using System.Collections.Generic;
using UnityEngine;
//Author:ZCG
//CreatTime:12/8/2017
public class ParticleControl : MonoBehaviour
{
    [SerializeField]
    /// <summary>鎵€鏈夌殑绮掑瓙绯荤粺</summary>
    protected ParticleSystem[] particleAll;
    [SerializeField]
    [Range(0, 10)]
    /// <summary>鎺у埗澶у皬</summary>
    protected float Scale = 1;
    [SerializeField]
    [Range(1f, 10f)]
    /// <summary>鎺у埗澶у皬</summary>
    protected float ScaleSpeed = 1f;
    //scale闄愬埗
    [SerializeField]
    protected float scaleMin = 0;
    [SerializeField]
    protected float scaleMax = 10;
    //鍚姩鍙樺寲鐨勫弬鏁?
    [SerializeField]
    protected bool UseLocaleScale = false;
    [SerializeField]
    protected bool UseThisLocaleScale = false;
    [SerializeField]
    protected bool UseGravityModifier = true;
    [SerializeField]
    protected bool UseSize = true;
    [SerializeField]
    protected bool UseStartLifetime = true;
    [SerializeField]
    protected bool UseSpeed = true;
    [SerializeField]
    protected bool UseRotation = true;
    [SerializeField]
    protected bool UseRateOverTime = false;
    //鏀瑰彉鍥犲瓙
    [SerializeField]
    [Range(0, 10)]
    protected float divisorLocaleScale = 1;
    [SerializeField]
    [Range(0, 10)]
    protected float divisorGravityModifier = 1;
    [SerializeField]
    [Range(0, 10)]
    protected float divisorSize = 1;
    [SerializeField]
    [Range(0, 10)]
    protected float divisorStartLifetime = 1;
    [SerializeField]
    [Range(0, 10)]
    protected float divisorSpeed = 1;
    [SerializeField]
    [Range(0, 10)]
    protected float divisorRotation = 1;
    [SerializeField]
    [Range(0, 10)]
    protected float divisorRateOverTime = 1;

    private void Awake()
    {
        Init();
        if (particleAll.Length == 0)
            particleAll = GetParticleAll(this.transform);
        InitValue();
        ParticleScaleControl();
    }
    //private void Start()
    //{

    //}
    private void Update()
    {
        //InputManage();
    }
    /// <summary>
    /// 鍒濆鍖栧弬鏁?
    /// </summary>
    protected virtual void Init()
    {
        //鍒濆鍖栧惎鍔ㄥ彉鍖栫殑鍙傛暟鍜屾敼鍙樺洜瀛?
    }
    /// <summary>
    /// 杈撳叆鎺у埗
    /// </summary>
    protected virtual void InputManage()
    {//娴嬭瘯鐢?
#if UNITY_EDITOR
        //if (Input.GetKey(KeyCode.Equals))//鎹㈡垚鑷繁鐨勮緭鍏ユ柟寮?
        //    Up();
        //if (Input.GetKey(KeyCode.Minus))
        //    Down();
#endif
    }
    /// <summary>
    /// 澶?
    /// </summary>
    protected virtual void Up(float weight)
    {
        Scale += ScaleSpeed * weight;
        ParticleScaleControl();
    }
    /// <summary>
    /// 灏?
    /// </summary>
    protected virtual void Down(float weight)
    {
        Scale -= ScaleSpeed * weight;
        ParticleScaleControl();
    }
    /// <summary>
    /// 璁剧疆绮掑瓙澶у皬
    /// </summary>
    /// <param name="value"></param>
    protected virtual void SetScale(float value)
    {
        Scale = value;
        ParticleScaleControl();
    }
    /// <summary>
    /// 鍒濆鍊?
    /// </summary>
    protected ParticleData[] particleInitValus;
    /// <summary>
    /// 鍒濆鍖栬褰曟墍鏈夌矑瀛愮郴缁熺殑鏁板€?
    /// </summary>
    private void InitValue()
    {
        particleInitValus = new ParticleData[particleAll.Length];//澹版槑鏁扮粍闀垮害锛堣繕闇€瑕佸姣忎釜鍗曠嫭鐨勫厓绱爊ew涓€娆★級
        for (int i = 0; i < particleAll.Length; i++)
        {
            particleInitValus[i] = new ParticleData();//姣忎釜鍏冪礌new涓€娆℃墠鑳戒娇鐢?
            //缂╂斁
            particleInitValus[i].scale = particleAll[i].transform.localScale;
            //閲嶅姏
            var gravityModifier = particleAll[i].main.gravityModifier;
            if (gravityModifier.mode == ParticleSystemCurveMode.TwoConstants)
            {
                particleInitValus[i].gravityModifier_constantMin = gravityModifier.constantMin;
                particleInitValus[i].gravityModifier_constantMax = gravityModifier.constantMax;
            }
            else if (gravityModifier.mode == ParticleSystemCurveMode.Constant)
                particleInitValus[i].gravityModifier_constant = gravityModifier.constant;
            //澶у皬
            var startSize = particleAll[i].main.startSize;
            if (startSize.mode == ParticleSystemCurveMode.TwoConstants)
            {
                particleInitValus[i].size_constantMin = startSize.constantMin;
                particleInitValus[i].size_constantMax = startSize.constantMax;
            }
            else if (startSize.mode == ParticleSystemCurveMode.Constant)
                particleInitValus[i].size_constant = startSize.constant;
            //鐢熷懡鍛ㄦ湡
            var startLifetime = particleAll[i].main.startLifetime;
            if (startLifetime.mode == ParticleSystemCurveMode.TwoConstants)
            {
                particleInitValus[i].startLifetime_constantMin = startLifetime.constantMin;
                particleInitValus[i].startLifetime_constantMax = startLifetime.constantMax;
            }
            else if (startLifetime.mode == ParticleSystemCurveMode.Constant)
                particleInitValus[i].startLifetime_constant = startLifetime.constant;
            //閫熷害
            var startSpeed = particleAll[i].main.startSpeed;
            if (startSpeed.mode == ParticleSystemCurveMode.TwoConstants)
            {
                particleInitValus[i].speed_constantMin = startSpeed.constantMin;
                particleInitValus[i].speed_constantMax = startSpeed.constantMax;
            }
            else if (startSpeed.mode == ParticleSystemCurveMode.Constant)
                particleInitValus[i].speed_constant = startSpeed.constant;
            //鏃嬭浆
            var startRotation = particleAll[i].main.startRotation;
            if (startRotation.mode == ParticleSystemCurveMode.TwoConstants)
            {
                particleInitValus[i].rotation_constantMin = startRotation.constantMin;
                particleInitValus[i].rotation_constantMax = startRotation.constantMax;
            }
            else if (startRotation.mode == ParticleSystemCurveMode.Constant)
                particleInitValus[i].rotation_constant = startRotation.constant;
            //鍙戝皠鏁伴噺
            var rate = particleAll[i].emission.rateOverTime;
            if (rate.mode == ParticleSystemCurveMode.TwoConstants)
            {
                particleInitValus[i].rate_constantMin = rate.constantMin;
                particleInitValus[i].rate_constantMax = rate.constantMax;
            }
            else if (rate.mode == ParticleSystemCurveMode.Constant)
                particleInitValus[i].rate_constant = rate.constant;
            //鍛ㄦ湡鍐呯矑瀛愭渶澶у彂灏勬暟閲?
            particleInitValus[i].maxParticles = particleAll[i].main.maxParticles;
        }

    }
    private float oldScale;//璁板綍涓婁竴娆＄缉鏀炬暟鍊?
    /// <summary>
    /// 绮掑瓙鎺у埗
    /// </summary>
    protected void ParticleScaleControl()
    {
        Scale = Mathf.Clamp(Scale, scaleMin, scaleMax);
        if (Scale == scaleMin)
        {
            for (int i = 0; i < particleAll.Length; i++)
            {
                if (particleAll[i].isPlaying)
                {
                    //Stop鏂规硶鎵ц鏃讹紝鎵ц瀹屾病鏈夌珛鍗虫敼鍙榠sPlaying鍜宨sStoped灞炴€у€硷紝瀵艰嚧鍙兘鏌愪釜瀛愮矑瀛愮壒鏁堟垨鍏ㄩ儴鐨刬sPlaying杩樹负true
                    //浠庤€岄€犳垚鍐嶆墦寮€绮掑瓙绯荤粺鏃讹紙鍙婁笅闈㈢殑else閫昏緫锛夛紝涓嶈兘姝ｅ父鎵撳紑
                    //particleAll[i].Stop();
                    //Debug.Log("Stop:" + particleAll[i].name + particleAll[i].isPlaying);
                }
            }
        }
        else
        {
            for (int i = 0; i < particleAll.Length; i++)
            {
                if (!particleAll[i].isPlaying)
                {
                    //particleAll[i].Play();
                    //Debug.Log("Play:" + particleAll[i].name);
                }
            }
        }
        if (Scale == 0 || Scale == oldScale)
            return;
        oldScale = Scale;
        for (int i = 0; i < particleAll.Length; i++)
        {
            if (UseLocaleScale)//缂╂斁
            {
                if (!UseThisLocaleScale)//鍚敤鑷韩鐨勭缉鏀?
                {
                    if (particleAll[i].gameObject.name != this.name)
                        particleAll[i].transform.localScale = particleInitValus[i].scale * Scale * divisorLocaleScale;
                }
                else
                    particleAll[i].transform.localScale = particleInitValus[i].scale * Scale * divisorLocaleScale;
            }
            if (UseGravityModifier)//閲嶅姏
            {
                //particleAll[i].gravityModifier *= Scale;
                var main = particleAll[i].main;
                var mainModule = main.gravityModifier;
                if (mainModule.mode == ParticleSystemCurveMode.TwoConstants)
                {
                    //mainModule.constant *= Scale;//鍏跺疄鏀瑰彉鐨勫氨鏄痗onstantMax绛夊悓浜巑ain.startSizeMultiplier
                    mainModule.constantMin = particleInitValus[i].gravityModifier_constantMin * Scale * divisorGravityModifier;
                    mainModule.constantMax = particleInitValus[i].gravityModifier_constantMax * Scale * divisorGravityModifier;
                }
                else if (mainModule.mode == ParticleSystemCurveMode.Constant)
                    mainModule.constant = particleInitValus[i].gravityModifier_constant * Scale * divisorGravityModifier;
                main.gravityModifier = mainModule;
            }
            if (UseSize)//澶у皬
            {
                var main = particleAll[i].main;
                var mainModule = main.startSize;
                if (mainModule.mode == ParticleSystemCurveMode.TwoConstants)
                {
                    mainModule.constantMin = particleInitValus[i].size_constantMin * Scale * divisorSize;
                    mainModule.constantMax = particleInitValus[i].size_constantMax * Scale * divisorSize;
                }
                else if (mainModule.mode == ParticleSystemCurveMode.Constant)
                    mainModule.constant = particleInitValus[i].size_constant * Scale * divisorSize;
                main.startSize = mainModule;
            }
            if (UseStartLifetime)//鐢熷懡鍛ㄦ湡
            {
                var main = particleAll[i].main;
                var mainModule = main.startLifetime;
                if (mainModule.mode == ParticleSystemCurveMode.TwoConstants)
                {
                    mainModule.constantMin = particleInitValus[i].startLifetime_constantMin * Scale * divisorStartLifetime;
                    mainModule.constantMax = particleInitValus[i].startLifetime_constantMax * Scale * divisorStartLifetime;
                }
                else if (mainModule.mode == ParticleSystemCurveMode.Constant)
                    mainModule.constant = particleInitValus[i].startLifetime_constant * Scale * divisorStartLifetime;
                main.startLifetime = mainModule;
            }
            if (UseSpeed)//閫熷害
            {
                var main = particleAll[i].main;
                var mainModule = main.startSpeed;
                if (mainModule.mode == ParticleSystemCurveMode.TwoConstants)
                {
                    mainModule.constantMin = particleInitValus[i].speed_constantMin * Scale * divisorSpeed;
                    mainModule.constantMax = particleInitValus[i].speed_constantMax * Scale * divisorSpeed;
                }
                else if (mainModule.mode == ParticleSystemCurveMode.Constant)
                    mainModule.constant = particleInitValus[i].speed_constant * Scale * divisorSpeed;
                main.startSpeed = mainModule;
            }
            if (UseRotation)//鏃嬭浆
            {
                var main = particleAll[i].main;
                var mainModule = main.startRotation;
                if (mainModule.mode == ParticleSystemCurveMode.TwoConstants)
                {
                    mainModule.constantMin = particleInitValus[i].rotation_constantMin * Scale * divisorRotation;
                    mainModule.constantMax = particleInitValus[i].rotation_constantMax * Scale * divisorRotation;
                }
                else if (mainModule.mode == ParticleSystemCurveMode.Constant)
                    mainModule.constant = particleInitValus[i].rotation_constant * Scale * divisorRotation;
                main.startRotation = mainModule;
            }
            if (UseRateOverTime)//绮掑瓙鏁伴噺
            {//璁剧疆鏈€澶ф暟閲?
                var main = particleAll[i].main;
                main.maxParticles = (int)(particleInitValus[i].maxParticles * Scale * divisorRateOverTime);
                //鍙戝皠鏁伴噺
                var emission = particleAll[i].emission;
                var rateMode = emission.rateOverTime;
                if (rateMode.mode == ParticleSystemCurveMode.TwoConstants)
                {
                    rateMode.constantMin = particleInitValus[i].rate_constantMin * Scale * divisorRateOverTime;
                    rateMode.constantMax = particleInitValus[i].rate_constantMax * Scale * divisorRateOverTime;
                }
                else if (rateMode.mode == ParticleSystemCurveMode.Constant)
                    rateMode.constant = particleInitValus[i].rate_constant * Scale * divisorRateOverTime;
                emission.rateOverTime = rateMode;
            }
        }
    }
    /// <summary>鑾峰彇鎵€鏈夌殑绮掑瓙绯荤粺</summary>
    /// <param name="parent">鐖剁墿浣撲綅缃?/param>
    /// <returns>鎵€鏈夋墍鏈夊寘鎷湰韬矑瀛愭暟缁?/returns>
    private ParticleSystem[] GetParticleAll(Transform parent)
    {
        List<ParticleSystem> particles = new List<ParticleSystem>();
        if (this.GetComponent<ParticleSystem>())
            particles.Add(this.GetComponent<ParticleSystem>());
        for (int i = 0; i < parent.childCount; i++)
        {
            var child = parent.GetChild(i);
            if (child.GetComponent<ParticleSystem>())
            {
                particles.Add(child.GetComponent<ParticleSystem>());
            }
        }
        return particles.ToArray();
    }
}