Paddle.pde

class Paddle {
  //Instance variable declarations
  PVector pos;
  PVector dim;  
  color paddleColor = color(0, 255, 0);

  Paddle(PVector poss, PVector dimensions) { //Set the local variables passed in to the instance variables
    pos = poss;
    dim = dimensions;
  }
  
  void drawPaddle() {
    //TODO apply color to the paddle and draw it
    fill(paddleColor);
    stroke(paddleColor);
    rect(pos.x, pos.y, dim.x, dim.y);

    //Check if the ball is off the screen and update score
    checkOffScreen();
    
    //Check if the ball collided with a paddle
    checkCollision();
  }
  
  void checkOffScreen() {
        
    //TODO fill in the bounderies for walls
    
    //If the ball passes the player
    if (ball.pos.x < 0 ) {
      p2++; //Add a point to the computer
      ball.speed.y = 0; //Reset ball y speed
      ball.pos.x = 500; //Reset x position of the ball
    }
    
    //If the ball goes passed the computer
    if (ball.pos.x > 1000) {
      p1++; //Add a point to the player
      ball.speed.y = 0; //Reset ball y speed
      ball.pos.x = 500; //Reset x position of the ball
    }
    
    //If the ball hits the top
    if (ball.pos.y < 0) {
      ball.speed.y = 2; //Change the ball speed to downwards
    }
    
    //If the ball hits the bottom
    if (ball.pos.y > 650) {
      ball.speed.y = -2; //Change the ball speed to go upwards
    }
  }
  
  void checkCollision(){
    
  //TODO Detect Collisions between Ball and Paddle **CHALLENGING**
    
  //If the ball is moving to the left 
    if (ball.speed.x < 0) {
      if (ball.pos.x < (player.pos.x + player.dim.x) && ball.pos.y > player.pos.y && ball.pos.y < (player.pos.y + player.dim.y)) {
        ball.speed.x*= -1; //Change the direction of the ball
        ball.speed.y = random(-3, 3); //Give the ball a random Y speed
      }
    }
    
    //If the ball is moving to the right
    else {
      if (ball.pos.x > 960 && ball.pos.y > ai.pos.y && ball.pos.y < (ai.pos.y + ai.dim.y)) {
        ball.speed.x*= -1; //Change the direction of the ball
        ball.speed.y = random(-5, 5); //Give the ball a random Y speed
      }
    }
  }
}