/*
By Sajid Saiyed
http://www.ssdesigninteractive.com/g2
http://www.ssdesigninteractive.com/blog
Do let me know if you happen to imrovise this code
*/
// Number of attractors
int maxnum = 20;

// Color parameters (Tarbell's colour technique)
int maxpal = 512;
int numpal = 0;
color[] goodcolor = new color[maxpal];

// Attractors
Attractors[] att = new Attractors[maxnum];
Followers[] fol = new Followers[maxnum];
// SETUP
void setup(){
  size(500, 500);
  takecolor("111.gif");
  background(255);
  smooth();
  // Create Attractors
  for(int i=0; i<att.length; i++){
    int nm = -40;
    int nmx = 40;
    int intv = 0;
    att[i] = new Attractors(nm, nmx, intv);
  }
  // Create a follower for each attractor  
  for(int j=0; j<fol.length; j++){
    fol[j] = new Followers(att[j]);
    fol[j].c = somecolor();
  }
}

void draw(){
  // Initiate render and update of each attractor and follower
  for (int n=0;n<maxnum;n++) {
    att[n].update();
    att[n].render();
    fol[n].update();
    fol[n].render();
  }
}


// COLOR METHODS ----------------------------------------------------------------

color somecolor() {
  // pick some random good color
  return goodcolor[int(random(numpal))];
}


void takecolor(String fn) {
  PImage b;
  b = loadImage(fn);
  image(b,0,0);

  for (int x=0;x<b.width;x++){
    for (int y=0;y<b.height;y++) {
      color c = get(x,y);
      boolean exists = false;
      for (int n=0;n<numpal;n++) {
        if (c==goodcolor[n]) {
          exists = true;
          break;
        }
      }
      if (!exists) {
        // add color to pal
        if (numpal<maxpal) {
          goodcolor[numpal] = c;
          numpal++;
        }
      }
    }
  }
}