Looking for more resources about ArrayLists

Processing Beginners
24

This code does run. And is starting to do what I want but not exactly.

  • The subdivided cells only remain during mousePressed, but I want the subdivisions to remain after mouse is pressed.

Code changes are in the mousePressed section.
:thinking: :thinking: :thinking:

ArrayList<PVector>resizeableGrid = new ArrayList();

ArrayList<PVector>subGrid = new ArrayList();

float tile;

void setup() {
  size (600, 600);

  tile = width/3;

  for (float x = 0; x <= width; x+=tile) {
    for (float y = 0; y <= height; y+=tile) {
      PVector pv = new PVector(x, y);
      resizeableGrid.add(pv);
    }
  }
}

void draw() {
  background(255);
  for (PVector pv : resizeableGrid) {
    stroke(0);
    rect(pv.x, pv.y, tile, tile);
  }
}

void mousePressed() {
  //   *** count thru array

  ArrayList<PVector>subGrid = new ArrayList();

  for (int i = 0; i < resizeableGrid.size(); i++) {
    PVector pv = resizeableGrid.get(i);

    // add a cell
    for (float x = 0; x <= width; x+=tile/2) {
      for (float y = 0; y <= height; y+=tile/2) {
        PVector pv2 = new PVector(x, y);
        subGrid.add(pv2);
      }
    }
    rect (pv.x/2, pv.y/2, tile/2, tile/2);
  }//for
}//func
//
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