我在脚本中的生成不起作用，我不确定为什么会这样

Question

我在脚本中的生成应该如何工作是有一个大立方体（250 x 250 x 250）并且它有一个启用了触发器的盒子碰撞器。每个生物都有一个值，即它们的 health/10。我的目标是让每个区域的值都为 100，如果低于该值，它将随机生成一个新的生物，直到它回到 100 值。我在实例化 mob 的那一行出现错误，它给出了一个空引用异常错误。我已经在 instpector 中分配了敌方游戏对象。我有意不在蜘蛛中产卵，因为我正在为它们做一些特别的事情。如果有任何代码你只需要评论，我应该可以给你。谢谢

编辑：在我将 Alk 添加到 Enemies 列表的行开始时，我还遇到了空引用异常错误

编辑：在这个场景中没有其他物体会干扰生成，因为我一个一个地禁用了所有其他物体并且我没有得到任何错误。敌人基础脚本中与此相关的所有值都已分配给它们。我希望这有助于缩小范围

这是我的代码：

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

public class SpawnInScript : MonoBehaviour
{
    public class EnemyWorth
    {
        public float health;
        public int weight;
        public GameObject self;

        public EnemyWorth(float health, int weight, GameObject self)
        {
            this.health = health;
            this.weight = weight;
            this.self = self;            
        }
    }

    public GameObject Alk;
    public GameObject GoblinSpawn;
    public GameObject Goblin;
    public GameObject Cobra;
    public GameObject Spider;
    public GameObject SpiderMini;

    [SerializeField]
    public EnemyWorth[] Enemies;

    public int areaWorth;

    private int rand;

    private float randX;
    private float randY;
    private float randZ;

    // Start is called before the first frame update
    void Start()
    {       
        Enemies[0] = new EnemyWorth (Alk.GetComponent<EnemyBaseScript>().health, Alk.GetComponent<EnemyBaseScript>().worth, Alk);
        Enemies[1] = new EnemyWorth (GoblinSpawn.GetComponent<EnemyBaseScript>().health, GoblinSpawn.GetComponent<EnemyBaseScript>().worth, GoblinSpawn);
        Enemies[2] = new EnemyWorth (Goblin.GetComponent<EnemyBaseScript>().health, Goblin.GetComponent<EnemyBaseScript>().worth, Goblin);
        Enemies[3] = new EnemyWorth (Cobra.GetComponent<EnemyBaseScript>().health, Cobra.GetComponent<EnemyBaseScript>().worth, Cobra);
        Enemies[4] = new EnemyWorth (Spider.GetComponent<EnemyBaseScript>().health, Spider.GetComponent<EnemyBaseScript>().worth, Spider);
        Enemies[5] = new EnemyWorth (SpiderMini.GetComponent<EnemyBaseScript>().health, SpiderMini.GetComponent<EnemyBaseScript>().worth, SpiderMini);
    }

    // Update is called once per frame
    void Update()
    {
        if (areaWorth > 100)
        {
            return;
        }
        if (areaWorth < 100)
        {
            rand = Random.Range(0, 3);
            randX = Random.Range(-125, 125);
            randY = Random.Range(-125, 125);
            randZ = Random.Range(-125, 125);

            Instantiate(Enemies[rand].self, new Vector3(this.transform.position.x -randX, this.transform.position.y - randY, this.transform.position.z - randZ), Quaternion.identity); // I am getting an error on this line
        }
    }


    private void OnTriggerEnter(Collider col)
    {
        if (col.gameObject == Enemies[0].self)
        {
            areaWorth += Enemies[0].weight;
        }
        else if (col.gameObject == Enemies[1].self)
        {
            areaWorth += Enemies[1].weight;
        }
        else if (col.gameObject == Enemies[2].self)
        {
            areaWorth += Enemies[2].weight;
        }
        else if (col.gameObject == Enemies[3].self)
        {
            areaWorth += Enemies[3].weight;
        }
        else if (col.gameObject == Enemies[4].self)
        {
            areaWorth += Enemies[4].weight;
        }
        else if (col.gameObject == Enemies[5].self)
        {
            areaWorth += Enemies[5].weight;
        }
    }

    private void OnTriggerExit(Collider col)
    {
        if (col.gameObject == Enemies[0].self)
        {
            areaWorth += Enemies[0].weight;
        }
        else if (col.gameObject == Enemies[1].self)
        {
            areaWorth += Enemies[1].weight;
        }
        else if (col.gameObject == Enemies[2].self)
        {
            areaWorth += Enemies[2].weight;
        }
        else if (col.gameObject == Enemies[3].self)
        {
            areaWorth += Enemies[3].weight;
        }
        else if (col.gameObject == Enemies[4].self)
        {
            areaWorth += Enemies[4].weight;
        }
        else if (col.gameObject == Enemies[5].self)
        {
            areaWorth += Enemies[5].weight;
        }
    }
}

Answer 1

我意识到当敌人在该区域中生成时，该值不会回升，因为当它们生成时没有任何东西增加该值。我还进一步优化了代码。

我可以通过这样做来修复它：

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

public class SpawnInScript : MonoBehaviour
{
    [System.Serializable]
    public class EnemyWorth
    {        
        public int weight;
        public GameObject self;

        public EnemyWorth(int weight, GameObject self)
        {            
            this.weight = weight;
            this.self = self;            
        }
    }

    public GameObject[] monsters;

    public EnemyWorth[] enemies = new EnemyWorth[6];

    public int maxAreaWorth;

    public float dimX;
    public float dimY;
    public float dimZ;


    [SerializeField]
    private int areaWorth;

    private int rand;

    private float randX;
    private float randY;
    private float randZ;

    // Start is called before the first frame update
    void Start()
    {
        for (int i = 0; i < monsters.Length; i++)
        {
            enemies[i] = new EnemyWorth(monsters[i].GetComponent<EnemyBaseScript>().worth, monsters[i]);
        }
    }

    // Update is called once per frame
    void Update()
    {
        if (areaWorth < maxAreaWorth)
        {
            rand = Random.Range(0, 3);
            randX = Random.Range(-dimX, dimX);
            randY = Random.Range(-dimY, dimY);
            randZ = Random.Range(-dimZ, dimZ);

            Instantiate(enemies[rand].self, new Vector3(this.transform.position.x -randX, this.transform.position.y - randY, this.transform.position.z - randZ), Quaternion.identity);
            areaWorth += enemies[rand].weight;
        }
    }


    private void OnTriggerEnter(Collider col)
    {
        if (col.gameObject == enemies[0].self)
        {
            areaWorth += enemies[0].weight;
        }
        else if (col.gameObject == enemies[1].self)
        {
            areaWorth += enemies[1].weight;
        }
        else if (col.gameObject == enemies[2].self)
        {
            areaWorth += enemies[2].weight;
        }
        else if (col.gameObject == enemies[3].self)
        {
            areaWorth += enemies[3].weight;
        }
        else if (col.gameObject == enemies[4].self)
        {
            areaWorth += enemies[4].weight;
        }
        else if (col.gameObject == enemies[5].self)
        {
            areaWorth += enemies[5].weight;
        }
    }

    private void OnTriggerExit(Collider col)
    {
        if (col.gameObject == enemies[0].self)
        {
            areaWorth += enemies[0].weight;
        }
        else if (col.gameObject == enemies[1].self)
        {
            areaWorth += enemies[1].weight;
        }
        else if (col.gameObject == enemies[2].self)
        {
            areaWorth += enemies[2].weight;
        }
        else if (col.gameObject == enemies[3].self)
        {
            areaWorth += enemies[3].weight;
        }
        else if (col.gameObject == enemies[4].self)
        {
            areaWorth += enemies[4].weight;
        }
        else if (col.gameObject == enemies[5].self)
        {
            areaWorth += enemies[5].weight;
        }
    }
}

我在脚本中的生成不起作用，我不确定为什么会这样

My spawning in script is not working and I am unsure as to why this is happening

c#

nullreferenceexception

unity3d