Unity Scene为每一个游戏物体进行扩展编辑

using UnityEngine;
using System.Collections;
using UnityEditor;

[CustomEditor(typeof(Test))]
public class TestEditor : Editor {
void OnSceneGUI()
{
Test test = (Test)target;

//绘制文本框
Handles.Label(test.transform.position + Vector3.up * 2
,test.transform.name + ":" + test.transform.position.ToString());

//开始绘制GUI
Handles.BeginGUI();

//规定GUI显示区域
GUILayout.BeginArea(new Rect(100, 100, 100, 100));
if (GUILayout.Button("变大"))
{
test.transform.localScale = new Vector3(test.transform.localScale.x+1,
test.transform.localScale.y+1,
test.transform.localScale.z+1);
}
if (GUILayout.Button("向前移动"))
{
test.Move();
}

GUILayout.Label("我在编辑Scene视图");
GUILayout.EndArea();
Handles.EndGUI();

}

}

using UnityEngine;
using System.Collections;

public class Test : MonoBehaviour {

public void Move()
{
this.transform.Translate(Vector3.up * 10 * Time.deltaTime);
}

}