添加启动游戏过渡场景Default Splash Scene（Unity3D开发之十三）
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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 initializationvoid 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 framevoid 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();}(){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：
用了markdown之后，停不下来啊。呵呵
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