Unity 切换游戏场景时屏幕淡入淡出效果

发表于2017-02-14
评论0 2.1k浏览
  很多游戏都会有游戏场景切换,那么如何在切换场景时让游戏屏幕有淡入淡出的效果呢,相信会有很多开发者想知道,为此下面就给大家介绍下在Unity中切换游戏场景时屏幕淡入淡出的效果实现,一起来看看吧。
  下面是代码实现:
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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;
        }
    }
  
}

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