Unity:如何让我的变量显示在检查器中，如果一个布尔值为真，并隐藏它，当布尔值为假

Question

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class MyScript: MonoBehaviour
{
public bool a;
int b;
}

例如，这是我的脚本，如果a为真，我想在检查器中显示b，当a为假时，在检查器中隐藏b。

如何使我的自定义编辑器?

Answer 1

按如下方式添加一个新的CustomEditor脚本:

using UnityEngine;
using UnityEditor;
[CustomEditor(typeof(MyScript))]
public class MyScriptEditor: Editor
{
public override void OnInspectorGUI() 
{
// Call normal GUI (displaying "a" and any other variables you might have)
base.OnInspectorGUI();
// Reference the variables in the script
MyScript script = (MyScript)target;
if (script.a) 
{
// Ensure the label and the value are on the same line
EditorGUILayout.BeginHorizontal();
// A label that says "b" (change b to B if you want it uppercase like default) and restricts its length.
EditorGUILayout.LabelField("b", GUILayout.MaxWidth(50));
// You can change 50 to any other value
// Show and save the value of b
script.b = EditorGUILayout.IntField(script.b);
// If you would like to restrict the length of the int field, replace the above line with this one:
// script.b = EditorGUILayout.IntField(script.b, GUILayout.MaxWidth(50)); // (or any other value other than 50)
EditorGUILayout.EndHorizontal();
}
}
}

您需要更改MyScript类中变量b的定义，如下所示:

// Hide b by default, but make it public so MyScriptEditor can access it
[HideInInspector]
public int b;

如果你愿意，你可以把所有东西压缩到MyScript类中，如下所示:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
public class MyScript: MonoBehaviour
{
public bool a;

//Hide b by default, but make it public so MyScriptEditor can access it
[HideInInspector]
public int b;
[CustomEditor(typeof(MyScript))]
public class MyScriptEditor: Editor
{
public override void OnInspectorGUI() 
{
// Call normal GUI (displaying "a" and any other variables you might have)
base.OnInspectorGUI();
// Reference the variables in the script
MyScript script = (MyScript)target;
if (script.a) 
{
// Ensure the label and the value are on the same line
EditorGUILayout.BeginHorizontal();
// A label that says "b" (change b to B if you want it uppercase like default) and restrict its length.
// You can change 50 to any other value
EditorGUILayout.LabelField("b", GUILayout.MaxWidth(50));
// Show and save the value of b
script.b = EditorGUILayout.IntField(script.b);
// If you would like to restrict the length of the int field, replace the above line with this one:
// script.b = EditorGUILayout.IntField(script.b, GUILayout.MaxWidth(50)); // (or any other value other than 50)
EditorGUILayout.EndHorizontal();
}
}
}
}

我希望这有助于您的程序的需求，并告诉我，如果你需要更多的帮助!