/* "Seed Wind Blossom"
 small version
 Rob Weinberg
 3/14/08
 spindrift.org
 */

int numSpinBoxes = 15;
SpinBox mySpin[] = new SpinBox[numSpinBoxes];
color spinFill = color (255, 255, 255);
int colorSeed = 100;

void setup (){

  size(500,300);
  frameRate(125);
  background(0);
  //colorMode(HSB, 255);


  //create SpinBox instances but do not draw them yet

  for (int i=0; i < mySpin.length; i++){
    //try variations on the spinFactor
    //determines angle of rotation each fan with respect to its neighbors
    int spinFactor = 15*i;
    mySpin[i] = new SpinBox ( 85+20*i, 100+7*i, 6, 120, spinFactor );
  }
}



void draw(){

  noStroke();
  //The second number in "fill" determines amount of ghosting
  fill (0,14);
  rect(0,0,500,300);
  colorMode (HSB, 300);

  //
  //Draw all of the the instances
  //


  //Send a rush of color through
  if (int(random(5)) == 4){
    colorSeed += int(random(-10,10)); //tweak hue
    if (colorSeed > 260) { // leave room for random increment below
      colorSeed = 260;    
    }
    if (colorSeed <40) { // leave room for random increment below
      colorSeed = 40;    
    }

  }


  //Rotate and decide fill color (if any) on all spinBoxes
  for (int i=0; i < mySpin.length; i++){ 
    spinFill = color (colorSeed + i*6, 150, 200);  
    mySpin[i].spinMe();
  }


}


class SpinBox {

  int x;
  int y;
  int xwid;
  int ywid;
  int spinAngle;

  //constructor - does not draw anything yet
  SpinBox (int x, int y, int xwid, int ywid, int spinAngle) {

    //x and y will only be used in "translate"
    this.x = x;
    this.y = y;
    this.xwid = xwid;
    this.ywid = ywid;

    //initial angle of rotation - will increment this later
    this.spinAngle = spinAngle;

  }

  //translate, rotate, and draw the instance
  void spinMe (){

    colorMode (HSB, 300);
    fill(spinFill, 80);

    //Increase the angle of rotation
    this.spinAngle++;
    //Don't increment forever
    if (this.spinAngle == 300){
      this.spinAngle = 0;
    }


    //bring back standard matrix
    pushMatrix();

    translate(this.x, this.y);

    //draw this instance with incremented angle of rotation
    rotate(PI/(150)*this.spinAngle);

    //draw the instance
    rect (0-this.xwid/2, 0-this.ywid/2, this.xwid*mouseX/120 + 2, this.ywid*mouseY/120 + 2);

    //return matrix as you found it
    popMatrix();

  }
}