Unity3d 添加启动过渡场景

Unity5个人版会添加Unity Logo作为启动画面，但Unity Logo结束后可以再添加一个自己的启动画面，pro版的可以在Edit→Project Settings→Player→Splash Image→去掉勾来跳过Unity自己的启动画面。

下面步入正题：

新建一个C#脚本 LHSplashScreens.cs

 1 using UnityEngine;
 2 using System.Collections;
 3 public enum FadeStatus
 4 {
 5   FadeIn,
 6   FadeWaiting,
 7   FadeOut
 8 }
 9 public class LHSplashScreens : MonoBehaviour 
10 {
11   public string levelToLoad;
12   public bool waitForInput;
13   public float timeFadingInFinished;
14   public Sprite splashSprite;
15   private float m_fadeSpeed;
16   private float m_waitTime;
17   private float m_alpha;
18   private FadeStatus m_status;
19   private SpriteRenderer m_splashSpriteRenderer;
20   public LHSplashScreens()
21   {
22     levelToLoad = "";
23     m_fadeSpeed = 0.3f;
24     m_waitTime = 0.5f;
25     m_status = FadeStatus.FadeIn;
26   }
27   void Awake()
28   {
29     Application.targetFrameRate = 60;
30   }
31   // Use this for initialization
32   void Start () 
33   {
34     if (Application.levelCount <= 1 || levelToLoad == "")
35     {
36       Debug.LogWarning("Invalid levelToLoad value.");
37     }
38     GameObject m_splashSpriteGO = new GameObject("SplashSprite");
39     m_splashSpriteGO.AddComponent<SpriteRenderer>();
40     m_splashSpriteRenderer = m_splashSpriteGO.GetComponent<SpriteRenderer>();
41     m_splashSpriteRenderer.sprite = splashSprite;
42     Transform m_splashSpriteTransform = m_splashSpriteGO.gameObject.transform;
43     m_splashSpriteTransform.position = new Vector2(0f, 0f);
44     m_splashSpriteTransform.parent = this.transform;
45   }
46   // Update is called once per frame
47   void Update () 
48   {
49     FadeStatus fadeStatus = m_status;
50     if (fadeStatus == FadeStatus.FadeIn)
51     {
52       m_alpha += m_fadeSpeed * Time.deltaTime;
53     }
54     else if (fadeStatus == FadeStatus.FadeWaiting)
55     {
56       if ((!waitForInput && Time.time >= timeFadingInFinished + m_waitTime) || (waitForInput && Input.anyKey))
57       {
58         m_status = FadeStatus.FadeOut;
59       }
60     }
61     else if (fadeStatus == FadeStatus.FadeOut)
62     {
63       m_alpha -= m_fadeSpeed * Time.deltaTime;
64     }
65     UpdateSplashAlpha();
66   }
67   private void UpdateSplashAlpha()
68   {
69     if (m_splashSpriteRenderer != null)
70     {
71       Color spriteColor = m_splashSpriteRenderer.material.color;
72       spriteColor.a = m_alpha;
73       m_splashSpriteRenderer.material.color = spriteColor;
74       if (m_alpha > 1f)
75       {
76         m_status = FadeStatus.FadeWaiting;
77         timeFadingInFinished = Time.time;
78         m_alpha = 1f;
79       }
80       if (m_alpha < 0)
81       {
82         if (Application.levelCount >= 1 && levelToLoad != "")
83         {
84           Application.LoadLevel(levelToLoad);
85         }
86       }
87     }
88   }
89 }

在你工程中，建立一个新的场景，作为游戏的启动场景。

把LHSplashScreens.cs脚本挂在场景中可以启动了的对象中，设置参数：

- Level To Load: 完成启动画面后你需要加载的场景

- Splash Sprite:过渡使用的logo sprite

运行之后就可以看到一张图片渐显渐隐之后跳转到你指定的场景中。

感谢Cocos2Der-CSDN：原文地址: http://blog.csdn.net/cocos2der/article/details/44099095