C# 击败所有目标

我有这个脚本，但不起作用，当我杀死一个敌人时，门就会打开，我需要知道当我杀死所有敌人时，门有多活跃。我需要消灭所有的敌人来打开这扇门，但这并不好，如果我杀死一个敌人，这扇门就会无缘无故地打开

public class DoorScript : MonoBehaviour
{     
    private GameObject[] enemyToKill;
 
    public Transform pos1, pos2;
    public float speed;
    public Transform startPos;
 
    Vector3 nextPos;
 
    public bool EnemyDead = false;
 
    // Start is called before the first frame update
    void Start()
    {
        enemyToKill = GameObject.FindGameObjectsWithTag("EnemyR1");
        nextPos = startPos.position;
    }
 
    // Update is called once per frame
    void Update()
    {
        foreach (GameObject enemy in enemyToKill)
        {
            if (enemy == null)
            {                     
                EnemyDead = true;
                if (transform.position == pos1.position && EnemyDead)
                {
                    nextPos = pos2.position;
                }
 
                transform.position = Vector3.MoveTowards(transform.position, nextPos, speed * Time.deltaTime);
            }
        }
    }
 
    private void OnDrawGizmos()
    {
        Gizmos.DrawLine(pos1.position, pos2.position);
    }
}

如果我假设正确（上面的代码不清楚），那么您已经为所有敌人设置了一些标记“EnemyR1”，现在您需要检查这些敌人是否存在。如果没有敌人，你需要打开门（比如玩家的出口点）

这也取决于你是否立即杀死敌人（并摧毁游戏对象），或者你只是将敌人标记为某物（设置某些属性/设置为非活动/设置不同的标记）

在要执行的代码中：

void Start()
{
    // There you will get ALL objects that have the tag (that was ok before)
    // This function always returns Array. Sometimes empty.
    enemyToKill = GameObject.FindGameObjectsWithTag("EnemyR1");
    nextPos = startPos.position;
}
 
void Update()
{
    // Now it depends how your logic is implemented:
    // If you destroy automatically all objects, array will be empty, check length:
    if (enemyToKill.Length == 0)
    {
        //There are no enemies to be killed, You can open the door
    }

    // Else if objects still exist, you must check if all have the condition.
    // They can be disabled, have some property, etc.. In that case You need to:
    bool allKilled = true;
    foreach (GameObject enemy in enemyToKill)
    {
        if (enemy.active) //update this condition as you need
        {
            allKilled = false; // Set to false, when enemy is not killed
            break;             // and exit the loop
        }
    }
    if (allKilled)
    {
        //There are no enemies to be killed, You can open the door
    }
}

---

你是在为第一个被杀的敌人设定目标

你应该检查是否所有的敌人都不存在。一般情况下，不要将从

UnityEngine.Object

派生的任何内容与

null

进行比较！而是使用隐式

bool

运算符。 然后你可以使用（或）像

using System.Linq;

...

void Update()
{
    // In general use a bool check!
    // A destroyed object reference is not necessarily null
    // This returns true if there is still an existing enemy
    if(!EnemyDead && enemyToKill.Anyy(enemy => enemy)) return;

    // Still keep the flag so the check can be skipped
    // As soon as the flag is already set
    EnemyDead = true;
                          
    if (transform.position == pos1.position)
    {
        nextPos = pos2.position;
    }

    transform.position = Vector3.MoveTowards(transform.position, nextPos, speed * Time.deltaTime);
}

---

根据你的代码，我假设当一个游戏对象变为空时，这意味着该对象已死亡。如果是这种情况，您的代码只检查第一次出现的死对象。您需要更改foreach，以便检查您的所有对象是否为空。我使用您的答案，当敌人被杀死时，门不会移动。当我杀死所有敌人时，您放置if（allkill）的行未激活，当我将bool放入时，我会检查此行，并且始终为false。感谢您的回复，问题解决得很好，非常感谢。