int circleSize = 1;
int mrRed = 0;
int mrGreen = 0;
int mrBlue = 0;
float mrRandom = 0;
int circleMax = 500;

void setup(){

   size(400, 400);
   background(0);
   stroke(100,50,255);
   strokeWeight(1);
   noFill();
   smooth();
   frameRate(5);
   rectMode(CENTER);

}

void mouseReleased() {

   mrRandom = random(0,255);
   mrRed = int(mrRandom);

   mrRandom = random(0,255);
   mrGreen = int(mrRandom);

   mrRandom = random(0,255);
   mrBlue = int(mrRandom);

   mrRandom = random(10,500);
   circleMax = int(mrRandom);

   stroke(mrRed,mrGreen,mrBlue);

   while(circleSize < circleMax){
     if ((circleMax % 2) == 0)
     {
       ellipse(mouseX,mouseY,circleSize,circleSize);
       circleSize = circleSize + 1;
     }else{
       rect(mouseX,mouseY,circleSize,circleSize);
       circleSize = circleSize + 1;
     }

   }
   circleSize = 1;

}

void draw(){

   //fill(0,0,0,10);
   rect(200,200,400,400);

}