构造函数不返回方法

Question

我一直在获取catchPhrase不是函数。我试图弄清楚为什么它不记录日志。当我使用代码中包含的其他方法时，它可以工作，但是此特定方法不起作用。

function Humanoid(humanoidAtts) {
  GameObject.call(this, humanoidAtts);
  CharacterStats.call(this, humanoidAtts);
  this.faction = humanoidAtts.faction;
  this.weapons = humanoidAtts.weapons;
  this.language = humanoidAtts.language;
}

Humanoid.prototype = Object.create(CharacterStats.prototype)

Humanoid.prototype.greet = function(){
  return `${this.name} offers a greeting in ${this.language}`
}

 function Hero(heroAtts) {
   Humanoid.call(this, heroAtts);
 }

 Hero.prototype = Object.create(GameObject.prototype);
 Hero.prototype = Object.create(CharacterStats.prototype);
 Hero.prototype = Object.create(Humanoid.prototype);

 Hero.prototype.catchPhrase = function(){
  return `${this.name} says, look you got blood on my dress`
}

英雄的定义进一步向下。

const hero =  new Humanoid ({
  createdAt: new Date(),
  dimensions: {
    length: 3,
    width: 2,
    height: 5,
  },
  hp: 20,
  name: 'Bouncing Betty',
  faction: 'Tot Land',
  weapons: [
    'Parasol',
    'Tessen',
  ],
  language: 'Tabaxi',
});

console.log(hero.catchPhrase());