Unity3d实现幸运转盘

 1 using UnityEngine;
 2 using UnityEngine.UI;
 3 
 4 /// <summary>
 5 /// 脚本位于指针的父对象，空物体
 6 /// </summary>
 7 public class TheLuckyRoller
 8  : MonoBehaviour
 9 {
10     /// <summary>
11     /// 幸运转盘指针父对象的Transform
12     /// </summary>
13     private Transform roolPointer;
14 
15     /// <summary>
16     /// 初始旋转速度
17     /// </summary>
18     private float initSpeed;
19 
20     /// <summary>
21     /// 速度变化值
22     /// </summary>
23     private float changeSpeed = 0.5f;
24 
25     /// <summary>
26     /// 转盘是否暂停
27     /// </summary>
28     private bool isPause = true;
29 
30     /// <summary>
31     /// button事件，控制指针
32     /// </summary>
33     private Button button;
34 
35     void Awake()
36     {
37         //获取幸运转盘指针父对象的Transform
38         roolPointer = GetComponent<Transform>();
39 
40         //获取button按钮
41         button = transform.parent.Find("Button").GetComponent<Button>();
42     }
43 
44     /// <summary>
45     /// 开始抽奖，注册OnClick事件
46     /// </summary>
47     void OnEnable()
48     {
49         //清空button注册事件
50         button.onClick.RemoveAllListeners();
51         //注册OnClick事件
52         button.onClick.AddListener(OnButtonClick);
53     }
54 
55     /// <summary>
56     /// 点击事件
57     /// </summary>
58     public void OnButtonClick()
59     {
60         if (isPause)
61         {
62             //随机生成一个初始速度
63             initSpeed = Random.Range(100, 500);
64 
65             //开始旋转
66             isPause = false;
67         }
68     }
69 
70     void Update()
71     {
72         if (!isPause)
73         {
74             //转动转盘(-1为顺时针,1为逆时针)
75             roolPointer.Rotate(new Vector3(0, 0, -1)*initSpeed*Time.deltaTime);
76 
77             //让转动的速度缓缓降低
78             initSpeed -= changeSpeed;
79 
80             //当转动的速度为0时转盘停止转动
81             if (initSpeed <= 0)
82             {
83                 //转动停止
84                 isPause = true;
85             }
86         }
87     }
88 }