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I've noticed that under certain circumstances gaps show up when rendering the map tiles. This is typically visible as a 1px gap between tiles (floor isometric tiles and wall rle tiles). It seems this is some sort of issue with opengl that's usually fixed by adding some kind of texture border. This is a pretty difficult problem due to the nature of how the files are stored/loaded -- and I'm not even sure if adding this could fix the issue.
On mobile I was noticing the behavior much worse with the isometric floor appearing with gaps in the tiles. This was resolved by stretching the textures by 1px which caused another issue referenced by #55 (comment).
In the meantime, I've noticed that the issue doesn't really seem to appear noticeably with an even resolution (I was debug rendering at
I'll look into a better solution when I begin implementing lighting, as increasing the size of the texture for the tile could cause issues with that system.