Javascript classes, but more a design question

p5.js Beginners
2

Not sure what you’re trying to accomplish, but the following code creates a grid of points (or can be adapted to draw about any shape you like).

let _numRows = 60;
let _numCols = 60;

function pointGrid(left, top, ptSize, colGap, rowGap) {
  for(let k = 0; k < _numRows; k++) {
    for(let j = 0; j < _numCols; j++){
      let x = left + j*(colGap);
      let y = top + k*(rowGap);
      stroke(0,0,255);
      strokeWeight(2.0);
      circle(x,y,ptSize);
    }
  }
 }

function setup() {
  createCanvas(630, 630);
  background(209);
  pointGrid(20, 20, 2, 10, 10);
}

function draw() {
}