A little late, but I think the reply is worth it. `[]` is for discrete elements. That's perfect for a tile game. My idea with `@` is a sort of collision detec

A little late, but I think the reply is worth it. `[]` is for discrete elements. That's perfect for a tile game. My idea with `@` is a sort of collision detection for continuous maps. `map @ (115.2, 23.5)` should return the object under that position. This operation is useful on all sorts of interactions: "can I move there?", "what did the mouse click?", "do I have a line of sight?", etc. I'm still thinking on how to chain those operations.