using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System;

namespace DisComputer
{
    /// <summary>
    /// 延申指向箭头
    /// </summary>
    public class ProgressArrow : MonoBehaviour
    {
        //箭头进度延申
        private List<Image> arrowImgs;

        [SerializeField]
        private Color init_color = new Color(67.0f/255.0f,123.0f/255.0f,171.0f/255.0f,1);

        [SerializeField]
        private Color shake_color = new Color(245.0f/255.0f,244.0f/255.0f,38.0f/255.0f,1);


        public bool isInitColor = true;




        [Header("初始隐藏")]
        public bool isInitHide = false;

        private float speed = 1.2f;

        private void Awake()
        {
            arrowImgs = new List<Image>(GetComponentsInChildren<Image>());
        }

        // Start is called before the first frame update
        void Start()
        {
            if(isInitHide)
                SetArrowZero();

        }


        public void PlayArrow(bool isShake,Action finish=null)
        {
            SetArrowZero();
            StartCoroutine(Play(isShake,finish));
           
        }




        private void OnDisable()
        {
            SetArrowZero();
        }


        /// <summary>
        /// 设置箭头归零
        /// </summary>
        public  void SetArrowZero()
        {
            if ( arrowImgs == null||arrowImgs.Count < 0)
                return;
            foreach(var item in arrowImgs)
            {
                item.fillAmount = 0;
                if(isInitColor)
                    item.color = init_color;

            }
        }

        /// <summary>
        /// 设置箭头归一
        /// </summary>
        void SetArrowOne()
        {
            if (arrowImgs == null || arrowImgs.Count < 0)
                return;

            foreach (var item in arrowImgs)
            {
                item.fillAmount = 1;
                
            }
        }

        /// <summary>
        /// 播放箭头动效
        /// </summary>
        IEnumerator Play(bool isShake,Action finish=null)
        {
            int i = 0;
            float fillamount = .0f;
            while (true)
            {
                yield return new WaitForEndOfFrame();

                Image image = arrowImgs[i];
                if (isShake)
                    image.color = shake_color;

                fillamount += Time.deltaTime * speed;
                image.fillAmount = fillamount;

                if (fillamount >= 1.0f)
                {
                    i++;
                    fillamount = .0f;
                }

                if (i >= arrowImgs.Count)
                    break;
            }
            finish?.Invoke();
        }

  
    }
}