Unity 切换游戏场景时屏幕淡入淡出效果 第二版

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using UnityEngine; using System.Collections;    public class SceneFadeInOut : MonoBehaviour {     public float fadeSpeed = 1.5f;            private bool sceneStarting = true;     private bool sceneEnding = false;            void Awake()     {         guiTexture.pixelInset = new Rect(0f, 0f, Screen.width, Screen.height);     }            void Update()     {         if (sceneStarting)         {             StartScene();         }                    if (sceneEnding)         {             EndScene();         }     }            void FadeToClear()     {         guiTexture.color = Color.Lerp(guiTexture.color, Color.clear, fadeSpeed * Time.deltaTime);     }            void FadeToBlack()     {         guiTexture.color = Color.Lerp (guiTexture.color, Color.black, fadeSpeed * Time.deltaTime);     }            void StartScene()     {         FadeToClear();                    if(guiTexture.color.a < 0.05f)         {             guiTexture.color = Color.clear;             guiTexture.enabled = false;             sceneStarting  = false;         }     }            public void EndScene()     {         guiTexture.enabled = true;         FadeToBlack();                    if(guiTexture.color.a >= 0.95f)         {             sceneEnding = false;             Application.LoadLevel(1);         }     }            void OnGUI()     {         if (!sceneStarting && GUI.Button (new Rect(0,0,100,100),"NewLevel"))         {             sceneEnding = true;         }     }    }