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

栏目：综合技术时间：2015-04-09 08:48:56

添加启动游戏过渡场景Default Splash Scene（Unity3D开发之103）

猴子原创，欢迎转载。转载请注明：转载自Cocos2Der-CSDN，谢谢！

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，我们既然没花钱，打个广告也应当。但Unity Logo结束后可以再添加1个自己的启动画面。

下面是添加1个简单的FadeIn->FadeOut过渡场景。

先看下效果图：
Unity启动过渡场景

代码以下 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1个新的场景，作为游戏的启动场景。

添加1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

最后完成后以下：

pro set

用了markdown以后，停不下来啊。呵呵

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