// Based on Examples | Basic | Pointillism

PImage[] imgs = new PImage[4]; // loaded images
PImage img;                    // current image
int curImg = 0;                // current image

int numLines=3;     // how many lines per mouse press
int sz=10;          // size of lines
int pt=100;         // how many dits to add every frame

void setup() 
{
  size(300,450);
  smooth();
  noStroke();
  background(0);

  for(int i = 0; i < imgs.length; i ++) imgs[i] = loadImage("img-"+(i+1)+".jpg");
  img = imgs[curImg];
}

void draw() 
{
  for(int i = 0; i < pt; i ++) {
    // pick a random position and size
    int x = int(random(img.width));
    int y = int(random(img.height));
    float s = random(2,10);
  
    // get the color from the image
    color pixel = img.get(x,y);
  
    // draw a little ellipse
    fill(pixel);
    ellipse(x,y,s,s);
  }
}

void keyPressed() {
  if(key == ' ') {
    curImg = (curImg+1)%imgs.length;
    img = imgs[curImg];
  }
}

// START NO NOTES
// code used to capture screenshots
void keyReleased() {
  if(key == '`' && !online) save("sketch.png");
}