Unity之Handles旋转控制器-十三

Unity编辑器类在Scene下绘制旋转控制柄

using UnityEngine;
using System.Collections;
using UnityEditor;


[CustomEditor(typeof(Arraw))]
public class HandlerTest : Editor {

    float rectangleSize = 3;

    void OnSceneGUI()
    {
        float width = HandleUtility.GetHandleSize(Vector3.zero) * 0.5f;
        Arraw arraw = (Arraw)target;

        Handles.color = Color.red;
        //返回旋转角度
        arraw.rot = Handles.RotationHandle( arraw.rot, Vector3.zero);

        if (GUI.changed)
        {
             EditorUtility.SetDirty(arraw);
        }

    }
}




Arraw脚本如下，将其拖拽到需要绘制的对象上即可
using UnityEngine;
using System.Collections;

public class Arraw : MonoBehaviour {

    public Quaternion rot = Quaternion.identity;

}