1 files changed, 99 insertions, 0 deletions

diff --git a/src/Items/ItemHandler.h b/src/Items/ItemHandler.h
new file mode 100644
index 000000000..e39bb054b
--- /dev/null
+++ b/src/Items/ItemHandler.h
@@ -0,0 +1,99 @@
+
+#pragma once
+
+#include "../Defines.h"
+#include "../Item.h"
+
+
+
+
+
+// fwd:
+class cWorld;
+class cPlayer;
+
+
+
+
+
+class cItemHandler
+{
+public:
+	cItemHandler(int a_ItemType);
+	
+	/// Called when the player tries to use the item (right mouse button). Return false to make the item unusable. DEFAULT: False
+	virtual bool OnItemUse(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Dir);
+	
+	/// Called when the client sends the SHOOT status in the lclk packet
+	virtual void OnItemShoot(cPlayer * a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace) {}
+	
+	/// Called while the player diggs a block using this item
+	virtual bool OnDiggingBlock(cWorld * a_World, cPlayer * a_Player, const cItem & a_HeldItem, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace);
+	
+	/// Called when the player destroys a block using this item. This also calls the drop function for the destroyed block
+	virtual void OnBlockDestroyed(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_X, int a_Y, int a_Z);
+	
+	/// Called after the player has eaten this item.
+	virtual void OnFoodEaten(cWorld *a_World, cPlayer *a_Player, cItem *a_Item);
+	
+	/// Returns the maximum stack size for a given item
+	virtual char GetMaxStackSize(void);
+
+	struct FoodInfo
+	{
+		int    FoodLevel;
+		double Saturation;
+		int    PoisonChance;	 // 0 - 100, in percent. 0 = no chance of poisoning, 100 = sure poisoning
+
+		FoodInfo(int a_FoodLevel, double a_Saturation, int a_PoisonChance = 0) :
+			FoodLevel(a_FoodLevel),
+			Saturation(a_Saturation),
+			PoisonChance(a_PoisonChance)
+		{
+		}
+	} ;
+
+	/// Returns the FoodInfo for this item. (FoodRecovery, Saturation and PoisionChance)
+	virtual FoodInfo GetFoodInfo();
+	
+	/// Lets the player eat a selected item. Returns true if the player ate the item
+	virtual bool EatItem(cPlayer *a_Player, cItem *a_Item);
+
+	/// Indicates if this item is a tool
+	virtual bool IsTool(void);
+	
+	/// Indicates if this item is food
+	virtual bool IsFood(void);
+	
+	/// Blocks simply get placed
+	virtual bool IsPlaceable(void);
+
+	/** Called before a block is placed	into a world. 
+	The handler should return true to allow placement, false to refuse.
+	Also, the handler should set a_BlockType and a_BlockMeta to correct values for the newly placed block.
+	*/
+	virtual bool GetPlacementBlockTypeMeta(
+		cWorld * a_World, cPlayer * a_Player,
+		int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, 
+		int a_CursorX, int a_CursorY, int a_CursorZ,
+		BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta
+	);
+	
+	/// Returns whether this tool/item can harvest a specific block (e.g. wooden pickaxe can harvest stone, but wood canīt) DEFAULT: False
+	virtual bool CanHarvestBlock(BLOCKTYPE a_BlockType);
+
+	static cItemHandler * GetItemHandler(int a_ItemType);
+	static cItemHandler * GetItemHandler(const cItem & a_Item) { return GetItemHandler(a_Item.m_ItemType); }
+
+	static void Deinit();
+	
+protected:
+	int m_ItemType;
+	static cItemHandler *CreateItemHandler(int m_ItemType);
+
+	static cItemHandler * m_ItemHandler[E_ITEM_LAST + 1];
+	static bool m_HandlerInitialized;	//used to detect if the itemhandlers are initialized
+};
+
+//Short function
+inline cItemHandler *ItemHandler(int a_ItemType) { return cItemHandler::GetItemHandler(a_ItemType); }