/**
 * Drill Block by Robert Twomey
 * built from 
 * Pointillism by Daniel Shiffman. 
 * 
 * Mouse horizontal location controls size of dots. 
 * Creates a simple pointillist effect using ellipses colored
 * according to pixels in an image. 
 */
 
PImage a;
int x, y;
DrillBlock block = new DrillBlock();
int startx, starty;

void setup()
{
  //a = loadImage("eames.jpg");
  a = loadImage("heads.jpg");
  //a = loadImage("six.jpg");
  //a = loadImage("six_160_10levels.jpg");
  //size(a.width*5, a.height*5);
  size(1600, 1200);
  noStroke();
  background(255);
  smooth();
  startx=0;
  starty=0;
  x=0;
  y=0;
}

void draw()
{ 

  color pix = a.get(x*4+startx, y*4+starty);
    
  block.set((int)brightness(pix));
  int m=10;

  fill(0, 64);//this.value*25.5);
  //block.draw(x*m, y*m, round(m*1.2), round(m*1.2), 8, 8);
  block.draw(x*m, y*m, m, m, 8, 8);

  x+=1;
  if(x>=160) {
    x=0;
    y+=1;
    if(y>=120) y=0;
  };  
}