Brickcraft Windows game 7hours ago News I have added a new block, the water one. It does not expand progressively, but it is "liquid" for the player. To make it possible, you have to play with physics. Since when you are underwater, the movement is slower and you can float. We need a block that does not collide with the player, while at the same time it does collide with the player so we know that it is inside him. How do we resolve this inconsistency? Using different physical layers. In Unity, physics work on multiple layers and we can uncheck which ones collide with each other: