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 Collision Handling Issue - Brick Breaker Game  (Read 1427 times) 0 Members and 1 Guest are viewing this topic.
SteM

Junior Newbie

 « Posted 2011-12-16 12:41:29 »

Hello guys, i'm working on a game project which is a basic brick breaker type game but i have some trouble in collisions between ball and the bricks. I wanted to revert the balls velocity according to the side of the brick that ball collides with. For this purpose i provided the code below. Here i got a problem, when the ball hits to a brick it just simply reverts the both velocities ( i am aware that my code over detects collisions ), my question is that, is there any better approach that can i follow, because it seems that i cannot handle the 4 side collisions with this approach. Any suggestions will be appreciated, thanks.

 1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37 `if ( ball.getBounds().intersects(brick.getBounds()) ){                  boolean bottom  = ball.getVy() < 0 && ball.getY()<= brick.getY() + brick.getHeight();                  boolean top  = ball.getVy() > 0 && ball.getY()+ball.getHeight()>= brick.getY();                  boolean left = ball.getVx() > 0 && ball.getX() + ball.getWidth() >= brick.getX();                  boolean right = ball.getVx() < 0 && ball.getX() <= brick.getX()+brick.getWidth();                                    // Left Side                  if (left)                   {                     ball.setPosX(br.getX() - ball.getWidth()); // reposition ball                     ball.setVx(-ball.getVx());                                       }                  // Right Side                  else if (right)                   {                     ball.setPosX(br.getX());        // reposition ball                     ball.setVx(-ball.getVx());                                       }                  // Bottom Side                  if (bottom)                   {                     ball.setPosY(brick.getY()+brick.getHeight());    // reposition ball                     ball.setVy(-ball.getVy());                  }                                    // Top Side                  else if (top)                   {                     ball.setPosY(brick.getY()-ball.getHeight());    //reposition ball                     ball.setVy(-ball.getVy());                  }}`
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