// set up facings and zRot values
protected void SetFacingsAndZRot()
{
zRot = (int)transform.eulerAngles.z; // set z rotation
// set facing and opposite facing depending on the z rotation
facing = PhysicsUtilities.GetFacingDirection(zRot);
oppositeFacing = PhysicsUtilities.GetFacingDirection(zRot, true);
}