如何为预制件创建枚举以使用精灵图像实例化

Question

基本上我创建了一个预制件，“badGuy”，共有三种类型。每个都有自己的精灵图像。所以我在附加到我的 badGuy 预制件的脚本中创建了以下枚举：

public enum BadGuyType {
  green,
  blue,
  red
}

自从我没有枚举以来，我一直在为我的预制件使用一张图片。 badGuy 游戏对象有一个 public 属性让我通过检查器添加它并实例化它多次，如下所示：

public GameObject badGuy; //I set this in the inspector
void Start () {

badGuys= new List<GameObject> ();

int numberOfBadGuys = 6;
Camera camera = GameObject.FindGameObjectWithTag ("MainCamera").GetComponent<Camera> ();

for (int i = 1; i < numberOfBadGuys + 1; i++) {
    GameObject badGuyObject =  (GameObject)Instantiate(badGuy, new Vector3(Screen.width*i/2, Screen.height*i/6, camera.nearClipPlane ), Quaternion.identity );
    badGuys.Add(badGuyObject);
}

如何在实例化我的 badGuy 游戏对象时为我的 BadGuyType 枚举和 select 设置图像（最好以编程方式）？

Answer 1

如果您希望每个 badGuy 都有自己的属性，那么您需要为 badguys 创建一个通用 class 并将所有变量放入其中。创建一个名为 BadGuysManager 的脚本，然后在其中实现所有坏人的操作，或者从下面复制一个。

函数签名：

void createBadGuy(GameObject badGuyPrefab, BadGuyType badGuyType, Vector3 badGuyPosition)
void setBadGuyType(BadGuyType badGuyType)
BadGuyType getBadGuyType()
void killBadGuy()
GameObject getBadGuyGameObject()

在您的 test.cs 脚本中，您可以添加带有列表的 BadGuysManager 脚本。

public class test : MonoBehaviour
{
    //Attch the gameObject bad guy here
    public GameObject badGuyPrefab;

    List<BadGuysManager> badGuys = new List<BadGuysManager>();

    // Use this for initialization
    void Start()
    {
        /////////////////////////////////////CREATE 3 bad guys with different colors

        //Bad Guy 1, Green Color
        badGuys.Add(gameObject.AddComponent<BadGuysManager>());
        badGuys[0].createBadGuy(badGuyPrefab, BadGuyType.green, Vector3.zero);

        //Bad Guy 2, Blue Color
        badGuys.Add(gameObject.AddComponent<BadGuysManager>());
        badGuys[1].createBadGuy(badGuyPrefab, BadGuyType.blue, Vector3.zero);

        //Bad Guy 3, Red Color
        badGuys.Add(gameObject.AddComponent<BadGuysManager>());
        badGuys[2].createBadGuy(badGuyPrefab, BadGuyType.red, Vector3.zero);

        /////////////////////////////////////CHANGE bad guy type later on
        //badGuys[0].setBadGuyType(BadGuyType.green);

        /////////////////////////////////////READ bad guy type 
        //BadGuyType badGuyType = badGuys[0].getBadGuyType();

        /////////////////////////////////////Get bad guy 
        //GameObject badGuy = badGuys[0].getBadGuyGameObject();

        /////////////////////////////////////KILL bad guy type 
        //badGuys[0].killBadGuy();

    }
}

下面的代码应该在您的 BadGuysManager.cs 脚本中。这应该让你开始。您可以轻松地扩展或添加更多功能到 BadGuysManager class.

public class BadGuysManager : MonoBehaviour
{
    private GameObject badGuy; //I set this in the inspector
    private BadGuyType playerGuyType = BadGuyType.NONE;

    public void setBadGuyType(BadGuyType badGuyType)
    {
        playerGuyType = badGuyType;

        if (badGuy == null)
        {
            Debug.Log("Failed to set color because Bad Guy Prefab is null! Call createBadGuy function first");
            return; //exit
        }
        if (badGuyType == BadGuyType.green)
        {
            badGuy.GetComponent<MeshRenderer>().material.color = Color.green;
        }
        else if (badGuyType == BadGuyType.blue)
        {

            badGuy.GetComponent<MeshRenderer>().material.color = Color.blue;
        }
        if (badGuyType == BadGuyType.red)
        {

            badGuy.GetComponent<MeshRenderer>().material.color = Color.red;
        }
    }

    public BadGuyType getBadGuyType()
    {
        return playerGuyType;
    }


    public void createBadGuy(GameObject badGuyPrefab, BadGuyType badGuyType, Vector3 badGuyPosition)
    {
        if (badGuyPrefab == null)
        {
            Debug.Log("Bad Guy Prefab is null!");
            return; //exit
        }

        badGuy = (GameObject)Instantiate(badGuyPrefab, badGuyPosition, Quaternion.identity);
        setBadGuyType(badGuyType);
    }

    public void killBadGuy()
    {
        Destroy(badGuy);
        Destroy(this);
    }

    public GameObject getBadGuyGameObject()
    {
        return badGuy;
    }
}

public enum BadGuyType
{
    NONE,
    green,
    blue,
    red
}

如何为预制件创建枚举以使用精灵图像实例化

how to create an enum for a prefab to be instantiated with an image for sprite

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