I have been using categories for telling my colliders which sprites to collide with but think its a little confusing to just use names like Circle.Category1 and so on. When i thought of EntityId and EntityType and read about them and it seems like i could use these in collisions? But havent found any documentation about how to use this? Can i just use that in for example: collidesWith: Ship. If i in the future begin to have a lots of different type of objects to collide i think it would be easier to remember what is what if i can use “real” names.