import {
  World,
  Pico8,
  Group,
  Line,
  Random,
  Vector2,
  degToRad,
} from "../artworld/index.js";
const world = new World("mainCanvas");
window.world = world;

function* spirals() {
  while (true) {
    let g = new Group(world);
    let rc = Random.choice(Object.values(Pico8));
    for (let d = 0; d < 180; d += 10) {
      if (Random.chance(0.9)) {
        new Line(g).to(Vector2.polar(190 - d, degToRad(d))).stroke(rc);
      }
    }
    yield g;
  }
}

function makeGrid(iterable, rows, cols, opts) {
  opts = opts || {};
  let width = opts.width || 50;
  let height = opts.height || 50;
  let xOff = opts.xOff || 0;
  let yOff = opts.yOff || 0;
  for (let c = 0; c < cols; c++) {
    for (let r = 0; r < rows; r++) {
      let result = iterable.next().value;
      if (result === undefined) {
        return;
      } else {
        result.pos(new Vector2(width * c + xOff, height * r + yOff));
      }
    }
  }
}

makeGrid(spirals(), 4, 3, {
  width: 220,
  height: 120,
  xOff: 80,
  yOff: 10,
});

world.draw();