diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 726373b8..7bee3fd7 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -673,13 +673,17 @@ void Creature::RemoveBuffByEffectId(int buff_effect_id)
 
 void Creature::ClearBuffList()
 {
-    for (auto buff : buff_list_) {
-        list_del_init(&buff->effect_entry);
-        OnBuffRemove(*buff.get());
+    if (room->IsDestorying()) {
+        buff_list_.clear();
+    } else {
+        for (auto buff : buff_list_) {
+            list_del_init(&buff->effect_entry);
+            OnBuffRemove(*buff.get());
+        }
+        buff_list_.clear();
+        buff_effect_ = {};
+        RecalcBuffAttr();
     }
-    buff_list_.clear();
-    buff_effect_ = {};
-    RecalcBuffAttr();
 }
 
 void Creature::AddPassiveSkill(int skill_id)
@@ -3170,3 +3174,62 @@ Obstacle* Creature::InternalSummonObstacle(Buff* buff, const mt::MapThing* thing
     }
     return ob;
 }
+
+bool Creature::CanShot(bool try_reload)
+{
+    if (!GetCurrWeapon()->meta) {
+        return false;
+    }
+    if (downed) {
+        return false;
+    }
+    if (!GetCurrWeapon()->meta) {
+        return false;
+    }
+
+    if (HasBuffEffect(kBET_Jump) ||
+        HasBuffEffect(kBET_Fly)) {
+        return false;
+    }
+
+    if (GetAbility()->GetSwitchTimes(kDisableShotTimes) > 0) {
+        return false;
+    }
+
+    if (GetCurrWeapon()->weapon_idx != 0 &&
+        GetCurrWeapon()->ammo <= 0) {
+        if (try_reload) {
+            CheckLoadingBullet();
+        }
+        //AutoLoadingBullet();
+        return false;
+    }
+    if (action_type == AT_Reload) {
+        return false;
+    }
+    if (action_type == AT_Reload ||
+        action_type == AT_Rescue ||
+        action_type == AT_UseItem ||
+        action_type == AT_Relive) {
+        if (try_reload) {
+            CancelAction();
+        }
+    }
+
+    if (IsCar()) {
+        if (room->GetFrameNo() - last_shot_frameno_ > 0) {
+            if ((room->GetFrameNo() - last_shot_frameno_) * (1000 / SERVER_FRAME_RATE) <
+                GetCurrWeapon()->GetFireRate(this)
+                ) {
+                return false;
+            }
+        }
+    } else {
+        if ((room->GetFrameNo() - last_shot_frameno_) * (1000 / SERVER_FRAME_RATE) <
+            GetCurrWeapon()->GetFireRate(this)
+            ) {
+            return false;
+        }
+    }
+    return true;
+}
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index 7494039f..73f53fc5 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -347,6 +347,7 @@ class Creature : public MoveableEntity
     std::shared_ptr<std::set<int>> CalcReporterList(bool is_trace_bullet,
                                                     const mt::Equip* weapon_meta,
                                                     const mt::Equip* bullet_meta);
+    bool CanShot(bool try_reload);
 
 protected:
     virtual void OnBuffRemove(Buff& buff);