在滑動屏幕的時候，上圖中的內容饒圓中心旋轉，並且箭頭的方向保持不變

每個Item上掛載的腳本:

1 using UnityEngine;
2 
3 public class ItemTest : MonoBehaviour
4 {
5     void Update()
6     {
7         transform.eulerAngles = Vector3.zero;
8     }
9 }

父結點上掛載的腳本:

 1 using System.Collections;
 2 using System.Collections.Generic;
 
 3 using UnityEngine;
 4 
 5 public class lgs : MonoBehaviour
 6 {
 7     [SerializeField]
 8     ItemTest[] itemArray;
 9     [SerializeField]
10     Vector3 centerPos;
11     [SerializeField]
12     float radius;
13 
14     Vector3[] posArray;
15     void Start()
16     {
17         UIEventListener.Get(gameObject).onDrag = Drag;
 
18         InitPosFromCircularRing(out posArray, centerPos, itemArray.Length, radius);
19         for (int i = 0, iMax = itemArray.Length; i < iMax; i++)
20         {
21             itemArray[i].transform.localPosition = posArray[i];
22         }
23     }
24 
25     float tmpVal = 0;
26     void
 
 Drag(GameObject go, Vector2 vec2)
27     {
28         tmpVal += vec2.y > 0 ? 2 : -2;
29         transform.localEulerAngles = new Vector3(0, 0, tmpVal);
30     }
31 
32     void InitPosFromCircularRing(out Vector3[] posArray, Vector3 centerPos, int count, float radius)
33     {
34         posArray = new Vector3[count];
35         float copies = (360.0f / count) * Mathf.Deg2Rad;
36         for (int i = 0, j = count; i < j; ++i)
37         {
38             float x = radius * Mathf.Cos(copies * i);
39             //float y = centerPos.y;
40             float z = radius * Mathf.Sin(copies * i);
41             Vector3 vec3 = new Vector3(x, z, 0) + centerPos;
42             posArray[i] = vec3;
43         }
44     }
45 }

NGUI實現滑動屏幕的時候，進行環形旋轉