1PlayerPong - OpenProcessing

mySketch
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var LEFTWALL, RIGHTWALL, TOPWALL, BOTTOMWALL;
var isplaying = true;
var score = 0;
var timer;
// ball variables
var ballX = 400; var ballY = 250;
var ballSpeed = 7;
var ballDX = 1; var ballDY = -1;
// player 1's paddle
var paddle;
var paddleX = 1400; var paddleY = 250;
var paddleW = 30; var paddleH = 100;
var paddleSpeed = 10;
//bot paddles
var bot1X = 200; var bot1Y = 250;
var bot1W = 30; var bot1H = 160;
var bot2X = 400; var bot2Y = 500;
var bot2W = 30; var bot2H = 250;
var bot3X = 340; var bot3Y = 150;
var bot3W = 30; var bot3H = 100;
​
function setup() {
  createCanvas(windowWidth, windowHeight);
  rectMode(CENTER);
  textAlign(CENTER);
  textSize(50); 
}
​
function draw() {
  background(0);
  if(!isplaying)  //STARTUP SCREEN
  {
    fill(random(255), random(255), random(255), 150);
    frameRate(3);
    textAlign(CENTER);
    text('PRESS SPACE TO START', width/2, height/2-100);
    text('SCORE FIVE GOALS AS FAST AS YOU CAN', width/2, height/2);
  }
  
  if(isplaying) // MAIN GAME
  {
  fill(255, 0, 255, 100);
  timer = 0;
  timer = int(millis()/1000);
  text(timer + ' SECONDS' + '    SCORE: ' + score, width/2, height/2-300);
  keyPressed();
  frameRate(60);
  fill(255, 0, 255, 100);
  TOPWALL = rect(0, 0, 3500, 20);
  BOTTOMWALL = rect(0, windowHeight, 3500, 20);
    
  //draw ball
  noStroke();
  fill(random(255), random(255), random(255));
  rect(ballX, ballY, 20, 20);
    
  //draw paddle 
  noStroke(); 
  fill(random(255), random(255), random(255)); 
  rect(paddleX, paddleY, 30, 100);
  
  //draw bot paddles
  noStroke();
  fill(random(255), random(255), random(255));
  rect(bot1X, bot1Y, 30, 160);
  //bot2
  noStroke();
  fill(random(255), random(255), random(255));
  rect(bot2X, bot2Y, 30, 250);
  //bot3  
  noStroke();
  fill(random(255), random(255), random(255));
  rect(bot3X, bot3Y, 30, 100);  
    
  //move ball 
  ballX = ballX+(ballDX*ballSpeed); 
  ballY = ballY+(ballDY*ballSpeed); 
    
  //BALL HITS PADDLE
  if(ballX >= paddleX-paddleW/2 && ballX <= paddleX+paddleW/2 && ballY >= paddleY-paddleH/2 && ballY <= paddleY+paddleH/2){
    //hit player so bounce
    ballDX = ballDX*-1;
    }
    
  if(ballX >= bot1X-bot1W/2 && ballX <= bot1X+bot1W/2 && ballY >= bot1Y-bot1H/2 && ballY <= bot1Y+bot1H/2){
    //hit player so bounce
    ballDX = ballDX*-1;
    ballSpeed*=1.01;
    }
    
  if(ballX >= bot2X-bot2W/2 && ballX <= bot2X+bot2W/2 && ballY >= bot2Y-bot2H/2 && ballY <= bot2Y+bot2H/2){
    //hit player so bounce
    ballDX = ballDX*-1;
    ballSpeed*=1.01;
    }
    
  if(ballX >= bot3X-bot3W/2 && ballX <= bot3X+bot3W/2 && ballY >= bot3Y-bot3H/2 && ballY <= bot3Y+bot3H/2){
    //hit player so bounce
    ballDX = ballDX*-1;
    ballSpeed*=1.01;
    } 
    
  //WHEN BALL HITS WALL
  if(ballX >= width) {
    ballDX = ballDX*-1;
    score--;
  }
  if(ballX <= 0) {
    ballDX = ballDX*-1;
    score++;
  }
  if(ballY >= height) {
    ballDY = ballDY*-1;
  }
  if(ballY <= 0) {
    ballDY = ballDY*-1;
  }
  
  if(score>=5){
  background(0);
  fill(random(255), random(255), random(255), 150);
  frameRate(3);
  textAlign(CENTER);
  text('YOU WIN', width/2, height/2-50);
  text('PRESS REFRESH TO PLAY AGAIN', width/2, height/2); 
  }
}
​
function keyPressed(){
  if(key == ' '){
    restartGame();
  }
  if(keyCode == UP_ARROW){
    paddleY = paddleY-paddleSpeed; //move up
  }
  if(keyCode == DOWN_ARROW){
    paddleY = paddleY+paddleSpeed; //move down
  }
}
  
function restartGame(){
  score = 0;
  timer = 0;
  isplaying = true;
}
}