Common（十一）—— FadeInOut

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文件目录为：Assets/Scripts/Common/FadeInOut.cs    这个文件主要实现了角色淡入淡出的效果，但是其中用到的shader我没找到，所以暂时只能用作参考。

using UnityEngine;using System.Collections.Generic;//淡入淡出效果public class FadeInOut : MonoBehaviour{    public enum FADE_TYPE    {        FADE_IN,            //淡入状态        FADE_OUT,           //淡出状态        FADE_NOT,           //非淡入淡出    }    //角色当前透明度    public float mCurFadeValue = 1.0f;    //角色需要的透明度    private float mFadeValue = -1.0f;    //过渡时间    private float mFadeTime = -1.0f;    //单位淡出值     private float mDeltaFade = 0.0f;    //淡入淡出类型    public FADE_TYPE mFadeType = FADE_TYPE.FADE_NOT;    //角色默认材质    private Material mDefaultMat;    //角色透明材质    private Material mTransparentMat;    //保存角色的SkinnedMeshRender    private List<SkinnedMeshRenderer> mMeshRenders = new List<SkinnedMeshRenderer>();    //保存角色的ParticleSystem    private ParticleSystem[] mParticleSystems;    //保存每个ParticleSystem的alpha值    private float[] mPsAlphas;    //保存每个ParticleSystem的alpha值    private float[] mPsCurAlphas;    void Start()    {                //遍历获取第一层SkinnedMeshRender        for (int i = 0; i < gameObject.transform.childCount; i++)        {            Transform ts = gameObject.transform.GetChild(i);            GameObject psObj = ts.gameObject;            if (psObj)            {                SkinnedMeshRenderer render = psObj.GetComponent<SkinnedMeshRenderer>();                if (render != null)                    mMeshRenders.Add(render);            }        }        //获取玩家身上所有特效        mParticleSystems = gameObject.GetComponentsInChildren<ParticleSystem>();        if (mParticleSystems.Length != 0)        {            //开辟空间            mPsAlphas = new float[mParticleSystems.Length];            mPsCurAlphas = new float[mParticleSystems.Length];        }        //保存粒子系统的alpha值        for (int i = 0; i < mParticleSystems.Length; i++)        {            mPsAlphas[i] = mParticleSystems[i].startColor.a;            mPsCurAlphas[i] = mParticleSystems[i].startColor.a;        }        if (mMeshRenders.Count == 0)            Debug.LogError("the SkinnedMeshRender can not be empty in fadeInOut!");        //获取默认材质        mDefaultMat = mMeshRenders[0].sharedMaterial;        //创建角色透明材质        //Shader.Find can be used to switch to another shader without having to keep a reference to the shader.        //name is the name you can see in the shader popup of any material, for example "Standard", "Unlit/Texture", "Legacy Shaders/Diffuse" etc.        //这里Find的shader的name应当是能在shader弹出菜单里能找到的才对        mTransparentMat = new Material(Shader.Find("Custom/Alpha_Diffuse"));        //修改材质        mTransparentMat.SetTexture(0,mDefaultMat.GetTexture(0));    }    //修改模型材质    void ChangeMaterial(Material mat)    {        foreach (SkinnedMeshRenderer render in mMeshRenders)        {            render.material = mat;        }    }    //设置角色模型可见性    void SetMeshVisible(bool flag)    {        foreach (SkinnedMeshRenderer render in mMeshRenders)        {            render.enabled = flag;        }    }    //淡入效果    //这里的deltaTime单位为秒    public void FadeIn(float deltaTime, float alphaValue)    {        //此时mCurFadeValue应当是一个较小的值，至少小于1.0f        //从alphaValue-mCurFadeValue逐渐增加        if (alphaValue > mCurFadeValue)        {            mFadeType = FADE_TYPE.FADE_IN;            mFadeValue = alphaValue;            mFadeTime = deltaTime;            mDeltaFade = (alphaValue - mCurFadeValue) / deltaTime;            ChangeMaterial(mTransparentMat);            SetMeshVisible(true);             }            }    //淡出效果    //这里的deltaTime单位为秒    public void FadeOut(float deltaTime, float alphaValue)    {        if (alphaValue < mCurFadeValue)        {            mFadeType = FADE_TYPE.FADE_OUT;            mFadeValue = alphaValue;            mFadeTime = deltaTime;            mDeltaFade = (alphaValue - mCurFadeValue) / deltaTime;            ChangeMaterial(mTransparentMat);        }    }    void Update()    {                       if(mFadeType == FADE_TYPE.FADE_NOT)            return;        float deltaFade = mDeltaFade * Time.deltaTime;        //处理每个特效alpha        for (int i = 0; i < mPsCurAlphas.Length; i++)        {            float psDelta = deltaFade * mPsAlphas[i];            mPsCurAlphas[i] += psDelta;            if (mPsCurAlphas[i] <= 0.0f)                mPsCurAlphas[i] = 0.0f;            else if(mPsCurAlphas[i] >= 1.0f)                mPsCurAlphas[i] = 1.0f;            Color colour = mParticleSystems[i].startColor;            mParticleSystems[i].startColor = new Color(colour.r, colour.g, colour.b, mPsCurAlphas[i]);        }        //淡入效果        if (mFadeType == FADE_TYPE.FADE_IN)        {            mCurFadeValue = mCurFadeValue + deltaFade;            //结束            if (mCurFadeValue >= mFadeValue)            {                mCurFadeValue = mFadeValue;                mFadeType = FADE_TYPE.FADE_NOT;                //换回默认的Mat                ChangeMaterial(mDefaultMat);            }            mTransparentMat.SetColor("_Color", new Color(1, 1, 1, mCurFadeValue));        }        //淡出效果        else if (mFadeType == FADE_TYPE.FADE_OUT)        {            mCurFadeValue = mCurFadeValue + deltaFade;            //结束            if (mCurFadeValue <= mFadeValue)            {                mCurFadeValue = mFadeValue;                mFadeType = FADE_TYPE.FADE_NOT;               // SetMeshVisible(false);            }            mTransparentMat.SetColor("_Color", new Color(1, 1, 1, mCurFadeValue));        }    }   }

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