Classical Inheritance Example

class Layer {
  constructor () {
    // console.log('new Layer with', arg)
    this.sides = SIDES 
    this.layerColor = null
    this.numShapes = this.sides                               
    this.angle = TWO_PI / this.numShapes                      
    this.stepsOut = 8
    this.singleStep = (CRYSTAL_SIZE / 2) / this.stepsOut
    this.thinStroke = 1
    this.thickStroke = 3

    this.layerColor = getRandomFromPalette(PALETTE)
    rectMode(CENTER)
  }
}

class Circles extends Layer {                         
  constructor () {
    super()
    this.shapeSize = (CRYSTAL_SIZE / 2) * 0.93
    this.position = (CRYSTAL_SIZE / 2) - (this.shapeSize / 2)
  }
  
  render () {
    stroke(this.layerColor)
    strokeWeight(this.thinStroke)
    noFill()
    push()
    // translate(width / 2, height / 2)
    for (let i = 0; i <= this.numShapes; i++) {
      ellipse(this.position, 0, this.shapeSize, this.shapeSize)
      rotate(this.angle)
    }
    pop()
  }
}

const circles = new Circles().render() // creates and renders Circle object