Test with stuff + Forestry potential support

BM_src/forestry/api/storage/BackpackEvent.java

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+package forestry.api.storage;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.inventory.IInventory;
+import net.minecraftforge.event.Event;
+
+public abstract class BackpackEvent extends Event {
+
+	public final EntityPlayer player;
+	public final IBackpackDefinition backpackDefinition;
+	public final IInventory backpackInventory;
+
+	public BackpackEvent(EntityPlayer player, IBackpackDefinition backpackDefinition, IInventory backpackInventory) {
+		this.player = player;
+		this.backpackDefinition = backpackDefinition;
+		this.backpackInventory = backpackInventory;
+	}
+}

BM_src/forestry/api/storage/BackpackManager.java

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+package forestry.api.storage;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+import net.minecraft.item.ItemStack;
+
+public class BackpackManager {
+	/**
+	 * 0 - Miner's Backpack 1 - Digger's Backpack 2 - Forester's Backpack 3 - Hunter's Backpack 4 - Adventurer's Backpack
+	 * 
+	 * Use IMC messages to achieve the same effect!
+	 */
+	public static ArrayList<ItemStack>[] backpackItems;
+
+	public static IBackpackInterface backpackInterface;
+
+	/**
+	 * Only use this if you know what you are doing. Prefer backpackInterface.
+	 */
+	public static HashMap<String, IBackpackDefinition> definitions = new HashMap<String, IBackpackDefinition>();
+}

BM_src/forestry/api/storage/BackpackResupplyEvent.java

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+package forestry.api.storage;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.inventory.IInventory;
+import net.minecraftforge.event.Cancelable;
+
+/**
+ * Use @ForgeSubscribe on a method taking this event as an argument. Will fire whenever a backpack tries to resupply to a player inventory. Processing will stop
+ * if the event is canceled.
+ */
+@Cancelable
+public class BackpackResupplyEvent extends BackpackEvent {
+
+	public BackpackResupplyEvent(EntityPlayer player, IBackpackDefinition backpackDefinition, IInventory backpackInventory) {
+		super(player, backpackDefinition, backpackInventory);
+	}
+
+}

BM_src/forestry/api/storage/BackpackStowEvent.java

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+package forestry.api.storage;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.inventory.IInventory;
+import net.minecraft.item.ItemStack;
+import net.minecraftforge.event.Cancelable;
+
+/**
+ * Use @ForgeSubscribe on a method taking this event as an argument. Will fire whenever a backpack tries to store an item. Processing will stop if the stacksize
+ * of stackToStow drops to 0 or less or the event is canceled.
+ */
+@Cancelable
+public class BackpackStowEvent extends BackpackEvent {
+
+	public final ItemStack stackToStow;
+
+	public BackpackStowEvent(EntityPlayer player, IBackpackDefinition backpackDefinition, IInventory backpackInventory, ItemStack stackToStow) {
+		super(player, backpackDefinition, backpackInventory);
+		this.stackToStow = stackToStow;
+	}
+}

BM_src/forestry/api/storage/EnumBackpackType.java

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+package forestry.api.storage;
+
+public enum EnumBackpackType {
+	T1, T2
+}

BM_src/forestry/api/storage/IBackpackDefinition.java

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+package forestry.api.storage;
+
+import java.util.Collection;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemStack;
+
+public interface IBackpackDefinition {
+
+	/**
+	 * @return A unique string identifier
+	 */
+	String getKey();
+
+	/**
+	 * @return Human-readable name of the backpack.
+	 */
+	String getName();
+
+	/**
+	 * @return Primary colour for the backpack icon.
+	 */
+	int getPrimaryColour();
+
+	/**
+	 * @return Secondary colour for backpack icon.
+	 */
+	int getSecondaryColour();
+
+	/**
+	 * Adds an item as valid for this backpack.
+	 * 
+	 * @param validItem
+	 */
+	void addValidItem(ItemStack validItem);
+
+	/**
+	 * Returns an arraylist of all items valid for this backpack type.
+	 * 
+	 * @param player
+	 * @return Collection of itemstack which are valid items for this backpack type. May be empty or null and does not necessarily include all valid items.
+	 */
+	Collection<ItemStack> getValidItems(EntityPlayer player);
+
+	/**
+	 * Returns true if the itemstack is a valid item for this backpack type.
+	 * 
+	 * @param player
+	 * @param itemstack
+	 * @return true if the given itemstack is valid for this backpack, false otherwise.
+	 */
+	boolean isValidItem(EntityPlayer player, ItemStack itemstack);
+
+}

BM_src/forestry/api/storage/IBackpackInterface.java

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+package forestry.api.storage;
+
+import net.minecraft.item.Item;
+
+public interface IBackpackInterface {
+
+	/**
+	 * Adds a backpack with the given id, definition and type, returning the item.
+	 * 
+	 * @param itemID
+	 *            Item id to use.
+	 * @param definition
+	 *            Definition of backpack behaviour.
+	 * @param type
+	 *            Type of backpack. (T1 or T2 (= Woven)
+	 * @return Created backpack item.
+	 */
+	Item addBackpack(int itemID, IBackpackDefinition definition, EnumBackpackType type);
+}

BM_src/forestry/api/storage/package-info.java

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+@API(apiVersion="1.0", owner="ForestryAPI|core", provides="ForestryAPI|storage")
+package forestry.api.storage;
+import cpw.mods.fml.common.API;