Hello,
I'm trying to do the PongTable game and i'stuck with the intersects() method. I know there are other ways to do this but i want to understand my mistake. Method signature is: intersects(Actor other).
What is the correct syntax in my case. I want to call the method from here:
The object i want to call is the Paddle:
The Constractor is in the World class:
public class PongTable extends World
{
public static final int SPEED = 5;
public PongTable() {
// Create a new world with 600x400 cells with a cell size of 1x1 pixels.
super(500, 600, 1);
addObject(new Paddle(), 250, 550);
addObject(new Ball(SPEED), 250, 270);
}
}
The error i get when i write something like: (intersects(Paddle)) is
intersects(greenfoot.Actor) in greenfoot actor cannot be applied to ....
Sorry if thats to much code for a small problem.
Thank you in advance.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | public class Ball extends Actor{ private int vSpeed; private int hSpeed; int margin = getImage().getWidth()/2; public Ball (int speed) { vSpeed = speed; hSpeed = speed; } public void act() { move(); if (intersects(?????????)) { //do something } } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | public class Paddle extends Actor{ public static final int WIDTH = 100, HEIGHT=20, SPEED=5; public int hits; public Paddle () { GreenfootImage img = new GreenfootImage (WIDTH, HEIGHT); img.fillRect (0, 0, WIDTH, HEIGHT); setImage (img); hits =0; } public void act() { movePaddle(); } |
