尝试类之间算术时出现 Stackoverflow

Question

我有一个简单的类，其中包含游戏的基本技能属性。每个玩家都有这个技能类别。我希望能够进行基本算术，例如playerSkills =playerSkills + 2，它会遍历类中的所有内容并将 2 添加到其中，或者我可能想将两个类添加在一起，例如playerSkills3 =playerSkills2 +playerSkills1。

我尝试过使用重载运算符，但在调用它们时出现堆栈溢出？

如有任何想法，我们将不胜感激。

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine.UI;
using UnityEngine.Events;
using System;

[Serializable]
public class PlayerSkillsClass
{

    // Technical
    public float speed;
    public float agility;
    public float jump;
    public float strength;

    public static PlayerSkillsClass operator *(PlayerSkillsClass multiplyThis, PlayerSkillsClass withThis)
    {
        PlayerSkillsClass result = multiplyThis * withThis; //...multiply the 2 Coords
        return result;
    }

    public static PlayerSkillsClass operator *(PlayerSkillsClass multiplyThis, float withThis)
    {
        PlayerSkillsClass result = multiplyThis * withThis; //...multiply the Coord with the float
        return result;
    }
    public static PlayerSkillsClass operator +(PlayerSkillsClass addThis, PlayerSkillsClass withThis)
    {
        PlayerSkillsClass result = addThis + withThis; //...multiply the 2 Coords
        return result;
    }

    public static PlayerSkillsClass operator +(PlayerSkillsClass addThis, float withThis)
    {
        PlayerSkillsClass result = addThis + withThis; //...multiply the Coord with the float
        return result;
    }

}

我收到此 StackOverflow 错误，该错误对于我要添加在一起的类中的每个元素都会重复：

StackOverflowException：请求的操作导致堆栈溢出。 PlayerSkillsClass.op_Addition (PlayerSkillsClass addThis, System.Single withThis) <0x17a6a1af0 + 0x00004> in

请注意，这个课程将有数十种技能，随着时间的推移，我将添加和删除技能，所以我不想编写手动函数来对每项技能进行 1 1 的添加/乘法/减去等（我以前有过）

Answer 1

查看

+

运算符。您将

A + B

定义为 (

return A + B

) - 但

A + B

仅使用相同的运算符，导致无限递归并最终导致堆栈溢出。

我怀疑你想返回一个新的

PlayerSkillsClass

对象，将

withThis

的值添加到每个属性：

public static PlayerSkillsClass operator +(PlayerSkillsClass addThis, float withThis)
{
    return new PlayerSkillsClass {
        speed    =  addThis.speed    + withThis,
        agility  =  addThis.agility  + withThis,
        strength =  addThis.strength + withThis,
        strength =  addThis.strength + withThis
    }
}