constructor() {

    this.particals = [];

  }

  addPartical(x,y) {

    this.particals.push(new Partical(x,y));

  }

  updateParticals() {

    for(let i = 0; i < this.particals.length; i++) {

      this.particals[i].update();

      if(this.particals[i].lifetime % 20 == 0) {

        this.explode(i);

      }

      if(this.particals.length > 68) {

        this.particals.shift();

      }

    }

    print(this.particals.length);

  }

  explode(idx) {

    for(let i = 0; i < 5; i++) {

     this.particals.splice(idx, 0, new EPartical(this.particals[idx].pos.x + random(-50, 50), this.particals[idx].pos.x + random(-30, -50))); 

    }

  }

  showParticals() {

    for(let partical of this.particals) {

      partical.show();

    }

  }

}