跟随Unity教程时遇3个C#代码错误，寻求解决方法

错误信息 #

• Assets/Scripts/Controllers/PlayerController.cs(13,27): error CS0115: 'PlayerController.RetrieveMoveInput()': no suitable method found to override
• Assets/Scripts/Controllers/PlayerController.cs(8,26): error CS0115: 'PlayerController.RetrieveJumpInput()': no suitable method found to override
• Assets/Scripts/Controllers/PlayerController.cs(6,33): error CS0246: The type or namespace name 'InputController' could not be found (are you missing a using directive or an assembly reference?)

问题分析与修复 #

三个错误的核心原因是基类命名不匹配：

1. 你定义的基类脚本类名为Input，但PlayerController试图继承InputController，导致系统找不到这个类（触发CS0246错误）。
2. 由于继承的目标类不存在，override标记的方法找不到对应的抽象方法，进而触发CS0115错误。

另外，基类命名为Input会和Unity自带的UnityEngine.Input类冲突，这也是需要修正的潜在问题。

修改后的基类脚本（InputController.cs） #

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public abstract class InputController : ScriptableObject
{
    public abstract float RetrieveMoveInput();
    public abstract bool RetrieveJumpInput();
}

修改后的PlayerController脚本 #

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[CreateAssetMenu(fileName = "PlayerController", menuName = "InputController/PlayerController")]
public class PlayerController : InputController
{
    public override bool RetrieveJumpInput()
    {
        // 加UnityEngine前缀避免命名冲突
        return UnityEngine.Input.GetButtonDown("Jump");
    }

    public override float RetrieveMoveInput()
    {
        return UnityEngine.Input.GetAxisRaw("Horizontal");
    }
}

完成以上修改后，所有错误应该会被解决。

内容的提问来源于stack exchange，提问作者TowerOfGray11