添加启动游戏过渡场景Default Splash Scene（Unity3D开发之十三）

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原文地址: http://blog.csdn.net/cocos2der/article/details/44099095

Unity5个人版会添加Unity Logo作为启动画面，咱们既然没花钱，打个广告也应该。但Unity Logo结束后可以再添加一个自己的启动画面。

下面是添加一个简单的FadeIn->FadeOut过渡场景。

先看下效果图：

代码如下 LHSplashScreens.cs：

using UnityEngine;using System.Collections;public enum FadeStatus{    FadeIn,    FadeWaiting,    FadeOut}public class LHSplashScreens : MonoBehaviour {    public string levelToLoad;    public bool waitForInput;    public float timeFadingInFinished;    public Sprite splashSprite;    private float m_fadeSpeed;    private float m_waitTime;    private float m_alpha;    private FadeStatus m_status;    private SpriteRenderer m_splashSpriteRenderer;    public LHSplashScreens()    {        levelToLoad = "";        m_fadeSpeed = 0.3f;        m_waitTime = 0.5f;        m_status = FadeStatus.FadeIn;    }    void Awake()    {        Application.targetFrameRate = 60;    }    // Use this for initialization    void Start ()     {        if (Application.levelCount <= 1 || levelToLoad == "")        {            Debug.LogWarning("Invalid levelToLoad value.");        }        GameObject m_splashSpriteGO = new GameObject("SplashSprite");        m_splashSpriteGO.AddComponent<SpriteRenderer>();        m_splashSpriteRenderer = m_splashSpriteGO.GetComponent<SpriteRenderer>();        m_splashSpriteRenderer.sprite = splashSprite;        Transform m_splashSpriteTransform = m_splashSpriteGO.gameObject.transform;        m_splashSpriteTransform.position = new Vector2(0f, 0f);        m_splashSpriteTransform.parent = this.transform;    }    // Update is called once per frame    void Update ()     {        FadeStatus fadeStatus = m_status;        if (fadeStatus == FadeStatus.FadeIn)        {            m_alpha += m_fadeSpeed * Time.deltaTime;        }        else if (fadeStatus == FadeStatus.FadeWaiting)        {            if ((!waitForInput && Time.time >= timeFadingInFinished + m_waitTime) || (waitForInput && Input.anyKey))            {                m_status = FadeStatus.FadeOut;            }        }        else if (fadeStatus == FadeStatus.FadeOut)        {            m_alpha -= m_fadeSpeed * Time.deltaTime;        }        UpdateSplashAlpha();    }    private void UpdateSplashAlpha()    {        if (m_splashSpriteRenderer != null)        {            Color spriteColor = m_splashSpriteRenderer.material.color;            spriteColor.a = m_alpha;            m_splashSpriteRenderer.material.color = spriteColor;            if (m_alpha > 1f)            {                m_status = FadeStatus.FadeWaiting;                timeFadingInFinished = Time.time;                m_alpha = 1f;            }            if (m_alpha < 0)            {                if (Application.levelCount >= 1 && levelToLoad != "")                {                    Application.LoadLevel(levelToLoad);                }            }        }    }}

在你工程中，建立一个新的场景，作为游戏的启动场景。

添加一个Empty GameObject, 添加上面的LHSplashScreens.cs脚本：
- 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

最后完成后如下：

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用了markdown之后，停不下来啊。呵呵