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

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。

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