paint by pong - OpenProcessing

paintbypong2
xxxxxxxxxx
 
//PGraphics pg;
​
int cols = 600;
int rows = 600;
int i, j;
color b1, b2;
​
//float pi = 3.14;
​
// for ball
float ballX = 300;
float ballY = 300;
float ballRadius = 20;
// for making ball move
float speed = 2;
float directionX = 1;
float directionY = 1;
// for calculating distance
float longestDistance, shortestDistance; 
float distance1, distance2;
// for paddles
int paddle1X; 
int paddle2X;
int paddleY;
​
// Declare pixel Array
int[][] pixelRed = new int[cols][rows];
int[][] pixelGreen = new int[cols][rows];
int[][] pixelBlue = new int[cols][rows];
​
void setup() {
  size (600, 600);
​
  // distances between paddle and ball  
  longestDistance = sqrt(50*50 + 30*30);
  shortestDistance = 15;
  
  // Initialize colors
  b1 = color(203, 102, 0);
  b2 = color(0, 102, 153);
​
  // Initialize pixel RGB values
  for (j = 0; j < cols; j++) {
    for (i = 0; i < rows; i++) {
      pixelRed[i][j] = 255;
      pixelGreen[i][j] = i/3;
      pixelBlue[i][j] = j/3;
    }
  }
  
  //pg = createGraphics(40,40);
​
  //Draw background gradience
  // for (i = 0; i < cols; i++) {
  //   for (j = 0; j < rows; j++) {
  //     fill(0, pixelGreen[i][j]/3, pixelBlue[i][j]/3);
  //     noStroke();
  //     ellipse(i, j, 20, 20);
  //   }
  // }
  //setGradient(0,0,width/2,height,b1,b2,1);
  
  background(0);
}
​
void draw () {
  /* draws ball
   fill(255);
   noStroke();
   ellipse(ballX, ballY, ballRadius*2, ballRadius*2); */
​
  // draws gradience based on ball location
  if (ballY > 0 && ballY < cols && ballX > 0 && ballX < rows) {
    i = int(ballX);
    j = int(ballY);
    fill(pixelRed[i][j], pixelGreen[i][j], pixelBlue[i][j]);
    noStroke();
    ellipse(i, j, ballRadius*2, ballRadius*2);
  }  
​
  /**************** trying PGraphics */
  // pg.beginDraw();
  // pg.fill(255, 255, 255);
  // pg.noStroke();
  // pg.ellipse(ballX, ballY, ballRadius*2, ballRadius*2); 
  // pg.endDraw();
​
  move(); // make ball move
​
    noStroke();
  fill(0);
  rect(0, 0, 20, 1200); // cover left paddle trail
  fill(0);
  rect(cols, 0, 20, 1200); // cover right paddle trail
​
  // draws paddles
  fill(255);
  noStroke();
  paddleY = mouseY;
  paddle1X = 0;
  paddle2X = width;
  rectMode(CENTER);
  rect(paddle1X, paddleY, 20, 100); // left paddle
  rect(paddle2X, paddleY, 20, 100); // right paddle
​
  bounce(); // make ball bounce
}
​
/******************************* Functions */
// function make ball move
void move () {
  if (!mousePressed) {
    ballX = ballX + speed * directionX;
    //ballY = ballY + (pow(speed, 4) * directionY);
    ballY = ballY + speed * directionY;
  } else {
    //ballY = ballY + speed * directionY;
    //ballY = ballY + (sin(speed*2) * directionY);
​
    //ballY = ballY + (pow(speed, 2) * directionY);
    ballX = ballX + speed;
​
    ballY = ballY + (pow(speed, 2) * directionY);
    // fill(255,0,0);
    // ellipse(i, j, 40, 40);
  }
}
​
// function make ball bounce
void bounce () {  
  // distances between paddle and ball
  distance1 = sqrt((paddleY - ballY) * (paddleY - ballY) + (paddle1X - ballX) * (paddle1X - ballX));
  distance2 = sqrt((paddleY - ballY) * (paddleY - ballY) + (paddle2X - ballX) * (paddle2X - ballX));
​
  // ball bounce if hit top or bottom of screen
  if (ballY < 0+20 || ballY > height-20) {
    directionY = directionY * -1 + random(-.3, .3);
    ballRadius = ballRadius * 1.1;
  }
  // ball bounce if touch paddles
  else if (distance1 <= longestDistance || distance2 <= longestDistance) { 
    if (ballX == 30 || ballX == width - 30) {
      directionX = directionX * -1; 
      directionY = directionY + random(-.3, .3); 
      ballRadius = ballRadius * 1.1;
      //counter++;
    }
  }
}
​
// void mousePressed() {
//   ballY = ballY + (pow(speed, 5) * directionY);
// }
​
​