weekly (supply) {
    var price = this.pay(supply)
    this.collectedSupply += supply
    return price
  }
/**
   * Done every week. Saves the supply and gives money of it
   *
   * @param {*} supply
   */
Done every week. Saves the supply and gives money of it
@param {*} supply
Done every week . Saves the supply and gives money of it @param { * } supply
weekly (supply) {
    var price = this.pay(supply)
    this.collectedSupply += supply
    return price
  }
weekly ( supply ) { var price = this . pay ( supply ) this . collectedSupply += supply return price }
Done every week.
Done every week .