Before adding the “friction” option, objects in motion would slide around with zero friction. This default behavior would be problematic for players who like to build interactive levels (ex: buildings that collapse, walls that topple over, doors that slide etc.)

To solve this issue, I added an option that allows the player to increase the movable object’s  friction value. The more friction, the less “slippery” behavior.


  • Added friction slider
  • Added history description
  • Refactored outdated functions
  • Fixed player replacement exploit