Add PixMap struct #74
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PixMap is a generic data structure for manipulating any kind of pixel data - screen, sprite-sheet etc. PixMap uses a single byte (8 bits) for storing single color/pixel. This means that max 256 colors can be used. PixMap can also be used for maps which not necessary contain pixel colors, such as world map (as long as only 256 different tiles are used). This commit replaces pi.Screen and pi.SpriteSheet with pi.PixMap. PixMap provides also new methods: * Copy - copy PixMap fragment to another PixMap at specific location * Merge - customizable variant of Copy. User can provide his own merge function which will be used instead of directly copying pixels. * Foreach - run code line by line on selected PixMap fragment * Pointer - low-level method for high-performance processing
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PixMap is a generic data structure for manipulating any kind of pixel data - screen, sprite-sheet etc.
PixMap uses a single byte (8 bits) for storing single color/pixel. This means that max 256 colors can be used.
PixMap can also be used for maps which not necessary contain pixel colors, such as world map (as long as only 256 different tiles are used).
This commit replaces pi.Screen and pi.SpriteSheet with pi.PixMap.
PixMap provides also new methods: