How to load external tilesets?

[SolarLune]

Hello! I've started looking around at several TMX file loaders, and I've noticed that a lot of them (this one included) don't load external tilesets that maps / layers use.

Is there a reason for this, or is it just a missing implementation? And how would one do this with go-tmx?

Thanks for any assistance!

[salviati]

@SolarLune Hi! Based on what I see here, this shouldn't be hard to implement. I'd add a new function Map.decodeTilesets() which would check if the Tileset.Source is set and populate the Tileset by reading that file, and call it from Map.Read().

I can take a look if I can find sometime, but feel free to open a PR!

[SolarLune]

Hey! I finally took a crack at this, and I ran into a bit of a roadblock - the Read() function doesn't take a direct path to the TMX file, and any external Tilesets' Source attributes are relative paths. That means there's no path to external .TSX files to load them up.

I could add a DecodeTilesets() function on the Map itself that could be called after map creation by the user with a path to the map's file, but that's a bit awkward. However, that could be called in the function that I just PR'd that loads in the map from a string path after map creation, which isn't too bad, I think.