SpriteSheet does not scale Texture coords correctly for non-multiples-of-2

[sorlok]

Given the following metadata in spritesheet/something.json:

"meta": {
"image": "something.png",
"format": "RGBA8888",
"size": {"w":192,"h":192},
"scale": "1"
}

...the Texture coords for each frame are generated incorrectly as "width/size.w", "height/size.h".

This is because, somewhere in the conversion process, "something.png" is re-generated (into assets_unpacked) as a 256x256 texture file. This causes the Texture coords to be incorrect. They should be calculated as "width/256", "height/256".

Changing the meta to lie about the size of the input image fixes this:
"size": {"w":256,"h":256},

...however, it should be possible to take the expanded size into account when converting the SpriteSheet (i.e., round up to a multiple of 2). If I can figure out where this is done in the code I'll file a pull request.

(Note: I'm aware that I should be generating power-of-2 size images in the first place, but I still think the tool should do the right thing with images it's changing the size of.)

[sorlok]

Hmm... it looks like what's happening here is more complicated: the spritesheet I'm using defaults to "trim: true", so empty space on the left is removed. This creates a situation where scaling to 256 "seems" to fix things. I'm closing this issue until I can track this down better.