Drag the bricks around. They behave like they're solid and there's gravity. You can stick bricks in place by overlapping them or touching the 'walls'.
Experimenting with sprites with simple built-in laws of physics. Just copy any brick to add more. No overall script is needed to control interactions, just the simple script within each sprite. This version has better gravity - at the cost of being more complex - after a suggestion from @Shroomyjoe.
