implement getBaseBiome

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

@@ -7,6 +7,7 @@ import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
 import com.dfsek.terra.api.world.info.WorldProperties;
 
 import java.util.List;
+import java.util.Optional;
 import java.util.Set;
 import java.util.stream.Collectors;
 
@@ -35,6 +36,11 @@ public class BiomeExtrusionProvider implements BiomeProvider {
         return delegated;
     }
     
+    @Override
+    public Optional<Biome> getBaseBiome(int x, int z, long seed) {
+        return delegate.getBaseBiome(x, z, seed);
+    }
+    
     @Override
     public Iterable<Biome> getBiomes() {
         return biomes;

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

@@ -13,6 +13,7 @@ import java.awt.Color;
 import java.awt.image.BufferedImage;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Set;
 
 import com.dfsek.terra.api.world.biome.Biome;
@@ -38,6 +39,10 @@ public class ImageBiomeProvider implements BiomeProvider {
     
     @Override
     public Biome getBiome(int x, int y, int z, long seed) {
+        return getBiome(x, z);
+    }
+    
+    public Biome getBiome(int x, int z) {
         x /= resolution;
         z /= resolution;
         Color color = align.getColor(image, x, z);
@@ -51,6 +56,11 @@ public class ImageBiomeProvider implements BiomeProvider {
                                                       }));
     }
     
+    @Override
+    public Optional<Biome> getBaseBiome(int x, int z, long seed) {
+        return Optional.of(getBiome(x, z));
+    }
+    
     @Override
     public Iterable<Biome> getBiomes() {
         return colorBiomeMap.values();

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

@@ -16,6 +16,7 @@ import net.jafama.FastMath;
 
 import java.util.Comparator;
 import java.util.HashSet;
+import java.util.Optional;
 import java.util.Set;
 import java.util.stream.StreamSupport;
 
@@ -76,18 +77,27 @@ public class BiomePipelineProvider implements BiomeProvider {
     
     @Override
     public Biome getBiome(int x, int y, int z, long seed) {
+        return getBiome(x, z, seed);
+    }
+    
+    public Biome getBiome(int x, 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));
-        
+    
         z = FastMath.floorToInt(FastMath.floorDiv(z, resolution));
-        
+    
         int fdX = FastMath.floorDiv(x, pipeline.getSize());
         int fdZ = FastMath.floorDiv(z, pipeline.getSize());
         return holderCache.get(new SeededVector(fdX, fdZ, seed)).getBiome(x - fdX * pipeline.getSize(),
-                                                                                   z - fdZ * pipeline.getSize()).getBiome();
+                                                                          z - fdZ * pipeline.getSize()).getBiome();
+    }
+    
+    @Override
+    public Optional<Biome> getBaseBiome(int x, int z, long seed) {
+        return Optional.of(getBiome(x, z, seed));
     }
     
     @Override

common/addons/biome-provider-single/src/main/java/com/dfsek/terra/addons/biome/single/SingleBiomeProvider.java

@@ -8,6 +8,7 @@
 package com.dfsek.terra.addons.biome.single;
 
 import java.util.Collections;
+import java.util.Optional;
 
 import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
@@ -25,6 +26,11 @@ public class SingleBiomeProvider implements BiomeProvider {
         return biome;
     }
     
+    @Override
+    public Optional<Biome> getBaseBiome(int x, int z, long seed) {
+        return Optional.of(biome);
+    }
+    
     @Override
     public Iterable<Biome> getBiomes() {
         return Collections.singleton(biome);

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

@@ -9,6 +9,7 @@ import com.dfsek.terra.api.world.info.WorldProperties;
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Optional;
 
 
 /**
@@ -44,6 +45,11 @@ public class CachingBiomeProvider implements BiomeProvider, Handle {
         return biomes[yi];
     }
     
+    @Override
+    public Optional<Biome> getBaseBiome(int x, int z, long seed) {
+        return delegate.getBaseBiome(x, z, seed);
+    }
+    
     @Override
     public Column<Biome> getColumn(int x, int z, WorldProperties properties) {
         return delegate.getColumn(x, z, properties);