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ArrayList<PVector> cake;

void setup(){
  
  size(400, 200);
    
  cake = new ArrayList();
    
}


void draw(){

  background(120);
  for (int i=0; i<cake.size(); i++){
     rect(cake.get(i).x, cake.get(i).y, 10, 10);
     text(cake.indexOf(cake.get(i)), cake.get(i).x, cake.get(i).y);
  }
  
}


void mousePressed(){
 
  PVector _mousePos = new PVector(mouseX, mouseY);
  cake.add(_mousePos);
  
}