/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2011      Zynga Inc.

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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****************************************************************************/
#ifndef __CCTILE_MAP_ATLAS__
#define __CCTILE_MAP_ATLAS__


#include "base_nodes/CCAtlasNode.h"

NS_CC_BEGIN

struct sImageTGA;
class Dictionary;

/**
 * @addtogroup tilemap_parallax_nodes
 * @{
 */

/** @brief TileMapAtlas is a subclass of AtlasNode.

It knows how to render a map based of tiles.
The tiles must be in a .PNG format while the map must be a .TGA file.

For more information regarding the format, please see this post:
http://www.cocos2d-iphone.org/archives/27

All features from AtlasNode are valid in TileMapAtlas

IMPORTANT:
This class is deprecated. It is maintained for compatibility reasons only.
You SHOULD not use this class.
Instead, use the newer TMX file format: TMXTiledMap
*/
class CC_DLL TileMapAtlas : public AtlasNode 
{
    /** TileMap info */
    CC_PROPERTY(struct sImageTGA*, _TGAInfo, TGAInfo);
public:
    TileMapAtlas();
    virtual ~TileMapAtlas();
    
    /** creates a TileMap with a tile file (atlas) with a map file and the width and height of each tile in points.
    The tile file will be loaded using the TextureMgr.
    */
    static TileMapAtlas * create(const char *tile, const char *mapFile, int tileWidth, int tileHeight);
   
    /** initializes a TileMap with a tile file (atlas) with a map file and the width and height of each tile in points.
    The file will be loaded using the TextureMgr.
    */
    bool initWithTileFile(const char *tile, const char *mapFile, int tileWidth, int tileHeight);
    /** returns a tile from position x,y.
    For the moment only channel R is used
    */
    Color3B tileAt(const Point& position);
    /** sets a tile at position x,y.
    For the moment only channel R is used
    */
    void setTile(const Color3B& tile, const Point& position);
    /** dealloc the map from memory */
    void releaseMap();
private:
    void loadTGAfile(const char *file);
    void calculateItemsToRender();
    void updateAtlasValueAt(const Point& pos, const Color3B& value, unsigned int index);
    void updateAtlasValues();

protected:
    //! x,y to atlas dictionary
    Dictionary* _posToAtlasIndex;
    //! numbers of tiles to render
    int _itemsToRender;
};

// end of tilemap_parallax_nodes group
/// @}

NS_CC_END

#endif //__CCTILE_MAP_ATLAS__