/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://cst1101.sketchpad.cc/sp/pad/view/ro.$FearrclflO/rev.908
 * 
 * authors: 
 *   Joe Perrino
 *   Jeff Hammer

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



/* pong
 by joe perrino and jeff hammer */
int bumperOffset = 15;
int play1 = 0;
int play2 = 0;
Ball ball;
Bumper bumper1;
Bumper bumper2;
void setup()
{
  size(500, 500);
  smooth();
  background(255);
  textSize(50);
  fill(0);
  ball = new Ball(width/2, height/2);
  bumper1 = new Bumper(width-width+bumperOffset, (height/2));
  bumper2 = new Bumper(width-bumperOffset, (height/2));
}
void draw()
{
  background(255);
  bumper1.display();
  bumper2.display();
  ball.bounce();
  text(play1, 200, 50);
  text(play2, 300, 50);
}
void keyPressed()
{
  if (key == 'q' || key == 'Q')
  {
    bumper1.move('U');
  }
  if (key == 'z' || key == 'Z')
  {
    bumper1.move('D');
  }
}
void mouseMoved()
{
  bumper2.allign();
}
//*************************************************
class Ball
{
  float xpos;                 // ball x-coord
  float ypos;                 // ball y-coord
  float xspeed = 3;           // ball x-speed
  float yspeed = 3;           // ball y-speed
  int radius = 25;          // ball radius
  float xdir = random(-1, 1);   // ball x-dir
  float ydir = random(-1, 1);   // ball y-dir
  color col = color(255, 0, 0); // ball color

  Ball(int _xpos, int _ypos)
  {
    xpos = _xpos;
    ypos = _ypos;
  }

  void bounce()
  {
    xpos += (xspeed * xdir); // combine x position with x direction
    ypos += (yspeed * ydir); // combine y position with y direction

    if (xpos < 0 || (xpos+radius) > (width-radius))
    {
      xdir *= -1;
      if (xpos < 0) {
        play2++;
      }
      else {
        play1++;
      }
    }  
    if (ypos < 0 || (ypos+radius) > (height-radius))
    {
      ydir *= -1;
    }
    if (xpos >= 15 && xpos <= 20 && ypos >= (bumper1.ypos - 55) && ypos <= (bumper1.ypos + 55))
    {
      xdir = abs(xdir);
    }
    if (xpos >= 430 && xpos <= 435 && ypos >= (bumper2.ypos - 55) && ypos <= (bumper2.ypos + 55))
    {
      xdir = -1 * abs(xdir);
    }

    noStroke();
    fill(col);
    ellipse(xpos+radius, ypos+radius, radius*2, radius*2);
  }

  void paddleStrike()
  {
    xdir *= -1;
    ydir = random(-1, 1);
  }
}
//***************************************************
class Bumper
{
  int length = 100; // bumper length
  int width = 10;  // bumper width
  int xpos;        // bumper x pos
  int ypos;        // bumper y pos
  int speed = 10;  // bumper move speed

  Bumper(int _xpos, int _ypos)
  {
    xpos = _xpos;
    ypos = _ypos;
  }

  void allign() {
    ypos = mouseY;
  }

  void display()
  {
    noStroke();
    fill(0);
    rectMode(CENTER);
    rect(xpos, ypos, width, length);
  }

  void move(char dir)
  {
    if (dir == 'U')
    {
      ypos -= speed;
    }
    if (dir == 'D')
    {
      ypos += speed;
    }
  }
}