inkBot
Make your words as mine too.
Sme other concerns here:
Plus, while using the Tiled editor to generate TMX, always keep your tileset image in a common place, like the same folder of your TMX, otherwise, when backuping it, you'll lose your tileset image.
Also, work with power of 2. Common usages are 8x8, 16x16, 32x32, 64x64, 128x128, 256x256, 512x512 and 1024x1024.
If you want make mobile games, stick with smaller sizes and vary your tilesets, or you'll full the mobile memory asap.
I do use invisible squared collision boxes to make my delimitations, stretching and resizing it as necessary.
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Ashley, I didn't tested it already to say enough, but we will have the ability to use animated tiles, even if importing it from Tiled?