diff --git a/server/gameserver/mt/Map.cc b/server/gameserver/mt/Map.cc
index db9cf6a5..cc4ced2c 100644
--- a/server/gameserver/mt/Map.cc
+++ b/server/gameserver/mt/Map.cc
@@ -65,6 +65,16 @@ namespace mt
                 buff_list.push_back(a8::XValue(str).GetInt());
             }
         }
+        {
+            std::vector<std::string> strings;
+            a8::Split(ground_sampling_pos(), strings, ':');
+            if (strings.size() != 3) {
+                abort();
+            }
+            sampling_pos_ = glm::vec3((float)a8::XValue(strings[0]).GetDouble(),
+                                      (float)a8::XValue(strings[1]).GetDouble(),
+                                      (float)a8::XValue(strings[2]).GetDouble());
+        }
         if (!IsPveMap()) {
             std::vector<std::string> strings;
             a8::Split(refresh_robot(), strings, '|');
@@ -276,7 +286,7 @@ namespace mt
 
     glm::vec3 Map::GroundSamplingPos() const
     {
-
+        return sampling_pos_;
     }
 
 }
diff --git a/server/gameserver/mt/Map.h b/server/gameserver/mt/Map.h
index f8fe6c46..529a2065 100644
--- a/server/gameserver/mt/Map.h
+++ b/server/gameserver/mt/Map.h
@@ -49,6 +49,8 @@ namespace mt
         void Init2();
 
     private:
+        glm::vec3 sampling_pos_;
+
         void LoadWorldObjects();
     };
 
diff --git a/server/gameserver/roommgr.cc b/server/gameserver/roommgr.cc
index f442060f..268ce8bd 100644
--- a/server/gameserver/roommgr.cc
+++ b/server/gameserver/roommgr.cc
@@ -108,12 +108,10 @@ void RoomMgr::_CMJoin(f8::MsgHdr& hdr, const cs::CMJoin& msg)
         MatchMgr::Instance()->_CMJoin(hdr, msg);
         return;
     }
-    if (msg.proto_version() >= cs::ProtoVersion) {
-        const mt::Map* map_meta = mt::Map::GetById(msg.mapid());
-        if (!map_meta || !map_meta->IsOpen()) {
-            JoinErrorHandle(msg, 3, hdr.socket_handle);
-            return;
-        }
+    const mt::Map* map_meta = mt::Map::GetById(msg.mapid());
+    if (!map_meta || !map_meta->IsOpen()) {
+        JoinErrorHandle(msg, 3, hdr.socket_handle);
+        return;
     }
     std::shared_ptr<cs::CMJoin> join_msg = std::make_shared<cs::CMJoin>();
     *join_msg = msg;
@@ -807,6 +805,9 @@ void RoomMgr::SetMatchMode(int mode)
 void RoomMgr::AdjustCMJoin(cs::CMJoin* msg)
 {
     msg->set_force_enter_newbie_room(false);
+    if (msg->proto_version() < cs::ProtoVersion) {
+        msg->set_mapid(2001);
+    }
 #ifdef DEBUG1
     if (DebugCmd::Enable()) {
         msg->set_room_mode(kPvpRankMode);