Fixed a long-standing bug with autobots' floatation.
Fixed a long-standing bug with autobots' floatation.

Before this, they would sometimes get stuck on corners due to gravity
   combined with the fact that they don't levitate when the tile right
   under them is air, even though they're supposed to levitate 1.25 tiles
   up instead of just 1.
I had to adjust the dig-laser locations to accommodate the change, so
   they might not be ideal right now.

Lasercake/Lasercake,Lasercake/Lasercake,idupree/Lasercake,elidupree/Lasercake,Lasercake/Lasercake,elidupree/Lasercake,idupree/Lasercake,elidupree/Lasercake,idupree/Lasercake,idupree/Lasercake,idupree/Lasercake,Lasercake/Lasercake,idupree/Lasercake,elidupree/Lasercake,idupree/Lasercake,elidupree/Lasercake,Lasercake/Lasercake,elidupree/Lasercake,elidupree/Lasercake