diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 2fb35b3..6ec1f08 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -204,16 +204,12 @@ void Bullet::ProcBomb()
     case IS_POSION_GAS_BOMB:
         {
             //毒气弹
-            a8::Vec2 bomb_pos = GetPos();
-            room->frame_event.AddSmoke(this, meta->i->id(), bomb_pos);
             ProcPosionGasBomb(delay_time);
         }
         break;
     case IS_MOLOTOR_COCKTAIL:
         {
             //燃烧瓶
-            a8::Vec2 bomb_pos = GetPos();
-            room->frame_event.AddSmoke(this, meta->i->id(), bomb_pos);
             ProcMolotorCocktailBomb(delay_time);
         }
         break;
@@ -374,10 +370,56 @@ void Bullet::ProcFragBomb(int delay_time)
 
 void Bullet::ProcPosionGasBomb(int delay_time)
 {
-
+    if (sender.Get()) {
+        PosionGasMiTask* task = new PosionGasMiTask();
+        task->room = room;
+        task->sender.Attach(sender.Get());
+        task->bomb_pos = GetPos();
+        task->gun_meta = gun_meta;
+        task->meta = meta;
+        room->xtimer.AddDeadLineTimerAndAttach
+            (std::max(1, (int)(delay_time / FRAME_RATE_MS)),
+             a8::XParams()
+             .SetSender(task),
+             [] (const a8::XParams& param)
+             {
+                 PosionGasMiTask* task = (PosionGasMiTask*)param.sender.GetUserData();
+                 task->Done();
+             },
+             &task->timer_attacher.timer_list_,
+             [] (const a8::XParams& param)
+             {
+                 PosionGasMiTask* task = (PosionGasMiTask*)param.sender.GetUserData();
+                 delete task;
+             }
+             );
+    }
 }
 
 void Bullet::ProcMolotorCocktailBomb(int delay_time)
 {
-
+    if (sender.Get()) {
+        MolotorCocktailMiTask* task = new MolotorCocktailMiTask();
+        task->room = room;
+        task->sender.Attach(sender.Get());
+        task->bomb_pos = GetPos();
+        task->gun_meta = gun_meta;
+        task->meta = meta;
+        room->xtimer.AddDeadLineTimerAndAttach
+            (std::max(1, (int)(delay_time / FRAME_RATE_MS)),
+             a8::XParams()
+             .SetSender(task),
+             [] (const a8::XParams& param)
+             {
+                 MolotorCocktailMiTask* task = (MolotorCocktailMiTask*)param.sender.GetUserData();
+                 task->Done();
+             },
+             &task->timer_attacher.timer_list_,
+             [] (const a8::XParams& param)
+             {
+                 MolotorCocktailMiTask* task = (MolotorCocktailMiTask*)param.sender.GetUserData();
+                 delete task;
+             }
+             );
+    }
 }
diff --git a/server/gameserver/molotor_cocktail_mitask.cc b/server/gameserver/molotor_cocktail_mitask.cc
index b684270..b79cde4 100644
--- a/server/gameserver/molotor_cocktail_mitask.cc
+++ b/server/gameserver/molotor_cocktail_mitask.cc
@@ -5,37 +5,6 @@
 #include "player.h"
 #include "metadata.h"
 
-void MolotorCocktailMiTask::Check()
-{
-    {
-        std::list<Player*> deleted_hums;
-        for (auto& hum : player_set) {
-            if (bomb_pos.Distance(hum->GetPos()) > gun_meta->i->bullet_rad() + hum->meta->i->radius()) {
-                hum->RemoveBuffByEffectId(kBET_HunLuan);
-                deleted_hums.push_back(hum);
-            }
-        }
-        for (auto& hum : deleted_hums) {
-            player_set.erase(hum);
-        }
-    }
-    room->TouchPlayerList
-        (a8::XParams(),
-         [this] (Player* hum, a8::XParams&) -> bool
-         {
-             if (bomb_pos.Distance(hum->GetPos()) < gun_meta->i->bullet_rad() + hum->meta->i->radius()) {
-                 if (!hum->HasBuffEffect(kBET_HunLuan)) {
-                     hum->AddBuff(nullptr, buff_meta, 1, nullptr);
-                     player_set.insert(hum);
-                 }
-             }
-             return true;
-         });
-}
-
 void MolotorCocktailMiTask::Done()
 {
-    for (auto& hum : player_set) {
-        hum->RemoveBuffByEffectId(kBET_HunLuan);
-    }
 }
diff --git a/server/gameserver/molotor_cocktail_mitask.h b/server/gameserver/molotor_cocktail_mitask.h
index a4ecdc1..526cbdc 100644
--- a/server/gameserver/molotor_cocktail_mitask.h
+++ b/server/gameserver/molotor_cocktail_mitask.h
@@ -15,10 +15,9 @@ class MolotorCocktailMiTask : public MicroTask
  public:
     Room* room = nullptr;
     a8::Vec2 bomb_pos;
-    std::set<Player*> player_set;
-    MetaData::Buff* buff_meta = nullptr;
+    CreatureWeakPtr sender;
     MetaData::Equip* gun_meta = nullptr;
+    MetaData::Equip* meta = nullptr;
 
-    void Check();
     void Done();
 };
diff --git a/server/gameserver/posiongas_mitask.cc b/server/gameserver/posiongas_mitask.cc
index 7e69042..eeb4f9b 100644
--- a/server/gameserver/posiongas_mitask.cc
+++ b/server/gameserver/posiongas_mitask.cc
@@ -5,37 +5,7 @@
 #include "player.h"
 #include "metadata.h"
 
-void PosionGasMiTask::Check()
-{
-    {
-        std::list<Player*> deleted_hums;
-        for (auto& hum : player_set) {
-            if (bomb_pos.Distance(hum->GetPos()) > gun_meta->i->bullet_rad() + hum->meta->i->radius()) {
-                hum->RemoveBuffByEffectId(kBET_HunLuan);
-                deleted_hums.push_back(hum);
-            }
-        }
-        for (auto& hum : deleted_hums) {
-            player_set.erase(hum);
-        }
-    }
-    room->TouchPlayerList
-        (a8::XParams(),
-         [this] (Player* hum, a8::XParams&) -> bool
-         {
-             if (bomb_pos.Distance(hum->GetPos()) < gun_meta->i->bullet_rad() + hum->meta->i->radius()) {
-                 if (!hum->HasBuffEffect(kBET_HunLuan)) {
-                     hum->AddBuff(nullptr, buff_meta, 1, nullptr);
-                     player_set.insert(hum);
-                 }
-             }
-             return true;
-         });
-}
-
 void PosionGasMiTask::Done()
 {
-    for (auto& hum : player_set) {
-        hum->RemoveBuffByEffectId(kBET_HunLuan);
-    }
+
 }
diff --git a/server/gameserver/posiongas_mitask.h b/server/gameserver/posiongas_mitask.h
index e771abe..705bc68 100644
--- a/server/gameserver/posiongas_mitask.h
+++ b/server/gameserver/posiongas_mitask.h
@@ -15,10 +15,9 @@ class PosionGasMiTask : public MicroTask
  public:
     Room* room = nullptr;
     a8::Vec2 bomb_pos;
-    std::set<Player*> player_set;
-    MetaData::Buff* buff_meta = nullptr;
+    CreatureWeakPtr sender;
     MetaData::Equip* gun_meta = nullptr;
+    MetaData::Equip* meta = nullptr;
 
-    void Check();
     void Done();
 };