From 90770e10ff6159d06f31f3226596c33ebc1f1a45 Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwei@kingsome.cn>
Date: Sun, 25 Dec 2022 17:11:02 +0800
Subject: [PATCH] 1

---
 server/gameserver/mt/AirLine.cc | 16 ++++++++++++++++
 server/gameserver/mt/AirLine.h  |  5 ++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/server/gameserver/mt/AirLine.cc b/server/gameserver/mt/AirLine.cc
index 72a88915..92351d13 100644
--- a/server/gameserver/mt/AirLine.cc
+++ b/server/gameserver/mt/AirLine.cc
@@ -3,6 +3,7 @@
 #include "mt/AirLine.h"
 
 IMPL_TABLE(mt::AirLine)
+std::map<int, std::vector<const mt::AirLine*>> mt::AirLine::mapid_hash_;
 
 namespace mt
 {
@@ -21,6 +22,21 @@ namespace mt
             _end_point_x = a8::XValue(strings[0]).GetDouble();
             _end_point_y = a8::XValue(strings[1]).GetDouble();
         }
+        {
+            auto itr = map_id_hash_.find(map_id());
+            if (itr != map_id_hash_.end()) {
+                itr->second.push_back(this);
+            } else {
+                map_id_hash_[map_id()] = std::vector<const mt::AirLine*>({this});
+            }
+        }
+    }
+
+    const AirLine* AirLine::RandAirLine(int map_id)
+    {
+        auto itr = mapid_hash_.find(map_ida);
+        return itr != mapid_hash_.end && &itr->second.empty() ?
+            itr->second.at(rand() % itr->second.size()) : nullptr;
     }
 
 }
diff --git a/server/gameserver/mt/AirLine.h b/server/gameserver/mt/AirLine.h
index ba4d4261..cbf66cb2 100644
--- a/server/gameserver/mt/AirLine.h
+++ b/server/gameserver/mt/AirLine.h
@@ -18,7 +18,10 @@ namespace mt
 
         void Init1();
 
-        static const AirLine* RandAirLine(int map_id) {};
+        static const AirLine* RandAirLine(int map_id);
+
+    private:
+        static std::map<int, std::vector<const mt::AirLine*>> mapid_hash_;
     };
 
 }