扩展Phaser.js类(extending Phaser.js classes)

 我正在使用Phaser框架，我想创建一个新的类来保存phaser中sprite类的所有属性，所以我尝试这样做 
 
var mario = function(){

    Phaser.Sprite.call(this); // inherit from sprite
};
 
 但出现错误“Uncaught TypeError：undefined不是函数” 
 
 然后我尝试了 
 
var mario = function(){

   this.anything = "";

};

mario.prototype = new Phaser.Sprite();
 
 确定它有效，但它调用了相位器构造函数，我不想创建精灵，直到我做var heroObj = new mario(); 
 
 我该怎么办 ？ 

im working with Phaser framework , i want to create new class that hold all properties from sprite class in phaser so i tried doing this
 
var mario = function(){

    Phaser.Sprite.call(this); // inherit from sprite
};
 
but there was an error "Uncaught TypeError: undefined is not a function"
 
then i tried 
 
var mario = function(){

   this.anything = "";

};

mario.prototype = new Phaser.Sprite();
 
OK it works but it called phaser constructor and i don't want to create sprite until i do var heroObj = new mario();
 
what should i do ?

原文：https://stackoverflow.com/questions/29231281