I have 5 sprites, they are pieces of the background. I sliced it because unity makes the background as 1 piece looks bad. I want to combine that pieces and add a polygon collider to them, so my game object could walk in that background and couldn’t fall through it. However, I don’t want to add a collider for each sprite, cause it will lead to technical problems with productivity. I really hope u, guys, help me.
You can create an empty game object with as big collider as you want, and nesting(parenting) those 5 sprites inside it, so that the sprites are its children.