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  Collision not working  (Read 756 times)
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Offline 8bitooze

Senior Newbie





« Posted 2011-02-16 16:11:08 »

Hi all,

I'm almost done with the beta version of my game and just need a few things ironed out. I'm having problems getting collision detection working with my game. In my game the objects have getBounds() methods as so:
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public Rectangle getBounds() { return (new Rectangle(getX(), getY(), getWidth(), getHeight())); }


Then inside my game loop i call:
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public void run()
{
...
  checkCollisions();
}

of which the body of the method is:
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public final void checkCollisions()
{
  if(ball.getBounds().contains(paddle.getX(), paddle.getY()))
  {
     ball.setY(50); // temporary debug  setting

     ball.setVY(-ball.getVY());
  }
}

What's weirder is the collision detection seems to return random values as sometimes the ball will collide with the paddle, and sometimes it will just go through it. The source code for the game can be obtained  here Any assistance in this matter would be greatly appreciated.

Sincerely,

8BitOoze

[size=3]8BitOoze[/size]
Offline Captain Awesome

Junior Member


Medals: 2


Hi


« Reply #1 - Posted 2011-02-16 17:15:30 »

try using ball.getBounds().intersects(paddle.getBounds()); instead
Offline avm1979
« Reply #2 - Posted 2011-02-16 18:13:11 »

It looks like you're checking if one of the corners - (getX(), getY()) is inside the paddle - not the center of the ball.

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