// Basic Breakout game

 

// brick position

float brickX;

float brickY;

// brick width and height

float brickH;

float brickW;

// ball position

float ballX;

float ballY;

// ball diameter

float ballD;

// ball direction

float ballDx;

float ballDy;

// bat position

float batX;

// bat width

float batW;

float batH;

// bat colour

float batB;

 

void setup() {

  size (500, 500, P2D);

  // set sizes of game items

  brickW =100;

  brickH = 50;

  batW = 100;

  batH = 25;

  ballD = 25;

  batB = 255;

 

  // random brick position

  brickX = random(0, width - brickW);

  brickY = random(0, height / 2);

 

  // bat in the centre

  batX = (width/2) - (batW/2);

 

  // ball atop bat

  ballX = batX + (batW/2);

  ballY = height - batH - (ballD/2);

 

  // ball movement

  ballDx = random(-5, 5);

  ballDy = -5;        

  rectMode(CORNER);

  ellipseMode(CENTER);

}

 

 

void draw() {

  // check for ball collision

  // with top or sides of bat

  checkBallAgainstBat();

 

  // check for ball collision with

  // left right and top walls

  // and bounce

  checkBallAgainstWalls();

 

  // check ball against brick

  checkBallAgainstBrick();

 

  // move the ball

  ballX += ballDx;

  ballY += ballDy;

  background(0);

 

  // draw the bat

  fill(0, 255, 0);

  rect(batX, height - batH, batW, batH);

 

  // draw the brick

  fill(0, 0, batB);

  batB = (batB + 10) % 255;

  rect(brickX, brickY, brickW, brickH);

 

  // draw the ball

  fill(255, 0, 0);

  ellipse(ballX, ballY, ballD, ballD);

 

  if (keyCode == 37) { // left cursor key

    batX -= 10;

    // keep it on the screen

    if (batX < 0) {

      batX = 0;

    }

  }

  if (keyCode == 39) {

    batX += 10;

    if (batX > (width - batW)) {

      batX = width - batW;

    }

  }

}

 

// when they let go of the key, reset the keyCode

void keyReleased() {

  keyCode = -1;

}

 

// this function checks if the ball has hit the top or sides of the bat and update its

// direction as appropriate so the ball bounces off the bat

void checkBallAgainstBat() {

 // I AM DEVELOPING THIS PART OF THE CODE FOR BALL TO BOUNCE ON BAT. BUT IT

// BOUNCES ON THE  FLOOR.

  if (ballY > height+ballD*2) {

    ballDy = -ballDy;

  }

  else {

    if (ballX > batX ) { 

      if (ballY  > height) { 

        ballDy *= -1;

      }

    }

  }

}

 

 

// this function checks if the ball has hit the brick. It should bounce off the brick and return true if so

boolean checkBallAgainstBrick() {

 

// I AM DEVELOPING THIS PART OF THE CODE FOR THE BALL TO HIT THE BRICK ONLY. BUT IT HITS

//THE  LEFT SIDE OUTSIDE THE BRICK.

  if ((ballY - brickH < brickY)&&(ballX-brickW < brickX)) {// brick bottom

    ballDx *= -1;

    ballDy *= -1;

 

    return true;

  }

  else {

    return false;

  }

}

 

// this function checks if the ball has hit the top, left or right walls and update its

// direction as appropriate so the ball bounces off the walls

void  checkBallAgainstWalls() {

  if (ballX + ballD > width) {// right wall

    ballDx *= -1;

  }

  if (ballX - ballD < 0) {// left wall

    ballDx *= -1;

  }

  if (ballY - ballD < 0) {// top wall

    ballDy *= -1;

  }

}