// Dartmouth CS 2, Winter 2009, Chris Bailey-Kellogg
// Notes 10 | Sketch 5

PaddleBall ball;
int paddleR=20, wallR=5;  // size of the paddle and wall
color paddleColor=color(random(255),random(255),random(255));

void setup()
{
  size(400,300);
  smooth();
  background(0);
  strokeCap(SQUARE); // so paddles look right
  ball = new PaddleBall(width/2,height/2, 5, 5);
}

void draw()
{
  // wall
  noFill(); stroke(0); 
  rect(0,0,width,height); 
 
  // paddles
  strokeWeight(wallR*2); stroke(paddleColor);
  line(mouseX-paddleR,0,mouseX+paddleR,0);
  line(mouseX-paddleR,height,mouseX+paddleR,height);
  line(width,mouseY-paddleR,width,mouseY+paddleR);
  line(0,mouseY-paddleR,0,mouseY+paddleR);

  // ball
  ball.draw();
  ball.update();
}

void keyPressed()
{
  if (key=='c')  // random color
    paddleColor = color(random(255),random(255),random(255));
  else if (key=='Z') // bigger
    ball.r++;
  else if (key=='z') {
    if (ball.r > 1) ball.r--;
  }
  else if (key=='S') // faster
    ball.s++;
  else if (key=='s') {
    if (ball.s > 1) ball.s--;
  }
}