[Feature] Infinite maps

[k80w]

go-tiled currently has no functionality to load infinite maps and will panic when this is attempted:

panic: illegal base64 data at input byte 0

[lafriks]

Can you provide small sample tmx file for that?

[k80w]

Can you provide small sample tmx file for that?

Here's a TMX

[MetalBlueberry]

I've taken a look at this issue and looks like the problem is that Tiled uses a different format for infinite maps.

  <data encoding="csv">
   <chunk x="0" y="0" width="16" height="16">
...
   </chunk>
   <chunk x="16" y="0" width="16" height="16">
...
   </chunk>
   <chunk x="32" y="0" width="16" height="16">
..
   </chunk>

We can "easily" parse all the chunks and load everything into layer.Tiles but I'm worried about really big maps. I think there should be a way to get data as chunks.

My initial proposal after 10 minutes of thinking is to add a new type "Chunk" that will store a slice with the tiles of that chunk pointing to the layer.Tiles slice. This way we keep compatibility for simple maps and allow a controlled way of parsing huge maps.