC - 8 * rampValueC * aaaC * y1;
+                out[3] += gzC * aaaaC - 8 * rampValueC * aaaC * zC;
+                skipD = true;
+            }
+        }
+
+        if(!skip5) {
+            double a5 = yAFlipMask1 + zAFlipMask1 + a1;
+            if(a5 > 0) {
+                double y5 = (yNMask | 1) + y1;
+                double z5 = (zNMask | 1) + z1;
+                double aa5 = a5 * a5, aaa5 = aa5 * a5, aaaa5 = aa5 * aa5;
+                int gi5 = gradCoordIndex(seed2, i + PRIME_X, j + (yNMask & (PRIME_Y << 1)), k + (zNMask & (PRIME_Z << 1)));
+                double gx5 = GRADIENTS_3D[gi5], gy5 = GRADIENTS_3D[gi5 | 1], gz5 = GRADIENTS_3D[gi5 | 2];
+                double rampValue5 = gx5 * x1 + gy5 * y5 + gz5 * z5;
+                out[0] += aaaa5 * rampValue5;
+                out[1] += gx5 * aaaa5 - 8 * rampValue5 * aaa5 * x1;
+                out[2] += gy5 * aaaa5 - 8 * rampValue5 * aaa5 * y5;
+                out[3] += gz5 * aaaa5 - 8 * rampValue5 * aaa5 * z5;
+            }
+        }
+
+        if(!skip9) {
+            double a9 = xAFlipMask1 + zAFlipMask1 + a1;
+            if(a9 > 0) {
+                double x9 = (xNMask | 1) + x1;
+                double z9 = (zNMask | 1) + z1;
+                double aa9 = a9 * a9, aaa9 = aa9 * a9, aaaa9 = aa9 * aa9;
+                int gi9 = gradCoordIndex(seed2, i + (xNMask & (PRIME_X << 1)), j + PRIME_Y, k + (zNMask & (PRIME_Z << 1)));
+                double gx9 = GRADIENTS_3D[gi9], gy9 = GRADIENTS_3D[gi9 | 1], gz9 = GRADIENTS_3D[gi9 | 2];
+                double rampValue9 = gx9 * x9 + gy9 * y1 + gz9 * z9;
+                out[0] += aaaa9 * rampValue9;
+                out[1] += gx9 * aaaa9 - 8 * rampValue9 * aaa9 * x9;
+                out[2] += gy9 * aaaa9 - 8 * rampValue9 * aaa9 * y1;
+                out[3] += gz9 * aaaa9 - 8 * rampValue9 * aaa9 * z9;
+            }
+        }
+
+        if(!skipD) {
+            double aD = xAFlipMask1 + yAFlipMask1 + a1;
+            if(aD > 0) {
+                double xD = (xNMask | 1) + x1;
+                double yD = (yNMask | 1) + y1;
+                double aaD = aD * aD, aaaD = aaD * aD, aaaaD = aaD * aaD;
+                int giD = gradCoordIndex(seed2, i + (xNMask & (PRIME_X << 1)), j + (yNMask & (PRIME_Y << 1)), k + PRIME_Z);
+                double gxD = GRADIENTS_3D[giD], gyD = GRADIENTS_3D[giD | 1], gzD = GRADIENTS_3D[giD | 2];
+                double rampValueD = gxD * xD + gyD * yD + gzD * z1;
+                out[0] += aaaaD * rampValueD;
+                out[1] += gxD * aaaaD - 8 * rampValueD * aaaD * xD;
+                out[2] += gyD * aaaaD - 8 * rampValueD * aaaD * yD;
+                out[3] += gzD * aaaaD - 8 * rampValueD * aaaD * z1;
+            }
+        }
+
+        out[0] *= 9.046026385208288;
+        out[1] *= 9.046026385208288;
+        out[2] *= 9.046026385208288;
+        out[3] *= 9.046026385208288;
+        return out;
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/simplex/OpenSimplex2Sampler.java

@@ -37,41 +37,37 @@ public class OpenSimplex2Sampler extends SimplexStyleSampler {
         i *= PRIME_X;
         j *= PRIME_Y;
 
-        double n0, n1, n2;
+        double value = 0;
 
         double a = 0.5 - x0 * x0 - y0 * y0;
-        if(a <= 0) n0 = 0;
-        else {
-            n0 = (a * a) * (a * a) * gradCoord(seed, i, j, x0, y0);
+        if(a > 0) {
+            value = (a * a) * (a * a) * gradCoord(seed, i, j, x0, y0);
         }
 
         double c = 2 * (1 - 2 * G2) * (1 / G2 - 2) * t + ((-2 * (1 - 2 * G2) * (1 - 2 * G2)) + a);
-        if(c <= 0) n2 = 0;
-        else {
+        if(c > 0) {
             double x2 = x0 + (2 * G2 - 1);
             double y2 = y0 + (2 * G2 - 1);
-            n2 = (c * c) * (c * c) * gradCoord(seed, i + PRIME_X, j + PRIME_Y, x2, y2);
+            value += (c * c) * (c * c) * gradCoord(seed, i + PRIME_X, j + PRIME_Y, x2, y2);
         }
 
         if(y0 > x0) {
             double x1 = x0 + G2;
             double y1 = y0 + (G2 - 1);
             double b = 0.5 - x1 * x1 - y1 * y1;
-            if(b <= 0) n1 = 0;
-            else {
-                n1 = (b * b) * (b * b) * gradCoord(seed, i, j + PRIME_Y, x1, y1);
+            if(b > 0) {
+                value += (b * b) * (b * b) * gradCoord(seed, i, j + PRIME_Y, x1, y1);
             }
         } else {
             double x1 = x0 + (G2 - 1);
             double y1 = y0 + G2;
             double b = 0.5 - x1 * x1 - y1 * y1;
-            if(b <= 0) n1 = 0;
-            else {
-                n1 = (b * b) * (b * b) * gradCoord(seed, i + PRIME_X, j, x1, y1);
+            if(b > 0) {
+                value += (b * b) * (b * b) * gradCoord(seed, i + PRIME_X, j, x1, y1);
             }
         }
 
-        return (n0 + n1 + n2) * 99.83685446303647f;
+        return value * 99.83685446303647f;
     }
 
     @Override
@@ -157,4 +153,208 @@ public class OpenSimplex2Sampler extends SimplexStyleSampler {
 
         return value * 32.69428253173828125;
     }
+
+    @Override
+    public boolean isDifferentiable() {
+        return true;
+    }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long sl, double x, double y) {
+        int seed = (int) sl;
+        // 2D OpenSimplex2 case uses the same algorithm as ordinary Simplex.
+        final double G2 = (3 - SQRT3) / 6;
+
+        final double F2 = 0.5f * (SQRT3 - 1);
+        double s = (x + y) * F2;
+        x += s;
+        y += s;
+
+
+        int i = (int) Math.floor(x);
+        int j = (int) Math.floor(y);
+        double xi = x - i;
+        double yi = y - j;
+
+        double t = (xi + yi) * G2;
+        double x0 = xi - t;
+        double y0 = yi - t;
+
+        i *= PRIME_X;
+        j *= PRIME_Y;
+
+        double[] out = { 0.0f, 0.0f, 0.0f };
+
+        double a = 0.5 - x0 * x0 - y0 * y0;
+        if(a > 0) {
+            double aa = a * a, aaa = aa * a, aaaa = aa * aa;
+            int gi = gradCoordIndex(seed, i, j);
+            double gx = GRADIENTS_2_D[gi], gy = GRADIENTS_2_D[gi | 1];
+            double rampValue = gx * x0 + gy * y0;
+            out[0] += aaaa * rampValue;
+            out[1] += gx * aaaa - 8 * rampValue * aaa * x0;
+            out[2] += gy * aaaa - 8 * rampValue * aaa * y0;
+        }
+
+        double c = 2 * (1 - 2 * G2) * (1 / G2 - 2) * t + ((-2 * (1 - 2 * G2) * (1 - 2 * G2)) + a);
+        if(c > 0) {
+            double x2 = x0 + (2 * G2 - 1);
+            double y2 = y0 + (2 * G2 - 1);
+            double cc = c * c, ccc = cc * c, cccc = cc * cc;
+            int gi = gradCoordIndex(seed, i + PRIME_X, j + PRIME_Y);
+            double gx = GRADIENTS_2_D[gi], gy = GRADIENTS_2_D[gi | 1];
+            double rampValue = gx * x2 + gy * y2;
+            out[0] += cccc * rampValue;
+            out[1] += gx * cccc - 8 * rampValue * ccc * x2;
+            out[2] += gy * cccc - 8 * rampValue * ccc * y2;
+        }
+
+        if(y0 > x0) {
+            double x1 = x0 + G2;
+            double y1 = y0 + (G2 - 1);
+            double b = 0.5 - x1 * x1 - y1 * y1;
+            if(b > 0) {
+                double bb = b * b, bbb = bb * b, bbbb = bb * bb;
+                int gi = gradCoordIndex(seed, i, j + PRIME_Y);
+                double gx = GRADIENTS_2_D[gi], gy = GRADIENTS_2_D[gi | 1];
+                double rampValue = gx * x1 + gy * y1;
+                out[0] += bbbb * rampValue;
+                out[1] += gx * bbbb - 8 * rampValue * bbb * x1;
+                out[2] += gy * bbbb - 8 * rampValue * bbb * y1;
+            }
+        } else {
+            double x1 = x0 + (G2 - 1);
+            double y1 = y0 + G2;
+            double b = 0.5 - x1 * x1 - y1 * y1;
+            if(b > 0) {
+                double bb = b * b, bbb = bb * b, bbbb = bb * bb;
+                int gi = gradCoordIndex(seed, i + PRIME_X, j);
+                double gx = GRADIENTS_2_D[gi], gy = GRADIENTS_2_D[gi | 1];
+                double rampValue = gx * x1 + gy * y1;
+                out[0] += bbbb * rampValue;
+                out[1] += gx * bbbb - 8 * rampValue * bbb * x1;
+                out[2] += gy * bbbb - 8 * rampValue * bbb * y1;
+            }
+        }
+
+        out[0] *= 99.83685446303647f;
+        out[1] *= 99.83685446303647f;
+        out[2] *= 99.83685446303647f;
+        return out;
+    }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long sl, double x, double y, double z) {
+        int seed = (int) sl;
+        // 3D OpenSimplex2Sampler case uses two offset rotated cube grids.
+        final double R3 = (2.0 / 3.0);
+        double r = (x + y + z) * R3; // Rotation, not skew
+        x = r - x;
+        y = r - y;
+        z = r - z;
+
+
+        int i = (int) Math.round(x);
+        int j = (int) Math.round(y);
+        int k = (int) Math.round(z);
+        double x0 = x - i;
+        double y0 = y - j;
+        double z0 = z - k;
+
+        int xNSign = (int) (-1.0 - x0) | 1;
+        int yNSign = (int) (-1.0 - y0) | 1;
+        int zNSign = (int) (-1.0 - z0) | 1;
+
+        double ax0 = xNSign * -x0;
+        double ay0 = yNSign * -y0;
+        double az0 = zNSign * -z0;
+
+        i *= PRIME_X;
+        j *= PRIME_Y;
+        k *= PRIME_Z;
+
+        double[] out = { 0.0f, 0.0f, 0.0f, 0.0f };
+        double a = (0.6f - x0 * x0) - (y0 * y0 + z0 * z0);
+
+        for(int l = 0; ; l++) {
+            if(a > 0) {
+                double aa = a * a, aaa = aa * a, aaaa = aa * aa;
+                int gi = gradCoordIndex(seed, i, j, k);
+                double gx = GRADIENTS_3D[gi], gy = GRADIENTS_3D[gi | 1], gz = GRADIENTS_3D[gi | 2];
+                double rampValue = gx * x0 + gy * y0 + gz * z0;
+                out[0] += aaaa * rampValue;
+                out[1] += gx * aaaa - 8 * rampValue * aaa * x0;
+                out[1] += gy * aaaa - 8 * rampValue * aaa * y0;
+                out[2] += gz * aaaa - 8 * rampValue * aaa * z0;
+            }
+
+            if(ax0 >= ay0 && ax0 >= az0) {
+                double b = a + ax0 + ax0;
+                if(b > 1) {
+                    b -= 1;
+                    double bb = b * b, bbb = bb * b, bbbb = bb * bb;
+                    int gi = gradCoordIndex(seed, i - xNSign * PRIME_X, j, k);
+                    double gx = GRADIENTS_3D[gi], gy = GRADIENTS_3D[gi | 1], gz = GRADIENTS_3D[gi | 2];
+                    double rampValue = gx * (x0 + xNSign) + gy * y0 + gz * z0;
+                    out[0] += bbbb * rampValue;
+                    out[1] += gx * bbbb - 8 * rampValue * bbb * (x0 + xNSign);
+                    out[1] += gy * bbbb - 8 * rampValue * bbb * y0;
+                    out[2] += gz * bbbb - 8 * rampValue * bbb * z0;
+                }
+            } else if(ay0 > ax0 && ay0 >= az0) {
+                double b = a + ay0 + ay0;
+                if(b > 1) {
+                    b -= 1;
+                    double bb = b * b, bbb = bb * b, bbbb = bb * bb;
+                    int gi = gradCoordIndex(seed, i, j - yNSign * PRIME_Y, k);
+                    double gx = GRADIENTS_3D[gi], gy = GRADIENTS_3D[gi | 1], gz = GRADIENTS_3D[gi | 2];
+                    double rampValue = gx * x0 + gy * (y0 + yNSign) + gz * z0;
+                    out[0] += bbbb * rampValue;
+                    out[1] += gx * bbbb - 8 * rampValue * bbb * x0;
+                    out[1] += gy * bbbb - 8 * rampValue * bbb * (y0 + yNSign);
+                    out[2] += gz * bbbb - 8 * rampValue * bbb * z0;
+                }
+            } else {
+                double b = a + az0 + az0;
+                if(b > 1) {
+                    b -= 1;
+                    double bb = b * b, bbb = bb * b, bbbb = bb * bb;
+                    int gi = gradCoordIndex(seed, i, j, k - zNSign * PRIME_Z);
+                    double gx = GRADIENTS_3D[gi], gy = GRADIENTS_3D[gi | 1], gz = GRADIENTS_3D[gi | 2];
+                    double rampValue = gx * x0 + gy * y0 + gz * (z0 + zNSign);
+                    out[0] += bbbb * rampValue;
+                    out[1] += gx * bbbb - 8 * rampValue * bbb * x0;
+                    out[1] += gy * bbbb - 8 * rampValue * bbb * y0;
+                    out[2] += gz * bbbb - 8 * rampValue * bbb * (z0 + zNSign);
+                }
+            }
+
+            if(l == 1) break;
+
+            ax0 = 0.5 - ax0;
+            ay0 = 0.5 - ay0;
+            az0 = 0.5 - az0;
+
+            x0 = xNSign * ax0;
+            y0 = yNSign * ay0;
+            z0 = zNSign * az0;
+
+            a += (0.75 - ax0) - (ay0 + az0);
+
+            i += (xNSign >> 1) & PRIME_X;
+            j += (yNSign >> 1) & PRIME_Y;
+            k += (zNSign >> 1) & PRIME_Z;
+
+            xNSign = -xNSign;
+            yNSign = -yNSign;
+            zNSign = -zNSign;
+
+            seed = ~seed;
+        }
+        out[0] *= 32.69428253173828125;
+        out[1] *= 32.69428253173828125;
+        out[2] *= 32.69428253173828125;
+        out[3] *= 32.69428253173828125;
+        return out;
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/simplex/PerlinSampler.java

@@ -33,10 +33,10 @@ public class PerlinSampler extends SimplexStyleSampler {
         int x1 = x0 + PRIME_X;
         int y1 = y0 + PRIME_Y;
 
-        double xf0 = MathUtil.lerp(gradCoord(seed, x0, y0, xd0, yd0), gradCoord(seed, x1, y0, xd1, yd0), xs);
-        double xf1 = MathUtil.lerp(gradCoord(seed, x0, y1, xd0, yd1), gradCoord(seed, x1, y1, xd1, yd1), xs);
+        double xf0 = MathUtil.lerp(xs, gradCoord(seed, x0, y0, xd0, yd0), gradCoord(seed, x1, y0, xd1, yd0));
+        double xf1 = MathUtil.lerp(xs, gradCoord(seed, x0, y1, xd0, yd1), gradCoord(seed, x1, y1, xd1, yd1));
 
-        return MathUtil.lerp(xf0, xf1, ys) * 1.4247691104677813;
+        return MathUtil.lerp(ys, xf0, xf1) * 1.4247691104677813;
     }
 
     @Override
@@ -64,14 +64,14 @@ public class PerlinSampler extends SimplexStyleSampler {
         int y1 = y0 + PRIME_Y;
         int z1 = z0 + PRIME_Z;
 
-        double xf00 = MathUtil.lerp(gradCoord(seed, x0, y0, z0, xd0, yd0, zd0), gradCoord(seed, x1, y0, z0, xd1, yd0, zd0), xs);
-        double xf10 = MathUtil.lerp(gradCoord(seed, x0, y1, z0, xd0, yd1, zd0), gradCoord(seed, x1, y1, z0, xd1, yd1, zd0), xs);
-        double xf01 = MathUtil.lerp(gradCoord(seed, x0, y0, z1, xd0, yd0, zd1), gradCoord(seed, x1, y0, z1, xd1, yd0, zd1), xs);
-        double xf11 = MathUtil.lerp(gradCoord(seed, x0, y1, z1, xd0, yd1, zd1), gradCoord(seed, x1, y1, z1, xd1, yd1, zd1), xs);
+        double xf00 = MathUtil.lerp(xs, gradCoord(seed, x0, y0, z0, xd0, yd0, zd0), gradCoord(seed, x1, y0, z0, xd1, yd0, zd0));
+        double xf10 = MathUtil.lerp(xs, gradCoord(seed, x0, y1, z0, xd0, yd1, zd0), gradCoord(seed, x1, y1, z0, xd1, yd1, zd0));
+        double xf01 = MathUtil.lerp(xs, gradCoord(seed, x0, y0, z1, xd0, yd0, zd1), gradCoord(seed, x1, y0, z1, xd1, yd0, zd1));
+        double xf11 = MathUtil.lerp(xs, gradCoord(seed, x0, y1, z1, xd0, yd1, zd1), gradCoord(seed, x1, y1, z1, xd1, yd1, zd1));
 
-        double yf0 = MathUtil.lerp(xf00, xf10, ys);
-        double yf1 = MathUtil.lerp(xf01, xf11, ys);
+        double yf0 = MathUtil.lerp(ys, xf00, xf10);
+        double yf1 = MathUtil.lerp(ys, xf01, xf11);
 
-        return MathUtil.lerp(yf0, yf1, zs) * 0.964921414852142333984375;
+        return MathUtil.lerp(zs, yf0, yf1) * 0.964921414852142333984375;
     }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/simplex/SimplexStyleSampler.java

@@ -7,13 +7,13 @@
 
 package com.dfsek.terra.addons.noise.samplers.noise.simplex;
 
-import com.dfsek.terra.addons.noise.samplers.noise.NoiseFunction;
+import com.dfsek.terra.addons.noise.samplers.noise.DerivativeNoiseFunction;
 
 
 /**
  * Abstract NoiseSampler implementation for simplex-style noise functions.
  */
-public abstract class SimplexStyleSampler extends NoiseFunction {
+public abstract class SimplexStyleSampler extends DerivativeNoiseFunction {
     protected static final double[] GRADIENTS_2_D = {
         0.130526192220052d, 0.99144486137381d, 0.38268343236509d, 0.923879532511287d, 0.608761429008721d, 0.793353340291235d,
         0.793353340291235d, 0.608761429008721d, 0.923879532511287d, 0.38268343236509d, 0.99144486137381d, 0.130526192220051d,
@@ -79,26 +79,53 @@ public abstract class SimplexStyleSampler extends NoiseFunction {
         1, 1, 0, 0, 0, -1, 1, 0, -1, 1, 0, 0, 0, -1, -1, 0
     };
 
-    protected static double gradCoord(int seed, int xPrimed, int yPrimed, double xd, double yd) {
+    protected static int gradCoordIndex(int seed, int xPrimed, int yPrimed) {
         int hash = hash(seed, xPrimed, yPrimed);
         hash ^= hash >> 15;
         hash &= 127 << 1;
 
-        double xg = GRADIENTS_2_D[hash];
-        double yg = GRADIENTS_2_D[hash | 1];
+        return hash;
+    }
+
+    protected static double gradCoord(int seed, int xPrimed, int yPrimed, double xd, double yd) {
+        int index = gradCoordIndex(seed, xPrimed, yPrimed);
+
+        double xg = GRADIENTS_2_D[index];
+        double yg = GRADIENTS_2_D[index | 1];
 
         return xd * xg + yd * yg;
     }
 
-    protected static double gradCoord(int seed, int xPrimed, int yPrimed, int zPrimed, double xd, double yd, double zd) {
+    protected static int gradCoordIndex(int seed, int xPrimed, int yPrimed, int zPrimed) {
         int hash = hash(seed, xPrimed, yPrimed, zPrimed);
         hash ^= hash >> 15;
         hash &= 63 << 2;
 
-        double xg = GRADIENTS_3D[hash];
-        double yg = GRADIENTS_3D[hash | 1];
-        double zg = GRADIENTS_3D[hash | 2];
+        return hash;
+    }
+
+    protected static double gradCoord(int seed, int xPrimed, int yPrimed, int zPrimed, double xd, double yd, double zd) {
+        int index = gradCoordIndex(seed, xPrimed, yPrimed, zPrimed);
+
+        double xg = GRADIENTS_3D[index];
+        double yg = GRADIENTS_3D[index | 1];
+        double zg = GRADIENTS_3D[index | 2];
 
         return xd * xg + yd * yg + zd * zg;
     }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long seed, double x, double y) {
+        throw new UnsupportedOperationException("Implementation failed to check or set isDifferentiable correctly");
+    }
+
+    @Override
+    public double[] getNoiseDerivativeRaw(long seed, double x, double y, double z) {
+        throw new UnsupportedOperationException("Implementation failed to check or set isDifferentiable correctly");
+    }
+
+    @Override
+    public boolean isDifferentiable() {
+        return false;
+    }
 }

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/noise/value/ValueSampler.java

@@ -25,10 +25,10 @@ public class ValueSampler extends ValueStyleNoise {
         int x1 = x0 + PRIME_X;
         int y1 = y0 + PRIME_Y;
 
-        double xf0 = MathUtil.lerp(valCoord(seed, x0, y0), valCoord(seed, x1, y0), xs);
-        double xf1 = MathUtil.lerp(valCoord(seed, x0, y1), valCoord(seed, x1, y1), xs);
+        double xf0 = MathUtil.lerp(xs, valCoord(seed, x0, y0), valCoord(seed, x1, y0));
+        double xf1 = MathUtil.lerp(xs, valCoord(seed, x0, y1), valCoord(seed, x1, y1));
 
-        return MathUtil.lerp(xf0, xf1, ys);
+        return MathUtil.lerp(ys, xf0, xf1);
     }
 
     @Override
@@ -49,14 +49,14 @@ public class ValueSampler extends ValueStyleNoise {
         int y1 = y0 + PRIME_Y;
         int z1 = z0 + PRIME_Z;
 
-        double xf00 = MathUtil.lerp(valCoord(seed, x0, y0, z0), valCoord(seed, x1, y0, z0), xs);
-        double xf10 = MathUtil.lerp(valCoord(seed, x0, y1, z0), valCoord(seed, x1, y1, z0), xs);
-        double xf01 = MathUtil.lerp(valCoord(seed, x0, y0, z1), valCoord(seed, x1, y0, z1), xs);
-        double xf11 = MathUtil.lerp(valCoord(seed, x0, y1, z1), valCoord(seed, x1, y1, z1), xs);
+        double xf00 = MathUtil.lerp(xs, valCoord(seed, x0, y0, z0), valCoord(seed, x1, y0, z0));
+        double xf10 = MathUtil.lerp(xs, valCoord(seed, x0, y1, z0), valCoord(seed, x1, y1, z0));
+        double xf01 = MathUtil.lerp(xs, valCoord(seed, x0, y0, z1), valCoord(seed, x1, y0, z1));
+        double xf11 = MathUtil.lerp(xs, valCoord(seed, x0, y1, z1), valCoord(seed, x1, y1, z1));
 
-        double yf0 = MathUtil.lerp(xf00, xf10, ys);
-        double yf1 = MathUtil.lerp(xf01, xf11, ys);
+        double yf0 = MathUtil.lerp(ys, xf00, xf10);
+        double yf1 = MathUtil.lerp(ys, xf01, xf11);
 
-        return MathUtil.lerp(yf0, yf1, zs);
+        return MathUtil.lerp(zs, yf0, yf1);
     }
 }

common/addons/config-ore/build.gradle.kts

@@ -1,4 +1,4 @@
-version = version("1.1.0")
+version = version("1.1.1")
 
 dependencies {
     compileOnlyApi(project(":common:addons:manifest-addon-loader"))

common/addons/config-ore/src/main/java/com/dfsek/terra/addons/ore/utils/VanillaOreUtils.java

@@ -8,31 +8,24 @@ import com.dfsek.terra.api.world.WritableWorld;
 
 
 public class VanillaOreUtils {
-    protected static boolean shouldNotDiscard(Random random, double chance) {
-        if(chance <= 0.0F) {
-            return true;
-        } else if(chance >= 1.0F) {
-            return false;
-        } else {
-            return random.nextFloat() >= chance;
-        }
+    private static boolean shouldExpose(Random random, double exposedChance) {
+        if(exposedChance >= 1.0F) return true;
+        if(exposedChance <= 0.0F) return false;
+        return random.nextFloat() < exposedChance;
     }
 
-    public static boolean shouldPlace(MaterialSet replaceable, BlockType type, Double exposed, Random random, WritableWorld world, int x,
+    public static boolean shouldPlace(MaterialSet replaceable, BlockType type, Double exposedChance, Random random, WritableWorld world,
+                                      int x,
                                       int y, int z) {
-        if(!replaceable.contains(type)) {
-            return false;
-        } else if(shouldNotDiscard(random, exposed)) {
-            return true;
-        } else {
-            return !(world.getBlockState(x, y, z - 1).isAir() ||
-                     world.getBlockState(x, y, z + 1).isAir() ||
-                     world.getBlockState(x, y - 1, z).isAir() ||
-                     world.getBlockState(x, y + 1, z).isAir() ||
-                     world.getBlockState(x - 1, y, z).isAir() ||
-                     world.getBlockState(x + 1, y, z).isAir());
-        }
+        if(!replaceable.contains(type)) return false;
+        if(shouldExpose(random, exposedChance)) return true; // Exposed blocks can be placed regardless of adjacency to air
+        // Adjacency is checked after determining not exposed rather than vice-versa, assuming block checks are more expensive
+        boolean adjacentAir = world.getBlockState(x, y, z - 1).isAir() ||
+                              world.getBlockState(x, y, z + 1).isAir() ||
+                              world.getBlockState(x, y - 1, z).isAir() ||
+                              world.getBlockState(x, y + 1, z).isAir() ||
+                              world.getBlockState(x - 1, y, z).isAir() ||
+                              world.getBlockState(x + 1, y, z).isAir();
+        return !adjacentAir; // Exposed check did not pass earlier so only blocks not adjacent air should place
     }
-
 }
-

common/addons/generation-stage-feature/src/main/java/com/dfsek/terra/addons/generation/feature/FeatureGenerationAddon.java

@@ -11,13 +11,6 @@ import com.dfsek.tectonic.api.config.template.dynamic.DynamicTemplate;
 import com.dfsek.tectonic.api.config.template.dynamic.DynamicValue;
 import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.function.Supplier;
-
 import com.dfsek.terra.addons.generation.feature.config.BiomeFeatures;
 import com.dfsek.terra.addons.generation.feature.config.FeatureStageTemplate;
 import com.dfsek.terra.addons.manifest.api.AddonInitializer;
@@ -35,6 +28,9 @@ import com.dfsek.terra.api.util.reflection.TypeKey;
 import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.chunk.generation.stage.GenerationStage;
 
+import java.util.*;
+import java.util.function.Supplier;
+
 
 public class FeatureGenerationAddon implements AddonInitializer {
     public static final TypeKey<Supplier<ObjectTemplate<GenerationStage>>> STAGE_TYPE_KEY = new TypeKey<>() {

common/addons/generation-stage-feature/src/main/java/com/dfsek/terra/addons/generation/feature/FeatureGenerationStage.java

@@ -7,11 +7,9 @@
 
 package com.dfsek.terra.addons.generation.feature;
 
-import java.util.Collections;
-import java.util.Random;
-
 import com.dfsek.terra.addons.generation.feature.config.BiomeFeatures;
 import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.properties.PropertyKey;
 import com.dfsek.terra.api.registry.key.StringIdentifiable;
 import com.dfsek.terra.api.util.Rotation;
@@ -21,6 +19,9 @@ import com.dfsek.terra.api.world.chunk.generation.ProtoWorld;
 import com.dfsek.terra.api.world.chunk.generation.stage.GenerationStage;
 import com.dfsek.terra.api.world.chunk.generation.util.Column;
 
+import java.util.Collections;
+import java.util.Random;
+
 
 public class FeatureGenerationStage implements GenerationStage, StringIdentifiable {
     private final Platform platform;
@@ -31,13 +32,20 @@ public class FeatureGenerationStage implements GenerationStage, StringIdentifiab
 
     private final int resolution;
     private final PropertyKey<BiomeFeatures> biomeFeaturesKey;
+    private final NoiseSampler blendSampler;
+    private final boolean doBlending;
+    private final double blendAmplitude;
 
-    public FeatureGenerationStage(Platform platform, String id, int resolution, PropertyKey<BiomeFeatures> biomeFeaturesKey) {
+    public FeatureGenerationStage(Platform platform, String id, int resolution, PropertyKey<BiomeFeatures> biomeFeaturesKey,
+                                  NoiseSampler blendSampler, double blendAmplitude) {
         this.platform = platform;
         this.id = id;
         this.profile = "feature_stage:" + id;
         this.resolution = resolution;
         this.biomeFeaturesKey = biomeFeaturesKey;
+        this.blendSampler = blendSampler;
+        this.doBlending = blendAmplitude != 0d;
+        this.blendAmplitude = blendAmplitude;
     }
 
     @Override
@@ -52,7 +60,10 @@ public class FeatureGenerationStage implements GenerationStage, StringIdentifiab
                 int tx = cx + chunkX;
                 int tz = cz + chunkZ;
                 world.getBiomeProvider()
-                    .getColumn(tx, tz, world)
+                    .getColumn(
+                        tx + (doBlending ? (int) (blendSampler.noise(seed, tx, tz) * blendAmplitude) : 0),
+                        tz + (doBlending ? (int) (blendSampler.noise(seed + 1, tx, tz) * blendAmplitude) : 0),
+                        world)
                     .forRanges(resolution, (min, max, biome) -> {
                         for(int subChunkX = 0; subChunkX < resolution; subChunkX++) {
                             for(int subChunkZ = 0; subChunkZ < resolution; subChunkZ++) {

common/addons/generation-stage-feature/src/main/java/com/dfsek/terra/addons/generation/feature/config/FeatureStageTemplate.java

@@ -8,6 +8,7 @@ import com.dfsek.tectonic.api.exception.ValidationException;
 
 import com.dfsek.terra.addons.generation.feature.FeatureGenerationStage;
 import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.properties.PropertyKey;
 import com.dfsek.terra.api.world.chunk.generation.stage.GenerationStage;
 
@@ -22,6 +23,24 @@ public class FeatureStageTemplate implements ObjectTemplate<GenerationStage>, Va
     @Default
     private int resolution = 4;
 
+    @Value("blend.sampler")
+    @Default
+    private NoiseSampler blendSampler = new NoiseSampler() {
+        @Override
+        public double noise(long seed, double x, double y) {
+            return 0;
+        }
+
+        @Override
+        public double noise(long seed, double x, double y, double z) {
+            return 0;
+        }
+    };
+
+    @Value("blend.amplitude")
+    @Default
+    private double blendAmplitude = 0d;
+
     public FeatureStageTemplate(Platform platform, PropertyKey<BiomeFeatures> biomeFeaturesKey) {
         this.platform = platform;
         this.biomeFeaturesKey = biomeFeaturesKey;
@@ -30,7 +49,7 @@ public class FeatureStageTemplate implements ObjectTemplate<GenerationStage>, Va
 
     @Override
     public FeatureGenerationStage get() {
-        return new FeatureGenerationStage(platform, id, resolution, biomeFeaturesKey);
+        return new FeatureGenerationStage(platform, id, resolution, biomeFeaturesKey, blendSampler, blendAmplitude);
     }
 
     @Override

common/addons/structure-mutator/src/main/java/com/dfsek/terra/addons/structure/mutator/MutatedStructure.java

@@ -1,7 +1,5 @@
 package com.dfsek.terra.addons.structure.mutator;
 
-import java.util.Random;
-
 import com.dfsek.terra.api.registry.key.Keyed;
 import com.dfsek.terra.api.registry.key.RegistryKey;
 import com.dfsek.terra.api.structure.Structure;
@@ -11,6 +9,8 @@ import com.dfsek.terra.api.world.WritableWorld;
 import com.dfsek.terra.api.world.util.ReadInterceptor;
 import com.dfsek.terra.api.world.util.WriteInterceptor;
 
+import java.util.Random;
+
 
 public class MutatedStructure implements Structure, Keyed<MutatedStructure> {
     private final RegistryKey key;

common/addons/structure-terrascript-loader/src/main/java/com/dfsek/terra/addons/terrascript/script/builders/CheckBlockFunctionBuilder.java

@@ -7,13 +7,13 @@
 
 package com.dfsek.terra.addons.terrascript.script.builders;
 
-import java.util.List;
-
 import com.dfsek.terra.addons.terrascript.parser.lang.Returnable;
 import com.dfsek.terra.addons.terrascript.parser.lang.functions.FunctionBuilder;
 import com.dfsek.terra.addons.terrascript.script.functions.CheckBlockFunction;
 import com.dfsek.terra.addons.terrascript.tokenizer.Position;
 
+import java.util.List;
+
 
 public class CheckBlockFunctionBuilder implements FunctionBuilder<CheckBlockFunction> {
     @SuppressWarnings("unchecked")

common/addons/structure-terrascript-loader/src/main/java/com/dfsek/terra/addons/terrascript/script/functions/BlockFunction.java

@@ -10,8 +10,8 @@ package com.dfsek.terra.addons.terrascript.script.functions;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.HashMap;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
 
 import com.dfsek.terra.addons.terrascript.parser.lang.ImplementationArguments;
 import com.dfsek.terra.addons.terrascript.parser.lang.Returnable;
@@ -32,7 +32,7 @@ public class BlockFunction implements Function<Void> {
     protected final Returnable<Number> x, y, z;
     protected final Returnable<String> blockData;
     protected final Platform platform;
-    private final Map<String, BlockState> data = new HashMap<>();
+    private final Map<String, BlockState> data = new ConcurrentHashMap<>();
     private final Returnable<Boolean> overwrite;
     private final Returnable<Boolean> physics;
     private final Position position;

common/api/build.gradle.kts

@@ -2,10 +2,10 @@ dependencies {
     api("ca.solo-studios", "strata", Versions.Libraries.strata)
     compileOnlyApi("org.slf4j", "slf4j-api", Versions.Libraries.slf4j)
     testImplementation("org.slf4j", "slf4j-api", Versions.Libraries.slf4j)
-    api("cloud.commandframework", "cloud-core", Versions.Libraries.cloud)
+    api("org.incendo", "cloud-core", Versions.Libraries.cloud)
 
     api("com.dfsek.tectonic", "common", Versions.Libraries.tectonic)
 
-    api("com.github.ben-manes.caffeine:caffeine:3.1.0")
+    api("com.github.ben-manes.caffeine", "caffeine", Versions.Libraries.caffeine)
 
 }

common/api/src/main/java/com/dfsek/terra/api/Platform.java

@@ -81,4 +81,7 @@ public interface Platform extends LoaderRegistrar {
     @NotNull
     @Contract(pure = true)
     Profiler getProfiler();
+
+    @Contract(pure = true)
+    int getGenerationThreads();
 }

common/api/src/main/java/com/dfsek/terra/api/command/arguments/RegistryArgument.java

@@ -1,18 +1,19 @@
 package com.dfsek.terra.api.command.arguments;
 
-import cloud.commandframework.ArgumentDescription;
-import cloud.commandframework.arguments.CommandArgument;
-import cloud.commandframework.arguments.parser.ArgumentParseResult;
-import cloud.commandframework.arguments.parser.ArgumentParser;
-import cloud.commandframework.context.CommandContext;
 import io.leangen.geantyref.TypeToken;
 import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
+import org.incendo.cloud.component.CommandComponent;
+import org.incendo.cloud.component.DefaultValue;
+import org.incendo.cloud.context.CommandContext;
+import org.incendo.cloud.context.CommandInput;
+import org.incendo.cloud.parser.ArgumentParseResult;
+import org.incendo.cloud.parser.ArgumentParser;
+import org.incendo.cloud.parser.ParserDescriptor;
+import org.incendo.cloud.suggestion.Suggestion;
+import org.incendo.cloud.suggestion.SuggestionProvider;
 
-import java.util.List;
 import java.util.Optional;
-import java.util.Queue;
-import java.util.function.BiFunction;
+import java.util.concurrent.CompletableFuture;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 
@@ -22,39 +23,22 @@ import com.dfsek.terra.api.registry.key.RegistryKey;
 import com.dfsek.terra.api.util.reflection.TypeKey;
 
 
-public class RegistryArgument<T, R> extends CommandArgument<T, R> {
-    private RegistryArgument(
-        boolean required,
-        @NonNull String name,
-        Function<CommandContext<T>, Registry<R>> registryFunction,
-        TypeToken<R> typeToken,
-        @NonNull String defaultValue,
-        @Nullable BiFunction<CommandContext<T>, String, List<String>> suggestionsProvider,
-        @NonNull ArgumentDescription description
-    ) {
-        super(required,
-            name,
-            new RegistryArgumentParser<>(registryFunction),
-            defaultValue,
-            typeToken,
-            suggestionsProvider,
-            description);
-    }
+public class RegistryArgument {
 
     public static <T, R> Builder<T, R> builder(String name, Registry<R> registry) {
         return new Builder<>(name, registry);
     }
 
-    public static <T, R> CommandArgument<T, R> of(String name, Registry<R> registry) {
+    public static <T, R> CommandComponent<T> of(String name, Registry<R> registry) {
         return RegistryArgument.<T, R>builder(name, registry).build();
     }
 
-    public static <T, R> CommandArgument<T, R> optional(String name, Registry<R> registry) {
-        return RegistryArgument.<T, R>builder(name, registry).asOptional().build();
+    public static <T, R> CommandComponent<T> optional(String name, Registry<R> registry) {
+        return RegistryArgument.<T, R>builder(name, registry).optional().build();
     }
 
-    public static <T, R> CommandArgument<T, R> optional(String name, Registry<R> registry, String defaultKey) {
-        return RegistryArgument.<T, R>builder(name, registry).asOptionalWithDefault(defaultKey).build();
+    public static <T, R> CommandComponent<T> optional(String name, Registry<R> registry, DefaultValue<T, R> defaultKey) {
+        return RegistryArgument.<T, R>builder(name, registry).optional(defaultKey).build();
     }
 
     @SuppressWarnings("unchecked")
@@ -63,49 +47,36 @@ public class RegistryArgument<T, R> extends CommandArgument<T, R> {
         return new Builder<>(name, registryFunction, (TypeToken<R>) TypeToken.get(registryType.getType()));
     }
 
-    public static <T, R> CommandArgument<T, R> of(String name, Function<CommandContext<T>, Registry<R>> registryFunction,
-                                                  TypeKey<R> registryType) {
+    public static <T, R> CommandComponent<T> of(String name, Function<CommandContext<T>, Registry<R>> registryFunction,
+                                                TypeKey<R> registryType) {
         return RegistryArgument.<T, R>builder(name, registryFunction, registryType).build();
     }
 
-    public static <T, R> CommandArgument<T, R> optional(String name, Function<CommandContext<T>, Registry<R>> registryFunction,
-                                                        TypeKey<R> registryType) {
-        return RegistryArgument.builder(name, registryFunction, registryType).asOptional().build();
+    public static <T, R> CommandComponent<T> optional(String name, Function<CommandContext<T>, Registry<R>> registryFunction,
+                                                      TypeKey<R> registryType) {
+        return RegistryArgument.builder(name, registryFunction, registryType).optional().build();
     }
 
-    public static <T, R> CommandArgument<T, R> optional(String name, Function<CommandContext<T>, Registry<R>> registryFunction,
-                                                        TypeKey<R> registryType, String defaultKey) {
-        return RegistryArgument.builder(name, registryFunction, registryType).asOptionalWithDefault(defaultKey).build();
+    public static <T, R> CommandComponent<T> optional(String name, Function<CommandContext<T>, Registry<R>> registryFunction,
+                                                      TypeKey<R> registryType, DefaultValue<T, R> defaultKey) {
+        return RegistryArgument.builder(name, registryFunction, registryType).optional(defaultKey).build();
     }
 
-    public static final class Builder<T, R> extends CommandArgument.Builder<T, R> {
-        private final Function<CommandContext<T>, Registry<R>> registryFunction;
-        private final TypeToken<R> typeToken;
+    public static final class Builder<T, R> extends CommandComponent.Builder<T, R> {
 
         @SuppressWarnings("unchecked")
         private Builder(@NonNull String name, Registry<R> registry) {
-            super((TypeToken<R>) TypeToken.get(registry.getType().getType()), name);
-            this.registryFunction = commandContext -> registry;
-            this.typeToken = (TypeToken<R>) TypeToken.get(registry.getType().getType());
+            super();
+            this.name(name);
+            this.parser(ParserDescriptor.of(
+                new RegistryArgumentParser<>(commandContext -> registry),
+                (TypeToken<R>) TypeToken.get(registry.getType().getType())));
         }
 
         private Builder(@NonNull String name, Function<CommandContext<T>, Registry<R>> registryFunction, TypeToken<R> typeToken) {
-            super(typeToken, name);
-            this.typeToken = typeToken;
-            this.registryFunction = registryFunction;
-        }
-
-        @Override
-        public @NonNull RegistryArgument<T, R> build() {
-            return new RegistryArgument<>(
-                isRequired(),
-                getName(),
-                registryFunction,
-                typeToken,
-                getDefaultValue(),
-                getSuggestionsProvider(),
-                getDefaultDescription()
-            );
+            super();
+            this.name(name);
+            this.parser(ParserDescriptor.of(new RegistryArgumentParser<>(registryFunction), typeToken));
         }
     }
 
@@ -119,12 +90,12 @@ public class RegistryArgument<T, R> extends CommandArgument<T, R> {
 
         @Override
         public @NonNull ArgumentParseResult<@NonNull R> parse(@NonNull CommandContext<@NonNull T> commandContext,
-                                                              @NonNull Queue<@NonNull String> inputQueue) {
-            String input = inputQueue.remove();
-            String next = inputQueue.peek();
-            if(next != null && next.equals(":")) {
-                input += inputQueue.remove();
-                input += inputQueue.remove();
+                                                              @NonNull CommandInput commandInput) {
+            String input = commandInput.readString();
+            String next = commandInput.peekString();
+            if(next.equals(":")) {
+                input += commandInput.readString();
+                input += commandInput.readString();
             }
 
             Registry<R> registry = registryFunction.apply(commandContext);
@@ -146,8 +117,17 @@ public class RegistryArgument<T, R> extends CommandArgument<T, R> {
         }
 
         @Override
-        public @NonNull List<@NonNull String> suggestions(@NonNull CommandContext<T> commandContext, @NonNull String input) {
-            return registryFunction.apply(commandContext).keys().stream().map(RegistryKey::toString).sorted().collect(Collectors.toList());
+        public @NonNull SuggestionProvider<T> suggestionProvider() {
+            return new SuggestionProvider<>() {
+                @Override
+                public @NonNull CompletableFuture<? extends @NonNull Iterable<? extends @NonNull Suggestion>> suggestionsFuture(
+                    @NonNull CommandContext<T> context, @NonNull CommandInput input) {
+
+                    // TODO: Verify whether this is correct
+                    return CompletableFuture.completedFuture(registryFunction.apply(context).keys().stream().map(
+                        registryKey -> Suggestion.suggestion(registryKey.toString())).sorted().collect(Collectors.toList()));
+                }
+            };
         }
     }
 }

common/api/src/main/java/com/dfsek/terra/api/event/events/platform/CommandRegistrationEvent.java

@@ -1,10 +1,10 @@
 package com.dfsek.terra.api.event.events.platform;
 
-import cloud.commandframework.CommandManager;
-
 import com.dfsek.terra.api.command.CommandSender;
 import com.dfsek.terra.api.event.events.Event;
 
+import org.incendo.cloud.CommandManager;
+
 
 public class CommandRegistrationEvent implements Event {
     private final CommandManager<CommandSender> commandManager;

common/api/src/main/java/com/dfsek/terra/api/noise/DerivativeNoiseSampler.java

@@ -0,0 +1,42 @@
+package com.dfsek.terra.api.noise;
+
+/**
+ * A NoiseSampler which additionally may provide a 1st directional derivative
+ */
+public interface DerivativeNoiseSampler extends NoiseSampler {
+
+    static boolean isDifferentiable(NoiseSampler sampler) {
+        return sampler instanceof DerivativeNoiseSampler dSampler && dSampler.isDifferentiable();
+    }
+
+    /**
+     * Samplers may or may not be able to provide a derivative depending on what
+     * inputs they take, this method signals whether this is the case.
+     *
+     * @return If the noise sampler provides a derivative or not
+     */
+    boolean isDifferentiable();
+
+    /**
+     * Derivative return version of standard 2D noise evaluation
+     *
+     * @param seed
+     * @param x
+     * @param y
+     *
+     * @return 3 element array, in index order: noise value, partial x derivative, partial y derivative
+     */
+    double[] noised(long seed, double x, double y);
+
+    /**
+     * Derivative return version of standard 3D noise evaluation
+     *
+     * @param seed
+     * @param x
+     * @param y
+     * @param z
+     *
+     * @return 4 element array, in index order: noise value, partial x derivative, partial y derivative, partial z derivative
+     */
+    double[] noised(long seed, double x, double y, double z);
+}

common/api/src/main/java/com/dfsek/terra/api/util/reflection/ReflectionUtil.java

@@ -8,6 +8,7 @@
 package com.dfsek.terra.api.util.reflection;
 
 import org.jetbrains.annotations.NotNull;
+import sun.misc.Unsafe;
 
 import java.lang.annotation.Annotation;
 import java.lang.reflect.AnnotatedElement;
@@ -26,6 +27,18 @@ import java.util.stream.Stream;
 
 
 public final class ReflectionUtil {
+    private static final Unsafe UNSAFE;
+
+    static {
+        try {
+            final Field unsafeField = Unsafe.class.getDeclaredField("theUnsafe");
+            unsafeField.setAccessible(true);
+            UNSAFE = (Unsafe) unsafeField.get(null);
+        } catch(NoSuchFieldException | IllegalAccessException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
     public static Field[] getFields(@NotNull Class<?> type) {
         Field[] result = type.getDeclaredFields();
         Class<?> parentClass = type.getSuperclass();
@@ -35,6 +48,14 @@ public final class ReflectionUtil {
         return result;
     }
 
+    public static void setFinalField(Object obj, String fieldName, Object value) throws NoSuchFieldException {
+        Field field = obj.getClass().getDeclaredField(fieldName);
+        field.setAccessible(true);
+        long fieldOffset = UNSAFE.objectFieldOffset(field);
+
+        UNSAFE.putObject(obj, fieldOffset, value);
+    }
+
     public static Method[] getMethods(@NotNull Class<?> type) {
         Method[] result = type.getDeclaredMethods();
         Class<?> parentClass = type.getSuperclass();

common/api/src/main/java/com/dfsek/terra/api/world/biome/generation/BiomeProvider.java

@@ -7,6 +7,8 @@
 
 package com.dfsek.terra.api.world.biome.generation;
 
+import com.dfsek.terra.api.Platform;
+
 import org.jetbrains.annotations.Contract;
 
 import java.util.Optional;
@@ -91,11 +93,11 @@ public interface BiomeProvider {
         return StreamSupport.stream(getBiomes().spliterator(), false);
     }
 
-    default CachingBiomeProvider caching() {
+    default CachingBiomeProvider caching(Platform platform) {
         if(this instanceof CachingBiomeProvider cachingBiomeProvider) {
             return cachingBiomeProvider;
         }
-        return new CachingBiomeProvider(this);
+        return new CachingBiomeProvider(this, platform.getGenerationThreads());
     }
 
 

common/api/src/main/java/com/dfsek/terra/api/world/biome/generation/CachingBiomeProvider.java

@@ -21,19 +21,20 @@ public class CachingBiomeProvider implements BiomeProvider, Handle {
     private final LoadingCache<SeededVector3, Biome> cache;
     private final LoadingCache<SeededVector2, Optional<Biome>> baseCache;
 
-    protected CachingBiomeProvider(BiomeProvider delegate) {
+    protected CachingBiomeProvider(BiomeProvider delegate, int generationThreads) {
         this.delegate = delegate;
         this.res = delegate.resolution();
+        int size = generationThreads * 98304;
         this.cache = Caffeine
             .newBuilder()
             .scheduler(Scheduler.disabledScheduler())
-            .initialCapacity(98304)
-            .maximumSize(98304) // 1 full chunk (high res)
+            .initialCapacity(size)
+            .maximumSize(size) // 1 full chunk (high res)
             .build(vec -> delegate.getBiome(vec.x * res, vec.y * res, vec.z * res, vec.seed));
 
         this.baseCache = Caffeine
             .newBuilder()
-            .maximumSize(256) // 1 full chunk (high res)
+            .maximumSize(256L * generationThreads) // 1 full chunk (high res)
             .build(vec -> delegate.getBaseBiome(vec.x * res, vec.z * res, vec.seed));
 
     }
@@ -77,7 +78,7 @@ public class CachingBiomeProvider implements BiomeProvider, Handle {
             int code = x;
             code = 31 * code + y;
             code = 31 * code + z;
-            return 31 * code + ((int) (seed ^ (seed >>> 32)));
+            return 31 * code + (Long.hashCode(seed));
         }
     }
 
@@ -95,7 +96,7 @@ public class CachingBiomeProvider implements BiomeProvider, Handle {
         public int hashCode() {
             int code = x;
             code = 31 * code + z;
-            return 31 * code + ((int) (seed ^ (seed >>> 32)));
+            return 31 * code + (Long.hashCode(seed));
         }
     }
 }

common/implementation/base/src/main/java/com/dfsek/terra/AbstractPlatform.java

@@ -310,6 +310,24 @@ public abstract class AbstractPlatform implements Platform {
         }
     }
 
+    public static int getGenerationThreadsWithReflection(String className, String fieldName, String project) {
+        try {
+            Class aClass = Class.forName(className);
+            int threads = aClass.getField(fieldName).getInt(null);
+            logger.info("{} found, setting {} generation threads.", project, threads);
+            return threads;
+        } catch(ClassNotFoundException e) {
+            logger.info("{} not found.", project);
+        } catch(NoSuchFieldException e) {
+            logger.warn("{} found, but {} field not found this probably means {0} has changed its code and " +
+                        "Terra has not updated to reflect that.", project, fieldName);
+        } catch(IllegalAccessException e) {
+            logger.error("Failed to access {} field in {}, assuming 1 generation thread.", fieldName, project, e);
+        }
+        return 0;
+
+    }
+
     @Override
     public void register(TypeRegistry registry) {
         loaders.register(registry);
@@ -339,4 +357,9 @@ public abstract class AbstractPlatform implements Platform {
     public @NotNull Profiler getProfiler() {
         return profiler;
     }
+
+    @Override
+    public int getGenerationThreads() {
+        return 1;
+    }
 }

common/implementation/base/src/main/java/com/dfsek/terra/config/pack/ConfigPackImpl.java

@@ -26,6 +26,33 @@ import com.dfsek.tectonic.api.loader.AbstractConfigLoader;
 import com.dfsek.tectonic.api.loader.ConfigLoader;
 import com.dfsek.tectonic.api.loader.type.TypeLoader;
 import com.dfsek.tectonic.yaml.YamlConfiguration;
+import com.google.common.collect.ListMultimap;
+import com.google.common.collect.Multimaps;
+import org.jetbrains.annotations.NotNull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.function.Supplier;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
 
 import com.dfsek.terra.api.Platform;
 import com.dfsek.terra.api.addon.BaseAddon;
@@ -56,28 +83,16 @@ import com.dfsek.terra.config.fileloaders.FolderLoader;
 import com.dfsek.terra.config.fileloaders.ZIPLoader;
 import com.dfsek.terra.config.loaders.GenericTemplateSupplierLoader;
 import com.dfsek.terra.config.loaders.config.BufferedImageLoader;
-import com.dfsek.terra.config.preprocessor.*;
+import com.dfsek.terra.config.preprocessor.MetaListLikePreprocessor;
+import com.dfsek.terra.config.preprocessor.MetaMapPreprocessor;
+import com.dfsek.terra.config.preprocessor.MetaNumberPreprocessor;
+import com.dfsek.terra.config.preprocessor.MetaStringPreprocessor;
+import com.dfsek.terra.config.preprocessor.MetaValuePreprocessor;
 import com.dfsek.terra.config.prototype.ProtoConfig;
 import com.dfsek.terra.registry.CheckedRegistryImpl;
 import com.dfsek.terra.registry.OpenRegistryImpl;
 import com.dfsek.terra.registry.ShortcutHolder;
 
-import com.google.common.collect.ListMultimap;
-import com.google.common.collect.Multimaps;
-import org.jetbrains.annotations.NotNull;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.awt.image.BufferedImage;
-import java.io.*;
-import java.lang.reflect.ParameterizedType;
-import java.lang.reflect.Type;
-import java.util.*;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.function.Supplier;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-
 
 /**
  * Represents a Terra configuration pack.
@@ -217,7 +232,7 @@ public class ConfigPackImpl implements ConfigPack {
         ConfigPackPostTemplate packPostTemplate = new ConfigPackPostTemplate();
         selfLoader.load(packPostTemplate, packManifest);
         seededBiomeProvider =
-            template.getBiomeCache() ? packPostTemplate.getProviderBuilder().caching() : packPostTemplate.getProviderBuilder();
+            template.getBiomeCache() ? packPostTemplate.getProviderBuilder().caching(platform) : packPostTemplate.getProviderBuilder();
         checkDeadEntries();
     }
 

common/implementation/base/src/main/java/com/dfsek/terra/config/preprocessor/MetaNumberPreprocessor.java

@@ -24,14 +24,15 @@ import com.dfsek.tectonic.api.depth.DepthTracker;
 import com.dfsek.tectonic.api.exception.LoadException;
 import com.dfsek.tectonic.api.loader.ConfigLoader;
 import com.dfsek.tectonic.api.preprocessor.Result;
+
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.util.reflection.TypeKey;
+
 import org.jetbrains.annotations.NotNull;
 
 import java.lang.reflect.AnnotatedType;
 import java.util.Map;
 
-import com.dfsek.terra.api.config.meta.Meta;
-import com.dfsek.terra.api.util.reflection.TypeKey;
-
 
 public class MetaNumberPreprocessor extends MetaPreprocessor<Meta> {
     public static final TypeKey<String> META_STRING_KEY = new TypeKey<@Meta String>() {

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip
+distributionSha256Sum=1541fa36599e12857140465f3c91a97409b4512501c26f9631fb113e392c5bd1
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -145,7 +145,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
         # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
@@ -153,7 +153,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
       '' | soft) :;; #(
       *)
         # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -202,11 +202,11 @@ fi
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \

gradlew.bat

@@ -43,11 +43,11 @@ set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
 if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -57,11 +57,11 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 

platforms/bukkit/build.gradle.kts

@@ -2,27 +2,15 @@ plugins {
     id("xyz.jpenilla.run-paper") version Versions.Bukkit.runPaper
 }
 
-repositories {
-    maven("https://s01.oss.sonatype.org/content/repositories/snapshots/") {
-        name = "Sonatype"
-    }
-}
-
 dependencies {
     shaded(project(":platforms:bukkit:common"))
-    shaded(project(":platforms:bukkit:nms:v1_18_R2", configuration = "reobf"))
-    shaded(project(":platforms:bukkit:nms:v1_19_R1", configuration = "reobf"))
-    shaded(project(":platforms:bukkit:nms:v1_19_R2", configuration = "reobf"))
-    shaded(project(":platforms:bukkit:nms:v1_19_R3", configuration = "reobf"))
-    shaded(project(":platforms:bukkit:nms:v1_20_R1", configuration = "reobf"))
-    shaded(project(":platforms:bukkit:nms:v1_20_R2", configuration = "reobf"))
+    shaded(project(":platforms:bukkit:nms:v1_21", configuration = "reobf"))
     shaded("xyz.jpenilla", "reflection-remapper", Versions.Bukkit.reflectionRemapper)
 }
 
 tasks {
     shadowJar {
         relocate("io.papermc.lib", "com.dfsek.terra.lib.paperlib")
-        relocate("com.tcoded.folialib", "com.dfsek.terra.lib.folialib")
         relocate("com.google.common", "com.dfsek.terra.lib.google.common")
         relocate("org.apache.logging.slf4j", "com.dfsek.terra.lib.slf4j-over-log4j")
         exclude("org/slf4j/**")

platforms/bukkit/common/build.gradle.kts

@@ -8,10 +8,8 @@ dependencies {
     compileOnly("io.papermc.paper", "paper-api", Versions.Bukkit.paper)
 
     shadedApi("io.papermc", "paperlib", Versions.Bukkit.paperLib)
-    // TODO: 2023-11-08 When we drop support for 1.18 and 1.19, we can remove FoliaLib and instead use `RegionScheduler`,
-    //       AsyncScheduler, or GlobalRegionScheduler.
-    shadedApi("com.tcoded", "FoliaLib", Versions.Bukkit.foliaLib)
+
     shadedApi("com.google.guava", "guava", Versions.Libraries.Internal.guava)
 
-    shadedApi("cloud.commandframework", "cloud-paper", Versions.Libraries.cloud)
+    shadedApi("org.incendo", "cloud-paper", Versions.Libraries.cloudPaper)
 }

platforms/bukkit/common/src/main/java/com/dfsek/terra/bukkit/PlatformImpl.java

@@ -51,7 +51,13 @@ public class PlatformImpl extends AbstractPlatform {
 
     private final TerraBukkitPlugin plugin;
 
+    private int generationThreads;
+
     public PlatformImpl(TerraBukkitPlugin plugin) {
+        generationThreads = getGenerationThreadsWithReflection("ca.spottedleaf.moonrise.common.util.MoonriseCommon", "WORKER_THREADS", "Moonrise");
+        if (generationThreads == 0) {
+            generationThreads = 1;
+        }
         this.plugin = plugin;
         load();
     }
@@ -84,8 +90,8 @@ public class PlatformImpl extends AbstractPlatform {
     }
 
     @Override
-    public void runPossiblyUnsafeTask(@NotNull Runnable task) {
-        plugin.getFoliaLib().getImpl().runAsync(task);
+    public void runPossiblyUnsafeTask(@NotNull Runnable runnable) {
+        plugin.getGlobalRegionScheduler().run(plugin, task -> runnable.run());
     }
 
     @Override
@@ -108,6 +114,11 @@ public class PlatformImpl extends AbstractPlatform {
         return itemHandle;
     }
 
+    @Override
+    public int getGenerationThreads() {
+        return generationThreads;
+    }
+
     @Override
     public void register(TypeRegistry registry) {
         super.register(registry);

platforms/bukkit/common/src/main/java/com/dfsek/terra/bukkit/TerraBukkitPlugin.java

@@ -17,14 +17,16 @@
 
 package com.dfsek.terra.bukkit;
 
-import cloud.commandframework.brigadier.CloudBrigadierManager;
-import cloud.commandframework.bukkit.CloudBukkitCapabilities;
-import cloud.commandframework.execution.CommandExecutionCoordinator;
-import cloud.commandframework.paper.PaperCommandManager;
-import com.tcoded.folialib.FoliaLib;
+import io.papermc.paper.threadedregions.scheduler.AsyncScheduler;
+import io.papermc.paper.threadedregions.scheduler.GlobalRegionScheduler;
 import org.bukkit.Bukkit;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.plugin.java.JavaPlugin;
+import org.incendo.cloud.SenderMapper;
+import org.incendo.cloud.brigadier.CloudBrigadierManager;
+import org.incendo.cloud.bukkit.CloudBukkitCapabilities;
+import org.incendo.cloud.execution.ExecutionCoordinator;
+import org.incendo.cloud.paper.LegacyPaperCommandManager;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
@@ -32,6 +34,7 @@ import org.slf4j.LoggerFactory;
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.concurrent.TimeUnit;
 
 import com.dfsek.terra.api.command.CommandSender;
 import com.dfsek.terra.api.config.ConfigPack;
@@ -51,7 +54,9 @@ public class TerraBukkitPlugin extends JavaPlugin {
     private final PlatformImpl platform = new PlatformImpl(this);
     private final Map<String, com.dfsek.terra.api.world.chunk.generation.ChunkGenerator> generatorMap = new HashMap<>();
 
-    private final FoliaLib foliaLib = new FoliaLib(this);
+    private AsyncScheduler asyncScheduler = this.getServer().getAsyncScheduler();
+
+    private GlobalRegionScheduler globalRegionScheduler = this.getServer().getGlobalRegionScheduler();
 
     @Override
     public void onEnable() {
@@ -61,16 +66,20 @@ public class TerraBukkitPlugin extends JavaPlugin {
 
         platform.getEventManager().callEvent(new PlatformInitializationEvent());
 
+        if(!Initializer.init(platform)) {
+            Bukkit.getPluginManager().disablePlugin(this);
+            return;
+        }
 
         try {
-            PaperCommandManager<CommandSender> commandManager = getCommandSenderPaperCommandManager();
+            LegacyPaperCommandManager<CommandSender> commandManager = getCommandSenderPaperCommandManager();
 
             platform.getEventManager().callEvent(new CommandRegistrationEvent(commandManager));
 
         } catch(Exception e) { // This should never happen.
             logger.error("""
                          TERRA HAS BEEN DISABLED
-                                                  
+                         
                          Errors occurred while registering commands.
                          Please report this to Terra.
                          """.strip(), e);
@@ -80,27 +89,29 @@ public class TerraBukkitPlugin extends JavaPlugin {
 
         Bukkit.getPluginManager().registerEvents(new CommonListener(), this); // Register master event listener
         PaperUtil.checkPaper(this);
-
-        Initializer.init(platform);
     }
 
     @NotNull
-    private PaperCommandManager<CommandSender> getCommandSenderPaperCommandManager() throws Exception {
-        PaperCommandManager<CommandSender> commandManager = new PaperCommandManager<>(this,
-            CommandExecutionCoordinator.simpleCoordinator(),
-            BukkitAdapter::adapt,
-            BukkitAdapter::adapt);
+    private LegacyPaperCommandManager<CommandSender> getCommandSenderPaperCommandManager() throws Exception {
+        // TODO: Update to PaperCommandManager
+        LegacyPaperCommandManager<CommandSender> commandManager = new LegacyPaperCommandManager<>(
+            this,
+            ExecutionCoordinator.simpleCoordinator(),
+            SenderMapper.create(
+                BukkitAdapter::adapt,
+                BukkitAdapter::adapt
+            ));
+
         if(commandManager.hasCapability(CloudBukkitCapabilities.NATIVE_BRIGADIER)) {
             commandManager.registerBrigadier();
             final CloudBrigadierManager<?, ?> brigManager = commandManager.brigadierManager();
             if(brigManager != null) {
                 brigManager.setNativeNumberSuggestions(false);
             }
-        }
-
-        if(commandManager.hasCapability(CloudBukkitCapabilities.ASYNCHRONOUS_COMPLETION)) {
+        } else if(commandManager.hasCapability(CloudBukkitCapabilities.ASYNCHRONOUS_COMPLETION)) {
             commandManager.registerAsynchronousCompletions();
         }
+
         return commandManager;
     }
 
@@ -116,6 +127,9 @@ public class TerraBukkitPlugin extends JavaPlugin {
         if(!VersionUtil.getSpigotVersionInfo().isSpigot())
             logger.error("YOU ARE RUNNING A CRAFTBUKKIT OR BUKKIT SERVER. PLEASE UPGRADE TO PAPER.");
 
+        if(!VersionUtil.getSpigotVersionInfo().isPaper())
+            logger.error("YOU ARE RUNNING A SPIGOT SERVER. PLEASE UPGRADE TO PAPER.");
+
         if(VersionUtil.getSpigotVersionInfo().isMohist()) {
             if(System.getProperty("IKnowMohistCausesLotsOfIssuesButIWillUseItAnyways") == null) {
                 Runnable runnable = () -> { // scary big block of text
@@ -159,7 +173,7 @@ public class TerraBukkitPlugin extends JavaPlugin {
                                  """.strip());
                 };
                 runnable.run();
-                foliaLib.getImpl().runLaterAsync(runnable, 200L);
+                asyncScheduler.runDelayed(this, task -> runnable.run(), 200L, TimeUnit.SECONDS);
                 // Bukkit.shutdown(); // we're not *that* evil
                 Bukkit.getPluginManager().disablePlugin(this);
                 return false;
@@ -167,7 +181,7 @@ public class TerraBukkitPlugin extends JavaPlugin {
                 logger.warn("""
                             You are using Mohist, so we will not give you any support for issues that may arise.
                             Since you enabled the "IKnowMohistCausesLotsOfIssuesButIWillUseItAnyways" flag, we won't disable Terra. But be warned.
-                                                        
+                            
                             > I felt a great disturbance in the JVM, as if millions of plugins suddenly cried out in stack traces and were suddenly silenced.
                             > I fear something terrible has happened.
                             > - Astrash
@@ -180,6 +194,7 @@ public class TerraBukkitPlugin extends JavaPlugin {
     @Override
     public @Nullable
     ChunkGenerator getDefaultWorldGenerator(@NotNull String worldName, String id) {
+        if(id == null || id.trim().equals("")) { return null; }
         return new BukkitChunkGeneratorWrapper(generatorMap.computeIfAbsent(worldName, name -> {
             ConfigPack pack = platform.getConfigRegistry().getByID(id).orElseThrow(
                 () -> new IllegalArgumentException("No such config pack \"" + id + "\""));
@@ -187,7 +202,11 @@ public class TerraBukkitPlugin extends JavaPlugin {
         }), platform.getRawConfigRegistry().getByID(id).orElseThrow(), platform.getWorldHandle().air());
     }
 
-    public FoliaLib getFoliaLib() {
-        return foliaLib;
+    public AsyncScheduler getAsyncScheduler() {
+        return asyncScheduler;
+    }
+
+    public GlobalRegionScheduler getGlobalRegionScheduler() {
+        return globalRegionScheduler;
     }
 }

platforms/bukkit/common/src/main/java/com/dfsek/terra/bukkit/handles/BukkitWorldHandle.java

@@ -20,17 +20,18 @@ package com.dfsek.terra.bukkit.handles;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.jetbrains.annotations.NotNull;
-
-import java.util.Locale;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import com.dfsek.terra.api.block.state.BlockState;
 import com.dfsek.terra.api.entity.EntityType;
 import com.dfsek.terra.api.handle.WorldHandle;
+import com.dfsek.terra.bukkit.util.BukkitUtils;
 import com.dfsek.terra.bukkit.world.block.data.BukkitBlockState;
-import com.dfsek.terra.bukkit.world.entity.BukkitEntityType;
 
 
 public class BukkitWorldHandle implements WorldHandle {
+    private static final Logger logger = LoggerFactory.getLogger(BukkitWorldHandle.class);
     private final BlockState air;
 
     public BukkitWorldHandle() {
@@ -39,6 +40,13 @@ public class BukkitWorldHandle implements WorldHandle {
 
     @Override
     public synchronized @NotNull BlockState createBlockState(@NotNull String data) {
+        if(data.equals("minecraft:grass")) { //TODO: remove in 7.0
+            data = "minecraft:short_grass";
+            logger.warn(
+                "Translating minecraft:grass to minecraft:short_grass. In 1.20.3 minecraft:grass was renamed to minecraft:short_grass" +
+                ". You are advised to perform this rename in your config backs as this translation will be removed in the next major " +
+                "version of Terra.");
+        }
         org.bukkit.block.data.BlockData bukkitData = Bukkit.createBlockData(
             data); // somehow bukkit managed to make this not thread safe! :)
         return BukkitBlockState.newInstance(bukkitData);
@@ -51,14 +59,6 @@ public class BukkitWorldHandle implements WorldHandle {
 
     @Override
     public @NotNull EntityType getEntity(@NotNull String id) {
-        if(!id.startsWith("minecraft:")) throw new IllegalArgumentException("Invalid entity identifier " + id);
-        String entityID = id.toUpperCase(Locale.ROOT).substring(10);
-
-        return new BukkitEntityType(switch(entityID) {
-            case "END_CRYSTAL" -> org.bukkit.entity.EntityType.ENDER_CRYSTAL;
-            case "ENDER_CRYSTAL" -> throw new IllegalArgumentException(
-                "Invalid entity identifier " + id); // make sure this issue can't happen the other way around.
-            default -> org.bukkit.entity.EntityType.valueOf(entityID);
-        });
+        return BukkitUtils.getEntityType(id);
     }
 }

platforms/bukkit/common/src/main/java/com/dfsek/terra/bukkit/nms/Initializer.java

@@ -1,20 +1,25 @@
 package com.dfsek.terra.bukkit.nms;
 
-import org.bukkit.Bukkit;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.dfsek.terra.bukkit.PlatformImpl;
+import com.dfsek.terra.bukkit.util.VersionUtil;
 
 
 public interface Initializer {
-    String NMS = Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3];
+    String NMS = VersionUtil.getMinecraftVersionInfo().toString().replace(".", "_");
     String TERRA_PACKAGE = Initializer.class.getPackageName();
 
-    static void init(PlatformImpl platform) {
+    static boolean init(PlatformImpl platform) {
         Logger logger = LoggerFactory.getLogger(Initializer.class);
         try {
-            Class<?> initializerClass = Class.forName(TERRA_PACKAGE + "." + NMS + ".NMSInitializer");
+            String packageVersion = NMS;
+            if(NMS.equals("v1_21_1")) {
+                packageVersion = "v1_21";
+            }
+
+            Class<?> initializerClass = Class.forName(TERRA_PACKAGE + "." + packageVersion + ".NMSInitializer");
             try {
                 Initializer initializer = (Initializer) initializerClass.getConstructor().newInstance();
                 initializer.initialize(platform);
@@ -24,16 +29,27 @@ public interface Initializer {
         } catch(ClassNotFoundException e) {
             logger.error("NMS bindings for version {} do not exist. Support for this version is limited.", NMS);
             logger.error("This is usually due to running Terra on an unsupported Minecraft version.");
-            logger.error("");
-            logger.error("");
-            for(int i = 0; i < 20; i++) {
-                logger.error("PROCEEDING WITH AN EXISTING TERRA WORLD WILL RESULT IN CORRUPTION!!!");
+            String bypassKey = "IKnowThereAreNoNMSBindingsFor" + NMS + "ButIWillProceedAnyway";
+            if(System.getProperty(bypassKey) == null) {
+                logger.error("Because of this **TERRA HAS BEEN DISABLED**.");
+                logger.error("Do not come ask us why it is not working.");
+                logger.error("If you wish to proceed anyways, you can add the JVM System Property \"{}\" to enable the plugin.", bypassKey);
+                return false;
+            } else {
+                logger.error("");
+                logger.error("");
+                for(int i = 0; i < 20; i++) {
+                    logger.error("PROCEEDING WITH AN EXISTING TERRA WORLD WILL RESULT IN CORRUPTION!!!");
+                }
+                logger.error("");
+                logger.error("");
+                logger.error("NMS bindings for version {} do not exist. Support for this version is limited.", NMS);
+                logger.error("This is usually due to running Terra on an unsupported Minecraft version.");
+                logger.error("We will not give you any support for issues that may arise.");
+                logger.error("Since you enabled the \"{}\" flag, we won't disable Terra. But be warned.", bypassKey);
             }
-            logger.error("");
-            logger.error("");
-            logger.error("NMS bindings for version {} do not exist. Support for this version is limited.", NMS);
-            logger.error("This is usually due to running Terra on an unsupported Minecraft version.");
         }
+        return true;
     }
 
     void initialize(PlatformImpl plugin);

platforms/bukkit/common/src/main/java/com/dfsek/terra/bukkit/util/BukkitUtils.java

@@ -2,11 +2,40 @@ package com.dfsek.terra.bukkit.util;
 
 import org.bukkit.Material;
 import org.bukkit.block.data.BlockData;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Locale;
+
+import com.dfsek.terra.api.entity.EntityType;
+import com.dfsek.terra.bukkit.world.entity.BukkitEntityType;
 
 
 public class BukkitUtils {
+    private static final Logger logger = LoggerFactory.getLogger(BukkitUtils.class);
+
     public static boolean isLiquid(BlockData blockState) {
         Material material = blockState.getMaterial();
         return material == Material.WATER || material == Material.LAVA;
     }
+
+    public static EntityType getEntityType(String id) {
+        if(!id.contains(":")) { //TODO: remove in 7.0
+            String newid = "minecraft:" + id.toLowerCase();
+            ;
+            logger.warn(
+                "Translating " + id + " to " + newid + ". In 1.20.3 entity parsing was reworked" +
+                ". You are advised to perform this rename in your config backs as this translation will be removed in the next major " +
+                "version of Terra.");
+        }
+        if(!id.startsWith("minecraft:")) throw new IllegalArgumentException("Invalid entity identifier " + id);
+        String entityID = id.toUpperCase(Locale.ROOT).substring(10);
+
+        return new BukkitEntityType(switch(entityID) {
+            case "END_CRYSTAL" -> org.bukkit.entity.EntityType.END_CRYSTAL;
+            case "ENDER_CRYSTAL" -> throw new IllegalArgumentException(
+                "Invalid entity identifier " + id); // make sure this issue can't happen the other way around.
+            default -> org.bukkit.entity.EntityType.valueOf(entityID);
+        });
+    }
 }

platforms/bukkit/common/src/main/java/com/dfsek/terra/bukkit/util/PaperUtil.java

@@ -19,6 +19,8 @@ package com.dfsek.terra.bukkit.util;
 
 import io.papermc.lib.PaperLib;
 
+import java.util.concurrent.TimeUnit;
+
 import com.dfsek.terra.bukkit.TerraBukkitPlugin;
 
 import static io.papermc.lib.PaperLib.suggestPaper;
@@ -26,10 +28,10 @@ import static io.papermc.lib.PaperLib.suggestPaper;
 
 public final class PaperUtil {
     public static void checkPaper(TerraBukkitPlugin plugin) {
-        plugin.getFoliaLib().getImpl().runLaterAsync(() -> {
+        plugin.getAsyncScheduler().runDelayed(plugin, task -> {
             if(!PaperLib.isPaper()) {
                 suggestPaper(plugin);
             }
-        }, 100L);
+        }, 100L, TimeUnit.SECONDS);
     }
 }

platforms/bukkit/common/src/main/java/com/dfsek/terra/bukkit/util/VersionUtil.java

@@ -77,13 +77,13 @@ public final class VersionUtil {
     public static final class MinecraftVersionInfo {
         private static final Logger logger = LoggerFactory.getLogger(MinecraftVersionInfo.class);
 
-        private static final Pattern VERSION_PATTERN = Pattern.compile("v?(\\d+)_(\\d+)_R(\\d+)");
+        private static final Pattern VERSION_PATTERN = Pattern.compile("(\\d+)\\.(\\d+)(?:\\.(\\d+))?");
         private final int major;
         private final int minor;
         private final int patch;
 
         private MinecraftVersionInfo() {
-            this(Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3]);
+            this(Bukkit.getServer().getBukkitVersion().split("-")[0]);
         }
 
         private MinecraftVersionInfo(int major, int minor, int patch) {
@@ -97,7 +97,7 @@ public final class VersionUtil {
             if(versionMatcher.find()) {
                 major = Integer.parseInt(versionMatcher.group(1));
                 minor = Integer.parseInt(versionMatcher.group(2));
-                patch = Integer.parseInt(versionMatcher.group(3));
+                patch = versionMatcher.group(3) != null ? Integer.parseInt(versionMatcher.group(3)) : -1;
             } else {
                 logger.warn("Error while parsing minecraft version info. Continuing launch, but setting all versions to -1.");
 
@@ -112,7 +112,11 @@ public final class VersionUtil {
             if(major == -1 && minor == -1 && patch == -1)
                 return "Unknown";
 
-            return String.format("v%d.%d.%d", major, minor, patch);
+            if(patch >= 0) {
+                return String.format("v%d.%d.%d", major, minor, patch);
+            } else {
+                return String.format("v%d.%d", major, minor);
+            }
         }
 
         public int getMajor() {