var __b__;
__b__ = action_if_variable(stuffs, 0, 0);
if __b__
{
{
stuffs = 1;
if y < 20 or y > 750
   {
   vspeed = -vspeed
   }
if x < 20 or x > 1000
   {
   hspeed = -hspeed
   }

}
}