implement BiomePipeline

common/src/main/java/com/dfsek/terra/biome/BiomeCache.java

@@ -0,0 +1,25 @@
+package com.dfsek.terra.biome;
+
+import com.dfsek.terra.api.math.vector.Vector2;
+import com.dfsek.terra.biome.pipeline.BiomeHolder;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import org.jetbrains.annotations.NotNull;
+
+public class BiomeCache {
+    LoadingCache<Vector2, BiomeHolder> cache;
+
+    public BiomeCache() {
+        cache = CacheBuilder.newBuilder()
+                .maximumSize(1024)
+                .build(
+                        new CacheLoader<Vector2, BiomeHolder>() {
+                            @Override
+                            public BiomeHolder load(@NotNull Vector2 key) throws Exception {
+                                return null;
+                            }
+                        }
+                );
+    }
+}

common/src/main/java/com/dfsek/terra/biome/pipeline/BiomePipeline.java

@@ -0,0 +1,54 @@
+package com.dfsek.terra.biome.pipeline;
+
+import com.dfsek.terra.api.math.vector.Vector2;
+import com.dfsek.terra.api.util.GlueList;
+import com.dfsek.terra.biome.pipeline.source.BiomeSource;
+import com.dfsek.terra.biome.pipeline.stages.Stage;
+
+import java.util.List;
+
+public class BiomePipeline {
+    private final BiomeSource source;
+    private final List<Stage> stages;
+    private final int size;
+    private final int init;
+
+    private BiomePipeline(BiomeSource source, List<Stage> stages, int size, int init) {
+        this.source = source;
+        this.stages = stages;
+        this.size = size;
+        this.init = init;
+    }
+
+    public BiomeHolder getBiomes(int x, int z) {
+        BiomeHolder holder = new TerraBiomeHolder(25, new Vector2(x * (init - 1), z * (init - 1)));
+        holder.fill(source);
+        for(Stage stage : stages) holder = stage.apply(holder);
+        return holder;
+    }
+
+    public int getSize() {
+        return size;
+    }
+
+    public static final class BiomePipelineBuilder {
+        private final int init;
+        List<Stage> stages = new GlueList<>();
+        private int expand;
+
+        public BiomePipelineBuilder(int init) {
+            this.init = init;
+            expand = init;
+        }
+
+        public BiomePipeline build(BiomeSource source) {
+            return new BiomePipeline(source, stages, expand, init);
+        }
+
+        public BiomePipelineBuilder addStage(Stage stage) {
+            stages.add(stage);
+            if(stage.isExpansion()) expand = expand * 2 - 1;
+            return this;
+        }
+    }
+}

common/src/main/java/com/dfsek/terra/biome/pipeline/Position.java

@@ -1,33 +0,0 @@
-package com.dfsek.terra.biome.pipeline;
-
-import com.dfsek.terra.api.math.vector.Vector2;
-
-public class Position {
-    private final int x;
-    private final int y;
-
-    public Position(int x, int y) {
-        this.x = x;
-        this.y = y;
-    }
-
-    public int getX() {
-        return x;
-    }
-
-    public int getY() {
-        return y;
-    }
-
-    public Vector2 getAsVector() {
-        return new Vector2(x, y);
-    }
-
-    public Position newFromAdd(Position other) {
-        return new Position(x + other.getX(), y + other.getY());
-    }
-
-    public Position newMultiply(int m) {
-        return new Position(x * m, y * m);
-    }
-}

common/src/main/java/com/dfsek/terra/biome/pipeline/stages/ExpanderStage.java

@@ -0,0 +1,22 @@
+package com.dfsek.terra.biome.pipeline.stages;
+
+import com.dfsek.terra.biome.pipeline.BiomeHolder;
+import com.dfsek.terra.biome.pipeline.expand.BiomeExpander;
+
+public class ExpanderStage implements Stage {
+    private final BiomeExpander expander;
+
+    public ExpanderStage(BiomeExpander expander) {
+        this.expander = expander;
+    }
+
+    @Override
+    public boolean isExpansion() {
+        return true;
+    }
+
+    @Override
+    public BiomeHolder apply(BiomeHolder in) {
+        return in.expand(expander);
+    }
+}

common/src/main/java/com/dfsek/terra/biome/pipeline/stages/MutatorStage.java

@@ -0,0 +1,23 @@
+package com.dfsek.terra.biome.pipeline.stages;
+
+import com.dfsek.terra.biome.pipeline.BiomeHolder;
+import com.dfsek.terra.biome.pipeline.mutator.BiomeMutator;
+
+public class MutatorStage implements Stage {
+    private final BiomeMutator mutator;
+
+    public MutatorStage(BiomeMutator mutator) {
+        this.mutator = mutator;
+    }
+
+    @Override
+    public boolean isExpansion() {
+        return false;
+    }
+
+    @Override
+    public BiomeHolder apply(BiomeHolder in) {
+        in.mutate(mutator);
+        return in;
+    }
+}

common/src/main/java/com/dfsek/terra/biome/pipeline/stages/Stage.java

@@ -0,0 +1,9 @@
+package com.dfsek.terra.biome.pipeline.stages;
+
+import com.dfsek.terra.biome.pipeline.BiomeHolder;
+
+public interface Stage {
+    boolean isExpansion();
+
+    BiomeHolder apply(BiomeHolder in);
+}