如果游戏正在运行，如何根据游戏状态初始化列表?

Question

我有这个单行为脚本：

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using UnityEditor;
using UnityEngine;
public class CompareObjects : MonoBehaviour
{
public GameObject mainGame;
public string comparisonObjects;
public float waitTime;
public List<GameObject> allobjects = new List<GameObject>();
public bool startComparingAtStart = false;
private Coroutine comparer;
private void Start()
{
if (Application.isPlaying == false)
{
allobjects = new List<GameObject>();
}
else
{
allobjects = FindObjectsOfType<GameObject>().ToList();
}
if (startComparingAtStart == true)
{
StartComparing();
}
}
public void StartComparing()
{
mainGame.SetActive(false);
if (comparer == null)
{
comparer = StartCoroutine(Compare());
}
}
public void StopComparing()
{
if (comparer != null)
{
comparisonObjects = "";
allobjects = new List<GameObject>();
StopCoroutine(comparer);
mainGame.SetActive(true);
comparer = null;
}
}
IEnumerator Compare()
{
while (true)
{
foreach (GameObject go in allobjects)
{
if (go.name != "Game Manager")
{
comparisonObjects = go.name + " >>>>> " + go.scene.name + " >>>>> is active object";
}
yield return new WaitForSeconds(waitTime);
}
}
}
}

和检查器中按钮的编辑器脚本：

using UnityEngine;
using System.Collections;
using UnityEditor;
[CustomEditor(typeof(CompareObjects))]
public class CompareObjectsButton : Editor
{
private CompareObjects compareObjects;
private void OnEnable()
{
compareObjects = (CompareObjects)target;
}
public override void OnInspectorGUI()
{
DrawDefaultInspector();
CompareObjects myTarget = (CompareObjects)target;
if (GUILayout.Button("Compare Objects"))
{
myTarget.StartComparing();
}
if (GUILayout.Button("Stop"))
{
myTarget.StopComparing();
}
}
}

这部分不起作用：

if (Application.isPlaying == false)
{
allobjects = new List<GameObject>();
}
else
{
allobjects = FindObjectsOfType<GameObject>().ToList();
}

运行游戏并单击开始比较对象按钮时，如果我单击停止按钮，它会将列出所有对象重置为长度 0。

但是，如果改为单击"停止"按钮，我只是在游戏中划动，则所有对象列表将为空，但长度将保持在5000多个项目以上。这是项目将是空的，但我希望当游戏不运行时列表长度为 0。

不确定为什么它将列表长度保持在 5000 个项目以上以及如何将其重置为长度 0。

已尝试使用 ：

Application.isPlaying

但它不起作用。

这是我到目前为止尝试过的：

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using UnityEditor;
using UnityEngine;
[ExecuteAlways]
public class CompareObjects : MonoBehaviour
{
public GameObject mainGame;
public string comparisonObjects;
public float waitTime;
public List<GameObject> allobjects = new List<GameObject>();
public bool startComparingAtStart = false;
private Coroutine comparer;
private void Start()
{
if (Application.isPlaying == false)
{
allobjects = new List<GameObject>();
}
else
{
allobjects = FindObjectsOfType<GameObject>().ToList();
}
if (startComparingAtStart == true)
{
StartComparing();
}
}
public void StartComparing()
{
mainGame.SetActive(false);
if (comparer == null)
{
comparer = StartCoroutine(Compare());
}
}
public void StopComparing()
{
if (comparer != null)
{
comparisonObjects = "";
allobjects = new List<GameObject>();
StopCoroutine(comparer);
mainGame.SetActive(true);
comparer = null;
}
}
IEnumerator Compare()
{
while (true)
{
foreach (GameObject go in allobjects)
{
if (go.name != "Game Manager")
{
comparisonObjects = go.name + " >>>>> " + go.scene.name + " >>>>> is active object";
}
yield return new WaitForSeconds(waitTime);
}
}
}
}

但是，如果比较工作，则协程位于中间，我退出游戏，按播放按钮退出游戏，整个编辑器都冻结了，我需要在任务管理器中强制关闭它。

Answer 1

代码if (Application.isPlaying == false)在您的情况下不起作用，因为它放置在MonoBehavior的Start方法中，该方法默认情况下仅在播放模式下调用。

要使代码可行，您可以将allobjects初始化移动到StartComparing/StopComparing方法，或者使用ExecuteInEditMode或ExecuteAlways属性在编辑器模式下运行代码。