createCanvas(400, 400);

}

​

function draw() {

  background(220);

}

​

​

class Pattern {  

  constructor() {

    this.stages = [];

  }

  addStage(stage) {

    this.stages.push(stage);

  }

}

​

class PatternStage {

  // duration: 

  constructor(duration, angle, spread, damage) {

    this.duration = duration;

    this.angle = angle;

    this.spread = spread;

    this.damage = damage;

  }

}