Handles.Disc

参数

返回

Quaternion 通过用户与手柄的交互修改的新旋转值。如果用户没有移动手柄，则将返回您传递给相应函数的值。

描述

Make a 3D disc that can be dragged with the mouse. Note: Use HandleUtility.GetHandleSize where you might want to have constant screen-sized handles.

\ 场景视图中的圆盘手柄。

// Name this script "DiscHandleEditor"
using UnityEngine;
using UnityEditor;

[CustomEditor(typeof(DiscHandle))]
[CanEditMultipleObjects]
public class DiscHandleEditor : Editor
{
    public void OnSceneGUI()
    {
        DiscHandle t = (target as DiscHandle);

        EditorGUI.BeginChangeCheck();
        Quaternion rot = Handles.Disc(t.rot, t.transform.position, new Vector3(1, 1, 0), 5, false, 1);

        if (EditorGUI.EndChangeCheck())
        {
            Undo.RecordObject(target, "Disc Rotate");
            t.rot = rot;
            t.Update();
        }
    }
}

附加到此手柄的脚本：

// Name this script "DiscHandle"
using UnityEngine;
[ExecuteInEditMode]
public class DiscHandle : MonoBehaviour
{
    public Quaternion rot = Quaternion.identity;
    public void Update()
    {
        transform.rotation = rot;
    }
}