Detect texture size from assets about bevy_ecs_tilemap HOT 2 CLOSED

Trying my hand at this, this is surprisingly involved / frustrating. The core issue is that we're working with Handle<ColorMaterial>> in most places, and the size is stored on the Texture currently.

This means that we're forced to use several layers of indirection, piping everything through the entire logic stack and further bloating things like MapQuery to store more Assets resources which we use to look up the information we need.

In the new renderer, this information will be stored on a new Image type: see bevyengine/bevy#2632.

My initial work can be found at https://github.com/alice-i-cecile/bevy_ecs_tilemap/tree/detect-size; anyone who's interested can pick this up / poke around and work off my branch freely, but I'm going to put this down for now and try to clean up the architecture a bit / wait for the rendering rework to drop.

from bevy_ecs_tilemap.

This is now reality! 👍

from bevy_ecs_tilemap.