powerfun-unity/Assets/Scripts/Scenes/Ride/Competiton/TopRankingFactory.cs

using Assets.Scenes.Ride.Scripts.Model;
using Assets.Scenes.Ride.Scripts.Model.CyclingModels;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;

namespace Assets.Scenes.Ride.Scripts
{
    public class TopRankingFactory : BaseListFactory
    {
        private List<CompetitionTopModel> rankingList {get;set;}
        private AbstractPlayer currentPlayer { get; set; }
        private int topSize = 6;//取前6名
        protected override void Awake()
        {
            //base.Awake();
            scroll = transform.Find("List").gameObject;
            if (scroll != null)
            {
                UIManager.AddEvent(scroll, UnityEngine.EventSystems.EventTriggerType.EndDrag, OnEndDrag);
            }
            parent = scroll.transform.Find("Viewport/Content");
            cyclingController = FindObjectOfType<CyclingController>();
            playerController = FindObjectOfType<PlayerController>();
            currentPlayer = cyclingController.currentPlayer;
            nearByItem = Resources.Load<GameObject>("UI/Prefab/Match/TopRankingItem");
            nearByMajorItem = Resources.Load<GameObject>("UI/Prefab/Match/CompetitionRankingMajorItem");
        }

        protected override void CreateList()
        {
            CompetitionModel s = cyclingController.cyclingController as CompetitionModel;
            var ss = s?.competitionRankingModel;
            rankingList = ss?.TopList;
            if (rankingList == null) return;
           
            for (int i = 0; i < rankingList.Count(); i++)
            {
                Create(rankingList[i]);
            }
        }
        private void Create(CompetitionTopModel item)
        {
            var rankingList = FindObjectsOfType<TopRankingItem>();
            var competitionRankingItem = rankingList.Where(c => c.rank == item.Index).FirstOrDefault();
            //如果当前有这个用户则更新没有则创建并setslibingindex
            if (competitionRankingItem == null)
            {
                //创建
                if (bufferSize < pageSize)
                {
                    //情况一：还有足够的buffer,直接创建
                    GameObject prefabItem = nearByItem;
                    GameObject newObj = (GameObject)Instantiate(prefabItem, parent);
                    competitionRankingItem = newObj.GetComponent<TopRankingItem>();
                    bufferSize++;
                }
                else
                {
                    //情况二：没有足够的buffer，找到要被淘汰的buffer()最后一名
                    competitionRankingItem = rankingList.OrderByDescending(c => c.rank).FirstOrDefault();
                }
            }
            competitionRankingItem.setHead(item.Head);
            competitionRankingItem.setTimer(item.TripTime);
            competitionRankingItem.SetRank(item.Index);
            competitionRankingItem.setName(item.Name);
            competitionRankingItem.setUserId(item.UserId);
            var countryTexture = cyclingController.GetCountryImageByName(item.Country);
            competitionRankingItem.setCountry(countryTexture);
            competitionRankingItem.transform.SetSiblingIndex(item.Index);
        }
    }
}