int points = 0;
int lives = 3;

int framesTillAnotherDrop = 200;
float particlesPerFirework = 1;

float playerX = 200;
float compX = 200;

float ballX = 200;
float ballY = 250;
float ballVX = -2.5;
float ballVY = 2.5;
float ballSize = 10;

//float ballD = DOWN; UP RIGHT LEFT
int bDirection = DOWN;

float paddle_width = 80;

void keyPressed()
{
  if (keyCode == UP)
    bDirection = UP;
  if (keyCode == DOWN)
    bDirection = DOWN;
  if (keyCode == LEFT)
    bDirection = LEFT;
  if (keyCode == RIGHT)
    bDirection = RIGHT;
}

float bSpeed = 3;
void moveBall()
{
  ballVX = 0;
  ballVY = 0;
  if (bDirection == DOWN)
    ballVY = bSpeed;
  if (bDirection == UP)
    ballVY = -bSpeed;
  if (bDirection == LEFT)
    ballVX = -bSpeed;
  if (bDirection == RIGHT)
    ballVX = bSpeed;


  ballX += ballVX;
  ballY += ballVY;

  //side to side bounce
  if (ballX < 0)
  {
    ballVX*=-1;
  }
  if (ballX > width)
  {
    ballVX*=-1;
  }

  //Bounce for player paddle
  if (ballY > (height-paddle_width*.5))
  {
    float paddleBegin = playerX-paddle_width/2;
    float paddleEnd = playerX+paddle_width/2;
    if (ballX > paddleBegin && ballX < paddleEnd)
    {
      ballVY*=-1;
    }
  }

  if (ballY < (paddle_width*.5))
  {
    float paddleBegin = compX-paddle_width/2;
    float paddleEnd = compX+paddle_width/2;
    if (ballX > paddleBegin && ballX < paddleEnd)
    {
      ballVY*=-1;
    }
  }


  //Check for winning conditions
  if (ballY > height-paddle_width*.5+5)
  {
    points -= 1;
    //reset ball position
    ballX = 200;
    ballY = 250;
  }

  if (ballY < paddle_width*.5 - 5)
  {
    points += 1;
    //reset ball position
    ballX = 200;
    ballY = 250;
  }
}

void think()
{
  if (ballX > compX)
  {
    compX += 2;
  }
  if (ballX < compX)
  {
    compX -= 2;
  }
}


void draw() {

  background(100);
  stroke(0);
  fill(0);

  //Points
  textSize(32);
  text("points "+points, 32, 25);

  //Draw paddles
  rect(playerX - paddle_width/2, height-paddle_width*.5, paddle_width, paddle_width*.2);
  rect(compX - paddle_width/2, paddle_width*.5, paddle_width, paddle_width*.2);

  //Draw ball
  ellipse(ballX, ballY, ballSize, ballSize);

  playerX = mouseX;
  //compX = width - mouseX;
  think();

  moveBall();
}

void mouseClicked()
{
  //background(0); // clear screen
  //populateThings(); //start over
  //mouseBomb();
}

void setup() {
  size(400, 500);
  colorMode(HSB, 100);
  //mono = loadFont("AndaleMono-32.vlw");
  //populateThings();
  //println(UP);
}