optimize biome pipeline cache for 3 dimensions

common/api/src/main/java/com/dfsek/terra/api/util/Column.java

@@ -17,6 +17,9 @@ public interface Column<T> {
     
     int getMaxY();
     
+    int getX();
+    int getZ();
+    
     T get(int y);
     
     default void forEach(Consumer<T> consumer) {

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

@@ -32,6 +32,16 @@ class BiomeColumn implements Column<Biome> {
         return max;
     }
     
+    @Override
+    public int getX() {
+        return x;
+    }
+    
+    @Override
+    public int getZ() {
+        return z;
+    }
+    
     @Override
     public Biome get(int y) {
         return biomeProvider.getBiome(x, y, z, seed);

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

@@ -21,7 +21,6 @@ public class CachingBiomeProvider implements BiomeProvider, Handle {
     private final int minY;
     private final int maxY;
     private final Map<Long, Biome[]> cache = new HashMap<>();
-    private final Map<Long, Column<Biome>> columns = new HashMap<>();
     
     protected CachingBiomeProvider(BiomeProvider delegate, int minY, int maxY) {
         this.delegate = delegate;
@@ -47,7 +46,7 @@ public class CachingBiomeProvider implements BiomeProvider, Handle {
     
     @Override
     public Column<Biome> getColumn(int x, int z, WorldProperties properties) {
-        return columns.computeIfAbsent(MathUtil.squash(x, z), k -> BiomeProvider.super.getColumn(x, z, properties));
+        return delegate.getColumn(x, z, properties);
     }
     
     @Override

common/api/src/test/java/util/ColumnTest.java

@@ -87,7 +87,17 @@ public class ColumnTest {
         public int getMaxY() {
             return max;
         }
-        
+    
+        @Override
+        public int getX() {
+            return 0;
+        }
+    
+        @Override
+        public int getZ() {
+            return 0;
+        }
+    
         @Override
         public T get(int y) {
             return p.apply(y);