newInstances.js

const characters = []

const Warrior = function createWarrior(name) {
  this.name = name
  this.hp = 100
  this.mp = 100
  this.defence = 60
  
  return {
    // Slash the enemy, decreasing their hp down by 35
    slash(target) {
      target.hp -= 35
      return target
    },
    // Increases the warrior's defence by 100 for 40 seconds.
    // Each second will decrement their defence by 1 as the time runs out.
    battleCry() {
      this.defence += 100
      this.battleCryInterval = setInterval(() => {
        this.defence -= 1
      }, 1000)
      this.battleCryTimeout = setTimeout(() => {
        this.defence = 60
      }, 40000)
    },
  }
}