SpaceRock/objects/obj_rock_shield/Step_0.gml

if status == "follow"
{
	x = mouse_x + r * cos(degtorad(-image_angle));
	y = mouse_y + r * sin(degtorad(-image_angle));
	image_angle++;
	if spread
	{
		if r++ > 224
			spread = false;
	}
	else if r-- < 160
		spread = true;
}