diff --git a/server/gameserver/buff.cc b/server/gameserver/buff.cc
index d726838..471c73e 100644
--- a/server/gameserver/buff.cc
+++ b/server/gameserver/buff.cc
@@ -37,7 +37,36 @@ void Buff::ProcIntervalAddBuff(Creature* caster)
 
 void Buff::ProcBatchAddBuff(Creature* caster)
 {
-
+    for (auto& tuple : meta->batch_add_list) {
+        int rand_space = std::get<0>(tuple);
+        const auto& items = std::get<1>(tuple);
+        if (items.empty()) {
+            abort();
+        }
+        int rnd = rand();
+        if (rand_space == -1)  {
+            //概率
+            rnd = rnd % 10000;
+            if (rnd < std::get<1>(items[0])){
+                MetaData::Buff* buff_meta = MetaMgr::Instance()->GetBuff(std::get<0>(items[0]));
+                if (buff_meta) {
+                    owner->AddBuff(caster, buff_meta, 1, nullptr);
+                }
+            }
+        } else {
+            //权重
+            rnd = rnd % rand_space;
+            for (const auto& item : items) {
+                if (rnd <= std::get<1>(item)) {
+                    MetaData::Buff* buff_meta = MetaMgr::Instance()->GetBuff(std::get<0>(item));
+                    if (buff_meta) {
+                        owner->AddBuff(caster, buff_meta, 1, nullptr);
+                    }
+                    break;
+                }
+            }
+        }
+    }
 }
 
 void Buff::InternalTimerAddBuff(Creature* caster)
diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 47379db..99050e4 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -373,6 +373,18 @@ void Bullet::ProcFragBomb(int delay_time)
 void Bullet::ProcPosionGasBomb(int delay_time)
 {
     if (sender.Get()) {
+        #if 1
+        a8::Vec2 old_buff_vec2_param1 = sender.Get()->buff_vec2_param1;
+        sender.Get()->buff_vec2_param1 = GetPos();
+        MetaData::Buff * buff_meta = MetaMgr::Instance()->GetBuff(gun_meta->i->buffid());
+        if (buff_meta) {
+            sender.Get()->AddBuff(sender.Get(),
+                                  buff_meta,
+                                  1
+                                  );
+        }
+        sender.Get()->buff_vec2_param1 = old_buff_vec2_param1;
+        #else
         PosionGasMiTask* task = new PosionGasMiTask();
         task->room = room;
         task->sender.Attach(sender.Get());
@@ -398,6 +410,7 @@ void Bullet::ProcPosionGasBomb(int delay_time)
              },
              &room->timer_attacher.timer_list_
              );
+        #endif
     }
 }
 
diff --git a/server/gameserver/constant.h b/server/gameserver/constant.h
index 077ff4a..14d622d 100755
--- a/server/gameserver/constant.h
+++ b/server/gameserver/constant.h
@@ -384,6 +384,7 @@ enum ObstacleType_e
     kObstacleSelfExplosion = 1,
     kObstacleMine = 2,
     kObstacleTrap = 3,
+    kObstaclePosionGas = 4,
 };
 
 const char* const PROJ_NAME_FMT = "game%d_gameserver";
diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index e0eab1c..6da8f6c 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -21,6 +21,8 @@ void InternalShot(Creature* c,
 {
     if (weapon_meta->i->_inventory_slot() == IS_TRAP ||
         weapon_meta->i->_inventory_slot() == IS_MINE) {
+        a8::Vec2 old_buff_vec2_param1 = c->buff_vec2_param1;
+        c->buff_vec2_param1 = c->GetPos();
         MetaData::Buff * buff_meta = MetaMgr::Instance()->GetBuff(bullet_meta->i->buffid());
         if (buff_meta) {
             c->AddBuff(c,
@@ -28,6 +30,7 @@ void InternalShot(Creature* c,
                        1
                        );
         }
+        c->buff_vec2_param1 = old_buff_vec2_param1;
         return;
     }
     for (auto& tuple : weapon_meta->bullet_born_offset) {
@@ -843,6 +846,7 @@ void Creature::ProcBuffEffect(Creature* caster, Buff* buff)
     case kBET_SummonObstacle:
         {
             a8::Vec2 target_pos = caster->GetPos() + caster->skill_dir_ * caster->skill_distance_;
+            target_pos = buff_vec2_param1;
             SummonObstacle(buff->meta->param1, target_pos);
         }
         break;
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index b9f17ca..1c4d5c3 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -47,6 +47,7 @@ class Creature : public MoveableEntity
     long long poisoning_time = 0;
 
     Weapon car_weapon;
+    a8::Vec2 buff_vec2_param1;
 
     bool need_sync_active_player = false;
     std::function<void ()> on_loading_bullet;
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index d6fe8f5..81132a8 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -836,6 +836,8 @@ void Human::BeKill(int killer_id, const std::string& killer_name, int weapon_id)
                 RemoveBuffByEffectId(kBET_Camouflage);
             }
             ClearLordMode();
+            room->frame_event.AddDead(this,
+                                      0);
 #ifdef DEBUG
             room->CheckPartObjects();
 #endif
diff --git a/server/gameserver/metadata.cc b/server/gameserver/metadata.cc
index 09a6233..dfbb4d4 100644
--- a/server/gameserver/metadata.cc
+++ b/server/gameserver/metadata.cc
@@ -555,6 +555,65 @@ namespace MetaData
                 }
             }
         }
+        if (i->buff_effect() == kBET_BatchAddBuff) {
+            std::vector<std::string> strings1;
+            a8::Split(i->buff_param1(), strings1, '|');
+            for (auto& str1 : strings1) {
+                std::vector<std::string> strings2;
+                a8::Split(str1, strings2, '|');
+                for (auto& str2 : strings2) {
+                    if (str2.size() < 1) {
+                        abort();
+                    }
+                    auto& p = a8::FastAppend(batch_add_list);
+                    if (str2[0] != '!') {
+                        //概率
+                        std::vector<std::string> strings3;
+                        a8::Split(str2, strings3, ':');
+                        if (strings3.size() != 2) {
+                            abort();
+                        }
+                        if (a8::XValue(strings3[1]).GetInt() <= 0) {
+                            abort();
+                        }
+                        std::get<0>(p) = -1;
+                        std::get<1>(p).push_back
+                            (
+                             std::make_tuple(a8::XValue(strings3[0]),
+                                             a8::XValue(strings3[1]))
+                             );
+                    } else {
+                        //权重
+                        std::vector<std::string> strings3;
+                        a8::Split(str2, strings3, '$');
+                        int rand_space = 0;
+                        for (const std::string& str3 : strings3) {
+                            std::vector<std::string> strings4;
+                            a8::Split(str3, strings4, ':');
+                            if (strings4.size() != 2) {
+                                abort();
+                            }
+                            std::string tmp_str = strings4[0];
+                            a8::ReplaceString(tmp_str, "!", "");
+                            int buff_id = a8::XValue(tmp_str);
+                            int weight = a8::XValue(strings4[1]);
+                            if (weight <= 0) {
+                                abort();
+                            }
+
+                            rand_space += weight;
+                            std::get<1>(p).push_back
+                                (
+                                 std::make_tuple(buff_id,
+                                                 rand_space)
+                                 );
+                        }
+                        std::get<0>(p) = rand_space;
+                    }
+                }
+                int i = 0;
+            }
+        }
     }
 
     bool Buff::EffectCanStack()
diff --git a/server/gameserver/metadata.h b/server/gameserver/metadata.h
index 3b3ec25..85bb08f 100755
--- a/server/gameserver/metadata.h
+++ b/server/gameserver/metadata.h
@@ -170,6 +170,7 @@ namespace MetaData
         float param3 = 0.0f;
         float param4 = 0.0f;
         std::vector<int> param2_int_list;
+        std::vector<std::tuple<int, std::vector<std::tuple<int, int>>>> batch_add_list;
         std::vector<std::tuple<int, std::vector<int>>> post_remove_action;
         std::set<int> immune_buffeffect;
     };
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 0a46682..456d1f2 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -2253,7 +2253,7 @@ ObstacleData* Room::GetPermanentObstacleData(int obstacle_uniid)
 
 long long Room::GetGasInactiveTime()
 {
-#if DEBUG
+#ifdef DEBUG
     return 5;
 #endif
     if (room_mode_ == kZombieMode) {
diff --git a/server/gameserver/roomobstacle.cc b/server/gameserver/roomobstacle.cc
index ac060b0..ed8b001 100644
--- a/server/gameserver/roomobstacle.cc
+++ b/server/gameserver/roomobstacle.cc
@@ -330,6 +330,11 @@ void RoomObstacle::Active()
             ActiveTrap();
         }
         break;
+    case kObstaclePosionGas:
+        {
+            ActivePosionGas();
+        }
+        break;
     default:
         break;
     }
@@ -393,3 +398,30 @@ void RoomObstacle::ActiveTrap()
          &xtimer_attacher.timer_list_
          );
 }
+
+void RoomObstacle::ActivePosionGas()
+{
+    room->xtimer.AddDeadLineTimerAndAttach
+        (
+         meta->i->time() / FRAME_RATE_MS,
+         a8::XParams()
+         .SetSender(this),
+         [] (const a8::XParams& param)
+         {
+             RoomObstacle* obstacle = (RoomObstacle*)param.sender.GetUserData();
+             obstacle->room->xtimer.AddRepeatTimerAndAttach
+                 (
+                  obstacle->meta->i->explosion_interval() / FRAME_RATE_MS,
+                  a8::XParams()
+                  .SetSender(obstacle),
+                  [] (const a8::XParams& param)
+                  {
+                      RoomObstacle* obstacle = (RoomObstacle*)param.sender.GetUserData();
+                      obstacle->SpecExplosion();
+                  },
+                  &obstacle->xtimer_attacher.timer_list_
+                  );
+         },
+         &xtimer_attacher.timer_list_
+         );
+}
diff --git a/server/gameserver/roomobstacle.h b/server/gameserver/roomobstacle.h
index 613100a..78600cd 100644
--- a/server/gameserver/roomobstacle.h
+++ b/server/gameserver/roomobstacle.h
@@ -28,6 +28,7 @@ private:
     void ActiveSelfExplosion();
     void ActiveMine();
     void ActiveTrap();
+    void ActivePosionGas();
 
 protected:
     bool temp_through_ = false;
diff --git a/server/tools/protobuild/cs_proto.proto b/server/tools/protobuild/cs_proto.proto
index 6e25a9c..c4a2ff8 100755
--- a/server/tools/protobuild/cs_proto.proto
+++ b/server/tools/protobuild/cs_proto.proto
@@ -1038,8 +1038,8 @@ message SMUpdate
     repeated MFPropertyChg chged_property_list = 31; //property变更列表
     repeated MFPlaySkill play_skill_list = 32; //播放技能
 
-    //一下字段只有僵尸模式才有效
     repeated MFTuple dead_alive_objs = 42; //玩家values[0]:objid values[1]:多少毫秒后复活 values[2]: 0:死亡 1:复活
+    //一下字段只有僵尸模式才有效
     repeated MFPosition object_positions = 43; //对象坐标信息,如果对象已经在part_objects则可能不发,这时客户端可以读取part_objects里的左边更新小地图
     optional int32 game_left_time = 45; //游戏剩余时间(毫秒, 战斗开始后字段才有意义)
 }