Question

我收到错误NullReferenceException：对象引用未设置为对象的实例 ThirdPersonCamera.Update（）（在Assets / scripts / ThirdPersonCamera.cs：24）

我的代码：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Runtime.InteropServices;
using UnityEngine.SocialPlatforms;
using UnityEngine.UI;
using UnityStandardAssets.Utility;

public class ThirdPersonCamera : MonoBehaviour {

    [SerializeField]Vector3 cameraOffset;
    [SerializeField]float damping;

    Transform cameraLookTarget;
    Player localPlayer;

    void Awake () {
        GameManger.Instance.OnLocalPlayerJoined += HandleOnLocalPlayerJoined;
    } 

    void HandleOnLocalPlayerJoined (Player player) {
        localPlayer = player;
        cameraLookTarget = localPlayer.transform.Find("cameraLookTarget");

        if (cameraLookTarget == null) {
            cameraLookTarget = localPlayer.transform;
        }
    }


    // Update is called once per frame
    void Update () {
        Vector3 targetPosition = cameraLookTarget.position + localPlayer.transform.forward * cameraOffset.z +
                localPlayer.transform.up * cameraOffset.y +
                localPlayer.transform.right * cameraOffset.x;

        transform.position = Vector3.Lerp(transform.position, targetPosition, damping * Time.deltaTime);
    }
}

我尝试过更改脚本执行顺序，但没有任何作用。我不知道出了什么问题。

Answer 1

确保在脚本中为GamePlayer变量分配了GameObject。此对象在您的层次结构中查找名为＆＃39; cameraLookTarget＆＃39;没有引号。资本化很重要。

我建议在Awake（）方法中查找LocalPlayer对象，如果它为null，则使用Debug.Log（＆＃34;没有指定本地播放器＆＃34;）提醒自己这实际上没有被分配。

Unity 5第三人称脚本错误

1 个答案: