Java Community | Help. Code. Learn.•2mo ago

Need help with fixing bug of ball not moving

Basically I have an assignment and we are using processing to do the assignment as the teacher basically told us to make a game where we have a small red ball moving around the canvas and if it touches the edges then it bounces back away and it if it hits the black ball its supposed to bounce back aswell and respawn a new black ball however I've been having a problem with it. For some reason the ball won't moving across the canvas rather it is just budging itself and even when i press x or y it doesnt do anything i uploaded a video of how it is supposed to work

9 Replies

JavaBot•2mo ago

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NabzPlaysOP•2mo ago

currently this is the point i got to

NabzPlaysOP•2mo ago

heres the work sheets:

NabzPlaysOP•2mo ago

NabzPlaysOP•2mo ago

I don't want to show all my code for obvious reason but heres some of it which i think my be causing the bug

void moveBall() {
  ballX =+ speedX;
  ballY =+ speedY;
  ballX = constrain(ballX, 0, width);
  ballY = constrain(ballY, 0, height);
}

void bounceBall() {
  if ((ballX - (ballWidth /2)) <= 0){ 
   speedX = -speedX;
  }
  else if ((ballX + (ballWidth / 2)) >= width){
    speedX = -speedX;
  }
  else if ((ballY - (ballWidth /2)) <= 0){ 
   speedY = -speedY;
  }
  else if ((ballY + (ballWidth / 2)) >= height){
    speedY = -speedY;
  }
}
void draw() {
  background(127);
  // draw the ball
  drawColourCircle(ballX, ballY, ballWidth, color(255, 0, 0));
  // move the ball
  moveBall();
  
  if (checkCollide(ballX, ballY, ballWidth, holeX, holeY, holeWidth)) {
    initializeHole();
    initializeSpeed();
  }
  
  // bounce the ball ( if necessary)
  bounceBall();
  drawColourCircle(holeX, holeY, holeWidth, color(0));
}

void moveBall() {
  ballX =+ speedX;
  ballY =+ speedY;
  ballX = constrain(ballX, 0, width);
  ballY = constrain(ballY, 0, height);
}

void bounceBall() {
  if ((ballX - (ballWidth /2)) <= 0){ 
   speedX = -speedX;
  }
  else if ((ballX + (ballWidth / 2)) >= width){
    speedX = -speedX;
  }
  else if ((ballY - (ballWidth /2)) <= 0){ 
   speedY = -speedY;
  }
  else if ((ballY + (ballWidth / 2)) >= height){
    speedY = -speedY;
  }
}
void draw() {
  background(127);
  // draw the ball
  drawColourCircle(ballX, ballY, ballWidth, color(255, 0, 0));
  // move the ball
  moveBall();
  
  if (checkCollide(ballX, ballY, ballWidth, holeX, holeY, holeWidth)) {
    initializeHole();
    initializeSpeed();
  }
  
  // bounce the ball ( if necessary)
  bounceBall();
  drawColourCircle(holeX, holeY, holeWidth, color(0));
}

NabzPlaysOP•2mo ago

Help.pde

JavaBot•2mo ago

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NabzPlaysOP•2mo ago

still need help

JavaBot•2mo ago

💤 Post marked as dormant

This post has been inactive for over 300 minutes, thus, it has been archived. If your question was not answered yet, feel free to re-open this post or create a new one. In case your post is not getting any attention, you can try to use /help ping. Warning: abusing this will result in moderative actions taken against you.

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Need help with fixing bug of ball not moving