let dish_1 = self.childNode(withName: "dish_1");
let dish_2 = self.childNode(withName: "dish_2");

let square = UIBezierPath(rect: CGRect(x: 0, y: 0,  width: 200, height: 200));
let followSquare = SKAction.follow(square.cgPath, asOffset: true, orientToPath: false, duration: 5.0);

dish_1?.run(SKAction.sequence([followSquare]))
dish_2?.run(SKAction.sequence([followSquare]))