SniperShooting/snipershooting/ShootSniper/Assets/Scripts/UIScript/FlyRewardView.cs

using SSTR.Util;
using SSTRCore;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class FlyRewardView : MonoBehaviour
{
    public bool playFrameAnim; 
    public int maxNum;
    public int minNum;
    public Vector3 boomRange; //炸出范围
    public float timeToBoom;  //飞出时间
    public float timeToWait;  //飞出后每个的停滞时间
    public float timeToFly;  //飞去固定位置的时间
    public Image flyIcon;
    public AnimationCurve animationCurve = new AnimationCurve(new Keyframe(0f, 0f, 0f, 1f), new Keyframe(1f, 1f, 1f, 0f));
    private Coroutine cor;
    private Transform mParentOfCurrency;
    private Vector3 mStartPos;

    public bool isPlaying { get { return cor != null; } }
    private System.Action mCallback;

    private void OnEnable()
    {
        flyIcon.gameObject.SetActive(false);
    }

    private void OnDisable()
    {
        StopCor();
    }

    public void FlyCurrency(Vector3 to, System.Action callback)
    {
        if (!isPlaying)
        {
            mStartPos = this.transform.position;
            CreateParent();
            int coinCount = Random.Range(minNum, maxNum + 1);
            cor = StartCoroutine(BoombAndCollectCurrency(coinCount, to));
            mCallback = callback;
        }
    }
    
    // 判断物体是否在特定椭圆区域内
    public bool IsInsideEllipse(GameObject obj, Vector3 center, Vector2 radii)
    {
        Vector3 localPos = obj.transform.position - center;
        float xRatio = localPos.x / radii.x;
        float yRatio = localPos.y / radii.y;
        return xRatio * xRatio + yRatio * yRatio <= 1;
    }

    public void StopCor()
    {
        if (isPlaying)
        {
            StopCoroutine(cor);
            cor = null;
        }
        if (mParentOfCurrency != null)
        {
            DestroyImmediate(mParentOfCurrency.gameObject);
        }
        mCallback = null;
    }

    IEnumerator BoombAndCollectCurrency(int count, Vector3 to)
    {
        List<Transform> currencyObj = new List<Transform>();
        Transform createObj = null;
        for (int i = 0; i < count; i++)
        {
            createObj = CreateCurrencyObj();
            currencyObj.Add(createObj);
            StartCoroutine(BoomOut(createObj));
        }
        yield return new WaitForSeconds(timeToBoom);
        for (int i = 1; i < currencyObj.Count; ++i)
        {
            StartCoroutine(FlyToPos(currencyObj[i], to, timeToWait * i));
        }
        yield return StartCoroutine(FlyToPos(currencyObj[0], to, timeToWait * currencyObj.Count));
        Destroy(mParentOfCurrency.gameObject);
        cor = null;
        mCallback?.Invoke();
    }

    IEnumerator BoomOut(Transform fromObj)
    {
        Vector3 from = fromObj.transform.position;
        Vector3 to = new Vector3(Random.Range(-boomRange.x, boomRange.x), Random.Range(-boomRange.y, boomRange.y), Random.Range(-boomRange.z, boomRange.z)) + from;
        //DebugEx.Log("BoomOut from="+from+" to="+to);
        float timer = 0;
        while (timer < timeToBoom)
        {
            timer += Time.deltaTime;
            Vector3 pos = Vector3.Lerp(from, to, timer / timeToBoom);
            fromObj.position = pos;
            yield return null;
        }
    }

    IEnumerator FlyToPos(Transform fromObj, Vector3 to, float delay)
    {
        yield return new WaitForSeconds(delay);
        Vector3 from = fromObj.transform.position;
        float timer = 0;
        while (timer < timeToFly)
        {
            timer += Time.deltaTime;
            float val = timer / timeToFly;
            float factor = animationCurve.Evaluate(val);
            Vector3 pos = Vector3.Lerp(from, to, factor);
            fromObj.position = pos;
            yield return null;
        }
        Core.Sound.Play(SSTR.Sound.SoundEnum.UI_huode_jinbi.ToString(), SSTR.Sound.MuteType.SoundEff, false);
    }

    Transform CreateCurrencyObj()
    {
        GameObject obj = GameObject.Instantiate(flyIcon.gameObject);
        obj.SetActive(true);
        obj.transform.SetParent(mParentOfCurrency);
        obj.transform.localScale = Vector3.one;
        obj.transform.localEulerAngles = Vector3.zero;
        obj.transform.position = mParentOfCurrency.transform.position;
        if (playFrameAnim)
        {
            // SequenceOfFramesAni sf = obj.GetComponent<SequenceOfFramesAni>();
            // sf.Play();
        }
        return obj.transform;
    }

    void CreateParent()
    {
        GameObject obj = new GameObject("parentOfCurrency");
        mParentOfCurrency = obj.transform;
        mParentOfCurrency.SetParent(this.transform);
        mParentOfCurrency.position = mStartPos;
        mParentOfCurrency.localScale = Vector3.one;
        obj.transform.localEulerAngles = Vector3.zero;
    }

}