/** 
a parallax scrolling bokeh experiment by <a href="http://www.local-guru.net/blog">guru,</a>
click to generate a new image
*/

PVector[][] c;

void setup() {
  size(300,300);
  smooth();
  c = new PVector[4][5];
  for ( int j = 0; j < 4; j++) {
    colorMode( HSB );
    filter( BLUR, 8 - j*2);
    for ( int i = 0; i < 5; i++) {
      float h = random(255);
      int x = (int)random(10);
      int y = (int)random(10);
      c[j][i] = new PVector( x,y,h);
    }
  }
}

void draw() {
  background(0);
  for ( int j = 0; j < 4; j++) {
    float ofx = map( mouseX, 0, width, 0, (12-4*j))-(6-2*j);
    colorMode( HSB );
    
    for ( int i = 0; i < 5; i++) {
      
      fill( c[j][i].z, 255, 200 );
      strokeWeight( 4);
      stroke( c[j][i].z, 255, 255 );
      ellipse( c[j][i].x * 30+15 + ofx, c[j][i].y * 30+15, 30, 30);
    }  
    filter( BLUR, 7-j*2);
  }
  
}

void mousePressed() {
  c = new PVector[4][5];
  for ( int j = 0; j < 4; j++) {
    colorMode( HSB );
    filter( BLUR, 8 - j*2);
    for ( int i = 0; i < 5; i++) {
      float h = random(255);
      int x = (int)random(10);
      int y = (int)random(10);
      c[j][i] = new PVector( x,y,h);
    }
  }
  
}