class Drop{
  float centerX, centerY;
  float orbit, radius; 
  float direction, angle; 
  int step;
  int colHue, colSat;
  
  Drop(){
    centerX = mouseX;
    centerY = mouseY;
    //centerX = width/2;
    //centerY = height/2;
    orbit = random(10,(width+height)/6);
    radius = random(10,30);
    direction = random(-PI, PI);
    angle = random(-PI*0.5, PI*0.5);
    if (angle == 0) angle = 0.1;
    while (abs(angle)<(PI/10))
      angle *=10;
    step = 0;
    colHue = (int)random(0,count);
    colSat = (int)random(0,count);
  }
  
  boolean Paint(){

    float rd = (radius/(count*count)) * step * step;
    float an = direction + ((angle/count) * step);
    float pX = centerX + (cos(an) * orbit);
    float pY = centerY + (sin(an) * orbit);

    if (step<count){
      fill(colHue,colSat,count,(max(step,count/4)));
      ellipse(pX,pY,rd,rd);
    }
      
    step ++;
    return (step>count);
  }
  
}