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/* $Id$ */

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/** @file spriteloader.hpp Base for loading sprites. */

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#ifndef SPRITELOADER_HPP

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#define SPRITELOADER_HPP

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class SpriteLoader {

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public:

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	struct CommonPixel {

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		uint8 r;  ///< Red-channel

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		uint8 g;  ///< Green-channel

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		uint8 b;  ///< Blue-channel

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		uint8 a;  ///< Alpha-channel

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		uint8 m;  ///< Remap-channel

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	};

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	struct Sprite {

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		uint16 height;                   ///< Height of the sprite

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		uint16 width;                    ///< Width of the sprite

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		int16 x_offs;                    ///< The x-offset of where the sprite will be drawn

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		int16 y_offs;                    ///< The y-offset of where the sprite will be drawn

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		SpriteLoader::CommonPixel *data; ///< The sprite itself

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	};

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	/**

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	 * Load a sprite from the disk and return a sprite struct which is the same for all loaders.

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	 */

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	virtual bool LoadSprite(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_pos) = 0;

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	virtual ~SpriteLoader() { }

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};

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#endif /* SPRITELOADER_HPP */