Hi all. So I'm building a platform game, and I'm intending for the final product to be something like a 2D metroid game, in that rooms will consist of many tiles placed together to make them up. What I'm wondering is; what's an efficient way to implement collisions for the floor, walls, and roof? Currently I have one game object per tile, and each tile contains a box collider 2D. This works really well for prototyping, as my level designer can just drop blocks in, but as you'd imagine, this isn't the most efficient method. My first thought is to separate the colliders from the tiles so that many colliders can be combined into one. From there I will probably develop some graphical solution to render a tile sheet (I've seen a tutorial on this, but I'm not totally sure about doing it in a way that's nice to use for the level editor). Anyway, my question is, can you think of a better way to handle world collision?