if (paddle.collision(ball1)){

                        if (ball1.getCenterY() + ball1.getRadius()<paddle.getTopLeftY()||ball1.getCenterY() - ball1.getRadius()>paddle.getTopLeftY()){
                            ball1.setDirectionX(ball1.getDirectionX()*-1);
                        }
                        else{ball1.setDirectionY(ball1.getDirectionY()*-1);}

                    }