方法由于其保护级别而无法访问

Question

我目前正在 Unity 2018 中进行开发，并制作了一个脚本来降低角色与敌人碰撞时的生命值：

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

public class HealthManager : MonoBehaviour
{

    public static int currentHealth;
    public Slider healthBar;

    void Awake()
    {
        healthBar = GetComponent<Slider> ();
        currentHealth = 100;
    }

    void ReduceHealth()
    {
        currentHealth = currentHealth - 1;
        healthBar.value = currentHealth;
    }

    void Update()
    {
        healthBar.value = currentHealth;
    }
}

当我尝试在敌人的脚本文件中使用上述方法时，出现错误，指出“Assets/Custom Scripts/BeetleScript.cs(46,28): error CS0122: `HealthManager.ReduceHealth()' 由于其保护而无法访问等级”

以下是敌人脚本启动正在使用的变量并调用方法：

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

public class BeetleScript : MonoBehaviour
{

Animator animator;
public GameObject cucumberToDestroy;
public bool cherryHit = false;
public float smoothTime = 3.0f;
public Vector3 smoothVelocity = Vector3.zero;
public PointsManager _ptsManager;
public HealthManager _healthManager;

void Start()
{
    animator = GetComponent<Animator>();
}

void Update()
{
    if (cherryHit)
    {

        var cm = GameObject.Find("CucumberMan");
        var tf = cm.transform;
        this.gameObject.transform.LookAt(tf);

        // move towards Cucumber Man
        animator.Play("Standing Run");

        transform.position = Vector3.SmoothDamp(transform.position, tf.position,
            ref smoothVelocity, smoothTime);
    }
}

// Collision Detection Test
void OnCollisionEnter(Collision col)
{
    if (col.gameObject.CompareTag("Player"))
    {

        _healthManager = GameObject.Find
        ("Health_Slider").GetComponent<HealthManager>();
        _healthManager.ReduceHealth();

        if (!cherryHit)
        {

            BeetlePatrol.isAttacking = true;

            var cm = GameObject.Find("CucumberMan");
            var tf = cm.transform;
            this.gameObject.transform.LookAt(tf);

            animator.Play("Attacking on Ground");
            StartCoroutine("DestroySelfOnGround");
        }
        else
        {
            animator.Play("Standing Attack");
            StartCoroutine("DestroySelfStanding");
        }
    }  

 }
}

任何解决此问题的帮助将不胜感激。

Answer 1

你的方法是private. 你必须写public在你想从类外部访问的方法前面。

public void ReduceHealth()
{
...
}