Hackily copied the moving bbox code into a header.
Hackily copied the moving bbox code into a header.

Also created a wrapper structure which is incredibly
   hacky at the moment but might end up being made
   into a real, sensible wrapper.

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