diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index da536b7..ff2776b 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -586,7 +586,9 @@ void Room::CreateHouseObstacle(Building* building, int id, float x, float y)
 
 void Room::CreateObstacle(int id, float x, float y)
 {
+    #if 0
     a8::XPrintf("createobstacle %d %f %f\n", {id, x, y});
+    #endif
     MetaData::MapThing* thing = MetaMgr::Instance()->GetMapThing(id);
     if (thing) {
         Obstacle* entity = new Obstacle();
@@ -997,7 +999,9 @@ void Room::AutoMatchTeam()
 void Room::InitAirDrop()
 {
     std::list<MetaData::AirDrop>& air_drops = MetaMgr::Instance()->GetAirDrops();
+    #if 0
     a8::XPrintf("InitAirdrop %d %d\n", {room_uuid, air_drops.size()});
+    #endif
     for (auto& air_drop : air_drops) {
         xtimer.AddDeadLineTimerAndAttach(SERVER_FRAME_RATE * air_drop.i->time(),
                                          a8::XParams()
@@ -1009,12 +1013,14 @@ void Room::InitAirDrop()
                                          {
                                              Room* room = (Room*)param.sender.GetUserData();
                                              if (!room->game_over) {
+                                                 #if 0
                                                  a8::XPrintf("airdrop %d %d %d\n",
                                                              {
                                                               param.param3,
                                                               param.param1,
                                                               param.param2
                                                              });
+                                                 #endif
                                                  room->AirDrop(param.param1, param.param2);
                                              }
                                          },
@@ -1028,11 +1034,13 @@ void Room::AirDrop(int appear_time, int box_id)
     if (thing_meta) {
         Vector2D dir = Vector2D::UP;
         dir.Rotate(a8::RandAngle());
+        #if 0
         a8::XPrintf("gas_data.pos_new %f %f\n",
                     {
                      gas_data.pos_new.x,
                      gas_data.pos_new.y
                     });
+        #endif
         Vector2D box_pos = gas_data.pos_new + dir * (500 + rand() % 300);
         ::google::protobuf::RepeatedPtrField<::cs::MFAirDrop>* airdrops = nullptr;
         {