diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 14a5033..cd2fcf3 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -3864,3 +3864,28 @@ void Human::ProcUseItem(int item_id)
         DecItem(item_id, 1);
     }
 }
+
+Weapon* Human::TakeWeapon(MetaData::Equip* equip_meta)
+{
+    Weapon* weapon = nullptr;
+    if (equip_meta->i->equip_type() == EQUIP_TYPE_WEAPON) {
+        if (equip_meta->i->equip_subtype() == 1) {
+        } else {
+            for (int i = GUN_SLOT1; i <= GUN_SLOT2; ++i) {
+                if (weapons[i].weapon_id == 0) {
+                    weapon = &weapons[i];
+                    weapon->weapon_idx = i;
+                } else if (weapons[i].meta->i->equip_subtype() ==
+                           equip_meta->i->equip_subtype()){
+                    if (equip_meta->i->quality() > weapons[i].meta->i->quality()) {
+                        weapon = &weapons[i];
+                        weapon->weapon_idx = i;
+                    } else {
+                        weapon = nullptr;
+                    }
+                }
+            }
+        }
+    }
+    return weapon;
+}
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index ecbf752..ac42234 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -275,6 +275,7 @@ private:
     virtual void OnBuffRemove(Buff& buff) override;
     virtual void DoSkillPreProc(int skill_id, int target_id, const a8::Vec2& target_pos) override;
     virtual void DoSkillPostProc(bool used, int skill_id, int target_id, const a8::Vec2& target_pos) override;
+    Weapon* TakeWeapon(MetaData::Equip* equip_meta);
 
 protected:
     int level_ = 0;
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index efb3531..03b7f9e 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -546,8 +546,13 @@ void Player::LootInteraction(Loot* entity)
                 need_sync_active_player = true;
                 SyncAroundPlayers(__FILE__, __LINE__, __func__);
             } else {
+                if (FreezeOperate()) {
+                    return;
+                }
                 Weapon* weapon = nullptr;
                 bool switch_gun = false;
+                #if 0
+                #else
                 if (weapons[GUN_SLOT1].weapon_id == 0) {
                     weapon = &weapons[GUN_SLOT1];
                     weapon->weapon_idx = GUN_SLOT1;
@@ -561,6 +566,7 @@ void Player::LootInteraction(Loot* entity)
                         switch_gun = true;
                     }
                 }
+                #endif
                 if (!weapon) {
                     /*
                     cs::SMPickup notifymsg;
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 6b47ac1..d72bfdb 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -1755,6 +1755,7 @@ void Room::AirDrop(int appear_time, int box_id, int airdrop_id)
                           param.param2.GetDouble(),
                           param.param3.GetDouble()
                           );
+                     obstacle->PushCollisionObjects();
                      obstacle->is_treasure_box = true;
                      if (room->GetRoomMode() == kZombieMode) {
                          obstacle->is_terminator_airdrop_box =
diff --git a/server/gameserver/roomobstacle.cc b/server/gameserver/roomobstacle.cc
index f266959..f938d16 100644
--- a/server/gameserver/roomobstacle.cc
+++ b/server/gameserver/roomobstacle.cc
@@ -488,7 +488,9 @@ void RoomObstacle::SummonAirDropBox(int box_id)
          GetPos().x,
          GetPos().y
          );
-
+    if (obstacle) {
+        obstacle->PushCollisionObjects();
+    }
 }
 
 Entity* RoomObstacle::GetRealObject(Room* room)
@@ -606,3 +608,19 @@ void RoomObstacle::Destory()
     #endif
     DetachFromMaster();
 }
+
+void RoomObstacle::PushCollisionObjects()
+{
+    std::set<GridCell*> grid_list;
+    room->grid_service->GetAllCellsByXy(room, GetPos().x, GetPos().y, grid_list);
+    room->grid_service->TraverseCreatures
+        (
+         room->GetRoomIdx(),
+         grid_list,
+         [this] (Creature* c, bool& stop)
+         {
+             if (TestCollision(room, c)) {
+                 c->MustBeAddBuff(c, 8003);
+             }
+         });
+}
diff --git a/server/gameserver/roomobstacle.h b/server/gameserver/roomobstacle.h
index 20863ad..1b5e7e4 100644
--- a/server/gameserver/roomobstacle.h
+++ b/server/gameserver/roomobstacle.h
@@ -34,6 +34,7 @@ class RoomObstacle : public Obstacle
     RoomObstacleWeakPtr AllocWeakPtr();
     RoomObstacleWeakPtr& GetWeakPtrRef();
     void Destory();
+    void PushCollisionObjects();
 
 private:
     void SpecExplosion();