Merge pull request #323 from PolyhedralDev/ver/6.1.2

Reimplement Cloud and update Bukkit implementation to 1.19 with Paperweight
bump versions
2026-05-20 08:40:26 +00:00 · 2022-06-12 22:26:43 -07:00 · 2022-06-12 22:22:50 -07:00 · 2022-06-12 22:20:47 -07:00 · 2022-06-12 21:57:47 -07:00 · 2022-06-12 21:57:19 -07:00
1081 changed files with 25021 additions and 18405 deletions
@@ -37,9 +37,12 @@ assignees: ""
 -->

 - [ ] I have checked that I am on the latest version of Terra.
- [ ] I have searched the github issue tracker for similar issues, including closed ones.
- [ ] I have made sure that this is not a bug with another mod or plugin, and it is Terra that is causing the issue.
- [ ] I have checked that this is an issue with Terra and not an issue with the pack I am using.
+- [ ] I have searched the github issue tracker for similar issues, including
+  closed ones.
+- [ ] I have made sure that this is not a bug with another mod or plugin, and it
+  is Terra that is causing the issue.
+- [ ] I have checked that this is an issue with Terra and not an issue with the
+  pack I am using.
  <!-- If this is an issue with the default Terra pack, please open an issue on the pack repo: https://github.com/PolyhedralDev/TerraDefaultConfig/issues/new -->
 - [ ] I have attached a copy of the `latest.log` file
 - [ ] I have filled out and provided all the appropriate information.
@@ -31,9 +31,11 @@ assignees: ""
 -->

 - [ ] I have checked that I am on the latest version of Terra.
- [ ] I have searched github for similar features requests, including closed ones, and found none.
+- [ ] I have searched github for similar features requests, including closed
+  ones, and found none.
 - [ ] I believe this is within the scope of Terra.
- [ ] This feature request is for *all* of Terra, and isn't something that should be implemented by a pack or addon.
+- [ ] This feature request is for *all* of Terra, and isn't something that
+  should be implemented by a pack or addon.

 ## Feature Description

@@ -1,6 +1,7 @@
 ---
 name: "Other Issue"
-about: "Use this template if your issue doesn't accurately fit into any of the other categories."
+about: "Use this template if your issue doesn't accurately fit into any of the
+other categories."
 title: ""
 labels: "Type: Question, Status: Pending"
 assignees: ""
@@ -33,9 +33,11 @@

 <!-- In order to be accepted, your changes must be under the GPLv3 license. Please check one of the following: -->

- [ ] I am the original author of this code, and I am willing to release it under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html).
- [ ] I am not the original author of this code, but it is in public domain or released
-  under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) or a compatible license.
+- [ ] I am the original author of this code, and I am willing to release it
+  under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html).
+- [ ] I am not the original author of this code, but it is in public domain or
+  released under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) or a
+  compatible license.
    <!--
      Please provide reliable evidence of this.
      NOTE: for compatible licenses, you must make sure to add the included license somewhere in the program, if so required.
@@ -82,7 +84,8 @@

 #### Compatiblity

- [ ] Breaking change <!-- A fix, or a feature, that breaks some previous functionality to Terra. -->
+- [ ] Breaking
+  change <!-- A fix, or a feature, that breaks some previous functionality to Terra. -->
 - [ ] Non-Breaking change.
    <!--
        A change which does not break *any* previous functionality of Terra.
@@ -94,8 +97,9 @@

 #### Contribution Guidelines.

- [ ] I have read the [`CONTRIBUTING.md`](https://github.com/PolyhedralDev/Terra/blob/master/CONTRIBUTING.md) document in the root of the
-  git repository.
+- [ ] I have read
+  the [`CONTRIBUTING.md`](https://github.com/PolyhedralDev/Terra/blob/master/CONTRIBUTING.md)
+  document in the root of the git repository.
 - [ ] My code follows the code style for this
  project. <!-- There is an included `.editorconfig` file in the base of the repo. Please use a plugin for your IDE of choice that follows those settings. -->

@@ -111,4 +115,4 @@
    <!--
        If it only introduces small changes, you don't need to add tests.
        But if you add big changes, you should probably at least write *some* testing, where applicable.
-    -->
+    -->
@@ -65,6 +65,8 @@ hs_err_pid*
 .idea/**/dictionaries
 .idea/**/shelf

+.idea/
+
 # Generated files
 .idea/**/contentModel.xml

@@ -127,17 +129,120 @@ fabric.properties
 # Android studio 3.1+ serialized cache file
 .idea/caches/build_file_checksums.ser

-# Ignore Gradle build output directory
-build
-/target/
+### Windows template
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db

-.idea/sonarlint/**
-.idea/codeStyles/**
-.idea/**.xml
-.idea/modules/**.iml
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+### macOS template
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Linux template
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### Application
+# Archive love files
+*.log.gz
+
+# binary files
+*.bin
+
+# Database files
+*.db
+
+# Cache files
+*.meta
+*.data
+
+### JEnv template
+# JEnv local Java version configuration file
+.java-version
+
+# Used by previous versions of JEnv
+.jenv-version
+
+### VisualStudioCode template
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+# Local History for Visual Studio Code
+.history/
+
+### NetBeans template
+**/nbproject/private/
+**/nbproject/Makefile-*.mk
+**/nbproject/Package-*.bash
+build/
+nbbuild/
+dist/
+nbdist/
+.nb-gradle/
+
+###
+**/target/

-!lib/*.jar
 /run/
-idea/**

-testDir/
+**/testDir/
@@ -27,8 +27,8 @@ for everyone. We do not tolerate harassment of participants in any form.
 ## When and How to Use These Guidelines

 This code of conduct applies to all Terra community spaces, both online and off.
-This applies to the github discussion tab, the 
-[Polyhedral Development community discord server](https://discord.gg/PXUEbbF), 
+This applies to the github discussion tab, the
+[Polyhedral Development community discord server](https://discord.gg/PXUEbbF),
 and any other Terra community. In addition, we may choose to invoke them in
 instances of harassment outside the Terra communities, and we will punish the
 responsible individuals appropriately. We will not tolerate harassment in any
@@ -58,8 +58,8 @@ listen carefully, apologize sincerely, and correct the behavior going forward.
 Any member of the Terra community should always be open to new ideas and must
 always be open to the possibility of being wrong. Nobody can always be right,
 and we are only human; we are
-[fallible](https://www.merriam-webster.com/dictionary/fallible) by nature.
-It is okay to make mistakes, but we must be willing to admit when we make one.
+[fallible](https://www.merriam-webster.com/dictionary/fallible) by nature. It is
+okay to make mistakes, but we must be willing to admit when we make one.

 ### Be Direct but Professional

@@ -77,9 +77,9 @@ Unsure where to begin contributing to Terra? You can start by looking through "
 beginner" and "help wanted" issues:

 - [Beginner issues](https://github.com/PolyhedralDev/Terra/labels/Note%3A%20Good%20First%20Issue)
-  - issues which should be friendly to anyone new to terra.
+    - issues which should be friendly to anyone new to terra.
 - [Help wanted issues](https://github.com/PolyhedralDev/Terra/labels/Note%3A%20Help%20Wanted)
-  - issues which should be a bit more involved than "beginner" issues.
+    - issues which should be a bit more involved than "beginner" issues.

 New to github? Working on your first Pull Request? Check
 out [How to Contribute to an Open Source Project on GitHub](https://app.egghead.io/playlists/how-to-contribute-to-an-open-source-project-on-github)
@@ -114,9 +114,9 @@ please [include as many details as possible](#how-do-i-submit-a-good-bug-report)
 - Make sure that this is not a *specific* compatibility issue with another
  terrain generation mod. Do not request *specific* compatibility with mods or
  plugins (e.g. "Compatibility with TechCraft v7"). That should be implemented
-  in an addon, **not** in the main project.
+  in an addon, **not** in the platform project.
  *General* compatibility (e.g. "Ability to pull Vanilla/Modded features from
-  parent biomes") will be considered in the main project.
+  parent biomes") will be considered in the platform project.
 - Search for
  any [already existing issues](https://github.com/PolyhedralDev/Terra/issues?q=is%3Aissue+)
  open with your problem. If you open a duplicate, it will be closed as such.
@@ -200,7 +200,7 @@ please [include as many details as possible](#how-do-i-submit-a-good-enhancement

 Enhancement suggestions are tracked
 as [GitHub issues](https://guides.github.com/features/issues/). Create an issue
-on our main repository and provide the following information:
+on our platform repository and provide the following information:

 - **Use a clear and descriptive title** for the issue to identify the
  suggestion.
@@ -243,7 +243,7 @@ accepted.

 Pull Requests are tracked
 as [GitHub Pull Requests](https://guides.github.com/activities/forking/#making-a-pull-request)
-. Create a pr on our main repository and provide the following information:
+. Create a pr on our platform repository and provide the following information:

 - **Use a clear and descriptive title** to identify the pull request.
 - **State what this pull request adds/fixes**.
@@ -347,7 +347,7 @@ TODO
 #### General Compatibility

 General compatibility (example: injection of Vanilla structures/features/carvers
-into packs) is acceptable in the main project.
+into packs) is acceptable in the platform project.

 - General compatibility features should be *disabled by default*. Having things
  auto-injected causes unpredictable behaviour that is annoying to diagnose.
@@ -365,8 +365,9 @@ into packs) is acceptable in the main project.

 #### Specific Compatibility

-Specific compatibility should *not* be put in the main project. (Example: Adding
-the ability to generate TechCraft v7's doo-dads with a TerraScript function)
+Specific compatibility should *not* be put in the platform project. (Example:
+Adding the ability to generate TechCraft v7's doo-dads with a TerraScript
+function)

 Having specific compatibilities leads to tons of extra dependencies to keep
 track of, as well as adding lots of additional stuff to maintain. It quickly
@@ -1,674 +1,21 @@
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-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
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-    Copyright (C) <year>  <name of author>
-
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-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
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-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
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-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<https://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -1,15 +1,30 @@
+<img align="left" width="64" height="64" src="https://raw.githubusercontent.com/wiki/PolyhedralDev/Terra/images/terra_logo.png" alt="Terra Logo">
+
 # Terra

-Terra is an incredibly powerful free & open-source data-driven,
-platform-agnostic world generator. It allows you to create a world exactly to
-your specifications, with no knowledge of Java required.
+Terra is a modern world generation modding platform, primarily for Minecraft.
+Terra allows complete customization of world generation with an advanced API,
+tightly integrated with a powerful configuration system.
+
+Terra consists of several parts:
+
+* A voxel world generation API with emphasis on configuration and extensibility
+* Several platform implementations, the layer between the API and the platform
+  it's running on.
+* An addon loader, which allows addons to interface with the Terra API in a
+  platform-agnostic setting
+* Several "core addons," which implement the "default" configurations of Terra.
+  These addons can be thought of as the config "standard library"
+
+Terra currently officially supports the Fabric mod loader and the Bukkit API
+(Paper and friends). We welcome Pull Requests implementing additional platforms!

 ## Downloads:

-* Paper+ servers (Paper, Tuinity, Purpur,
-  etc): [SpigotMC](https://www.spigotmc.org/resources/85151/)
 * Fabric: [Modrinth](https://modrinth.com/mod/terra)
  / [CurseForge](https://www.curseforge.com/minecraft/mc-mods/terra-world-generator)
+* Paper+ servers (Paper, Tuinity, Purpur,
+  etc): [SpigotMC](https://www.spigotmc.org/resources/85151/)

 ## Building and Running Terra

@@ -44,7 +59,6 @@ To run Minecraft with Terra in the IDE (for testing) use the following tasks:
    * `runClient` - Run a Minecraft Fabric client with Terra installed.
    * `runServer` - Run a Minecraft Fabric server with Terra installed.

-
 ## Contributing

 Contributions are welcome! If you want to see a feature in Terra, please, open
@@ -52,7 +66,43 @@ an issue, or implement it yourself and submit a PR!
 Join the discord [here](https://discord.gg/PXUEbbF) if you would like to talk
 more about the project!

+## Licensing
+
+Parts of Terra are licensed under either the MIT License or the GNU General
+Public License, version 3.0.
+
+* Our API is licensed under the [MIT License](LICENSE), to ensure that everyone
+  is able to freely use it however they want.
+* Our core addons are also licensed under the [MIT License](LICENSE), to ensure
+  that people can freely use code from them to learn and make their own addons,
+  without worrying about GPL infection.
+* Our platform-agnostic implementations and platform implementations are
+  licensed under
+  the [GNU General Public License, version 3.0](common/implementation/LICENSE),
+  to ensure that they remain free software wherever they are used.
+
+If you're not sure which license a particular file is under, check:
+
+* The file's header
+* The LICENSE file in the closest parent folder of the file in question
+
 ## Beta

 Terra is still in beta! While it is stable, it is not feature-complete. There is
 a lot to be added!
+
+## Special Thanks
+
+[![YourKit-Logo](https://www.yourkit.com/images/yklogo.png)](https://www.yourkit.com/)
+
+YourKit has granted Polyhedral Development an open-source license to their
+outstanding Java profiler, allowing us to make our software as performant as it
+can be!
+
+YourKit supports open source projects with innovative and intelligent tools for
+monitoring and profiling Java and .NET applications. YourKit is the creator of
+the
+[YourKit Java Profiler](https://www.yourkit.com/java/profiler/),
+[YourKit .NET Profiler](https://www.yourkit.com/.net/profiler/),
+and [YourKit YouMonitor](https://www.yourkit.com/youmonitor/).
+
@@ -1,17 +1,15 @@
-import com.dfsek.terra.configureCompilation
-import com.dfsek.terra.configureDependencies
-import com.dfsek.terra.configureDistribution
-import com.dfsek.terra.configurePublishing
-import com.dfsek.terra.getGitHash
+preRelease(true)
+
+versionProjects(":common:api", version("6.1.2"))
+versionProjects(":common:implementation", version("6.1.2"))
+versionProjects(":platforms", version("6.1.2"))

-val versionObj = Version("6", "0", "0", true)

 allprojects {
-    version = versionObj
    group = "com.dfsek.terra"
    
-    configureDependencies()
    configureCompilation()
+    configureDependencies()
    configurePublishing()
    
    tasks.withType<JavaCompile>().configureEach {
@@ -30,24 +28,30 @@ allprojects {
        reports.html.required.set(false)
        reports.junitXml.required.set(false)
    }
+    
+    tasks.withType<Copy>().configureEach {
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    }
+    
+    tasks.withType<Jar>().configureEach {
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    }
 }

 afterEvaluate {
-    project(":platforms").subprojects.forEach { // Platform projects are where distribution happens
-        it.configureDistribution()
-    }
-}
-
-/**
- * Version class that does version stuff.
- */
-@Suppress("MemberVisibilityCanBePrivate")
-class Version(val major: String, val minor: String, val revision: String, val preRelease: Boolean = false) {
-    
-    override fun toString(): String {
-        return if (!preRelease)
-            "$major.$minor.$revision"
-        else //Only use git hash if it's a prerelease.
-            "$major.$minor.$revision-BETA+${getGitHash()}"
+    forImmediateSubProjects(":platforms") {
+        configureDistribution()
+    }
+    forSubProjects(":common:addons") {
+        apply(plugin = "com.github.johnrengelman.shadow")
+        
+        tasks.named("build") {
+            finalizedBy(tasks.named("shadowJar"))
+        }
+        
+        dependencies {
+            "compileOnly"(project(":common:api"))
+            "testImplementation"(project(":common:api"))
+        }
    }
 }
@@ -3,12 +3,30 @@ plugins {
    kotlin("jvm") version embeddedKotlinVersion
 }

+buildscript {
+    configurations.all {
+        resolutionStrategy {
+            force("org.ow2.asm:asm:9.3") // TODO: remove when ShadowJar updates ASM version
+            force("org.ow2.asm:asm-commons:9.3")
+        }
+    }
+}
+
 repositories {
    mavenCentral()
    gradlePluginPortal()
+    maven { url = uri("https://repo.codemc.org/repository/maven-public") }
+    maven("https://papermc.io/repo/repository/maven-public/") {
+        name = "PaperMC"
+    }
 }

 dependencies {
-    "implementation"("com.github.jengelman.gradle.plugins:shadow:+")
-    "implementation"("org.yaml:snakeyaml:1.27")
+    implementation("gradle.plugin.com.github.jengelman.gradle.plugins:shadow:+")
+    implementation("io.papermc.paperweight.userdev:io.papermc.paperweight.userdev.gradle.plugin:1.3.5")
+    
+    implementation("org.ow2.asm:asm:9.3")
+    implementation("org.ow2.asm:asm-tree:9.3")
+    implementation("com.dfsek.tectonic:common:4.2.0")
+    implementation("org.yaml:snakeyaml:1.27")
 }
@@ -0,0 +1,47 @@
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import java.io.File
+import java.util.function.Predicate
+import org.gradle.api.Project
+import org.gradle.api.Task
+import org.gradle.kotlin.dsl.extra
+import kotlin.streams.asStream
+
+
+/**
+ * Configures a directory where addons will be put.
+ */
+fun Project.addonDir(dir: File, task: Task) {
+    val moveAddons = tasks.register("moveAddons" + task.name) {
+            dependsOn("compileAddons")
+            doLast {
+                dir.parentFile.mkdirs()
+                matchingAddons(dir) {
+                    it.name.startsWith("Terra-") // Assume everything that starts with Terra- is a core addon.
+                }.forEach {
+                    println("Deleting old addon: " + it.absolutePath)
+                    it.delete()
+                }
+                forSubProjects(":common:addons") {
+                    val jar = tasks.named("shadowJar").get() as ShadowJar
+                    
+                    val boot = if (extra.has("bootstrap") && extra.get("bootstrap") as Boolean) "bootstrap/" else ""
+                    val target = File(dir, boot + jar.archiveFileName.get())
+                    
+                    val base = "${jar.archiveBaseName.get()}-${version}"
+                    
+                    println("Copying addon ${jar.archiveFileName.get()} to ${target.absolutePath}. Base name: $base")
+                    
+                    jar.archiveFile.orNull?.asFile?.copyTo(target)
+                }
+            }
+            
+        }
+    
+    task.dependsOn(moveAddons)
+}
+
+fun matchingAddons(dir: File, matcher: Predicate<File>): Set<File> {
+    val matching = HashSet<File>()
+    dir.walk().asStream().filter(matcher).forEach(matching::add)
+    return matching
+}
@@ -1,5 +1,5 @@
-package com.dfsek.terra
-
+import com.dfsek.terra.tectonicdoc.TectonicDocPlugin
+import org.apache.tools.ant.filters.ReplaceTokens
 import org.gradle.api.JavaVersion
 import org.gradle.api.Project
 import org.gradle.api.plugins.JavaPluginExtension
@@ -19,10 +19,11 @@ fun Project.configureCompilation() {
    apply(plugin = "java")
    apply(plugin = "java-library")
    apply(plugin = "idea")
+    apply<TectonicDocPlugin>()
    
    configure<JavaPluginExtension> {
-        sourceCompatibility = JavaVersion.VERSION_16
-        targetCompatibility = JavaVersion.VERSION_16
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
    }
    
    tasks.withType<JavaCompile> {
@@ -34,16 +35,26 @@ fun Project.configureCompilation() {
    
    tasks.withType<ProcessResources> {
        include("**/*.*")
-        filter<org.apache.tools.ant.filters.ReplaceTokens>(
+        filter<ReplaceTokens>(
            "tokens" to mapOf(
-                "VERSION" to project.version.toString(),
-                "DESCRIPTION" to project.properties["terra.description"],
-                "WIKI" to project.properties["terra.wiki"],
-                "SOURCE" to project.properties["terra.source"],
-                "ISSUES" to project.properties["terra.issues"],
-                "LICENSE" to project.properties["terra.license"]
+                "DESCRIPTION" to properties["terra.description"],
+                "WIKI" to properties["terra.wiki"],
+                "SOURCE" to properties["terra.source"],
+                "ISSUES" to properties["terra.issues"],
+                "LICENSE" to properties["terra.license"]
                             )
-                                                          )
+                             )
+    }
+    
+    afterEvaluate {
+        tasks.withType<ProcessResources> {
+            include("**/*.*")
+            filter<ReplaceTokens>(
+                "tokens" to mapOf(
+                    "VERSION" to version.toString()
+                                 )
+                                 )
+        }
    }
    
    tasks.withType<Javadoc> {
@@ -0,0 +1,47 @@
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.creating
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getValue
+import org.gradle.kotlin.dsl.getting
+import org.gradle.kotlin.dsl.maven
+import org.gradle.kotlin.dsl.repositories
+
+fun Project.configureDependencies() {
+    val testImplementation by configurations.getting
+    val compileOnly by configurations.getting
+    
+    val api by configurations.getting
+    val implementation by configurations.getting
+    
+    val shaded by configurations.creating
+    
+    @Suppress("UNUSED_VARIABLE")
+    val shadedApi by configurations.creating {
+        shaded.extendsFrom(this)
+        api.extendsFrom(this)
+    }
+    
+    @Suppress("UNUSED_VARIABLE")
+    val shadedImplementation by configurations.creating {
+        shaded.extendsFrom(this)
+        implementation.extendsFrom(this)
+    }
+    
+    repositories {
+        mavenCentral()
+        gradlePluginPortal()
+        maven("https://maven.fabricmc.net/")
+        maven("https://repo.codemc.org/repository/maven-public")
+        maven("https://repo.codemc.io/repository/nms/")
+        maven("https://papermc.io/repo/repository/maven-public/")
+    }
+    
+    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")
+        
+        compileOnly("com.google.guava:guava:30.0-jre")
+        testImplementation("com.google.guava:guava:30.0-jre")
+    }
+}
@@ -1,24 +1,25 @@
-package com.dfsek.terra
-
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 import java.io.File
-import java.io.FileInputStream
-import java.io.FileOutputStream
 import java.io.FileWriter
 import java.net.URL
-import java.util.zip.ZipEntry
-import java.util.zip.ZipOutputStream
+import java.nio.file.FileSystems
+import java.nio.file.Files
+import java.nio.file.StandardCopyOption
 import org.gradle.api.DefaultTask
 import org.gradle.api.Project
+import org.gradle.api.Task
 import org.gradle.api.plugins.BasePluginExtension
 import org.gradle.jvm.tasks.Jar
 import org.gradle.kotlin.dsl.apply
 import org.gradle.kotlin.dsl.configure
+import org.gradle.kotlin.dsl.creating
+import org.gradle.kotlin.dsl.extra
 import org.gradle.kotlin.dsl.get
 import org.gradle.kotlin.dsl.named
 import org.yaml.snakeyaml.DumperOptions
 import org.yaml.snakeyaml.Yaml

+
 fun Project.configureDistribution() {
    apply(plugin = "com.github.johnrengelman.shadow")
    
@@ -26,53 +27,51 @@ fun Project.configureDistribution() {
        group = "terra"
        doFirst {
            file("${buildDir}/resources/main/packs/").deleteRecursively()
-            
-            val defaultPackUrl = URL("https://github.com/PolyhedralDev/TerraDefaultConfig/releases/download/latest/default.zip")
+            val defaultPackUrl = URL("https://github.com/PolyhedralDev/TerraOverworldConfig/releases/download/latest/default.zip")
            downloadPack(defaultPackUrl, project)
-            val netherPackUrl = URL("https://github.com/PolyhedralDev/TerraDefaultConfig/releases/download/latest/nether.zip")
-            downloadPack(netherPackUrl, project)
+        }
+    }
+    
+    val compileAddons = tasks.create("compileAddons") {
+        forSubProjects(":common:addons") {
+            afterEvaluate {
+                dependsOn(getJarTask())
+            }
        }
    }
    
    val installAddons = tasks.create("installAddons") {
        group = "terra"
-        project(":common:addons").subprojects.forEach {
-            it.afterEvaluate {
-                dependsOn(it.tasks.getByName("build")) // Depend on addon JARs
-            }
-        }
+        dependsOn(compileAddons)
        
-        doFirst {
-            // The addons are copied into a JAR because of a ShadowJar bug
-            // which expands *all* JARs, even resource ones, into the fat JAR.
-            // To get around this, we copy all addon JARs into a *new* JAR,
-            // then, ShadowJar expands the newly created JAR, putting the original
-            // JARs where they should go.
-            //
+        doLast {
            // https://github.com/johnrengelman/shadow/issues/111
-            val dest = File(buildDir, "/resources/main/addons.jar")
-            dest.parentFile.mkdirs()
+            val dest = tasks.named<ShadowJar>("shadowJar").get().archiveFile.get().asFile.toPath()
            
-            val zip = ZipOutputStream(FileOutputStream(dest))
-            
-            project(":common:addons").subprojects.forEach { addonProject ->
-                val jar = (addonProject.tasks.named("jar").get() as Jar)
-                println("Packaging addon ${jar.archiveFileName.get()} to ${dest.absolutePath}.")
-                
-                val entry = ZipEntry("addons/${jar.archiveFileName.get()}")
-                zip.putNextEntry(entry)
-                FileInputStream(jar.archiveFile.get().asFile).copyTo(zip)
-                zip.closeEntry()
+            FileSystems.newFileSystem(dest, mapOf("create" to "false"), null).use { fs ->
+                forSubProjects(":common:addons") {
+                    val jar = getJarTask()
+                    
+                    println("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()}");
+                    
+                    if (!Files.exists(addonPath)) {
+                        Files.createDirectories(addonPath.parent)
+                        Files.createFile(addonPath)
+                        Files.copy(jar.archiveFile.get().asFile.toPath(), addonPath, StandardCopyOption.REPLACE_EXISTING)
+                    }
+                    
+                }
            }
-            zip.close()
        }
    }
    
    val generateResourceManifest = tasks.create("generateResourceManifest") {
        group = "terra"
        dependsOn(downloadDefaultPacks)
-        dependsOn(installAddons)
-        doFirst {
+        doLast {
            val resources = HashMap<String, MutableList<String>>()
            val packsDir = File("${project.buildDir}/resources/main/packs/")
            
@@ -88,9 +87,12 @@ fun Project.configureDistribution() {
                resources.computeIfAbsent("lang") { ArrayList() }.add(it.name)
            }
            
-            project(":common:addons").subprojects.forEach { addonProject ->
-                val jar = (addonProject.tasks.named("jar").get() as Jar).archiveFileName.get()
-                resources.computeIfAbsent("addons") { ArrayList() }.add(jar)
+            forSubProjects(":common:addons") {
+                val jar = getJarTask().archiveFileName.get()
+                resources.computeIfAbsent(
+                    if (extra.has("bootstrap") && extra.get("bootstrap") as Boolean) "addons/bootstrap"
+                    else "addons"
+                                         ) { ArrayList() }.add(jar)
            }
            
            val options = DumperOptions()
@@ -113,18 +115,20 @@ fun Project.configureDistribution() {
    
    tasks["processResources"].dependsOn(generateResourceManifest)
    
+    
    tasks.named<ShadowJar>("shadowJar") {
        // Tell shadow to download the packs
        dependsOn(downloadDefaultPacks)
-        
        configurations = listOf(project.configurations["shaded"])
-        
        archiveClassifier.set("shaded")
        setVersion(project.version)
        relocate("org.apache.commons", "com.dfsek.terra.lib.commons")
        relocate("org.objectweb.asm", "com.dfsek.terra.lib.asm")
+        relocate("com.dfsek.paralithic", "com.dfsek.terra.lib.paralithic")
        relocate("org.json", "com.dfsek.terra.lib.json")
        relocate("org.yaml", "com.dfsek.terra.lib.yaml")
+        
+        finalizedBy(installAddons)
    }
    
    configure<BasePluginExtension> {
@@ -141,4 +145,6 @@ fun downloadPack(packUrl: URL, project: Project) {
    val file = File("${project.buildDir}/resources/main/packs/${fileName}")
    file.parentFile.mkdirs()
    file.outputStream().write(packUrl.readBytes())
-}
+}
+
+fun Project.getJarTask() = tasks.named("shadowJar").get() as ShadowJar
@@ -1,5 +1,3 @@
-package com.dfsek.terra
-
 import org.gradle.api.Project
 import org.gradle.api.publish.PublishingExtension
 import org.gradle.api.publish.maven.MavenPublication
@@ -13,8 +11,7 @@ fun Project.configurePublishing() {
    configure<PublishingExtension> {
        publications {
            create<MavenPublication>("mavenJava") {
-                artifact(tasks["sourcesJar"])
-                artifact(tasks["jar"])
+                from(components["java"])
            }
        }
        
@@ -0,0 +1,56 @@
+import java.io.ByteArrayOutputStream
+import org.gradle.api.Action
+import org.gradle.api.Project
+
+
+var isPrerelease = false
+
+
+fun Project.getGitHash(): String {
+    val stdout = ByteArrayOutputStream()
+    exec {
+        commandLine = mutableListOf("git", "rev-parse", "--short", "HEAD")
+        standardOutput = stdout
+    }
+    return stdout.toString().trim()
+}
+
+fun Project.gitClone(name: String) {
+    val stdout = ByteArrayOutputStream()
+    exec {
+        commandLine = mutableListOf("git", "clone", name)
+        standardOutput = stdout
+    }
+}
+
+fun Project.forSubProjects(project: String, action: Action<Project>) {
+    project(project).subprojects.forEach {
+        action.execute(it)
+    }
+}
+
+fun Project.forImmediateSubProjects(project: String, action: Action<Project>) {
+    project(project).childProjects.forEach {
+        action.execute(it.value)
+    }
+}
+
+fun preRelease(preRelease: Boolean) {
+    isPrerelease = preRelease
+}
+
+fun Project.versionProjects(project: String, version: String) {
+    forSubProjects(project) {
+        this.version = version
+        println("Setting version of $path to $version")
+    }
+    project(project).version = version
+    println("Setting version of $project to $version")
+}
+
+fun Project.version(version: String): String {
+    return if (!isPrerelease)
+        version
+    else //Only use git hash if it's a prerelease.
+        "$version-BETA+${getGitHash()}"
+}
@@ -0,0 +1,40 @@
+object Versions {
+    object Libraries {
+        const val tectonic = "4.2.0"
+        const val paralithic = "0.7.0"
+        const val strata = "1.1.1"
+        
+        const val cloud = "1.7.0-SNAPSHOT"
+        
+        const val slf4j = "1.7.36"
+        const val log4j_slf4j_impl = "2.14.1"
+        
+        object Internal {
+            const val apacheText = "1.9"
+            const val jafama = "2.3.2"
+            const val apacheIO = "2.6"
+            const val fastutil = "8.5.6"
+        }
+    }
+    
+    object Fabric {
+        const val fabricLoader = "0.14.2"
+        const val fabricAPI = "0.55.1+1.19"
+        const val minecraft = "1.19"
+        const val yarn = "$minecraft+build.1"
+        const val permissionsAPI = "0.1-SNAPSHOT"
+        const val mixin = "0.11.2+mixin.0.8.5"
+        const val loom = "0.11-SNAPSHOT"
+    }
+    
+    object Bukkit {
+        const val paper = "1.18-R0.1-SNAPSHOT"
+        const val paperLib = "1.0.5"
+    }
+    
+    object Sponge {
+        const val sponge = "9.0.0-SNAPSHOT"
+        const val mixin = "0.8.2"
+        const val minecraft = "1.17.1"
+    }
+}
@@ -1,41 +0,0 @@
-package com.dfsek.terra
-
-import java.io.File
-import java.util.function.Predicate
-import org.gradle.api.Project
-import org.gradle.api.Task
-import org.gradle.jvm.tasks.Jar
-import kotlin.streams.asStream
-
-
-/**
- * Configures a directory where addons will be put.
- */
-fun Project.addonDir(dir: File, task: Task) {
-    task.doFirst {
-        dir.parentFile.mkdirs()
-        matchingAddons(dir) {
-            it.name.startsWith("Terra-") // Assume everything that starts with Terra- is a core addon.
-        }.forEach {
-            println("Deleting old addon: " + it.absolutePath)
-            it.delete()
-        }
-        project(":common:addons").subprojects.forEach { addonProject ->
-            val jar = (addonProject.tasks.named("jar").get() as Jar)
-            
-            val target = File(dir, jar.archiveFileName.get())
-            
-            val base = "${jar.archiveBaseName.get()}-${project.version}"
-            
-            println("Copying addon ${jar.archiveFileName.get()} to ${target.absolutePath}. Base name: $base")
-            
-            jar.archiveFile.orNull?.asFile?.copyTo(target)
-        }
-    }
-}
-
-fun matchingAddons(dir: File, matcher: Predicate<File>): Set<File> {
-    val matching = HashSet<File>()
-    dir.walk().maxDepth(1).asStream().filter(matcher).forEach(matching::add)
-    return matching
-}
@@ -1,21 +0,0 @@
-package com.dfsek.terra
-
-import java.io.ByteArrayOutputStream
-import org.gradle.api.Project
-
-fun Project.getGitHash(): String {
-    val stdout = ByteArrayOutputStream()
-    exec {
-        commandLine = mutableListOf("git", "rev-parse", "--short", "HEAD")
-        standardOutput = stdout
-    }
-    return stdout.toString().trim()
-}
-
-fun Project.gitClone(name: String) {
-    val stdout = ByteArrayOutputStream()
-    exec {
-        commandLine = mutableListOf("git", "clone", name)
-        standardOutput = stdout
-    }
-}
@@ -1,48 +0,0 @@
-package com.dfsek.terra
-
-import org.gradle.api.Project
-import org.gradle.kotlin.dsl.apply
-import org.gradle.kotlin.dsl.dependencies
-import org.gradle.kotlin.dsl.invoke
-import org.gradle.kotlin.dsl.project
-import org.gradle.kotlin.dsl.repositories
-
-fun Project.configureDependencies() {
-    apply(plugin = "java")
-    apply(plugin = "java-library")
-    
-    configurations {
-        val shaded = create("shaded")
-        val shadedApi = create("shadedApi")
-        shaded.extendsFrom(shadedApi)
-        getByName("api").extendsFrom(shadedApi)
-        val shadedImplementation = create("shadedImplementation")
-        shaded.extendsFrom(shadedImplementation)
-        getByName("implementation").extendsFrom(shadedImplementation)
-    }
-    
-    repositories {
-        maven { url = uri("https://maven.enginehub.org/repo/") }
-        maven { url = uri("https://repo.codemc.org/repository/maven-public") }
-        maven { url = uri("https://papermc.io/repo/repository/maven-public/") }
-        maven { url = uri("https://maven.fabricmc.net/") }
-        gradlePluginPortal()
-        mavenCentral()
-    }
-    
-    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:20.1.0")
-        
-        "compileOnly"("com.google.guava:guava:30.0-jre")
-        "testImplementation"("com.google.guava:guava:30.0-jre")
-    }
-    
-    if (project(":common:addons").subprojects.contains(this)) { // If this is an addon project, depend on the API.
-        dependencies {
-            "compileOnly"(project(":common:api"))
-            "testImplementation"(project(":common:api"))
-        }
-    }
-}
@@ -0,0 +1,20 @@
+package com.dfsek.terra.tectonicdoc
+
+class DocumentedTemplate(private val name: String) {
+    private val template = HashMap<String, String>()
+    
+    fun add(name: String, content: String) {
+        template[name] = content
+    }
+    
+    fun format(): String {
+        val builder = StringBuilder("# ").append(name).append("\n\n")
+        template.forEach { name, content ->
+            builder
+                .append("### $name\n\n")
+                .append(content)
+                .append("\n\n")
+        }
+        return builder.toString()
+    }
+}
@@ -0,0 +1,150 @@
+package com.dfsek.terra.tectonicdoc
+
+import com.dfsek.tectonic.api.config.template.annotations.Description
+import com.dfsek.tectonic.api.config.template.annotations.Final
+import com.dfsek.tectonic.api.config.template.annotations.Value
+import java.io.File
+import java.io.FileInputStream
+import java.io.InputStream
+import org.gradle.api.DefaultTask
+import org.gradle.api.plugins.JavaPluginExtension
+import org.gradle.api.tasks.TaskAction
+import org.objectweb.asm.ClassReader
+import org.objectweb.asm.tree.ClassNode
+import org.objectweb.asm.tree.FieldNode
+
+
+abstract class GenerateDocsTask : DefaultTask() {
+    @TaskAction
+    fun generateDocs() {
+        project.extensions.getByType(JavaPluginExtension::class.java).sourceSets.forEach { sources ->
+            val classes = HashMap<String, ClassNode>()
+            sources.java.classesDirectory.get().asFileTree.forEach { file ->
+                if (file.name.endsWith(".class")) {
+                    val node = createClassNode(FileInputStream(file))
+                    if (node.fields.stream().anyMatch { field ->
+                            field.visibleAnnotations?.stream()?.anyMatch {
+                                it.desc.equals(descriptor(Value::class.java.canonicalName))
+                            } == true
+                        }) {
+                        var name = sources
+                            .java
+                            .classesDirectory
+                            .get()
+                            .asFile
+                            .toPath()
+                            .relativize(file.toPath())
+                            .toString()
+                            .substringBeforeLast('.')
+                        if (name.endsWith("Template")) {
+                            name = name.substringBeforeLast("Template")
+                        }
+                        classes[name] = node
+                    }
+                }
+            }
+            
+            val docsDir = File(project.buildDir, "tectonic")
+            docsDir.mkdirs()
+            
+            classes.forEach { (name, clazz) ->
+                val template = DocumentedTemplate(name.substringAfterLast('/'))
+                clazz.fields
+                    .stream()
+                    .filter { field ->
+                        field.visibleAnnotations?.stream()?.anyMatch {
+                            it.desc.equals(descriptor(Value::class.java.canonicalName))
+                        } == true
+                    }.forEach { field ->
+                        val annotations = field.visibleAnnotations
+                        
+                        val description = StringBuilder()
+                        
+                        annotations.stream().filter {
+                            it.desc.equals(descriptor(Description::class.java.canonicalName))
+                        }.forEach {
+                            description.append(it.values[1])
+                        }
+                        
+                        val keyName = StringBuilder()
+                        
+                        if (annotations.stream().anyMatch { it.desc.equals(descriptor(Final::class.java.canonicalName)) }) {
+                            keyName.append("final ")
+                        }
+                        
+                        keyName.append(getType(field))
+                            .append(" ")
+                        
+                        annotations.stream().filter {
+                            it.desc.equals(descriptor(Value::class.java.canonicalName))
+                        }.forEach {
+                            keyName.append(it.values[1])
+                        }
+                        
+                        template.add(keyName.toString(), description.toString().ifBlank {
+                            println("No description provided for field " + field.name + " in class " + name)
+                            "*No description provided.*"
+                        })
+                    }
+                
+                
+                val save = File(docsDir, "$name.md")
+                if (save.exists()) save.delete()
+                save.parentFile.mkdirs()
+                save.createNewFile()
+                save.writeText(template.format())
+            }
+        }
+    }
+    
+    private fun getType(node: FieldNode): String {
+        if (node.signature != null) {
+            return generic(node.signature)
+        }
+        return descriptorToHumanReadable(node.desc).substringAfterLast('.')
+    }
+    
+    private fun generic(type: String): String {
+        val clean = descriptorToHumanReadable(type)
+        
+        if (clean.contains('<')) {
+            val typeIndex = clean.indexOf('<')
+            return clean.substring(0, typeIndex + 1).substringAfterLast('.') + generic(clean.substring(typeIndex + 1)) + "\\>"
+        }
+        
+        return clean.substringAfterLast('.')
+    }
+    
+    private fun createClassNode(input: InputStream): ClassNode {
+        val reader = ClassReader(input)
+        val node = ClassNode()
+        try {
+            reader.accept(node, ClassReader.EXPAND_FRAMES)
+        } catch (e: Exception) {
+            reader.accept(node, ClassReader.SKIP_FRAMES or ClassReader.SKIP_DEBUG)
+        }
+        return node
+    }
+    
+    private fun descriptorToHumanReadable(descriptor: String): String {
+        if (descriptor.startsWith('L')) {
+            return descriptor.substring(1).substringBeforeLast(';').replace('/', '.')
+        }
+        if (descriptor.startsWith("[")) {
+            return "${descriptorToHumanReadable(descriptor.substring(1))}[]"
+        }
+        return when (descriptor) {
+            "B"  -> "byte"
+            "C"  -> "char"
+            "I"  -> "int"
+            "D"  -> "double"
+            "F"  -> "float"
+            "J"  -> "long"
+            "S"  -> "short"
+            "Z"  -> "boolean"
+            else -> descriptor
+        }
+    }
+    
+    private fun descriptor(name: String): String = "L${name.replace('.', '/')};"
+}
@@ -0,0 +1,10 @@
+package com.dfsek.terra.tectonicdoc
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+
+class TectonicDocPlugin : Plugin<Project> {
+    override fun apply(project: Project) {
+        project.tasks.create("generateDocs", GenerateDocsTask::class.java)
+    }
+}
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -0,0 +1,3 @@
+# api addon loader
+
+Loads dependencies as addons
@@ -0,0 +1,12 @@
+version = version("0.1.0")
+
+dependencies {
+}
+
+tasks.withType<Jar> {
+    manifest {
+        attributes("Terra-Bootstrap-Addon-Entry-Point" to "com.dfsek.terra.addon.loader.ApiAddonLoader")
+    }
+}
+
+project.extra.set("bootstrap", true)
@@ -0,0 +1,26 @@
+package com.dfsek.terra.addon.loader;
+
+import ca.solostudios.strata.version.Version;
+
+import com.dfsek.terra.api.addon.BaseAddon;
+
+
+public class ApiAddon implements BaseAddon {
+    private final Version version;
+    private final String id;
+    
+    public ApiAddon(Version version, String id) {
+        this.version = version;
+        this.id = id;
+    }
+    
+    @Override
+    public Version getVersion() {
+        return version;
+    }
+    
+    @Override
+    public String getID() {
+        return id;
+    }
+}
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2020-2021 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.addon.loader;
+
+import java.net.URL;
+import java.net.URLClassLoader;
+
+
+public class ApiAddonClassLoader extends URLClassLoader {
+    static {
+        ClassLoader.registerAsParallelCapable();
+    }
+    
+    public ApiAddonClassLoader(URL[] urls, ClassLoader parent) {
+        super(urls, parent);
+    }
+}
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2020-2021 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.addon.loader;
+
+import ca.solostudios.strata.Versions;
+import ca.solostudios.strata.version.Version;
+
+import java.nio.file.Path;
+import java.util.Collections;
+
+import com.dfsek.terra.api.addon.BaseAddon;
+import com.dfsek.terra.api.addon.bootstrap.BootstrapAddonClassLoader;
+import com.dfsek.terra.api.addon.bootstrap.BootstrapBaseAddon;
+
+
+public class ApiAddonLoader implements BootstrapBaseAddon<BaseAddon> {
+    private static final Version VERSION = Versions.getVersion(1, 0, 0);
+    
+    @Override
+    public Iterable<BaseAddon> loadAddons(Path addonsFolder, BootstrapAddonClassLoader parent) {
+        
+        return Collections.emptySet();
+    }
+    
+    @Override
+    public String getID() {
+        return "API";
+    }
+    
+    @Override
+    public Version getVersion() {
+        return VERSION;
+    }
+}
@@ -1,10 +0,0 @@
-# api-features
-
-Contains the API for feature generation.
-
-This API implemented in:
-
-* `config-feature`
-* `generation-stage-feature`
-* `config-locators`
-* `config-distributors`
@@ -1,2 +0,0 @@
-dependencies {
-}
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -1,2 +1,11 @@
+version = version("1.0.0")
+
 dependencies {
+    compileOnlyApi(project(":common:addons:manifest-addon-loader"))
+    implementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
+    testImplementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
 }
+
+tasks.named<com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar>("shadowJar") {
+    relocate("net.jafama", "com.dfsek.terra.addons.biome.image.lib.jafama")
+}
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.image;

 import net.jafama.FastMath;
@@ -8,17 +15,17 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;

-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;


 public class ImageBiomeProvider implements BiomeProvider {
-    private final Map<Color, TerraBiome> colorBiomeMap = new HashMap<>();
+    private final Map<Color, Biome> colorBiomeMap = new HashMap<>();
    private final BufferedImage image;
    private final int resolution;
    private final Align align;
    
-    public ImageBiomeProvider(Set<TerraBiome> registry, BufferedImage image, int resolution, Align align) {
+    public ImageBiomeProvider(Set<Biome> registry, BufferedImage image, int resolution, Align align) {
        this.image = image;
        this.resolution = resolution;
        this.align = align;
@@ -30,7 +37,7 @@ public class ImageBiomeProvider implements BiomeProvider {
    }
    
    @Override
-    public TerraBiome getBiome(int x, int z, long seed) {
+    public Biome getBiome(int x, int y, int z, long seed) {
        x /= resolution;
        z /= resolution;
        Color color = align.getColor(image, x, z);
@@ -44,6 +51,11 @@ public class ImageBiomeProvider implements BiomeProvider {
                                                      }));
    }
    
+    @Override
+    public Iterable<Biome> getBiomes() {
+        return colorBiomeMap.values();
+    }
+    
    public enum Align {
        CENTER {
            @Override
@@ -1,43 +1,49 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.image;

-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;

 import java.util.function.Supplier;

-import com.dfsek.terra.api.TerraPlugin;
-import com.dfsek.terra.api.addon.TerraAddon;
-import com.dfsek.terra.api.addon.annotations.Addon;
-import com.dfsek.terra.api.addon.annotations.Author;
-import com.dfsek.terra.api.addon.annotations.Version;
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
+import com.dfsek.terra.api.Platform;
+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.injection.annotations.Inject;
+import com.dfsek.terra.api.inject.annotations.Inject;
 import com.dfsek.terra.api.registry.CheckedRegistry;
 import com.dfsek.terra.api.util.reflection.TypeKey;
-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;


-@Addon("biome-provider-image")
-@Author("Terra")
-@Version("1.0.0")
-public class ImageBiomeProviderAddon extends TerraAddon {
+public class ImageBiomeProviderAddon implements AddonInitializer {
    public static final TypeKey<Supplier<ObjectTemplate<BiomeProvider>>> PROVIDER_REGISTRY_KEY = new TypeKey<>() {
    };
    
    @Inject
-    private TerraPlugin main;
+    private Platform platform;
+    
+    @Inject
+    private BaseAddon addon;
    
    @Override
    public void initialize() {
-        main.getEventManager()
-            .getHandler(FunctionalEventHandler.class)
-            .register(this, ConfigPackPreLoadEvent.class)
-            .then(event -> {
-                CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
-                        PROVIDER_REGISTRY_KEY);
-                providerRegistry.register("IMAGE", () -> new ImageProviderTemplate(event.getPack().getRegistry(TerraBiome.class)));
-            })
-            .failThrough();
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPreLoadEvent.class)
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
+                            PROVIDER_REGISTRY_KEY);
+                    providerRegistry.register(addon.key("IMAGE"),
+                                              () -> new ImageProviderTemplate(event.getPack().getRegistry(Biome.class)));
+                })
+                .failThrough();
    }
 }
@@ -1,28 +1,40 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.image;

-import com.dfsek.tectonic.annotations.Default;
-import com.dfsek.tectonic.annotations.Value;
-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;

 import java.awt.image.BufferedImage;
 import java.util.HashSet;

 import com.dfsek.terra.api.registry.Registry;
-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;


+@SuppressWarnings("FieldMayBeFinal")
 public class ImageProviderTemplate implements ObjectTemplate<BiomeProvider> {
-    private final Registry<TerraBiome> biomes;
+    private final Registry<Biome> biomes;
    @Value("resolution")
    @Default
-    private final int resolution = 1;
+    @Description("Sets the resolution at which to sample the image.")
+    private int resolution = 1;
    @Value("image.name")
+    @Description("Sets the location of the image on the filesystem, relative to the pack root.")
    private BufferedImage image;
    @Value("image.align")
+    @Description("Sets the alignment style to use for the image.")
    private ImageBiomeProvider.Align align;
    
-    public ImageProviderTemplate(Registry<TerraBiome> set) {
+    public ImageProviderTemplate(Registry<Biome> set) {
        this.biomes = set;
    }
    
@@ -0,0 +1,12 @@
+schema-version: 1
+contributors:
+  - Terra contributors
+id: biome-provider-image
+version: @VERSION@
+entrypoints:
+  - "com.dfsek.terra.addons.biome.image.ImageBiomeProviderAddon"
+website:
+  issues: https://github.com/PolyhedralDev/Terra/issues
+  source: https://github.com/PolyhedralDev/Terra
+  docs: https://terra.polydev.org
+license: MIT License
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -1,2 +1,14 @@
+version = version("1.0.0")
+
 dependencies {
+    compileOnlyApi(project(":common:addons:manifest-addon-loader"))
+    implementation("com.github.ben-manes.caffeine:caffeine:3.1.0")
+    
+    implementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
+    testImplementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
 }
+
+tasks.named<com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar>("shadowJar") {
+    relocate("com.github.benmanes.caffeine", "com.dfsek.terra.addons.biome.pipeline.lib.caffeine")
+    relocate("net.jafama", "com.dfsek.terra.addons.biome.pipeline.lib.jafama")
+}
@@ -1,28 +1,35 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline;

-import com.dfsek.terra.addons.biome.pipeline.api.BiomeExpander;
 import com.dfsek.terra.addons.biome.pipeline.api.BiomeHolder;
-import com.dfsek.terra.addons.biome.pipeline.api.BiomeMutator;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeExpander;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeMutator;
 import com.dfsek.terra.addons.biome.pipeline.source.BiomeSource;
-import com.dfsek.terra.api.vector.Vector2;
-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.api.util.vector.Vector2;


 public class BiomeHolderImpl implements BiomeHolder {
-    private final Vector2 origin;
+    private final Vector2.Mutable origin;
    private final int width;
    private final int offset;
-    private TerraBiome[][] biomes;
+    private BiomeDelegate[][] biomes;
    
-    public BiomeHolderImpl(int width, Vector2 origin) {
+    public BiomeHolderImpl(int width, Vector2.Mutable origin) {
        width += 4;
        this.width = width;
-        biomes = new TerraBiome[width][width];
+        biomes = new BiomeDelegate[width][width];
        this.origin = origin;
        this.offset = 2;
    }
    
-    private BiomeHolderImpl(TerraBiome[][] biomes, Vector2 origin, int width, int offset) {
+    private BiomeHolderImpl(BiomeDelegate[][] biomes, Vector2.Mutable origin, int width, int offset) {
        this.biomes = biomes;
        this.origin = origin;
        this.width = width;
@@ -31,10 +38,10 @@ public class BiomeHolderImpl implements BiomeHolder {
    
    @Override
    public BiomeHolder expand(BiomeExpander expander, long seed) {
-        TerraBiome[][] old = biomes;
+        BiomeDelegate[][] old = biomes;
        int newWidth = width * 2 - 1;
        
-        biomes = new TerraBiome[newWidth][newWidth];
+        biomes = new BiomeDelegate[newWidth][newWidth];
        
        for(int x = 0; x < width; x++) {
            for(int z = 0; z < width; z++) {
@@ -73,14 +80,14 @@ public class BiomeHolderImpl implements BiomeHolder {
    }
    
    @Override
-    public TerraBiome getBiome(int x, int z) {
+    public BiomeDelegate getBiome(int x, int z) {
        x += offset;
        z += offset;
        return getBiomeRaw(x, z);
    }
    
    @Override
-    public TerraBiome getBiomeRaw(int x, int z) {
+    public BiomeDelegate getBiomeRaw(int x, int z) {
        if(x >= width || z >= width || x < 0 || z < 0) return null;
        return biomes[x][z];
    }
@@ -1,12 +1,20 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline;

 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;

 import com.dfsek.terra.addons.biome.pipeline.api.BiomeHolder;
-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.addons.biome.pipeline.source.BiomeSource;
-import com.dfsek.terra.api.vector.Vector2;
+import com.dfsek.terra.api.util.vector.Vector2;


 public class BiomePipeline {
@@ -31,19 +39,27 @@ public class BiomePipeline {
     * @return BiomeHolder containing biomes.
     */
    public BiomeHolder getBiomes(int x, int z, long seed) {
-        BiomeHolder holder = new BiomeHolderImpl(init, new Vector2(x * (init - 1), z * (init - 1)));
+        BiomeHolder holder = new BiomeHolderImpl(init, Vector2.of(x * (init - 1), z * (init - 1)).mutable());
        holder.fill(source, seed);
        for(Stage stage : stages) holder = stage.apply(holder, seed);
        return holder;
    }
    
+    public BiomeSource getSource() {
+        return source;
+    }
+    
+    public List<Stage> getStages() {
+        return Collections.unmodifiableList(stages);
+    }
+    
    public int getSize() {
        return size;
    }
    
    public static final class BiomePipelineBuilder {
        private final int init;
-        List<Stage> stages = new ArrayList<>();
+        private final List<Stage> stages = new ArrayList<>();
        private int expand;
        
        public BiomePipelineBuilder(int init) {
@@ -1,12 +1,21 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline;

-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;

 import java.util.function.Supplier;

-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
+import com.dfsek.terra.addons.biome.pipeline.config.BiomeDelegateLoader;
 import com.dfsek.terra.addons.biome.pipeline.config.BiomePipelineTemplate;
-import com.dfsek.terra.addons.biome.pipeline.config.NoiseSourceTemplate;
+import com.dfsek.terra.addons.biome.pipeline.config.SamplerSourceTemplate;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.expander.ExpanderStageTemplate;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.mutator.BorderListMutatorTemplate;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.mutator.BorderMutatorTemplate;
@@ -14,23 +23,21 @@ import com.dfsek.terra.addons.biome.pipeline.config.stage.mutator.ReplaceListMut
 import com.dfsek.terra.addons.biome.pipeline.config.stage.mutator.ReplaceMutatorTemplate;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.mutator.SmoothMutatorTemplate;
 import com.dfsek.terra.addons.biome.pipeline.source.BiomeSource;
-import com.dfsek.terra.api.TerraPlugin;
-import com.dfsek.terra.api.addon.TerraAddon;
-import com.dfsek.terra.api.addon.annotations.Addon;
-import com.dfsek.terra.api.addon.annotations.Author;
-import com.dfsek.terra.api.addon.annotations.Version;
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
+import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.addon.BaseAddon;
+import com.dfsek.terra.api.event.events.config.pack.ConfigPackPostLoadEvent;
 import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
 import com.dfsek.terra.api.event.functional.FunctionalEventHandler;
-import com.dfsek.terra.api.injection.annotations.Inject;
+import com.dfsek.terra.api.inject.annotations.Inject;
 import com.dfsek.terra.api.registry.CheckedRegistry;
+import com.dfsek.terra.api.registry.Registry;
 import com.dfsek.terra.api.util.reflection.TypeKey;
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;


-@Addon("biome-provider-pipeline")
-@Author("Terra")
-@Version("1.0.0")
-public class BiomePipelineAddon extends TerraAddon {
+public class BiomePipelineAddon implements AddonInitializer {
    
    public static final TypeKey<Supplier<ObjectTemplate<BiomeSource>>> SOURCE_REGISTRY_KEY = new TypeKey<>() {
    };
@@ -40,32 +47,43 @@ public class BiomePipelineAddon extends TerraAddon {
    public static final TypeKey<Supplier<ObjectTemplate<BiomeProvider>>> PROVIDER_REGISTRY_KEY = new TypeKey<>() {
    };
    @Inject
-    private TerraPlugin main;
+    private Platform platform;
+    
+    @Inject
+    private BaseAddon addon;
    
    @Override
    public void initialize() {
-        main.getEventManager()
-            .getHandler(FunctionalEventHandler.class)
-            .register(this, ConfigPackPreLoadEvent.class)
-            .then(event -> {
-                CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
-                        PROVIDER_REGISTRY_KEY);
-                providerRegistry.register("PIPELINE", () -> new BiomePipelineTemplate(main));
-            })
-            .then(event -> {
-                CheckedRegistry<Supplier<ObjectTemplate<BiomeSource>>> sourceRegistry = event.getPack().getOrCreateRegistry(
-                        SOURCE_REGISTRY_KEY);
-                sourceRegistry.register("NOISE", NoiseSourceTemplate::new);
-            })
-            .then(event -> {
-                CheckedRegistry<Supplier<ObjectTemplate<Stage>>> stageRegistry = event.getPack().getOrCreateRegistry(STAGE_REGISTRY_KEY);
-                stageRegistry.register("FRACTAL_EXPAND", ExpanderStageTemplate::new);
-                stageRegistry.register("SMOOTH", SmoothMutatorTemplate::new);
-                stageRegistry.register("REPLACE", ReplaceMutatorTemplate::new);
-                stageRegistry.register("REPLACE_LIST", ReplaceListMutatorTemplate::new);
-                stageRegistry.register("BORDER", BorderMutatorTemplate::new);
-                stageRegistry.register("BORDER_LIST", BorderListMutatorTemplate::new);
-            })
-            .failThrough();
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPreLoadEvent.class)
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
+                            PROVIDER_REGISTRY_KEY);
+                    providerRegistry.register(addon.key("PIPELINE"), BiomePipelineTemplate::new);
+                })
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<BiomeSource>>> sourceRegistry = event.getPack().getOrCreateRegistry(
+                            SOURCE_REGISTRY_KEY);
+                    sourceRegistry.register(addon.key("SAMPLER"), SamplerSourceTemplate::new);
+                })
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<Stage>>> stageRegistry = event.getPack().getOrCreateRegistry(
+                            STAGE_REGISTRY_KEY);
+                    stageRegistry.register(addon.key("FRACTAL_EXPAND"), ExpanderStageTemplate::new);
+                    stageRegistry.register(addon.key("SMOOTH"), SmoothMutatorTemplate::new);
+                    stageRegistry.register(addon.key("REPLACE"), ReplaceMutatorTemplate::new);
+                    stageRegistry.register(addon.key("REPLACE_LIST"), ReplaceListMutatorTemplate::new);
+                    stageRegistry.register(addon.key("BORDER"), BorderMutatorTemplate::new);
+                    stageRegistry.register(addon.key("BORDER_LIST"), BorderListMutatorTemplate::new);
+                })
+                .failThrough();
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPostLoadEvent.class)
+                .then(event -> {
+                    Registry<Biome> biomeRegistry = event.getPack().getRegistry(Biome.class);
+                    event.getPack().applyLoader(BiomeDelegate.class, new BiomeDelegateLoader(biomeRegistry));
+                });
    }
 }
@@ -1,15 +1,27 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline;

-import com.google.common.cache.CacheBuilder;
-import com.google.common.cache.CacheLoader;
-import com.google.common.cache.LoadingCache;
+import com.github.benmanes.caffeine.cache.Caffeine;
+import com.github.benmanes.caffeine.cache.LoadingCache;
 import net.jafama.FastMath;
-import org.jetbrains.annotations.NotNull;
+
+import java.util.Comparator;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.stream.StreamSupport;

 import com.dfsek.terra.addons.biome.pipeline.api.BiomeHolder;
-import com.dfsek.terra.api.TerraPlugin;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.api.noise.NoiseSampler;
-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.api.registry.key.StringIdentifiable;
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;


@@ -20,27 +32,49 @@ public class BiomePipelineProvider implements BiomeProvider {
    private final NoiseSampler mutator;
    private final double noiseAmp;
    
-    public BiomePipelineProvider(BiomePipeline pipeline, TerraPlugin main, int resolution, NoiseSampler mutator, double noiseAmp) {
+    private final Set<Biome> biomes;
+    
+    public BiomePipelineProvider(BiomePipeline pipeline, int resolution, NoiseSampler mutator, double noiseAmp) {
        this.resolution = resolution;
        this.mutator = mutator;
        this.noiseAmp = noiseAmp;
-        holderCache = CacheBuilder.newBuilder()
-                                  .maximumSize(main == null ? 32 : main.getTerraConfig().getProviderCache())
-                                  .build(
-                                          new CacheLoader<SeededVector, BiomeHolder>() {
-                                              @Override
-                                              public BiomeHolder load(@NotNull SeededVector key) {
-                                                  return pipeline.getBiomes(key.x, key.z, key.seed);
-                                              }
-                                          }
-                                        );
+        holderCache = Caffeine.newBuilder()
+                              .maximumSize(1024)
+                              .build(key -> pipeline.getBiomes(key.x, key.z, key.seed));
        this.pipeline = pipeline;
+        
+        Set<BiomeDelegate> biomeSet = new HashSet<>();
+        pipeline.getSource().getBiomes().forEach(biomeSet::add);
+        Iterable<BiomeDelegate> result = biomeSet;
+        for(Stage stage : pipeline.getStages()) {
+            result = stage.getBiomes(result); // pass through all stages
+        }
+        this.biomes = new HashSet<>();
+        Iterable<BiomeDelegate> finalResult = result;
+        result.forEach(biomeDelegate -> {
+            if(biomeDelegate.isEphemeral()) {
+                
+                StringBuilder biomeList = new StringBuilder("\n");
+                StreamSupport.stream(finalResult.spliterator(), false)
+                             .sorted(Comparator.comparing(StringIdentifiable::getID))
+                             .forEach(delegate -> biomeList
+                                     .append("    - ")
+                                     .append(delegate.getID())
+                                     .append(':')
+                                     .append(delegate.getClass().getCanonicalName())
+                                     .append('\n'));
+                throw new IllegalArgumentException("Biome Pipeline leaks ephemeral biome \"" + biomeDelegate.getID() +
+                                                   "\". Ensure there is a stage to guarantee replacement of the ephemeral biome. Biomes: " +
+                                                   biomeList);
+            }
+            this.biomes.add(biomeDelegate.getBiome());
+        });
    }
    
    @Override
-    public TerraBiome getBiome(int x, int z, long seed) {
-        x += mutator.getNoiseSeeded(seed + 1, x, z) * noiseAmp;
-        z += mutator.getNoiseSeeded(seed + 2, x, z) * noiseAmp;
+    public Biome getBiome(int x, int y, int z, long seed) {
+        x += mutator.noise(seed + 1, x, z) * noiseAmp;
+        z += mutator.noise(seed + 2, x, z) * noiseAmp;
        
        
        x = FastMath.floorToInt(FastMath.floorDiv(x, resolution));
@@ -49,36 +83,15 @@ public class BiomePipelineProvider implements BiomeProvider {
        
        int fdX = FastMath.floorDiv(x, pipeline.getSize());
        int fdZ = FastMath.floorDiv(z, pipeline.getSize());
-        return holderCache.getUnchecked(new SeededVector(fdX, fdZ, seed)).getBiome(x - fdX * pipeline.getSize(),
-                                                                                   z - fdZ * pipeline.getSize());
+        return holderCache.get(new SeededVector(fdX, fdZ, seed)).getBiome(x - fdX * pipeline.getSize(),
+                                                                                   z - fdZ * pipeline.getSize()).getBiome();
    }
    
-    private static final class SeededVector {
-        private final int x;
-        private final int z;
-        private final long seed;
-        
-        private SeededVector(int x, int z, long seed) {
-            this.x = x;
-            this.z = z;
-            this.seed = seed;
-        }
-        
-        @Override
-        public int hashCode() {
-            int result = 0;
-            result = 31 * result + ((int) (seed ^ (seed >>> 32)));
-            result = 31 * result + x;
-            result = 31 * result + z;
-            return result;
-        }
-        
-        @Override
-        public boolean equals(Object obj) {
-            if(!(obj instanceof SeededVector)) return false;
-            SeededVector that = (SeededVector) obj;
-            
-            return this.seed == that.seed && this.x == that.x && this.z == that.z;
-        }
+    @Override
+    public Iterable<Biome> getBiomes() {
+        return biomes;
+    }
+    
+    private record SeededVector(int x, int z, long seed) {
    }
 }
@@ -1,8 +0,0 @@
-package com.dfsek.terra.addons.biome.pipeline.api;
-
-import com.dfsek.terra.api.world.biome.TerraBiome;
-
-
-public interface BiomeExpander {
-    TerraBiome getBetween(double x, double z, long seed, TerraBiome... others);
-}
@@ -1,7 +1,16 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.api;

+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeExpander;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeMutator;
 import com.dfsek.terra.addons.biome.pipeline.source.BiomeSource;
-import com.dfsek.terra.api.world.biome.TerraBiome;


 public interface BiomeHolder {
@@ -11,7 +20,7 @@ public interface BiomeHolder {
    
    void fill(BiomeSource source, long seed);
    
-    TerraBiome getBiome(int x, int z);
+    BiomeDelegate getBiome(int x, int z);
    
-    TerraBiome getBiomeRaw(int x, int z);
+    BiomeDelegate getBiomeRaw(int x, int z);
 }
@@ -1,25 +0,0 @@
-package com.dfsek.terra.addons.biome.pipeline.api;
-
-import com.dfsek.terra.api.world.biome.TerraBiome;
-
-
-public interface BiomeMutator {
-    TerraBiome mutate(ViewPoint viewPoint, double x, double z, long seed);
-    
-    class ViewPoint {
-        private final BiomeHolder biomes;
-        private final int offX;
-        private final int offZ;
-        
-        public ViewPoint(BiomeHolder biomes, int offX, int offZ) {
-            this.biomes = biomes;
-            this.offX = offX;
-            this.offZ = offZ;
-        }
-        
-        
-        public TerraBiome getBiome(int x, int z) {
-            return biomes.getBiomeRaw(x + offX, z + offZ);
-        }
-    }
-}
@@ -1,8 +0,0 @@
-package com.dfsek.terra.addons.biome.pipeline.api;
-
-public interface Stage {
-    BiomeHolder apply(BiomeHolder in, long seed);
-    
-    boolean isExpansion();
-    
-}
@@ -0,0 +1,35 @@
+package com.dfsek.terra.addons.biome.pipeline.api.delegate;
+
+import java.util.Set;
+
+import com.dfsek.terra.api.registry.key.StringIdentifiable;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public interface BiomeDelegate extends StringIdentifiable {
+    static BiomeDelegate ephemeral(String id) {
+        return new EphemeralBiomeDelegate(id);
+    }
+    
+    static BiomeDelegate from(Biome biome) {
+        return new DelegatedBiome(biome);
+    }
+    
+    static BiomeDelegate self() {
+        return SelfDelegate.INSTANCE;
+    }
+    
+    Biome getBiome();
+    
+    Set<String> getTags();
+    
+    default boolean isEphemeral() {
+        return false;
+    }
+    
+    default boolean isSelf() {
+        return false;
+    }
+    
+    
+}
@@ -0,0 +1,40 @@
+package com.dfsek.terra.addons.biome.pipeline.api.delegate;
+
+import java.util.Set;
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+final class DelegatedBiome implements BiomeDelegate {
+    private final Biome biome;
+    
+    public DelegatedBiome(Biome biome) {
+        this.biome = biome;
+    }
+    
+    @Override
+    public Biome getBiome() {
+        return biome;
+    }
+    
+    @Override
+    public int hashCode() {
+        return biome.hashCode();
+    }
+    
+    @Override
+    public boolean equals(Object obj) {
+        if(!(obj instanceof DelegatedBiome that)) return false;
+        return that.biome.equals(this.biome);
+    }
+    
+    @Override
+    public Set<String> getTags() {
+        return biome.getTags();
+    }
+    
+    @Override
+    public String getID() {
+        return biome.getID();
+    }
+}
@@ -0,0 +1,51 @@
+package com.dfsek.terra.addons.biome.pipeline.api.delegate;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+final class EphemeralBiomeDelegate implements BiomeDelegate {
+    private final Set<String> tags;
+    private final String id;
+    
+    public EphemeralBiomeDelegate(String id) {
+        this.id = id;
+        tags = new HashSet<>();
+        tags.add(id);
+        tags.add("ALL");
+    }
+    
+    @Override
+    public Biome getBiome() {
+        throw new UnsupportedOperationException("Cannot get biome from ephemeral delegate");
+    }
+    
+    @Override
+    public Set<String> getTags() {
+        return tags;
+    }
+    
+    @Override
+    public String getID() {
+        return id;
+    }
+    
+    @Override
+    public boolean isEphemeral() {
+        return true;
+    }
+    
+    @Override
+    public int hashCode() {
+        return id.hashCode();
+    }
+    
+    @Override
+    public boolean equals(Object obj) {
+        if(!(obj instanceof EphemeralBiomeDelegate that)) return false;
+        
+        return this.id.equals(that.id);
+    }
+}
@@ -0,0 +1,40 @@
+package com.dfsek.terra.addons.biome.pipeline.api.delegate;
+
+import java.util.Collections;
+import java.util.Set;
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+final class SelfDelegate implements BiomeDelegate {
+    public static final SelfDelegate INSTANCE = new SelfDelegate();
+    
+    private SelfDelegate() {
+
+    }
+    
+    @Override
+    public Biome getBiome() {
+        throw new UnsupportedOperationException("Cannot get biome from self delegate");
+    }
+    
+    @Override
+    public boolean isSelf() {
+        return true;
+    }
+    
+    @Override
+    public boolean isEphemeral() {
+        return true;
+    }
+    
+    @Override
+    public Set<String> getTags() {
+        return Collections.emptySet();
+    }
+    
+    @Override
+    public String getID() {
+        return "SELF";
+    }
+}
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.api.stage;
+
+import com.dfsek.terra.addons.biome.pipeline.api.BiomeHolder;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+
+
+public interface Stage {
+    BiomeHolder apply(BiomeHolder in, long seed);
+    
+    boolean isExpansion();
+    
+    Iterable<BiomeDelegate> getBiomes(Iterable<BiomeDelegate> biomes);
+}
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.api.stage.type;
+
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+
+
+public interface BiomeExpander {
+    BiomeDelegate getBetween(double x, double z, long seed, BiomeDelegate... others);
+}
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.api.stage.type;
+
+import com.dfsek.terra.addons.biome.pipeline.api.BiomeHolder;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+
+
+public interface BiomeMutator {
+    BiomeDelegate mutate(ViewPoint viewPoint, double x, double z, long seed);
+    
+    default Iterable<BiomeDelegate> getBiomes(Iterable<BiomeDelegate> biomes) {
+        return biomes;
+    }
+    
+    class ViewPoint {
+        private final BiomeHolder biomes;
+        private final int offX;
+        private final int offZ;
+        
+        public ViewPoint(BiomeHolder biomes, int offX, int offZ) {
+            this.biomes = biomes;
+            this.offX = offX;
+            this.offZ = offZ;
+        }
+        
+        
+        public BiomeDelegate getBiome(int x, int z) {
+            return biomes.getBiomeRaw(x + offX, z + offZ);
+        }
+    }
+}
@@ -0,0 +1,32 @@
+package com.dfsek.terra.addons.biome.pipeline.config;
+
+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.loader.type.TypeLoader;
+import org.jetbrains.annotations.NotNull;
+
+import java.lang.reflect.AnnotatedType;
+
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.api.registry.Registry;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public class BiomeDelegateLoader implements TypeLoader<BiomeDelegate> {
+    private final Registry<Biome> biomeRegistry;
+    
+    public BiomeDelegateLoader(Registry<Biome> biomeRegistry) {
+        this.biomeRegistry = biomeRegistry;
+    }
+    
+    @Override
+    public BiomeDelegate load(@NotNull AnnotatedType t, @NotNull Object c, @NotNull ConfigLoader loader, DepthTracker depthTracker)
+    throws LoadException {
+        if(c.equals("SELF")) return BiomeDelegate.self();
+        return biomeRegistry
+                .getByID((String) c)
+                .map(BiomeDelegate::from)
+                .orElseGet(() -> BiomeDelegate.ephemeral((String) c));
+    }
+}
@@ -1,41 +1,54 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config;

-import com.dfsek.tectonic.annotations.Default;
-import com.dfsek.tectonic.annotations.Value;
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;

 import java.util.List;

 import com.dfsek.terra.addons.biome.pipeline.BiomePipeline;
 import com.dfsek.terra.addons.biome.pipeline.BiomePipelineProvider;
-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.addons.biome.pipeline.source.BiomeSource;
-import com.dfsek.terra.api.TerraPlugin;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;


@SuppressWarnings({ "FieldMayBeFinal", "unused" })
 public class BiomePipelineTemplate extends BiomeProviderTemplate {
-    private final TerraPlugin main;
    @Value("pipeline.initial-size")
    @Default
+    @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
+                 and subtract 1. (The size is also printed to the server console if you
+                 have debug mode enabled)""")
    private @Meta int initialSize = 2;
    
-    @Value("pipeline.stages")
-    private @Meta List<@Meta Stage> stages;
-    
    @Value("pipeline.source")
+    @Description("The Biome Source to use for initial population of biomes.")
    private @Meta BiomeSource source;
    
-    public BiomePipelineTemplate(TerraPlugin main) {
-        this.main = main;
-    }
+    @Value("pipeline.stages")
+    @Description("A list of pipeline stages to apply to the result of #source")
+    private @Meta List<@Meta Stage> stages;
    
    @Override
    public BiomeProvider get() {
        BiomePipeline.BiomePipelineBuilder biomePipelineBuilder = new BiomePipeline.BiomePipelineBuilder(initialSize);
        stages.forEach(biomePipelineBuilder::addStage);
        BiomePipeline pipeline = biomePipelineBuilder.build(source);
-        return new BiomePipelineProvider(pipeline, main, resolution, blend, blendAmp);
+        return new BiomePipelineProvider(pipeline, resolution, blend, blendAmp);
    }
 }
@@ -1,18 +0,0 @@
-package com.dfsek.terra.addons.biome.pipeline.config;
-
-import com.dfsek.tectonic.exception.LoadException;
-import com.dfsek.tectonic.loading.ConfigLoader;
-import com.dfsek.tectonic.loading.TypeLoader;
-
-import java.lang.reflect.AnnotatedType;
-
-import com.dfsek.terra.addons.biome.pipeline.BiomePipelineProvider;
-import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
-
-
-public class BiomeProviderLoader implements TypeLoader<BiomeProvider> {
-    @Override
-    public BiomeProvider load(AnnotatedType t, Object c, ConfigLoader loader) throws LoadException {
-        return loader.loadType(BiomePipelineProvider.class, c); // TODO: actually implement this lol
-    }
-}
@@ -1,8 +1,16 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config;

-import com.dfsek.tectonic.annotations.Default;
-import com.dfsek.tectonic.annotations.Value;
-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;

 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.api.noise.NoiseSampler;
@@ -12,11 +20,18 @@ import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
 public abstract class BiomeProviderTemplate implements ObjectTemplate<BiomeProvider> {
    @Value("resolution")
    @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;
-    @Value("blend.noise")
+    @Value("blend.sampler")
    @Default
+    @Description("A sampler to use for blending the edges of biomes via domain warping.")
    protected @Meta NoiseSampler blend = NoiseSampler.zero();
    @Value("blend.amplitude")
    @Default
+    @Description("The amplitude at which to perform blending.")
    protected @Meta double blendAmp = 0d;
 }
@@ -1,24 +0,0 @@
-package com.dfsek.terra.addons.biome.pipeline.config;
-
-import com.dfsek.tectonic.annotations.Value;
-
-import com.dfsek.terra.addons.biome.pipeline.source.BiomeSource;
-import com.dfsek.terra.addons.biome.pipeline.source.NoiseSource;
-import com.dfsek.terra.api.config.meta.Meta;
-import com.dfsek.terra.api.noise.NoiseSampler;
-import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;
-
-
-public class NoiseSourceTemplate extends SourceTemplate {
-    @Value("noise")
-    private @Meta NoiseSampler noise;
-    
-    @Value("biomes")
-    private @Meta ProbabilityCollection<@Meta TerraBiome> biomes;
-    
-    @Override
-    public BiomeSource get() {
-        return new NoiseSource(biomes, noise);
-    }
-}
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config;
+
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.source.BiomeSource;
+import com.dfsek.terra.addons.biome.pipeline.source.SamplerSource;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+public class SamplerSourceTemplate extends SourceTemplate {
+    @Value("sampler")
+    @Description("The sampler used to distribute biomes.")
+    private @Meta NoiseSampler noise;
+    
+    @Value("biomes")
+    @Description("The biomes to be distributed.")
+    private @Meta ProbabilityCollection<@Meta BiomeDelegate> biomes;
+    
+    @Override
+    public BiomeSource get() {
+        return new SamplerSource(biomes, noise);
+    }
+}
@@ -1,6 +1,13 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config;

-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;

 import com.dfsek.terra.addons.biome.pipeline.source.BiomeSource;

@@ -1,14 +1,23 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config.stage;

-import com.dfsek.tectonic.annotations.Value;
-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;

-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.api.noise.NoiseSampler;


 public abstract class StageTemplate implements ObjectTemplate<Stage> {
-    @Value("noise")
+    @Value("sampler")
+    @Description("Sampler to use for stage distribution.")
    protected @Meta NoiseSampler noise;
 }
@@ -1,6 +1,13 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config.stage.expander;

-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.StageTemplate;
 import com.dfsek.terra.addons.biome.pipeline.expand.FractalExpander;
 import com.dfsek.terra.addons.biome.pipeline.stages.ExpanderStage;
@@ -1,16 +1,23 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config.stage.mutator;

-import com.dfsek.tectonic.annotations.Value;
+import com.dfsek.tectonic.api.config.template.annotations.Value;

 import java.util.Map;

-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.StageTemplate;
 import com.dfsek.terra.addons.biome.pipeline.mutator.BorderListMutator;
 import com.dfsek.terra.addons.biome.pipeline.stages.MutatorStage;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;


@SuppressWarnings("unused")
@@ -22,10 +29,10 @@ public class BorderListMutatorTemplate extends StageTemplate {
    private @Meta String defaultReplace;
    
    @Value("default-to")
-    private @Meta ProbabilityCollection<@Meta TerraBiome> defaultTo;
+    private @Meta ProbabilityCollection<@Meta BiomeDelegate> defaultTo;
    
    @Value("replace")
-    private @Meta Map<@Meta TerraBiome, @Meta ProbabilityCollection<@Meta TerraBiome>> replace;
+    private @Meta Map<@Meta BiomeDelegate, @Meta ProbabilityCollection<@Meta BiomeDelegate>> replace;
    
    
    @Override
@@ -1,14 +1,21 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config.stage.mutator;

-import com.dfsek.tectonic.annotations.Value;
+import com.dfsek.tectonic.api.config.template.annotations.Value;

-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.StageTemplate;
 import com.dfsek.terra.addons.biome.pipeline.mutator.BorderMutator;
 import com.dfsek.terra.addons.biome.pipeline.stages.MutatorStage;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;


@SuppressWarnings("unused")
@@ -20,7 +27,7 @@ public class BorderMutatorTemplate extends StageTemplate {
    private @Meta String replace;
    
    @Value("to")
-    private @Meta ProbabilityCollection<@Meta TerraBiome> to;
+    private @Meta ProbabilityCollection<@Meta BiomeDelegate> to;
    
    @Override
    public Stage get() {
@@ -1,16 +1,23 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config.stage.mutator;

-import com.dfsek.tectonic.annotations.Value;
+import com.dfsek.tectonic.api.config.template.annotations.Value;

 import java.util.Map;

-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.StageTemplate;
 import com.dfsek.terra.addons.biome.pipeline.mutator.ReplaceListMutator;
 import com.dfsek.terra.addons.biome.pipeline.stages.MutatorStage;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;


@SuppressWarnings("unused")
@@ -19,10 +26,10 @@ public class ReplaceListMutatorTemplate extends StageTemplate {
    private @Meta String defaultFrom;
    
    @Value("default-to")
-    private @Meta ProbabilityCollection<@Meta TerraBiome> defaultTo;
+    private @Meta ProbabilityCollection<@Meta BiomeDelegate> defaultTo;
    
    @Value("to")
-    private @Meta Map<@Meta TerraBiome, @Meta ProbabilityCollection<@Meta TerraBiome>> replace;
+    private @Meta Map<@Meta BiomeDelegate, @Meta ProbabilityCollection<@Meta BiomeDelegate>> replace;
    
    @Override
    public Stage get() {
@@ -1,14 +1,21 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config.stage.mutator;

-import com.dfsek.tectonic.annotations.Value;
+import com.dfsek.tectonic.api.config.template.annotations.Value;

-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.StageTemplate;
 import com.dfsek.terra.addons.biome.pipeline.mutator.ReplaceMutator;
 import com.dfsek.terra.addons.biome.pipeline.stages.MutatorStage;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;


@SuppressWarnings("unused")
@@ -17,7 +24,7 @@ public class ReplaceMutatorTemplate extends StageTemplate {
    private @Meta String from;
    
    @Value("to")
-    private @Meta ProbabilityCollection<@Meta TerraBiome> to;
+    private @Meta ProbabilityCollection<@Meta BiomeDelegate> to;
    
    @Override
    public Stage get() {
@@ -1,6 +1,13 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.config.stage.mutator;

-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
 import com.dfsek.terra.addons.biome.pipeline.config.stage.StageTemplate;
 import com.dfsek.terra.addons.biome.pipeline.mutator.SmoothMutator;
 import com.dfsek.terra.addons.biome.pipeline.stages.MutatorStage;
@@ -1,9 +1,16 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.expand;

-import com.dfsek.terra.addons.biome.pipeline.api.BiomeExpander;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeExpander;
 import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.util.MathUtil;
-import com.dfsek.terra.api.world.biome.TerraBiome;


 public class FractalExpander implements BiomeExpander {
@@ -14,7 +21,7 @@ public class FractalExpander implements BiomeExpander {
    }
    
    @Override
-    public TerraBiome getBetween(double x, double z, long seed, TerraBiome... others) {
-        return others[MathUtil.normalizeIndex(sampler.getNoiseSeeded(seed, x, z), others.length)];
+    public BiomeDelegate getBetween(double x, double z, long seed, BiomeDelegate... others) {
+        return others[MathUtil.normalizeIndex(sampler.noise(seed, x, z), others.length)];
    }
 }
@@ -1,22 +1,32 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.mutator;

+import java.util.HashSet;
 import java.util.Map;
+import java.util.Set;
+import java.util.function.Predicate;

-import com.dfsek.terra.addons.biome.pipeline.api.BiomeMutator;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeMutator;
 import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;


 public class BorderListMutator implements BiomeMutator {
    private final String border;
    private final NoiseSampler noiseSampler;
-    private final ProbabilityCollection<TerraBiome> replaceDefault;
+    private final ProbabilityCollection<BiomeDelegate> replaceDefault;
    private final String defaultReplace;
-    private final Map<TerraBiome, ProbabilityCollection<TerraBiome>> replace;
+    private final Map<BiomeDelegate, ProbabilityCollection<BiomeDelegate>> replace;
    
-    public BorderListMutator(Map<TerraBiome, ProbabilityCollection<TerraBiome>> replace, String border, String defaultReplace,
-                             NoiseSampler noiseSampler, ProbabilityCollection<TerraBiome> replaceDefault) {
+    public BorderListMutator(Map<BiomeDelegate, ProbabilityCollection<BiomeDelegate>> replace, String border, String defaultReplace,
+                             NoiseSampler noiseSampler, ProbabilityCollection<BiomeDelegate> replaceDefault) {
        this.border = border;
        this.noiseSampler = noiseSampler;
        this.replaceDefault = replaceDefault;
@@ -25,25 +35,33 @@ public class BorderListMutator implements BiomeMutator {
    }
    
    @Override
-    public TerraBiome mutate(ViewPoint viewPoint, double x, double z, long seed) {
-        TerraBiome origin = viewPoint.getBiome(0, 0);
+    public BiomeDelegate mutate(ViewPoint viewPoint, double x, double z, long seed) {
+        BiomeDelegate origin = viewPoint.getBiome(0, 0);
        if(origin.getTags().contains(defaultReplace)) {
            for(int xi = -1; xi <= 1; xi++) {
                for(int zi = -1; zi <= 1; zi++) {
                    if(xi == 0 && zi == 0) continue;
-                    TerraBiome current = viewPoint.getBiome(xi, zi);
-                    if(current == null) continue;
-                    if(current.getTags().contains(border)) {
+                    BiomeDelegate current = viewPoint.getBiome(xi, zi);
+                    if(current != null && current.getTags().contains(border)) {
                        if(replace.containsKey(origin)) {
-                            TerraBiome biome = replace.get(origin).get(noiseSampler, x, z, seed);
-                            return biome == null ? origin : biome;
+                            BiomeDelegate biome = replace.get(origin).get(noiseSampler, x, z, seed);
+                            return biome.isSelf() ? origin : biome;
                        }
-                        TerraBiome biome = replaceDefault.get(noiseSampler, x, z, seed);
-                        return biome == null ? origin : biome;
+                        BiomeDelegate biome = replaceDefault.get(noiseSampler, x, z, seed);
+                        return biome.isSelf() ? origin : biome;
                    }
                }
            }
        }
        return origin;
    }
+    
+    @Override
+    public Iterable<BiomeDelegate> getBiomes(Iterable<BiomeDelegate> biomes) {
+        Set<BiomeDelegate> biomeSet = new HashSet<>();
+        biomes.forEach(biomeSet::add);
+        biomeSet.addAll(replaceDefault.getContents().stream().filter(Predicate.not(BiomeDelegate::isSelf)).toList());
+        replace.forEach((biome, collection) -> biomeSet.addAll(collection.getContents()));
+        return biomeSet;
+    }
 }
@@ -1,18 +1,29 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.mutator;

-import com.dfsek.terra.addons.biome.pipeline.api.BiomeMutator;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.function.Predicate;
+
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeMutator;
 import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;


 public class BorderMutator implements BiomeMutator {
    private final String border;
    private final NoiseSampler noiseSampler;
-    private final ProbabilityCollection<TerraBiome> replace;
+    private final ProbabilityCollection<BiomeDelegate> replace;
    private final String replaceTag;
    
-    public BorderMutator(String border, String replaceTag, NoiseSampler noiseSampler, ProbabilityCollection<TerraBiome> replace) {
+    public BorderMutator(String border, String replaceTag, NoiseSampler noiseSampler, ProbabilityCollection<BiomeDelegate> replace) {
        this.border = border;
        this.noiseSampler = noiseSampler;
        this.replace = replace;
@@ -20,21 +31,36 @@ public class BorderMutator implements BiomeMutator {
    }
    
    @Override
-    public TerraBiome mutate(ViewPoint viewPoint, double x, double z, long seed) {
-        TerraBiome origin = viewPoint.getBiome(0, 0);
+    public BiomeDelegate mutate(ViewPoint viewPoint, double x, double z, long seed) {
+        BiomeDelegate origin = viewPoint.getBiome(0, 0);
        if(origin.getTags().contains(replaceTag)) {
            for(int xi = -1; xi <= 1; xi++) {
                for(int zi = -1; zi <= 1; zi++) {
                    if(xi == 0 && zi == 0) continue;
-                    TerraBiome current = viewPoint.getBiome(xi, zi);
-                    if(current == null) continue;
-                    if(current.getTags().contains(border)) {
-                        TerraBiome biome = replace.get(noiseSampler, x, z, seed);
-                        return biome == null ? origin : biome;
+                    BiomeDelegate current = viewPoint.getBiome(xi, zi);
+                    if(current != null && current.getTags().contains(border)) {
+                        BiomeDelegate biome = replace.get(noiseSampler, x, z, seed);
+                        return biome.isSelf() ? origin : biome;
                    }
                }
            }
        }
        return origin;
    }
+    
+    @Override
+    public Iterable<BiomeDelegate> getBiomes(Iterable<BiomeDelegate> biomes) {
+        Set<BiomeDelegate> biomeSet = new HashSet<>();
+        biomes.forEach(biomeSet::add);
+        biomeSet.addAll(
+                replace
+                        .getContents()
+                        .stream()
+                        .filter(
+                                Predicate.not(BiomeDelegate::isSelf)
+                               )
+                        .toList()
+                       );
+        return biomeSet;
+    }
 }
@@ -1,21 +1,31 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.mutator;

+import java.util.HashSet;
 import java.util.Map;
+import java.util.Set;
+import java.util.stream.Stream;

-import com.dfsek.terra.addons.biome.pipeline.api.BiomeMutator;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeMutator;
 import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;


 public class ReplaceListMutator implements BiomeMutator {
-    private final Map<TerraBiome, ProbabilityCollection<TerraBiome>> replace;
+    private final Map<BiomeDelegate, ProbabilityCollection<BiomeDelegate>> replace;
    private final NoiseSampler sampler;
-    private final ProbabilityCollection<TerraBiome> replaceDefault;
+    private final ProbabilityCollection<BiomeDelegate> replaceDefault;
    private final String defaultTag;
    
-    public ReplaceListMutator(Map<TerraBiome, ProbabilityCollection<TerraBiome>> replace, String defaultTag,
-                              ProbabilityCollection<TerraBiome> replaceDefault, NoiseSampler sampler) {
+    public ReplaceListMutator(Map<BiomeDelegate, ProbabilityCollection<BiomeDelegate>> replace, String defaultTag,
+                              ProbabilityCollection<BiomeDelegate> replaceDefault, NoiseSampler sampler) {
        this.replace = replace;
        this.sampler = sampler;
        this.defaultTag = defaultTag;
@@ -23,16 +33,40 @@ public class ReplaceListMutator implements BiomeMutator {
    }
    
    @Override
-    public TerraBiome mutate(ViewPoint viewPoint, double x, double z, long seed) {
-        TerraBiome center = viewPoint.getBiome(0, 0);
+    public BiomeDelegate mutate(ViewPoint viewPoint, double x, double z, long seed) {
+        BiomeDelegate center = viewPoint.getBiome(0, 0);
        if(replace.containsKey(center)) {
-            TerraBiome biome = replace.get(center).get(sampler, x, z, seed);
-            return biome == null ? viewPoint.getBiome(0, 0) : biome;
+            BiomeDelegate biome = replace.get(center).get(sampler, x, z, seed);
+            return biome.isSelf() ? viewPoint.getBiome(0, 0) : biome;
        }
        if(viewPoint.getBiome(0, 0).getTags().contains(defaultTag)) {
-            TerraBiome biome = replaceDefault.get(sampler, x, z, seed);
-            return biome == null ? viewPoint.getBiome(0, 0) : biome;
+            BiomeDelegate biome = replaceDefault.get(sampler, x, z, seed);
+            return biome.isSelf() ? viewPoint.getBiome(0, 0) : biome;
        }
        return center;
    }
+    
+    @Override
+    public Iterable<BiomeDelegate> getBiomes(Iterable<BiomeDelegate> biomes) {
+        Set<BiomeDelegate> biomeSet = new HashSet<>();
+        
+        Set<BiomeDelegate> reject = new HashSet<>();
+        
+        biomes.forEach(biome -> {
+            if(!biome.getTags().contains(defaultTag) && !replace.containsKey(biome)) {
+                biomeSet.add(biome);
+            } else {
+                reject.add(biome);
+            }
+        });
+        biomeSet.addAll(replaceDefault.getContents().stream().flatMap(terraBiome -> {
+            if(terraBiome.isSelf()) return reject.stream();
+            return Stream.of(terraBiome);
+        }).toList());
+        replace.forEach((biome, collection) -> biomeSet.addAll(collection.getContents().stream().map(terraBiome -> {
+            if(terraBiome.isSelf()) return biome;
+            return terraBiome;
+        }).toList()));
+        return biomeSet;
+    }
 }
@@ -1,28 +1,57 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.mutator;

-import com.dfsek.terra.addons.biome.pipeline.api.BiomeMutator;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.stream.Stream;
+
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeMutator;
 import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;


 public class ReplaceMutator implements BiomeMutator {
    private final String replaceableTag;
-    private final ProbabilityCollection<TerraBiome> replace;
+    private final ProbabilityCollection<BiomeDelegate> replace;
    private final NoiseSampler sampler;
    
-    public ReplaceMutator(String replaceable, ProbabilityCollection<TerraBiome> replace, NoiseSampler sampler) {
+    public ReplaceMutator(String replaceable, ProbabilityCollection<BiomeDelegate> replace, NoiseSampler sampler) {
        this.replaceableTag = replaceable;
        this.replace = replace;
        this.sampler = sampler;
    }
    
    @Override
-    public TerraBiome mutate(ViewPoint viewPoint, double x, double z, long seed) {
+    public BiomeDelegate mutate(ViewPoint viewPoint, double x, double z, long seed) {
        if(viewPoint.getBiome(0, 0).getTags().contains(replaceableTag)) {
-            TerraBiome biome = replace.get(sampler, x, z, seed);
-            return biome == null ? viewPoint.getBiome(0, 0) : biome;
+            BiomeDelegate biome = replace.get(sampler, x, z, seed);
+            return biome.isSelf() ? viewPoint.getBiome(0, 0) : biome;
        }
        return viewPoint.getBiome(0, 0);
    }
+    
+    @Override
+    public Iterable<BiomeDelegate> getBiomes(Iterable<BiomeDelegate> biomes) {
+        Set<BiomeDelegate> biomeSet = new HashSet<>();
+        Set<BiomeDelegate> reject = new HashSet<>();
+        biomes.forEach(biome -> {
+            if(!biome.getTags().contains(replaceableTag)) {
+                biomeSet.add(biome);
+            } else {
+                reject.add(biome);
+            }
+        });
+        biomeSet.addAll(replace.getContents().stream().flatMap(terraBiome -> {
+            if(terraBiome.isSelf()) return reject.stream();
+            return Stream.of(terraBiome);
+        }).toList());
+        return biomeSet;
+    }
 }
@@ -1,11 +1,18 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.mutator;

 import java.util.Objects;

-import com.dfsek.terra.addons.biome.pipeline.api.BiomeMutator;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeMutator;
 import com.dfsek.terra.api.noise.NoiseSampler;
 import com.dfsek.terra.api.util.MathUtil;
-import com.dfsek.terra.api.world.biome.TerraBiome;


 public class SmoothMutator implements BiomeMutator {
@@ -17,18 +24,18 @@ public class SmoothMutator implements BiomeMutator {
    }
    
    @Override
-    public TerraBiome mutate(ViewPoint viewPoint, double x, double z, long seed) {
-        TerraBiome top = viewPoint.getBiome(1, 0);
-        TerraBiome bottom = viewPoint.getBiome(-1, 0);
-        TerraBiome left = viewPoint.getBiome(0, 1);
-        TerraBiome right = viewPoint.getBiome(0, -1);
+    public BiomeDelegate mutate(ViewPoint viewPoint, double x, double z, long seed) {
+        BiomeDelegate top = viewPoint.getBiome(1, 0);
+        BiomeDelegate bottom = viewPoint.getBiome(-1, 0);
+        BiomeDelegate left = viewPoint.getBiome(0, 1);
+        BiomeDelegate right = viewPoint.getBiome(0, -1);
        
        
        boolean vert = Objects.equals(top, bottom) && top != null;
        boolean horiz = Objects.equals(left, right) && left != null;
        
        if(vert && horiz) {
-            return MathUtil.normalizeIndex(sampler.getNoiseSeeded(seed, x, z), 2) == 0 ? left : top;
+            return MathUtil.normalizeIndex(sampler.noise(seed, x, z), 2) == 0 ? left : top;
        }
        
        if(vert) return top;
@@ -1,8 +1,17 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.source;

-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;


 public interface BiomeSource {
-    TerraBiome getBiome(double x, double z, long seed);
+    BiomeDelegate getBiome(double x, double z, long seed);
+    
+    Iterable<BiomeDelegate> getBiomes();
 }
@@ -1,21 +0,0 @@
-package com.dfsek.terra.addons.biome.pipeline.source;
-
-import com.dfsek.terra.api.noise.NoiseSampler;
-import com.dfsek.terra.api.util.collection.ProbabilityCollection;
-import com.dfsek.terra.api.world.biome.TerraBiome;
-
-
-public class NoiseSource implements BiomeSource {
-    private final ProbabilityCollection<TerraBiome> biomes;
-    private final NoiseSampler sampler;
-    
-    public NoiseSource(ProbabilityCollection<TerraBiome> biomes, NoiseSampler sampler) {
-        this.biomes = biomes;
-        this.sampler = sampler;
-    }
-    
-    @Override
-    public TerraBiome getBiome(double x, double z, long seed) {
-        return biomes.get(sampler, x, z, seed);
-    }
-}
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.source;
+
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+public class SamplerSource implements BiomeSource {
+    private final ProbabilityCollection<BiomeDelegate> biomes;
+    private final NoiseSampler sampler;
+    
+    public SamplerSource(ProbabilityCollection<BiomeDelegate> biomes, NoiseSampler sampler) {
+        this.biomes = biomes;
+        this.sampler = sampler;
+    }
+    
+    @Override
+    public BiomeDelegate getBiome(double x, double z, long seed) {
+        return biomes.get(sampler, x, z, seed);
+    }
+    
+    @Override
+    public Iterable<BiomeDelegate> getBiomes() {
+        return biomes.getContents();
+    }
+}
@@ -1,8 +1,16 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.stages;

-import com.dfsek.terra.addons.biome.pipeline.api.BiomeExpander;
 import com.dfsek.terra.addons.biome.pipeline.api.BiomeHolder;
-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeExpander;


 public class ExpanderStage implements Stage {
@@ -22,7 +30,8 @@ public class ExpanderStage implements Stage {
        return true;
    }
    
-    public enum Type {
-        FRACTAL
+    @Override
+    public Iterable<BiomeDelegate> getBiomes(Iterable<BiomeDelegate> biomes) {
+        return biomes;
    }
 }
@@ -1,8 +1,16 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.pipeline.stages;

 import com.dfsek.terra.addons.biome.pipeline.api.BiomeHolder;
-import com.dfsek.terra.addons.biome.pipeline.api.BiomeMutator;
-import com.dfsek.terra.addons.biome.pipeline.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.delegate.BiomeDelegate;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.Stage;
+import com.dfsek.terra.addons.biome.pipeline.api.stage.type.BiomeMutator;


 public class MutatorStage implements Stage {
@@ -23,6 +31,11 @@ public class MutatorStage implements Stage {
        return false;
    }
    
+    @Override
+    public Iterable<BiomeDelegate> getBiomes(Iterable<BiomeDelegate> biomes) {
+        return mutator.getBiomes(biomes);
+    }
+    
    public enum Type {
        REPLACE,
        REPLACE_LIST,
@@ -0,0 +1,12 @@
+schema-version: 1
+contributors:
+  - Terra contributors
+id: biome-provider-pipeline
+version: @VERSION@
+entrypoints:
+  - "com.dfsek.terra.addons.biome.pipeline.BiomePipelineAddon"
+website:
+  issues: https://github.com/PolyhedralDev/Terra/issues
+  source: https://github.com/PolyhedralDev/Terra
+  docs: https://terra.polydev.org
+license: MIT License
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -1,2 +1,5 @@
+version = version("1.0.0")
+
 dependencies {
+    compileOnlyApi(project(":common:addons:manifest-addon-loader"))
 }
@@ -1,18 +1,32 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.single;

-import com.dfsek.terra.api.world.biome.TerraBiome;
+import java.util.Collections;
+
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;


 public class SingleBiomeProvider implements BiomeProvider {
-    private final TerraBiome biome;
+    private final Biome biome;
    
-    public SingleBiomeProvider(TerraBiome biome) {
+    public SingleBiomeProvider(Biome biome) {
        this.biome = biome;
    }
    
    @Override
-    public TerraBiome getBiome(int x, int z, long seed) {
+    public Biome getBiome(int x, int y, int z, long seed) {
        return biome;
    }
+    
+    @Override
+    public Iterable<Biome> getBiomes() {
+        return Collections.singleton(biome);
+    }
 }
@@ -1,42 +1,47 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.single;

-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;

 import java.util.function.Supplier;

-import com.dfsek.terra.api.TerraPlugin;
-import com.dfsek.terra.api.addon.TerraAddon;
-import com.dfsek.terra.api.addon.annotations.Addon;
-import com.dfsek.terra.api.addon.annotations.Author;
-import com.dfsek.terra.api.addon.annotations.Version;
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
+import com.dfsek.terra.api.Platform;
+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.injection.annotations.Inject;
+import com.dfsek.terra.api.inject.annotations.Inject;
 import com.dfsek.terra.api.registry.CheckedRegistry;
 import com.dfsek.terra.api.util.reflection.TypeKey;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;


-@Addon("biome-provider-single")
-@Author("Terra")
-@Version("1.0.0")
-public class SingleBiomeProviderAddon extends TerraAddon {
+public class SingleBiomeProviderAddon implements AddonInitializer {
    public static final TypeKey<Supplier<ObjectTemplate<BiomeProvider>>> PROVIDER_REGISTRY_KEY = new TypeKey<>() {
    };
    
    @Inject
-    private TerraPlugin main;
+    private Platform platform;
+    
+    @Inject
+    private BaseAddon addon;
    
    @Override
    public void initialize() {
-        main.getEventManager()
-            .getHandler(FunctionalEventHandler.class)
-            .register(this, ConfigPackPreLoadEvent.class)
-            .then(event -> {
-                CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
-                        PROVIDER_REGISTRY_KEY);
-                providerRegistry.register("SINGLE", SingleBiomeProviderTemplate::new);
-            })
-            .failThrough();
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPreLoadEvent.class)
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
+                            PROVIDER_REGISTRY_KEY);
+                    providerRegistry.register(addon.key("SINGLE"), SingleBiomeProviderTemplate::new);
+                })
+                .failThrough();
    }
 }
@@ -1,16 +1,23 @@
+/*
+ * Copyright (c) 2020-2021 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.biome.single;

-import com.dfsek.tectonic.annotations.Value;
-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;

 import com.dfsek.terra.api.config.meta.Meta;
-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;


 public class SingleBiomeProviderTemplate implements ObjectTemplate<BiomeProvider> {
    @Value("biome")
-    private @Meta TerraBiome biome;
+    private @Meta Biome biome;
    
    @Override
    public BiomeProvider get() {
@@ -0,0 +1,12 @@
+schema-version: 1
+contributors:
+  - Terra contributors
+id: biome-provider-single
+version: @VERSION@
+entrypoints:
+  - "com.dfsek.terra.addons.biome.single.SingleBiomeProviderAddon"
+website:
+  issues: https://github.com/PolyhedralDev/Terra/issues
+  source: https://github.com/PolyhedralDev/Terra
+  docs: https://terra.polydev.org
+license: MIT License
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -1,2 +1,12 @@
+version = version("1.0.0")
+
 dependencies {
+    compileOnlyApi(project(":common:addons:manifest-addon-loader"))
+    
+    implementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
+    testImplementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
+}
+
+tasks.named<com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar>("shadowJar") {
+    relocate("net.jafama", "com.dfsek.terra.addons.chunkgenerator.lib.jafama")
 }
@@ -1,30 +0,0 @@
-package com.dfsek.terra.addons.chunkgenerator;
-
-import com.dfsek.tectonic.annotations.Default;
-import com.dfsek.tectonic.annotations.Value;
-import com.dfsek.tectonic.loading.object.ObjectTemplate;
-
-import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolder;
-import com.dfsek.terra.addons.chunkgenerator.palette.PaletteInfo;
-import com.dfsek.terra.addons.chunkgenerator.palette.SlantHolder;
-import com.dfsek.terra.api.config.meta.Meta;
-import com.dfsek.terra.api.world.generator.Palette;
-
-
-public class BiomePaletteTemplate implements ObjectTemplate<PaletteInfo> {
-    @Value("slant")
-    @Default
-    private final @Meta SlantHolder slant;
-    @Value("palette")
-    private @Meta PaletteHolder palette;
-    @Value("ocean.level")
-    private @Meta int seaLevel;
-    
-    @Value("ocean.palette")
-    private @Meta Palette oceanPalette;
-    
-    @Override
-    public PaletteInfo get() {
-        return new PaletteInfo(palette, slant, oceanPalette, seaLevel);
-    }
-}
@@ -1,52 +1,62 @@
+/*
+ * Copyright (c) 2020-2021 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;

-import com.dfsek.terra.addons.chunkgenerator.generation.generators.NoiseChunkGenerator3D;
-import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolder;
-import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolderLoader;
-import com.dfsek.terra.addons.chunkgenerator.palette.SlantHolder;
-import com.dfsek.terra.addons.chunkgenerator.palette.SlantHolderLoader;
-import com.dfsek.terra.api.TerraPlugin;
-import com.dfsek.terra.api.addon.TerraAddon;
-import com.dfsek.terra.api.addon.annotations.Addon;
-import com.dfsek.terra.api.addon.annotations.Author;
-import com.dfsek.terra.api.addon.annotations.Version;
+import com.dfsek.terra.addons.chunkgenerator.config.NoiseChunkGeneratorPackConfigTemplate;
+import com.dfsek.terra.addons.chunkgenerator.config.noise.BiomeNoiseConfigTemplate;
+import com.dfsek.terra.addons.chunkgenerator.config.palette.BiomePaletteTemplate;
+import com.dfsek.terra.addons.chunkgenerator.config.palette.SlantLayer;
+import com.dfsek.terra.addons.chunkgenerator.generation.NoiseChunkGenerator3D;
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
+import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.addon.BaseAddon;
 import com.dfsek.terra.api.event.events.config.ConfigurationLoadEvent;
 import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
 import com.dfsek.terra.api.event.functional.FunctionalEventHandler;
-import com.dfsek.terra.api.injection.annotations.Inject;
-import com.dfsek.terra.api.world.biome.TerraBiome;
-import com.dfsek.terra.api.world.generator.ChunkGeneratorProvider;
+import com.dfsek.terra.api.inject.annotations.Inject;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.chunk.generation.util.provider.ChunkGeneratorProvider;


-@Addon("chunk-generator-noise-3d")
-@Author("Terra")
-@Version("1.0.0")
-public class NoiseChunkGenerator3DAddon extends TerraAddon {
+public class NoiseChunkGenerator3DAddon implements AddonInitializer {
    @Inject
-    private TerraPlugin main;
+    private Platform platform;
+    
+    @Inject
+    private BaseAddon addon;
    
    @Override
    public void initialize() {
-        main.getEventManager()
-            .getHandler(FunctionalEventHandler.class)
-            .register(this, ConfigPackPreLoadEvent.class)
-            .then(event -> {
-                event.getPack().getOrCreateRegistry(ChunkGeneratorProvider.class).register("NOISE_3D",
-                                                                                           pack -> new NoiseChunkGenerator3D(pack, main));
-                event.getPack()
-                     .applyLoader(SlantHolder.class, new SlantHolderLoader())
-                     .applyLoader(PaletteHolder.class, new PaletteHolderLoader());
-            })
-            .failThrough();
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPreLoadEvent.class)
+                .then(event -> {
+                    NoiseChunkGeneratorPackConfigTemplate config = event.loadTemplate(new NoiseChunkGeneratorPackConfigTemplate());
+            
+                    event.getPack()
+                         .getOrCreateRegistry(ChunkGeneratorProvider.class)
+                         .register(addon.key("NOISE_3D"),
+                                   pack -> new NoiseChunkGenerator3D(platform, config.getElevationBlend(), config.getHorizontalRes(),
+                                                                     config.getVerticalRes()));
+                    event.getPack()
+                         .applyLoader(SlantLayer.class, SlantLayer::new);
+                })
+                .failThrough();
        
-        main.getEventManager()
-            .getHandler(FunctionalEventHandler.class)
-            .register(this, ConfigurationLoadEvent.class)
-            .then(event -> {
-                if(event.is(TerraBiome.class)) {
-                    event.getLoadedObject(TerraBiome.class).getContext().put(event.load(new BiomePaletteTemplate()).get());
-                }
-            })
-            .failThrough();
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigurationLoadEvent.class)
+                .then(event -> {
+                    if(event.is(Biome.class)) {
+                        event.getLoadedObject(Biome.class).getContext().put(event.load(new BiomePaletteTemplate(platform)).get());
+                        event.getLoadedObject(Biome.class).getContext().put(event.load(new BiomeNoiseConfigTemplate()).get());
+                    }
+                })
+                .failThrough();
    }
 }
@@ -1,23 +0,0 @@
-package com.dfsek.terra.addons.chunkgenerator;
-
-import com.dfsek.terra.addons.chunkgenerator.palette.PaletteInfo;
-import com.dfsek.terra.addons.chunkgenerator.palette.SlantHolder;
-import com.dfsek.terra.api.util.MathUtil;
-import com.dfsek.terra.api.world.biome.GenerationSettings;
-import com.dfsek.terra.api.world.generator.Palette;
-import com.dfsek.terra.api.world.generator.Sampler;
-
-
-public final class PaletteUtil {
-    public static Palette getPalette(int x, int y, int z, GenerationSettings c, Sampler sampler, PaletteInfo paletteInfo) {
-        SlantHolder slant = paletteInfo.getSlantHolder();
-        if(slant != null) {
-            double slope = MathUtil.derivative(sampler, x, y, z);
-            if(slope > slant.getMinSlope()) {
-                return slant.getPalette(slope).getPalette(y);
-            }
-        }
-        
-        return paletteInfo.getPaletteHolder().getPalette(y);
-    }
-}
@@ -0,0 +1,34 @@
+package com.dfsek.terra.addons.chunkgenerator.config;
+
+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.api.config.meta.Meta;
+
+
+public class NoiseChunkGeneratorPackConfigTemplate implements ConfigTemplate {
+    @Value("blend.terrain.elevation")
+    @Default
+    private @Meta int elevationBlend = 4;
+    
+    @Value("carving.resolution.horizontal")
+    @Default
+    private @Meta int horizontalRes = 4;
+    
+    @Value("carving.resolution.vertical")
+    @Default
+    private @Meta int verticalRes = 2;
+    
+    public int getElevationBlend() {
+        return elevationBlend;
+    }
+    
+    public int getHorizontalRes() {
+        return horizontalRes;
+    }
+    
+    public int getVerticalRes() {
+        return verticalRes;
+    }
+}
@@ -0,0 +1,44 @@
+package com.dfsek.terra.addons.chunkgenerator.config.noise;
+
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class BiomeNoiseConfigTemplate implements ObjectTemplate<BiomeNoiseProperties> {
+    @Value("terrain.sampler")
+    private @Meta NoiseSampler baseSampler;
+    
+    @Value("terrain.sampler-2d")
+    @Default
+    private @Meta NoiseSampler elevationSampler = NoiseSampler.zero();
+    
+    @Value("carving.sampler")
+    @Default
+    private @Meta NoiseSampler carvingSampler = NoiseSampler.zero();
+    
+    @Value("terrain.blend.distance")
+    @Default
+    private @Meta int blendDistance = 3;
+    
+    @Value("terrain.blend.weight")
+    @Default
+    private @Meta double blendWeight = 1;
+    
+    @Value("terrain.blend.step")
+    @Default
+    private @Meta int blendStep = 4;
+    
+    @Value("terrain.blend.weight-2d")
+    @Default
+    private @Meta double elevationWeight = 1;
+    
+    @Override
+    public BiomeNoiseProperties get() {
+        return new BiomeNoiseProperties(baseSampler, elevationSampler, carvingSampler, blendDistance, blendStep, blendWeight,
+                                        elevationWeight);
+    }
+}
@@ -0,0 +1,15 @@
+package com.dfsek.terra.addons.chunkgenerator.config.noise;
+
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.properties.Properties;
+
+
+public record BiomeNoiseProperties(NoiseSampler base,
+                                   NoiseSampler elevation,
+                                   NoiseSampler carving,
+                                   int blendDistance,
+                                   int blendStep,
+                                   double blendWeight,
+                                   double elevationWeight) implements Properties {
+    
+}
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2020-2021 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.config.palette;
+
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.TreeMap;
+
+import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolder;
+import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolderBuilder;
+import com.dfsek.terra.addons.chunkgenerator.palette.SlantHolder;
+import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.block.state.BlockState;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.world.chunk.generation.util.Palette;
+
+
+public class BiomePaletteTemplate implements ObjectTemplate<PaletteInfo> {
+    private final Platform platform;
+    
+    @Value("slant")
+    @Default
+    @Description("The slant palettes to use in this biome.")
+    private @Meta List<@Meta SlantLayer> slant = Collections.emptyList();
+    
+    @Value("slant-depth")
+    @Default
+    @Description("The maximum depth at which to apply a slant palette.")
+    private @Meta int slantDepth = Integer.MAX_VALUE;
+    
+    @Value("palette")
+    @Description("The palettes to use in this biome.")
+    private @Meta List<@Meta Map<@Meta Palette, @Meta Integer>> palettes;
+    
+    @Value("ocean.level")
+    @Description("Sea level in this biome. Defaults to zero")
+    @Default
+    private @Meta int seaLevel = 0;
+    
+    @Value("ocean.palette")
+    @Description("The palette to use for the ocean in this biome. Defaults to a blank palette.")
+    @Default
+    private @Meta Palette oceanPalette = new Palette() {
+        @Override
+        public BlockState get(int layer, double x, double y, double z, long seed) {
+            return platform.getWorldHandle().air();
+        }
+    };
+    
+    public BiomePaletteTemplate(Platform platform) { this.platform = platform; }
+    
+    @Override
+    public PaletteInfo get() {
+        PaletteHolderBuilder builder = new PaletteHolderBuilder();
+        for(Map<Palette, Integer> layer : palettes) {
+            for(Entry<Palette, Integer> entry : layer.entrySet()) {
+                builder.add(entry.getValue(), entry.getKey());
+            }
+        }
+        
+        TreeMap<Double, PaletteHolder> slantLayers = new TreeMap<>();
+        double minThreshold = Double.MAX_VALUE;
+        
+        for(SlantLayer layer : slant) {
+            double threshold = layer.getThreshold();
+            if(threshold < minThreshold) minThreshold = threshold;
+            slantLayers.put(threshold, layer.getPalette());
+        }
+        
+        return new PaletteInfo(builder.build(), SlantHolder.of(slantLayers, minThreshold), oceanPalette, seaLevel, slantDepth);
+    }
+}
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2020-2021 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.config.palette;
+
+import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolder;
+import com.dfsek.terra.addons.chunkgenerator.palette.SlantHolder;
+import com.dfsek.terra.api.properties.Properties;
+import com.dfsek.terra.api.world.chunk.generation.util.Palette;
+
+
+public record PaletteInfo(PaletteHolder paletteHolder,
+                          SlantHolder slantHolder,
+                          Palette ocean,
+                          int seaLevel,
+                          int maxSlantDepth) implements Properties {
+}
@@ -0,0 +1,42 @@
+package com.dfsek.terra.addons.chunkgenerator.config.palette;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolder;
+import com.dfsek.terra.addons.chunkgenerator.palette.PaletteHolderBuilder;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.world.chunk.generation.util.Palette;
+
+
+public class SlantLayer implements ObjectTemplate<SlantLayer> {
+    @Value("threshold")
+    private @Meta double threshold;
+    
+    @Value("palette")
+    private @Meta List<@Meta Map<@Meta Palette, @Meta Integer>> palettes;
+    
+    @Override
+    public SlantLayer get() {
+        return this;
+    }
+    
+    public double getThreshold() {
+        return threshold;
+    }
+    
+    public PaletteHolder getPalette() {
+        PaletteHolderBuilder builder = new PaletteHolderBuilder();
+        for(Map<Palette, Integer> layer : palettes) {
+            for(Entry<Palette, Integer> entry : layer.entrySet()) {
+                builder.add(entry.getValue(), entry.getKey());
+            }
+        }
+        
+        return builder.build();
+    }
+}
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2020-2021 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;
+
+
+import net.jafama.FastMath;
+import org.jetbrains.annotations.NotNull;
+
+import com.dfsek.terra.addons.chunkgenerator.config.palette.PaletteInfo;
+import com.dfsek.terra.addons.chunkgenerator.generation.math.PaletteUtil;
+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.api.Platform;
+import com.dfsek.terra.api.block.state.BlockState;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+import com.dfsek.terra.api.world.chunk.generation.ChunkGenerator;
+import com.dfsek.terra.api.world.chunk.generation.ProtoChunk;
+import com.dfsek.terra.api.world.chunk.generation.util.Palette;
+import com.dfsek.terra.api.world.info.WorldProperties;
+
+
+public class NoiseChunkGenerator3D implements ChunkGenerator {
+    private final Platform platform;
+    
+    private final SamplerProvider samplerCache;
+    
+    private final BlockState air;
+    
+    private final int carverHorizontalResolution;
+    private final int carverVerticalResolution;
+    
+    public NoiseChunkGenerator3D(Platform platform, int elevationBlend, int carverHorizontalResolution,
+                                 int carverVerticalResolution) {
+        this.platform = platform;
+        this.air = platform.getWorldHandle().air();
+        this.carverHorizontalResolution = carverHorizontalResolution;
+        this.carverVerticalResolution = carverVerticalResolution;
+        this.samplerCache = new SamplerProvider(platform, elevationBlend);
+    }
+    
+    @Override
+    @SuppressWarnings("try")
+    public void generateChunkData(@NotNull ProtoChunk chunk, @NotNull WorldProperties world,
+                                  @NotNull BiomeProvider biomeProvider,
+                                  int chunkX, int chunkZ) {
+        platform.getProfiler().push("chunk_base_3d");
+        int xOrig = (chunkX << 4);
+        int zOrig = (chunkZ << 4);
+        
+        Sampler3D sampler = samplerCache.getChunk(chunkX, chunkZ, world, biomeProvider);
+        
+        long seed = world.getSeed();
+        
+        LazilyEvaluatedInterpolator carver = new LazilyEvaluatedInterpolator(biomeProvider,
+                                                                             chunkX,
+                                                                             chunkZ,
+                                                                             world.getMaxHeight(),
+                                                                             world.getMinHeight(),
+                                                                             carverHorizontalResolution,
+                                                                             carverVerticalResolution,
+                                                                             seed);
+        for(int x = 0; x < 16; x++) {
+            for(int z = 0; z < 16; z++) {
+                int paletteLevel = 0;
+                
+                int cx = xOrig + x;
+                int cz = zOrig + z;
+                
+                Biome biome = biomeProvider.getBiome(cx, 0, cz, seed);
+                
+                PaletteInfo paletteInfo = biome.getContext().get(PaletteInfo.class);
+                
+                int sea = paletteInfo.seaLevel();
+                Palette seaPalette = paletteInfo.ocean();
+                
+                BlockState data;
+                for(int y = world.getMaxHeight() - 1; y >= world.getMinHeight(); y--) {
+                    if(sampler.sample(x, y, z) > 0) {
+                        if(carver.sample(x, y, z) <= 0) {
+                            data = PaletteUtil.getPalette(x, y, z, sampler, paletteInfo, paletteLevel).get(paletteLevel, cx, y, cz,
+                                                                                                           seed);
+                            chunk.setBlock(x, y, z, data);
+                        }
+                        
+                        paletteLevel++;
+                    } else if(y <= sea) {
+                        chunk.setBlock(x, y, z, seaPalette.get(sea - y, x + xOrig, y, z + zOrig, seed));
+                        paletteLevel = 0;
+                    } else {
+                        paletteLevel = 0;
+                    }
+                }
+            }
+        }
+        platform.getProfiler().pop("chunk_base_3d");
+    }
+    
+    @Override
+    public BlockState getBlock(WorldProperties world, int x, int y, int z, BiomeProvider biomeProvider) {
+        Biome biome = biomeProvider.getBiome(x, y, z, world.getSeed());
+        Sampler3D sampler = samplerCache.get(x, z, world, biomeProvider);
+        
+        PaletteInfo paletteInfo = biome.getContext().get(PaletteInfo.class);
+        
+        int fdX = FastMath.floorMod(x, 16);
+        int fdZ = FastMath.floorMod(z, 16);
+        
+        Palette palette = PaletteUtil.getPalette(fdX, y, fdZ, sampler, paletteInfo, 0);
+        double noise = sampler.sample(fdX, y, fdZ);
+        if(noise > 0) {
+            int level = 0;
+            for(int yi = world.getMaxHeight() - 1; yi > y; yi--) {
+                if(sampler.sample(fdX, yi, fdZ) > 0) level++;
+                else level = 0;
+            }
+            return palette.get(level, x, y, z, world.getSeed());
+        } else if(y <= paletteInfo.seaLevel()) {
+            return paletteInfo.ocean().get(paletteInfo.seaLevel() - y, x, y, z, world.getSeed());
+        } else return air;
+    }
+    
+    @Override
+    public Palette getPalette(int x, int y, int z, WorldProperties world, BiomeProvider biomeProvider) {
+        return biomeProvider.getBiome(x, y, z, world.getSeed()).getContext().get(PaletteInfo.class).paletteHolder().getPalette(y);
+    }
+    
+    public SamplerProvider samplerProvider() {
+        return samplerCache;
+    }
+}
@@ -1,192 +0,0 @@
-package com.dfsek.terra.addons.chunkgenerator.generation.generators;
-
-import net.jafama.FastMath;
-import org.jetbrains.annotations.NotNull;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Random;
-
-import com.dfsek.terra.addons.chunkgenerator.PaletteUtil;
-import com.dfsek.terra.addons.chunkgenerator.generation.math.samplers.Sampler3D;
-import com.dfsek.terra.addons.chunkgenerator.palette.PaletteInfo;
-import com.dfsek.terra.api.TerraPlugin;
-import com.dfsek.terra.api.block.state.BlockState;
-import com.dfsek.terra.api.block.state.properties.base.Properties;
-import com.dfsek.terra.api.block.state.properties.enums.Direction;
-import com.dfsek.terra.api.config.ConfigPack;
-import com.dfsek.terra.api.profiler.ProfileFrame;
-import com.dfsek.terra.api.vector.Vector3;
-import com.dfsek.terra.api.world.BiomeGrid;
-import com.dfsek.terra.api.world.World;
-import com.dfsek.terra.api.world.biome.GenerationSettings;
-import com.dfsek.terra.api.world.biome.TerraBiome;
-import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
-import com.dfsek.terra.api.world.generator.ChunkData;
-import com.dfsek.terra.api.world.generator.ChunkGenerator;
-import com.dfsek.terra.api.world.generator.GenerationStage;
-import com.dfsek.terra.api.world.generator.Palette;
-import com.dfsek.terra.api.world.generator.Sampler;
-
-
-public class NoiseChunkGenerator3D implements ChunkGenerator {
-    private final ConfigPack configPack;
-    private final TerraPlugin main;
-    private final List<GenerationStage> generationStages = new ArrayList<>();
-    
-    private final BlockState air;
-    
-    public NoiseChunkGenerator3D(ConfigPack c, TerraPlugin main) {
-        this.configPack = c;
-        this.main = main;
-        this.air = main.getWorldHandle().air();
-        c.getStages().forEach(stage -> generationStages.add(stage.newInstance(c)));
-    }
-    
-    @SuppressWarnings("try")
-    static void biomes(@NotNull World world, int chunkX, int chunkZ, @NotNull BiomeGrid biome, TerraPlugin main) {
-        try(ProfileFrame ignore = main.getProfiler().profile("biomes")) {
-            int xOrig = (chunkX << 4);
-            int zOrig = (chunkZ << 4);
-            long seed = world.getSeed();
-            BiomeProvider grid = world.getBiomeProvider();
-            for(int x = 0; x < 4; x++) {
-                for(int z = 0; z < 4; z++) {
-                    int cx = xOrig + (x << 2);
-                    int cz = zOrig + (z << 2);
-                    TerraBiome b = grid.getBiome(cx, cz, seed);
-                    
-                    biome.setBiome(cx, cz, b.getVanillaBiomes().get(b.getGenerator().getBiomeNoise(), cx, 0, cz, world.getSeed()));
-                }
-            }
-        }
-    }
-    
-    @Override
-    @SuppressWarnings("try")
-    public ChunkData generateChunkData(@NotNull World world, Random random, int chunkX, int chunkZ, ChunkData chunk) {
-        try(ProfileFrame ignore = main.getProfiler().profile("chunk_base_3d")) {
-            BiomeProvider grid = world.getBiomeProvider();
-            
-            int xOrig = (chunkX << 4);
-            int zOrig = (chunkZ << 4);
-            
-            Sampler sampler = world.getConfig().getSamplerCache().getChunk(chunkX, chunkZ);
-            
-            long seed = world.getSeed();
-            
-            for(int x = 0; x < 16; x++) {
-                for(int z = 0; z < 16; z++) {
-                    int paletteLevel = 0;
-                    
-                    int cx = xOrig + x;
-                    int cz = zOrig + z;
-                    
-                    TerraBiome biome = grid.getBiome(cx, cz, seed);
-                    
-                    PaletteInfo paletteInfo = biome.getContext().get(PaletteInfo.class);
-                    
-                    if(paletteInfo == null) {
-                        main.logger().info("null palette: " + biome.getID());
-                    }
-                    
-                    GenerationSettings generationSettings = biome.getGenerator();
-                    
-                    int sea = paletteInfo.getSeaLevel();
-                    Palette seaPalette = paletteInfo.getOcean();
-                    
-                    boolean justSet = false;
-                    BlockState data = null;
-                    for(int y = world.getMaxHeight() - 1; y >= world.getMinHeight(); y--) {
-                        if(sampler.sample(x, y, z) > 0) {
-                            justSet = true;
-                            
-                            data = PaletteUtil.getPalette(x, y, z, generationSettings, sampler, paletteInfo).get(paletteLevel, cx, y, cz,
-                                                                                                                 seed);
-                            chunk.setBlock(x, y, z, data);
-                            
-                            paletteLevel++;
-                        } else if(y <= sea) {
-                            chunk.setBlock(x, y, z, seaPalette.get(sea - y, x + xOrig, y, z + zOrig, seed));
-                            
-                            justSet = false;
-                            paletteLevel = 0;
-                        } else {
-                            
-                            justSet = false;
-                            paletteLevel = 0;
-                        }
-                    }
-                }
-            }
-            return chunk;
-        }
-    }
-    
-    @Override
-    public void generateBiomes(@NotNull World world, @NotNull Random random, int chunkX, int chunkZ, @NotNull BiomeGrid biome) {
-        biomes(world, chunkX, chunkZ, biome, main);
-    }
-    
-    @Override
-    public Sampler createSampler(int chunkX, int chunkZ, BiomeProvider provider, World world, int elevationSmooth) {
-        return new Sampler3D(chunkX, chunkZ, provider, world, elevationSmooth);
-    }
-    
-    @Override
-    public ConfigPack getConfigPack() {
-        return configPack;
-    }
-    
-    @Override
-    public TerraPlugin getMain() {
-        return main;
-    }
-    
-    @Override
-    public List<GenerationStage> getGenerationStages() {
-        return generationStages;
-    }
-    
-    @Override
-    public BlockState getBlock(World world, int x, int y, int z) {
-        BiomeProvider provider = world.getBiomeProvider();
-        TerraBiome biome = provider.getBiome(x, z, world.getSeed());
-        Sampler sampler = world.getConfig().getSamplerCache().get(x, z);
-        
-        PaletteInfo paletteInfo = biome.getContext().get(PaletteInfo.class);
-        Palette palette = PaletteUtil.getPalette(x, y, z, biome.getGenerator(), sampler, paletteInfo);
-        int fdX = FastMath.floorMod(x, 16);
-        int fdZ = FastMath.floorMod(z, 16);
-        double noise = sampler.sample(fdX, y, fdZ);
-        if(noise > 0) {
-            int level = 0;
-            for(int yi = world.getMaxHeight() - 1; yi > y; yi--) {
-                if(sampler.sample(fdX, yi, fdZ) > 0) level++;
-                else level = 0;
-            }
-            return palette.get(level, x, y, z, world.getSeed());
-        } else if(y <= paletteInfo.getSeaLevel()) {
-            return paletteInfo.getOcean().get(paletteInfo.getSeaLevel() - y, x, y, z, world.getSeed());
-        } else return air;
-    }
-    
-    private boolean placeStair(BlockState orig, ChunkData chunk, Vector3 block, double thresh, Sampler sampler, BlockState stairNew) {
-        
-        if(sampler.sample(block.getBlockX() - 0.55, block.getY(), block.getZ()) > thresh) {
-            stairNew.set(Properties.DIRECTION, Direction.WEST);
-        } else if(sampler.sample(block.getBlockX(), block.getY(), block.getZ() - 0.55) > thresh) {
-            stairNew.set(Properties.DIRECTION, Direction.NORTH);
-        } else if(sampler.sample(block.getBlockX(), block.getY(), block.getZ() + 0.55) > thresh) {
-            stairNew.set(Properties.DIRECTION, Direction.SOUTH);
-        } else if(sampler.sample(block.getX() + 0.55, block.getY(), block.getZ()) > thresh) {
-            stairNew.set(Properties.DIRECTION, Direction.EAST);
-        } else stairNew = null;
-        if(stairNew != null) {
-            stairNew.setIfPresent(Properties.WATERLOGGED, orig.getBlockType().isWater());
-            chunk.setBlock(block.getBlockX(), block.getBlockY(), block.getBlockZ(), stairNew);
-            return true;
-        }
-        return false;
-    }
-}
--- a/Show More
+++ b/Show More