Cell Splitter - OpenProcessing

mySketch
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/*
  Samson Goodenough
  2018/10/02
  Cell Splitter
*/
​
ArrayList<Cell> cells = new ArrayList<Cell>();
​
PImage img;
​
void setup() {
  size(1000, 1000);
  img = loadImage("laugh.jpg");
​
  cells.add(new Cell(width/2, height/2, width));
}
​
void draw() {
  background(21);
  
  for (int i = 0; i < cells.size(); i++) {
    if (cells.get(i).clicked()) {
      splitCell(i);
      break;
    }
  }
​
  for (int i = 0; i < cells.size(); i++) {
    cells.get(i).display();
  }
}
​
void mousePressed() {
  for (int i = 0; i < cells.size(); i++) {
    if (cells.get(i).clicked()) {
      splitCell(i);
    }
  }
}
​
void splitCell(int i) {
  cells.add(new Cell(cells.get(i).x - cells.get(i).size/4, cells.get(i).y - cells.get(i).size/4, cells.get(i).size/2)); //top left
  cells.add(new Cell(cells.get(i).x + cells.get(i).size/4, cells.get(i).y - cells.get(i).size/4, cells.get(i).size/2)); //top right
  cells.add(new Cell(cells.get(i).x - cells.get(i).size/4, cells.get(i).y + cells.get(i).size/4, cells.get(i).size/2)); //bot left
  cells.add(new Cell(cells.get(i).x + cells.get(i).size/4, cells.get(i).y + cells.get(i).size/4, cells.get(i).size/2)); //top right
  cells.remove(i);
}
​
class Cell{
  float x;
  float y;
  float size;
  
  Cell(float m, float n, float s){
    x = m;
    y = n;
    size = s;
    noStroke();
  }
  
  void display(){
    fill(img.get(int(x), int(y)));
    ellipse(x, y, size, size);
  }
  
  boolean clicked(){
    if(dist(x, y, mouseX, mouseY) < size/2){
      return true;
    }
    return false;
  }
}