37 lines
995 B
C
Executable file
37 lines
995 B
C
Executable file
/*** T I L E S ***/
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void tile_init();
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void loadTiles(unsigned int tilesOffset, unsigned int *memTiles);
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void loadMap(unsigned char *map, unsigned int w, unsigned int h);
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void drawSprite(unsigned int *sprite, int x, int y);
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void scroll(int newX, int newY);
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void drawScreen();
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#define PAGE_TILES_W 21
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#define PAGE_TILES_H 14
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#define PAGE_TILES_COUNT (PAGE_TILES_H * PAGE_TILES_W)
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#define PAGE_STRIDE (PAGE_TILES_W << 1)
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#define NUM_BUFFERS 32
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#define BUF_WSTRIDE 16
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#define BUF_WSIZE (BUF_WSTRIDE * 4)
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typedef struct {
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unsigned int w;
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unsigned int h;
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int scrollX;
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int scrollY;
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unsigned int pageOffset[2];
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unsigned char dirty[2][PAGE_TILES_COUNT];
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unsigned int tilesOffset;
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unsigned int *memTiles;
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unsigned char *map;
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unsigned int buffer[NUM_BUFFERS][BUF_WSIZE];
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unsigned int bufferOffset[NUM_BUFFERS];
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unsigned char currentPage;
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unsigned char nextBuffer;
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unsigned char firstBuffer;
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} TiledScreen_t;
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extern TiledScreen_t screen; |