Implement Harvest Ritual

Currently only a handler for standard crops (wheat, carrots, etc) is implemented.

src/main/java/WayofTime/bloodmagic/api/BlockStack.java

@@ -9,16 +9,18 @@ import net.minecraft.world.World;
 import net.minecraftforge.fml.common.registry.GameData;
 
 @Getter
-@EqualsAndHashCode
+@EqualsAndHashCode(exclude = { "state" })
 public class BlockStack
 {
     private final Block block;
     private final int meta;
+    private final IBlockState state;
 
     public BlockStack(Block block, int meta)
     {
         this.block = block;
         this.meta = meta;
+        this.state = block.getStateFromMeta(meta);
     }
 
     public BlockStack(Block block)
@@ -35,6 +37,6 @@ public class BlockStack
     @Override
     public String toString()
     {
-        return GameData.getBlockRegistry().getNameForObject(block) + ":" + meta;
+        return GameData.getBlockRegistry().getNameForObject(getBlock()) + ":" + getMeta();
     }
 }

src/main/java/WayofTime/bloodmagic/api/iface/IHarvestHandler.java

@@ -0,0 +1,30 @@
+package WayofTime.bloodmagic.api.iface;
+
+import WayofTime.bloodmagic.api.BlockStack;
+import net.minecraft.util.BlockPos;
+import net.minecraft.world.World;
+
+/**
+ * Used to define a HarvestHandler for the Harvest Ritual.
+ */
+public interface IHarvestHandler
+{
+    /**
+     * Called whenever the Harvest Ritual attempts to harvest a block.
+     * <br>
+     * Use this to break the block, plant a new one, and drop the produced items.
+     * <br>
+     * Make sure to do checks so you are certain the blocks being handled
+     * are the block types you want.
+     *
+     * @param world
+     *          - The world the {@link WayofTime.bloodmagic.api.ritual.IMasterRitualStone} is in.
+     * @param pos
+     *          - The position of the Block being checked
+     * @param blockStack
+     *          - The Block being checked
+     *
+     * @return If the block was successfully harvested.
+     */
+    boolean harvestAndPlant(World world, BlockPos pos, BlockStack blockStack);
+}

src/main/java/WayofTime/bloodmagic/api/registry/HarvestRegistry.java

@@ -0,0 +1,72 @@
+package WayofTime.bloodmagic.api.registry;
+
+import WayofTime.bloodmagic.api.BlockStack;
+import WayofTime.bloodmagic.api.iface.IHarvestHandler;
+import net.minecraft.block.Block;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class HarvestRegistry
+{
+    private static List<IHarvestHandler> handlerList = new ArrayList<IHarvestHandler>();
+    private static Map<Block, Integer> validBlocks = new HashMap<Block, Integer>();
+    private static Map<BlockStack, Integer> amplifierMap = new HashMap<BlockStack, Integer>();
+
+    /**
+     * Registers a handler for the Harvest Ritual to call.
+     *
+     * @param handler
+     *          - The custom handler to register
+     */
+    public static void registerHandler(IHarvestHandler handler)
+    {
+        if (!handlerList.contains(handler))
+            handlerList.add(handler);
+    }
+
+    /**
+     * Registers a standard crop (IE: Wheat, Carrots, Potatoes, Netherwart, etc) for
+     * the {@link WayofTime.bloodmagic.ritual.harvest.HarvestHandlerPlantable} handler
+     * to handle.
+     *
+     * @param crop
+     *          - The crop block to handle.
+     * @param matureMeta
+     *          - The meta value at which the crop is considered mature
+     *          and ready to be harvested.
+     */
+    public static void registerStandardCrop(Block crop, int matureMeta)
+    {
+        if (!validBlocks.containsKey(crop))
+            validBlocks.put(crop, matureMeta);
+    }
+
+    /**
+     * Registers a range amplifier for the Harvest Ritual.
+     *
+     * @param blockStack
+     *          - The block for the amplifier.
+     * @param range
+     *          - The range the amplifier provides.
+     */
+    public static void registerRangeAmplifier(BlockStack blockStack, int range)
+    {
+        if (!amplifierMap.containsKey(blockStack))
+            amplifierMap.put(blockStack, range);
+    }
+
+    public static List<IHarvestHandler> getHandlerList() {
+        return handlerList;
+    }
+
+    public static Map<Block, Integer> getValidBlocks() {
+        return validBlocks;
+    }
+
+    public static Map<BlockStack, Integer> getAmplifierMap() {
+        return amplifierMap;
+    }
+}