API stuff

src/main/java/com/dfsek/terra/api/bukkit/BukkitBiomeGrid.java

@@ -0,0 +1,39 @@
+package com.dfsek.terra.api.bukkit;
+
+import com.dfsek.terra.api.generic.world.BiomeGrid;
+import org.bukkit.block.Biome;
+import org.bukkit.generator.ChunkGenerator;
+import org.jetbrains.annotations.NotNull;
+
+public class BukkitBiomeGrid implements BiomeGrid {
+    private final ChunkGenerator.BiomeGrid delegate;
+
+    public BukkitBiomeGrid(ChunkGenerator.BiomeGrid biomeGrid) {
+        this.delegate = biomeGrid;
+    }
+
+    @Override
+    public ChunkGenerator.BiomeGrid getHandle() {
+        return delegate;
+    }
+
+    @Override
+    public @NotNull Biome getBiome(int x, int z) {
+        return delegate.getBiome(x, z);
+    }
+
+    @Override
+    public @NotNull Biome getBiome(int x, int y, int z) {
+        return delegate.getBiome(x, y, z);
+    }
+
+    @Override
+    public void setBiome(int x, int z, @NotNull Biome bio) {
+        delegate.setBiome(x, z, bio);
+    }
+
+    @Override
+    public void setBiome(int x, int y, int z, @NotNull Biome bio) {
+        delegate.setBiome(x, y, z, bio);
+    }
+}

src/main/java/com/dfsek/terra/api/bukkit/BukkitBlockData.java

@@ -0,0 +1,17 @@
+package com.dfsek.terra.api.bukkit;
+
+import com.dfsek.terra.api.generic.BlockData;
+
+public class BukkitBlockData implements BlockData {
+    private final org.bukkit.block.data.BlockData delegate;
+
+    public BukkitBlockData(org.bukkit.block.data.BlockData delegate) {
+        this.delegate = delegate;
+    }
+
+
+    @Override
+    public org.bukkit.block.data.BlockData getHandle() {
+        return delegate;
+    }
+}

src/main/java/com/dfsek/terra/api/bukkit/BukkitWorld.java

@@ -13,4 +13,9 @@ public class BukkitWorld implements World {
     public long getSeed() {
         return delegate.getSeed();
     }
+
+    @Override
+    public org.bukkit.World getHandle() {
+        return delegate;
+    }
 }

src/main/java/com/dfsek/terra/api/bukkit/generator/BukkitChunkGenerator.java

@@ -0,0 +1,60 @@
+package com.dfsek.terra.api.bukkit.generator;
+
+import com.dfsek.terra.api.bukkit.BukkitBiomeGrid;
+import com.dfsek.terra.api.bukkit.BukkitBlockData;
+import com.dfsek.terra.api.bukkit.BukkitWorld;
+import com.dfsek.terra.api.generic.BlockData;
+import com.dfsek.terra.api.generic.generator.BlockPopulator;
+import org.bukkit.World;
+import org.bukkit.generator.ChunkGenerator;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+import java.util.Random;
+
+public abstract class BukkitChunkGenerator extends ChunkGenerator implements com.dfsek.terra.api.generic.generator.ChunkGenerator {
+
+
+    @Override
+    public ChunkGenerator.@NotNull ChunkData generateChunkData(@NotNull World world, @NotNull Random random, int x, int z, @NotNull BiomeGrid biome) {
+        BukkitChunkData data = new BukkitChunkData(createChunkData(((BukkitWorld) world).getHandle()));
+        generateChunkData(new BukkitWorld(world), random, x, z, new BukkitBiomeGrid(biome), data);
+        return data.getHandle();
+    }
+
+    @Override
+    public List<BlockPopulator> getDefaultPopulators(com.dfsek.terra.api.generic.world.World world) {
+        return null;
+    }
+
+    public static class BukkitChunkData implements com.dfsek.terra.api.generic.generator.ChunkGenerator.ChunkData {
+
+        private final ChunkGenerator.ChunkData delegate;
+
+        public BukkitChunkData(ChunkGenerator.ChunkData delegate) {
+            this.delegate = delegate;
+        }
+
+        @Override
+        public ChunkGenerator.ChunkData getHandle() {
+            return delegate;
+        }
+
+        @Override
+        public int getMaxHeight() {
+            return delegate.getMaxHeight();
+        }
+
+
+        @Override
+        public void setBlock(int x, int y, int z, @NotNull BlockData blockData) {
+            delegate.setBlock(x, y, z, ((BukkitBlockData) blockData).getHandle());
+        }
+
+
+        @Override
+        public @NotNull BlockData getBlockData(int x, int y, int z) {
+            return new BukkitBlockData(delegate.getBlockData(x, y, z));
+        }
+    }
+}

src/main/java/com/dfsek/terra/api/generic/BlockData.java

@@ -0,0 +1,5 @@
+package com.dfsek.terra.api.generic;
+
+public interface BlockData {
+    Object getHandle();
+}

src/main/java/com/dfsek/terra/api/generic/generator/BlockPopulator.java

@@ -5,6 +5,6 @@ import com.dfsek.terra.api.generic.world.World;
 
 import java.util.Random;
 
-public abstract class BlockPopulator {
-    public abstract void populate(World world, Random random, Chunk chunk);
+public interface BlockPopulator {
+    void populate(World world, Random random, Chunk chunk);
 }

src/main/java/com/dfsek/terra/api/generic/generator/ChunkGenerator.java

@@ -1,27 +1,64 @@
 package com.dfsek.terra.api.generic.generator;
 
-import java.util.Collections;
+import com.dfsek.terra.api.generic.BlockData;
+import com.dfsek.terra.api.generic.world.BiomeGrid;
+import com.dfsek.terra.api.generic.world.World;
+import org.jetbrains.annotations.NotNull;
+
 import java.util.List;
+import java.util.Random;
 
-public abstract class ChunkGenerator {
-    public boolean isParallelCapable() {
-        return false;
-    }
-    public boolean shouldGenerateCaves() {
-        return false;
-    }
-    public boolean shouldGenerateDecorations() {
-        return false;
-    }
-    public boolean shouldGenerateMobs() {
-        return false;
-    }
+public interface ChunkGenerator {
+    boolean isParallelCapable();
 
-    public boolean shouldGenerateStructures() {
-        return false;
-    }
+    boolean shouldGenerateCaves();
 
-    public List<BlockPopulator> getDefaultPopulators() {
-        return Collections.emptyList();
+    boolean shouldGenerateDecorations();
+
+    boolean shouldGenerateMobs();
+
+    boolean shouldGenerateStructures();
+
+    void generateChunkData(@NotNull World world, @NotNull Random random, int x, int z, @NotNull BiomeGrid biome, ChunkData data);
+
+    List<BlockPopulator> getDefaultPopulators(World world);
+
+    interface ChunkData {
+        Object getHandle();
+
+        /**
+         * Get the maximum height for the chunk.
+         * <p>
+         * Setting blocks at or above this height will do nothing.
+         *
+         * @return the maximum height
+         */
+        int getMaxHeight();
+
+
+        /**
+         * Set the block at x,y,z in the chunk data to material.
+         * <p>
+         * Setting blocks outside the chunk's bounds does nothing.
+         *
+         * @param x         the x location in the chunk from 0-15 inclusive
+         * @param y         the y location in the chunk from 0 (inclusive) - maxHeight (exclusive)
+         * @param z         the z location in the chunk from 0-15 inclusive
+         * @param blockData the type to set the block to
+         */
+        void setBlock(int x, int y, int z, @NotNull BlockData blockData);
+
+
+        /**
+         * Get the type and data of the block at x, y, z.
+         * <p>
+         * Getting blocks outside the chunk's bounds returns air.
+         *
+         * @param x the x location in the chunk from 0-15 inclusive
+         * @param y the y location in the chunk from 0 (inclusive) - maxHeight (exclusive)
+         * @param z the z location in the chunk from 0-15 inclusive
+         * @return the data of the block or the BlockData for air if x, y or z are outside the chunk's bounds
+         */
+        @NotNull BlockData getBlockData(int x, int y, int z);
     }
 }

src/main/java/com/dfsek/terra/api/generic/world/BiomeGrid.java

@@ -0,0 +1,50 @@
+package com.dfsek.terra.api.generic.world;
+
+import org.bukkit.block.Biome;
+import org.jetbrains.annotations.NotNull;
+
+public interface BiomeGrid {
+    Object getHandle();
+
+    /**
+     * Get biome at x, z within chunk being generated
+     *
+     * @param x - 0-15
+     * @param z - 0-15
+     * @return Biome value
+     * @deprecated biomes are now 3-dimensional
+     */
+    @NotNull
+    Biome getBiome(int x, int z);
+
+    /**
+     * Get biome at x, z within chunk being generated
+     *
+     * @param x - 0-15
+     * @param y - 0-255
+     * @param z - 0-15
+     * @return Biome value
+     */
+    @NotNull
+    Biome getBiome(int x, int y, int z);
+
+    /**
+     * Set biome at x, z within chunk being generated
+     *
+     * @param x   - 0-15
+     * @param z   - 0-15
+     * @param bio - Biome value
+     * @deprecated biomes are now 3-dimensional
+     */
+    void setBiome(int x, int z, @NotNull Biome bio);
+
+    /**
+     * Set biome at x, z within chunk being generated
+     *
+     * @param x   - 0-15
+     * @param y   - 0-255
+     * @param z   - 0-15
+     * @param bio - Biome value
+     */
+    void setBiome(int x, int y, int z, @NotNull Biome bio);
+}

src/main/java/com/dfsek/terra/api/generic/world/World.java

@@ -2,4 +2,6 @@ package com.dfsek.terra.api.generic.world;
 
 public interface World {
     long getSeed();
+
+    Object getHandle();
 }