c# - Unity 编辑器脚本：可见/隐藏小工具

Question

我想以编程方式隐藏或显示 Gizmo。

这可能吗？

Answer 1

可以通过 Unity 构建的 API 来完成吗？没有。

虽然，这可以在反射的帮助下完成，因为 Unity 没有公开该功能的 API。这段代码不是我写的。它来自这里。

您可以随时调用ToggleGizmos(true)orToggleGizmos(false)函数，也可以将其用作插件，如下所示。任何名为Quick Fingers的新菜单都应添加到 Unity。

using System;
using System.Collections;
using System.Reflection;
using UnityEditor;

public class SceneViewGizmos {
    private static bool _globalGizmosOn;


    [MenuItem("Quick Fingers/Scene View/Toggle Gizmos &%g")] private static void ToggleAllSceneGizmos() {
        _globalGizmosOn = !_globalGizmosOn;
        ToggleGizmos(_globalGizmosOn);
    }

    [MenuItem("Quick Fingers/Scene View/Disable All Gizmos")] private static void DisableAllSceneGizmos() {
        _globalGizmosOn = false;
        ToggleGizmos(_globalGizmosOn);
    }

    [MenuItem("Quick Fingers/Scene View/Enable All Gizmos")] private static void EnableAllSceneGizmos() {
        _globalGizmosOn = true;
        ToggleGizmos(_globalGizmosOn);
    }

    private static void ToggleGizmos(bool gizmosOn) {
        int val = gizmosOn ? 1 : 0;
        Assembly asm = Assembly.GetAssembly(typeof(Editor));
        Type type = asm.GetType("UnityEditor.AnnotationUtility");
        if (type != null) {
            MethodInfo getAnnotations = type.GetMethod("GetAnnotations", BindingFlags.Static | BindingFlags.NonPublic);
            MethodInfo setGizmoEnabled = type.GetMethod("SetGizmoEnabled", BindingFlags.Static | BindingFlags.NonPublic);
            MethodInfo setIconEnabled = type.GetMethod("SetIconEnabled", BindingFlags.Static | BindingFlags.NonPublic);
            var annotations = getAnnotations.Invoke(null, null);
            foreach (object annotation in (IEnumerable)annotations) {
                Type annotationType = annotation.GetType();
                FieldInfo classIdField = annotationType.GetField("classID", BindingFlags.Public | BindingFlags.Instance);
                FieldInfo scriptClassField = annotationType.GetField("scriptClass", BindingFlags.Public | BindingFlags.Instance);
                if (classIdField != null && scriptClassField != null) {
                    int classId = (int)classIdField.GetValue(annotation);
                    string scriptClass = (string)scriptClassField.GetValue(annotation);
                    setGizmoEnabled.Invoke(null, new object[] { classId, scriptClass, val });
                    setIconEnabled.Invoke(null, new object[] { classId, scriptClass, val });
                }
            }
        }
    }
}

Answer 2

您也只需调用：

UnityEditorInternal.InternalEditorUtility.SetShowGizmos(bool show)