diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 08e4457..5bf12c4 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -163,3 +163,50 @@ void Creature::OnBuffRemove(const Buff& buff)
 {
 
 }
+
+void Creature::RemoveBuffByEffectId(int buff_effect_id)
+{
+    Buff* buff = GetBuffByEffectId(buff_effect_id);
+    if (buff) {
+        RemoveBuffById(buff->meta->i->buff_id());
+    }
+}
+
+void Creature::ClearBuffList()
+{
+    for (auto itr = buff_list_.begin(); itr != buff_list_.end(); ++itr) {
+        if (buff_effect_[itr->meta->i->buff_effect()] == &(*itr)) {
+            buff_effect_[itr->meta->i->buff_effect()] = nullptr;
+        }
+        OnBuffRemove(*itr);
+    }
+    buff_list_.clear();
+    buff_effect_ = {};
+    buff_attr_abs_ = {};
+    buff_attr_rate_ = {};
+    RecalcBuffAttr();
+}
+
+float Creature::GetBuffAttrAbs(int attr_type)
+{
+    if (IsValidHumanAttr(attr_type)) {
+        return buff_attr_abs_[attr_type];
+    }
+    return 0;
+}
+
+float Creature::GetBuffAttrRate(int attr_type)
+{
+    if (IsValidHumanAttr(attr_type)) {
+        return buff_attr_rate_[attr_type];
+    }
+    return 0;
+}
+
+void Creature::FillBuffList(::google::protobuf::RepeatedPtrField<::cs::MFBuff>* pb_buff_list)
+{
+    for (auto& itr : buff_list_) {
+        auto buff = pb_buff_list->Add();
+        itr.FillMFBuff(buff);
+    }
+}
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index 9a523d8..7187152 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -3,6 +3,8 @@
 #include "moveableentity.h"
 #include "buff.h"
 
+#include "cs_proto.pb.h"
+
 class Creature : public MoveableEntity
 {
  public:
@@ -22,13 +24,19 @@ class Creature : public MoveableEntity
     void RemoveBuffById(int buff_id);
     virtual void SendDebugMsg(const std::string& debug_msg);
     void RecalcBuffAttr();
+    void RemoveBuffByEffectId(int buff_effect_id);
+    void ClearBuffList();
+    float GetBuffAttrAbs(int attr_id);
+    float GetBuffAttrRate(int attr_id);
+    void FillBuffList(::google::protobuf::RepeatedPtrField<::cs::MFBuff>* pb_buff_list);
+    void FillItemList(::google::protobuf::RepeatedPtrField<::cs::MFPair>* pb_item_list);
 
 private:
 
     virtual void AddBuffPostProc(Creature* caster, Buff* buff);
     virtual void OnBuffRemove(const Buff& buff);
 
- protected:
+private:
     std::array<float, kHAT_End> buff_attr_abs_ = {};
     std::array<float, kHAT_End> buff_attr_rate_ = {};
     std::array<Buff*, kBET_End> buff_effect_ = {};
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 3809c33..8eb54dc 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -179,7 +179,7 @@ float Human::GetSpeed()
             return std::max(1, meta->i->reload_speed());
         }
         float speed = meta->i->move_speed();
-        speed = (speed + buff_attr_abs_[kHAT_Speed]) * (1 + buff_attr_rate_[kHAT_Speed]);
+        speed = (speed + GetBuffAttrAbs(kHAT_Speed)) * (1 + GetBuffAttrRate(kHAT_Speed));
         return std::max(speed, 1.0f);
     }
 }
@@ -413,6 +413,15 @@ long long Human::GetDeadFrameNo(Room* room)
     return dead_frameno;
 }
 
+void Human::FillItemList(::google::protobuf::RepeatedPtrField<::cs::MFPair>* pb_item_list)
+{
+    for (auto& pair : items_) {
+        auto p = pb_item_list->Add();
+        p->set_key(pair.first);
+        p->set_value(pair.second);
+    }
+}
+
 long long Human::GetRealDeadFrameNo(Room* room)
 {
     return real_dead_frameno;
@@ -1735,23 +1744,6 @@ void Human::FillBodyState(::google::protobuf::RepeatedPtrField<::cs::MFBodyState
     }
 }
 
-void Human::FillBuffList(::google::protobuf::RepeatedPtrField<::cs::MFBuff>* pb_buff_list)
-{
-    for (auto& itr : buff_list_) {
-        auto buff = pb_buff_list->Add();
-        itr.FillMFBuff(buff);
-    }
-}
-
-void Human::FillItemList(::google::protobuf::RepeatedPtrField<::cs::MFPair>* pb_item_list)
-{
-    for (auto& pair : items_) {
-        auto p = pb_item_list->Add();
-        p->set_key(pair.first);
-        p->set_value(pair.second);
-    }
-}
-
 void Human::SummonHero(int heroid)
 {
     MetaData::Player* hero_meta = MetaMgr::Instance()->GetPlayer(heroid);
@@ -3076,29 +3068,6 @@ void Human::TriggerBuff(std::set<Entity*>& target_list, BuffTriggerType_e trigge
     }
 }
 
-void Human::RemoveBuffByEffectId(int buff_effect_id)
-{
-    Buff* buff = GetBuffByEffectId(buff_effect_id);
-    if (buff) {
-        RemoveBuffById(buff->meta->i->buff_id());
-    }
-}
-
-void Human::ClearBuffList()
-{
-    for (auto itr = buff_list_.begin(); itr != buff_list_.end(); ++itr) {
-        if (buff_effect_[itr->meta->i->buff_effect()] == &(*itr)) {
-            buff_effect_[itr->meta->i->buff_effect()] = nullptr;
-        }
-        OnBuffRemove(*itr);
-    }
-    buff_list_.clear();
-    buff_effect_ = {};
-    buff_attr_abs_ = {};
-    buff_attr_rate_ = {};
-    RecalcBuffAttr();
-}
-
 void Human::AddBuffPostProc(Creature* caster, Buff* buff)
 {
     room->frame_event.AddBuff(this, buff);
@@ -3306,22 +3275,6 @@ void Human::DecItem(int item_id, int item_num)
     }
 }
 
-float Human::GetBuffAttrAbs(int attr_type)
-{
-    if (IsValidHumanAttr(attr_type)) {
-        return buff_attr_abs_[attr_type];
-    }
-    return 0;
-}
-
-float Human::GetBuffAttrRate(int attr_type)
-{
-    if (IsValidHumanAttr(attr_type)) {
-        return buff_attr_rate_[attr_type];
-    }
-    return 0;
-}
-
 float Human::GetAttrAbs(int attr_id)
 {
     float attr_abs_val = GetBuffAttrAbs(attr_id);
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index af89a5d..db03ca8 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "creature.h"
-#include "cs_proto.pb.h"
 #include "GGListener.h"
 
 namespace MetaData
@@ -170,6 +169,7 @@ class Human : public Creature
     virtual void GetAabbBox(AabbCollider& aabb_box) override;
     virtual bool IsDead(Room* room) override;
     virtual long long GetDeadFrameNo(Room* room) override;
+    void FillItemList(::google::protobuf::RepeatedPtrField<::cs::MFPair>* pb_item_list);
     long long GetRealDeadFrameNo(Room* room);
     void FillMFTeamData(cs::MFTeamData* team_data, bool is_game_over);
     void Shot(a8::Vec2& target_dir, bool& shot_ok);
@@ -224,8 +224,6 @@ class Human : public Creature
     int GetVolume(int slot_id);
     void RecoverHp(int inc_hp);
     void FillBodyState(::google::protobuf::RepeatedPtrField<::cs::MFBodyState>* states);
-    void FillBuffList(::google::protobuf::RepeatedPtrField<::cs::MFBuff>* pb_buff_list);
-    void FillItemList(::google::protobuf::RepeatedPtrField<::cs::MFPair>* pb_item_list);
     void SummonHero(int heroid);
     void AddObserver(Human* observer);
     void RemoveObserver(Human* observer);
@@ -259,9 +257,6 @@ class Human : public Creature
     float GetSkillAtkAdd(int skill_id);
     void TriggerOneObjectBuff(Entity* target, BuffTriggerType_e trigger_type);
     void TriggerBuff(std::set<Entity*>& target_list, BuffTriggerType_e trigger_type);
-    void RemoveBuffByEffectId(int buff_effect_id);
-    void ClearBuffList();
-    virtual void AddBuffPostProc(Creature* caster, Buff* buff) override;
     int GetLevel() {return level_;};
     int GetExp() {return exp_;};
     void OnAttack() {};
@@ -269,8 +264,6 @@ class Human : public Creature
     int GetItemNum(int item_id);
     void AddItem(int item_id, int item_num);
     void DecItem(int item_id, int item_num);
-    float GetBuffAttrAbs(int attr_id);
-    float GetBuffAttrRate(int attr_id);
     float GetAttrAbs(int attr_id);
     float GetAttrRate(int attr_id);
     bool IsPlayer() const;
@@ -341,6 +334,7 @@ private:
     void NextReload(int prev_weapon_id, int prev_weapon_idx);
     void DoGetOnWithLoot(Loot* loot_entity);
     void DoGetOnWithCar(Car* car);
+    virtual void AddBuffPostProc(Creature* caster, Buff* buff) override;
     virtual void OnBuffRemove(const Buff& buff) override;
 
 protected: