1 files changed, 90 insertions, 0 deletions
diff --git a/source/blocks/BlockHandler.h b/source/blocks/BlockHandler.h
new file mode 100644
index 000000000..859870c4a
--- /dev/null
+++ b/source/blocks/BlockHandler.h
@@ -0,0 +1,90 @@
+#pragma once
+#include "../Defines.h"
+
+class cWorld;
+class cPlayer;
+
+
+
+class cBlockHandler
+{
+public:
+	cBlockHandler(BLOCKTYPE a_BlockID);
+
+	// Called when the block gets ticked either by a random tick or by a queued tick
+	virtual void OnUpdate(cWorld *a_World, int a_X, int a_Y, int a_Z);
+
+	// Will be called by cBlockHandler::PlaceBlock after the player has placed a new block
+	virtual void OnPlacedByPlayer(cWorld *a_World, cPlayer * a_Player, int a_X, int a_Y, int a_Z, int a_Dir);
+	// Will be called before the player has destroyed a block
+	virtual void OnDestroyedByPlayer(cWorld *a_World, cPlayer * a_Player, int a_X, int a_Y, int a_Z);
+	// Will be called when a new block was placed. Will be called before OnPlacedByPlayer
+	virtual void OnPlaced(cWorld *a_World, int a_X, int a_Y, int a_Z, int a_Dir);
+	// Will be called before a block gets destroyed / replaced with air
+	virtual void OnDestroyed(cWorld *a_World, int a_X, int a_Y, int a_Z);
+	// Will be called when a direct neighbor of this block has been changed (The position is the own position, not the neighbor position)
+	virtual void OnNeighborChanged(cWorld *a_World, int a_X, int a_Y, int a_Z);
+	// Notifies all neighbors of the give block about a change
+	static void NeighborChanged(cWorld *a_World, int a_X, int a_Y, int a_Z);
+	// Will be called while the player diggs the block.
+	virtual void OnDigging(cWorld *a_World, cPlayer *a_Player, int a_X, int a_Y, int a_Z);
+	// Will be called if the user right clicks the block and the block is useable
+	virtual void OnUse(cWorld *a_World, cPlayer *a_Player, int a_X, int a_Y, int a_Z);
+	// This function handles the real block placement for the give block by a player and also calls the OnPlacedByPlayer function
+	virtual void PlaceBlock(cWorld *a_World, cPlayer *a_Player, NIBBLETYPE a_BlockMeta, int a_X, int a_Y, int a_Z, char a_Dir);
+
+	// Indicates how much items are dropped DEFAULT: 1
+	virtual char GetDropCount();
+	// Indicates the id dropped by this block DEFAULT: BlockID
+	virtual int GetDropID();
+	// Indicates the Drop Meta data based on the block meta DEFAULT: BlockMeta
+	virtual NIBBLETYPE GetDropMeta(NIBBLETYPE a_BlockMeta);
+	// This function handles the dropping of a block based on the Drop id, drop count and drop meta. This will not destroy the block
+	virtual void DropBlock(cWorld *a_World, int a_X, int a_Y, int a_Z);
+	/// Returns step sound name of block
+	virtual AString GetStepSound();
+	
+	// Indicates whether this block needs random ticks DEFAULT: False
+	virtual bool NeedsRandomTicks();
+	
+	/// Checks if the block can stay at the specified coords in the world
+	virtual bool CanBeAt(cWorld *a_World, int a_BlockX, int a_BlockY, int a_BlockZ);
+	
+	/// Checks if the block can be placed at this point. Default: CanBeAt(...) NOTE: This call doesn't actually place the block
+	virtual bool CanBePlacedAt(cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Dir);
+	
+	/// Called when the player tries to place a block on top of this block (Only if he aims directly on this block); return false to disallow
+	virtual bool AllowBlockOnTop(void);
+	
+	/// Called to check whether this block supports a rclk action. If it returns true, OnUse() is called
+	virtual bool IsUseable(void);
+	
+	// Indicates whether the client will click through this block. For example digging a fire will hit the block below the fire so fire is clicked through
+	virtual bool IsClickedThrough(void);
+	
+	// Checks if the player can build "inside" this block. For example blocks placed "on" snow will be placed at the same position. So: Snow ignores Build collision
+	virtual bool IgnoreBuildCollision(void);
+	
+	/// Indicates this block can be placed on the side of other blocks. Default: true
+	virtual bool CanBePlacedOnSide();
+	
+	/// Does this block drop if it gets destroyed by an unsuitable situation? Default: true
+	virtual bool DropOnUnsuitable();
+	
+
+	// Static function to get the blockhandler for an specific block id
+	static cBlockHandler * GetBlockHandler(BLOCKTYPE a_BlockID);
+
+	// Deletes all initialised block handlers
+	static void Deinit();
+	
+protected:
+	BLOCKTYPE m_BlockID;
+	// Creates a new blockhandler for the given block id. For internal use only, use GetBlockHandler instead.
+	static cBlockHandler *CreateBlockHandler(BLOCKTYPE a_BlockID);
+	static cBlockHandler *m_BlockHandler[256];
+	static bool m_HandlerInitialized;	//used to detect if the blockhandlers are initialized
+};
+
+// Shortcut to get the blockhandler for a specific block
+inline cBlockHandler *BlockHandler(BLOCKTYPE a_BlockID) { return cBlockHandler::GetBlockHandler(a_BlockID); }
+\ No newline at end of file