From c4b8dbd94f555b599bc847b7fa8a2e1c6caf31e1 Mon Sep 17 00:00:00 2001
From: wangguan <wangguan@kt007.com>
Date: Wed, 21 Oct 2020 10:53:37 +0800
Subject: [PATCH] Merge branch 'master' of ssh://172.16.1.52:8091/GemBattle

---
 Assets/Scripts/Data/EndlessPortData.cs |   57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 57 insertions(+), 0 deletions(-)

diff --git a/Assets/Scripts/Data/EndlessPortData.cs b/Assets/Scripts/Data/EndlessPortData.cs
index 92cd2b0..e117da0 100644
--- a/Assets/Scripts/Data/EndlessPortData.cs
+++ b/Assets/Scripts/Data/EndlessPortData.cs
@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System;
 
 /**
  * endless_port 无尽模式关卡配置表数据处理类
@@ -18,6 +19,11 @@
         /// 预先随机好的敌人数据,spawnAgent时直接取这个数据,不再动态随机
         /// </summary>
         public endless_enemy EnemyData;
+
+        /// <summary>
+        /// 掉落概率总权重,即:表中掉落概率那一项全部加起来
+        /// </summary>
+        public int DropTotalWeight;
     }
 
     public class EndlessPortData
@@ -28,6 +34,8 @@
         private static List<endless_port> endlessPortList;
 
         private static List<EndlessPortConfig> portConfigList;
+
+        private static Random random;
 
         /// <summary>
         /// 最大关卡
@@ -46,6 +54,7 @@
         {
             endlessPortList = JsonDataCenter.GetList<endless_port>();
             portConfigList = new List<EndlessPortConfig>();
+            random = new Random();
 
             foreach (endless_port data in endlessPortList)
             {
@@ -55,6 +64,14 @@
                 EndlessPortConfig param = new EndlessPortConfig();
                 param.Config = data;
                 param.EnemyData = EndlessEnemyData.GetDataById(data.enemy_id);
+                int totalWeight = 0;
+
+                for (int i = 0; i < data.drop_rate.Count; ++i)
+                {
+                    totalWeight += data.drop_rate[i];
+                }
+
+                param.DropTotalWeight = totalWeight;
                 portConfigList.Add(param);
             }
         }
@@ -130,5 +147,45 @@
 
             return ret;
         }
+
+        /// <summary>
+        /// 根据关卡等级、波次、赛道获得击杀敌人掉落的奖励列表
+        /// </summary>
+        /// <param name="level">关卡等级</param>
+        /// <param name="wave">波次</param>
+        /// <param name="tunel">第几条赛道</param>
+        /// <returns></returns>
+        public static List<reward> GetDropRewardList(int level, int wave, int tunel)
+        {
+            List<reward> ret = new List<reward>();
+            List<List<EndlessPortConfig>> levelData = GetLevelWaveData(level);
+
+            if (levelData.Count == 0)
+                throw new Exception($"当前关卡:{level}, 没有关卡数据");
+
+            List<EndlessPortConfig> waveData = levelData[wave - 1];
+
+            if (waveData.Count == 0)
+                throw new Exception($"当前关卡:{level},当前波次:{wave},没有波次数据");
+
+            for (int i = 0; i < waveData.Count; ++i)
+            {
+                if (waveData[i].Config.tunel != tunel) continue;
+
+                for (int j = 0; j < waveData[i].Config.drop.Count; ++j)
+                {
+                    // 概率为0
+                    if (waveData[i].Config.drop_rate[j] == 0) continue;
+
+                    int val = random.Next(waveData[i].DropTotalWeight);
+
+                    if (val <= waveData[i].Config.drop_rate[j])
+                        // 命中
+                        ret.Add(waveData[i].Config.drop[j]);
+                }
+            }
+
+            return ret;
+        }
     }
 }
\ No newline at end of file

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