OnCollisionEnter2D的問題-沒有錯誤訊息但沒有結果-有解無憂

第一次在這里發帖，如果有什么不對的地方請見諒。我寫了一大段代碼來檢查附加的物體是否接觸到另一個帶有“危險”標簽的物體。如果是，則浮點“hp”的值將減 1。當我運行我的游戲時沒有錯誤訊息出現，但是當我運行我的游戲并用我的玩家角色觸摸一個標記為“hazard”的物件時，hp 不是影響 - 我知道這一點，因為我成功實作了一個健康欄，當我用標簽觸摸物件時它根本不會改變。

下面是我撰寫的用于檢測碰撞并降低 hp 值的代碼。

void OnCollisionEnter2D(Collision2D col)
    {
        if (col.gameObject.tag =="hazard")
        {
          hp = hp - 1;
        }
    }

玩家角色物件和危險物件都附加了 2D Collider 組件。

根據要求，健康代碼已添加如下：

這段代碼設定了“hp”的初始值，并宣告了我稍后用來表示玩家剩余生命值的游戲物件。

float hp = 10;
   public GameObject phealth1;
   public GameObject phealth2;
   public GameObject phealth3;
   public GameObject phealth4;
   public GameObject phealth5;
   public GameObject phealth6;
   public GameObject phealth7;
   public GameObject phealth8;
   public GameObject phealth9;
   public GameObject phealth10;

此代碼防止“hp”高于或低于最大值和最小值，以及根據“hp”的值更新健康欄。

 void Update()
{
    
    if (hp > 10)
        hp = 10;

    if (hp < 0)
        hp = 0;

    switch (hp) {
        case 10:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(true);
            phealth3.gameObject.SetActive(true);
            phealth4.gameObject.SetActive(true);
            phealth5.gameObject.SetActive(true);
            phealth6.gameObject.SetActive(true);
            phealth7.gameObject.SetActive(true);
            phealth8.gameObject.SetActive(true);
            phealth9.gameObject.SetActive(true);
            phealth10.gameObject.SetActive(true);
            break;
        case 9:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(true);
            phealth3.gameObject.SetActive(true);
            phealth4.gameObject.SetActive(true);
            phealth5.gameObject.SetActive(true);
            phealth6.gameObject.SetActive(true);
            phealth7.gameObject.SetActive(true);
            phealth8.gameObject.SetActive(true);
            phealth9.gameObject.SetActive(true);
            phealth10.gameObject.SetActive(false);
            break;
        case 8:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(true);
            phealth3.gameObject.SetActive(true);
            phealth4.gameObject.SetActive(true);
            phealth5.gameObject.SetActive(true);
            phealth6.gameObject.SetActive(true);
            phealth7.gameObject.SetActive(true);
            phealth8.gameObject.SetActive(true);
            phealth9.gameObject.SetActive(false);
            phealth10.gameObject.SetActive(false);
            break;
        case 7:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(true);
            phealth3.gameObject.SetActive(true);
            phealth4.gameObject.SetActive(true);
            phealth5.gameObject.SetActive(true);
            phealth6.gameObject.SetActive(true);
            phealth7.gameObject.SetActive(true);
            phealth8.gameObject.SetActive(false);
            phealth9.gameObject.SetActive(false);
            phealth10.gameObject.SetActive(false);
            break;
        case 6:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(true);
            phealth3.gameObject.SetActive(true);
            phealth4.gameObject.SetActive(true);
            phealth5.gameObject.SetActive(true);
            phealth6.gameObject.SetActive(true);
            phealth7.gameObject.SetActive(false);
            phealth8.gameObject.SetActive(false);
            phealth9.gameObject.SetActive(false);
            phealth10.gameObject.SetActive(false);
            break;
        case 5:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(true);
            phealth3.gameObject.SetActive(true);
            phealth4.gameObject.SetActive(true);
            phealth5.gameObject.SetActive(true);
            phealth6.gameObject.SetActive(false);
            phealth7.gameObject.SetActive(false);
            phealth8.gameObject.SetActive(false);
            phealth9.gameObject.SetActive(false);
            phealth10.gameObject.SetActive(false);
            break;
        case 4:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(true);
            phealth3.gameObject.SetActive(true);
            phealth4.gameObject.SetActive(true);
            phealth5.gameObject.SetActive(false);
            phealth6.gameObject.SetActive(false);
            phealth7.gameObject.SetActive(false);
            phealth8.gameObject.SetActive(false);
            phealth9.gameObject.SetActive(false);
            phealth10.gameObject.SetActive(false);
            break;
        case 3:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(true);
            phealth3.gameObject.SetActive(true);
            phealth4.gameObject.SetActive(false);
            phealth5.gameObject.SetActive(false);
            phealth6.gameObject.SetActive(false);
            phealth7.gameObject.SetActive(false);
            phealth8.gameObject.SetActive(false);
            phealth9.gameObject.SetActive(false);
            phealth10.gameObject.SetActive(false);
            break;
        case 2:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(true);
            phealth3.gameObject.SetActive(false);
            phealth4.gameObject.SetActive(false);
            phealth5.gameObject.SetActive(false);
            phealth6.gameObject.SetActive(false);
            phealth7.gameObject.SetActive(false);
            phealth8.gameObject.SetActive(false);
            phealth9.gameObject.SetActive(false);
            phealth10.gameObject.SetActive(false);
            break;
        case 1:
            phealth1.gameObject.SetActive(true);
            phealth2.gameObject.SetActive(false);
            phealth3.gameObject.SetActive(false);
            phealth4.gameObject.SetActive(false);
            phealth5.gameObject.SetActive(false);
            phealth6.gameObject.SetActive(false);
            phealth7.gameObject.SetActive(false);
            phealth8.gameObject.SetActive(false);
            phealth9.gameObject.SetActive(false);
            phealth10.gameObject.SetActive(false);
            break;
        case 0:
            phealth1.gameObject.SetActive(false);
            phealth2.gameObject.SetActive(false);
            phealth3.gameObject.SetActive(false);
            phealth4.gameObject.SetActive(false);
            phealth5.gameObject.SetActive(false);
            phealth6.gameObject.SetActive(false);
            phealth7.gameObject.SetActive(false);
            phealth8.gameObject.SetActive(false);
            phealth9.gameObject.SetActive(false);
            phealth10.gameObject.SetActive(false);
            break;
    }

}

下面是整個腳本。

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

public class Health : MonoBehaviour
{
   float hp = 10;
   public GameObject phealth1;
   public GameObject phealth2;
   public GameObject phealth3;
   public GameObject phealth4;
   public GameObject phealth5;
   public GameObject phealth6;
   public GameObject phealth7;
   public GameObject phealth8;
   public GameObject phealth9;
   public GameObject phealth10;
   
    // Start is called before the first frame update
    void Start()
    {
        
    }

    void dmg(int x)
    {
        hp = hp - x;
    }

    void OnCollisionEnter2D(Collision2D col)
    {
        if (col.gameObject.tag == "hazard")
            dmg(1);
            Debug.Log("Contact made");
            Debug.Log(hp);
    }

    // Update is called once per frame
    void Update()
    {

        if (hp > 10)
            hp = 10;

        if (hp < 0)
            hp = 0;

        switch (hp) {
            case 10:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(true);
                phealth3.gameObject.SetActive(true);
                phealth4.gameObject.SetActive(true);
                phealth5.gameObject.SetActive(true);
                phealth6.gameObject.SetActive(true);
                phealth7.gameObject.SetActive(true);
                phealth8.gameObject.SetActive(true);
                phealth9.gameObject.SetActive(true);
                phealth10.gameObject.SetActive(true);
                break;
            case 9:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(true);
                phealth3.gameObject.SetActive(true);
                phealth4.gameObject.SetActive(true);
                phealth5.gameObject.SetActive(true);
                phealth6.gameObject.SetActive(true);
                phealth7.gameObject.SetActive(true);
                phealth8.gameObject.SetActive(true);
                phealth9.gameObject.SetActive(true);
                phealth10.gameObject.SetActive(false);
                break;
            case 8:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(true);
                phealth3.gameObject.SetActive(true);
                phealth4.gameObject.SetActive(true);
                phealth5.gameObject.SetActive(true);
                phealth6.gameObject.SetActive(true);
                phealth7.gameObject.SetActive(true);
                phealth8.gameObject.SetActive(true);
                phealth9.gameObject.SetActive(false);
                phealth10.gameObject.SetActive(false);
                break;
            case 7:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(true);
                phealth3.gameObject.SetActive(true);
                phealth4.gameObject.SetActive(true);
                phealth5.gameObject.SetActive(true);
                phealth6.gameObject.SetActive(true);
                phealth7.gameObject.SetActive(true);
                phealth8.gameObject.SetActive(false);
                phealth9.gameObject.SetActive(false);
                phealth10.gameObject.SetActive(false);
                break;
            case 6:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(true);
                phealth3.gameObject.SetActive(true);
                phealth4.gameObject.SetActive(true);
                phealth5.gameObject.SetActive(true);
                phealth6.gameObject.SetActive(true);
                phealth7.gameObject.SetActive(false);
                phealth8.gameObject.SetActive(false);
                phealth9.gameObject.SetActive(false);
                phealth10.gameObject.SetActive(false);
                break;
            case 5:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(true);
                phealth3.gameObject.SetActive(true);
                phealth4.gameObject.SetActive(true);
                phealth5.gameObject.SetActive(true);
                phealth6.gameObject.SetActive(false);
                phealth7.gameObject.SetActive(false);
                phealth8.gameObject.SetActive(false);
                phealth9.gameObject.SetActive(false);
                phealth10.gameObject.SetActive(false);
                break;
            case 4:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(true);
                phealth3.gameObject.SetActive(true);
                phealth4.gameObject.SetActive(true);
                phealth5.gameObject.SetActive(false);
                phealth6.gameObject.SetActive(false);
                phealth7.gameObject.SetActive(false);
                phealth8.gameObject.SetActive(false);
                phealth9.gameObject.SetActive(false);
                phealth10.gameObject.SetActive(false);
                break;
            case 3:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(true);
                phealth3.gameObject.SetActive(true);
                phealth4.gameObject.SetActive(false);
                phealth5.gameObject.SetActive(false);
                phealth6.gameObject.SetActive(false);
                phealth7.gameObject.SetActive(false);
                phealth8.gameObject.SetActive(false);
                phealth9.gameObject.SetActive(false);
                phealth10.gameObject.SetActive(false);
                break;
            case 2:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(true);
                phealth3.gameObject.SetActive(false);
                phealth4.gameObject.SetActive(false);
                phealth5.gameObject.SetActive(false);
                phealth6.gameObject.SetActive(false);
                phealth7.gameObject.SetActive(false);
                phealth8.gameObject.SetActive(false);
                phealth9.gameObject.SetActive(false);
                phealth10.gameObject.SetActive(false);
                break;
            case 1:
                phealth1.gameObject.SetActive(true);
                phealth2.gameObject.SetActive(false);
                phealth3.gameObject.SetActive(false);
                phealth4.gameObject.SetActive(false);
                phealth5.gameObject.SetActive(false);
                phealth6.gameObject.SetActive(false);
                phealth7.gameObject.SetActive(false);
                phealth8.gameObject.SetActive(false);
                phealth9.gameObject.SetActive(false);
                phealth10.gameObject.SetActive(false);
                break;
            case 0:
                phealth1.gameObject.SetActive(false);
                phealth2.gameObject.SetActive(false);
                phealth3.gameObject.SetActive(false);
                phealth4.gameObject.SetActive(false);
                phealth5.gameObject.SetActive(false);
                phealth6.gameObject.SetActive(false);
                phealth7.gameObject.SetActive(false);
                phealth8.gameObject.SetActive(false);
                phealth9.gameObject.SetActive(false);
                phealth10.gameObject.SetActive(false);
                break;
        }

    }
    
    
}

uj5u.com熱心網友回復：

我懷疑現場有問題。

檢查場景中是否只有一個此腳本。

在Hierarchy Tab搜索欄中輸入t:MyComponentName。使用相同 phealth 物件的多個副本可能會導致您遇到的問題。

仔細檢查檢查phealth{n}器中分配的游戲物件。

這是您的代碼的清理版本。測驗并確認作業。

using UnityEngine;

public class Health : MonoBehaviour
{
    public int health;
    public int maxHealth;
    public GameObject[] healthObjs;

    private void OnCollisionEnter2D(Collision2D collision)
    {
        if (collision.gameObject.CompareTag("hazard"))
        {
            AddHealth(-1);
        }
    }

    private void AddHealth(int amount)
    {
        health = Mathf.Max(0, Mathf.Min(maxHealth, health   amount));

        UpdateDisplayedHealth();
    }
    private void UpdateDisplayedHealth()
    {
        for (int i = 0; i < healthObjs.Length; i  )
        {
            healthObjs[i].SetActive(i   1 <= health);
        }
    }
}

洗掉了開關盒，用 for 回圈替換它，這使得代碼更加緊湊。
更新了傷害函式以處理最小/最大生命值并更新顯示的生命值。
完全洗掉更新。

轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/461611.html

標籤：C＃ unity3d 碰撞

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