implement BaseBiomeColumn

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

@@ -0,0 +1,51 @@
+package com.dfsek.terra.addons.biome.extrusion;
+
+import com.dfsek.terra.api.util.Column;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+class BaseBiomeColumn implements Column<Biome> {
+    private final BiomeExtrusionProvider biomeProvider;
+    private final Biome base;
+    private final int min;
+    private final int max;
+    
+    private final int x;
+    private final int z;
+    private final long seed;
+    
+    protected BaseBiomeColumn(BiomeExtrusionProvider biomeProvider, Biome base, int min, int max, int x, int z, long seed) {
+        this.biomeProvider = biomeProvider;
+        this.base = base;
+        this.min = min;
+        this.max = max;
+        this.x = x;
+        this.z = z;
+        this.seed = seed;
+    }
+    
+    @Override
+    public int getMinY() {
+        return min;
+    }
+    
+    @Override
+    public int getMaxY() {
+        return max;
+    }
+    
+    @Override
+    public int getX() {
+        return x;
+    }
+    
+    @Override
+    public int getZ() {
+        return z;
+    }
+    
+    @Override
+    public Biome get(int y) {
+        return biomeProvider.extrude(base, x, y, z, seed);
+    }
+}

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

@@ -6,9 +6,12 @@ import java.util.Set;
 import java.util.stream.Collectors;
 
 import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.api.util.Column;
 import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
 
+import com.github.benmanes.caffeine.cache.LoadingCache;
+
 
 public class BiomeExtrusionProvider implements BiomeProvider {
     private final BiomeProvider delegate;
@@ -27,12 +30,22 @@ public class BiomeExtrusionProvider implements BiomeProvider {
     @Override
     public Biome getBiome(int x, int y, int z, long seed) {
         Biome delegated = delegate.getBiome(x, y, z, seed);
+
+        return extrude(delegated, x, y, z, seed);
+    }
     
+    public Biome extrude(Biome original, int x, int y, int z, long seed) {
         for(Extrusion extrusion : extrusions) {
-            delegated = extrusion.extrude(delegated, x, y, z, seed);
+            original = extrusion.extrude(original, x, y, z, seed);
         }
-        
+        return original;
-        return delegated;
+    }
+    
+    @Override
+    public Column<Biome> getColumn(int x, int z, long seed, int min, int max) {
+        return delegate.getBaseBiome(x, z, seed)
+                .map(base -> (Column<Biome>) new BaseBiomeColumn(this, base, min, max, x, z, seed))
+                .orElseGet(() -> BiomeProvider.super.getColumn(x, z, seed, min, max));
     }
     
     @Override