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- `dir` is 1 for down, 2 for left, 4 for right, 8 for up. To shift up+left,
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- `dir` is 1 for down, 2 for left, 4 for right, 8 for up. To shift up+left,
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You can read a tile number based on its map coordinates, or set a tile based on
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You can read a tile number based on its map coordinates, or set a tile based on
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