diff --git a/server/gameserver/aicomponent.h b/server/gameserver/aicomponent.h
index a2f0275..b5eb14d 100644
--- a/server/gameserver/aicomponent.h
+++ b/server/gameserver/aicomponent.h
@@ -1,10 +1,10 @@
 #pragma once
 
-class RoomEntity;
+class MoveableEntity;
 class AIComponent
 {
  public:
-    RoomEntity* owner = nullptr;
+    MoveableEntity* owner = nullptr;
 
     virtual ~AIComponent();
     virtual void Update(int delta_time);
diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 4bc06bb..626300c 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -8,7 +8,7 @@
 #include "player.h"
 #include "app.h"
 
-Bullet::Bullet():RoomEntity()
+Bullet::Bullet():MoveableEntity()
 {
     entity_type = ET_Bullet;
     ++App::Instance()->perf.entity_num[ET_Bullet];
diff --git a/server/gameserver/bullet.h b/server/gameserver/bullet.h
index e81094d..b29e9e7 100644
--- a/server/gameserver/bullet.h
+++ b/server/gameserver/bullet.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "roomentity.h"
+#include "moveableentity.h"
 
 namespace MetaData
 {
@@ -13,7 +13,7 @@ class Human;
 class Obstacle;
 class CircleCollider;
 class MovementComponent;
-class Bullet : public RoomEntity
+class Bullet : public MoveableEntity
 {
  public:
     int gun_lv = 0;
diff --git a/server/gameserver/entity.h b/server/gameserver/entity.h
index 261070f..ccb5c9d 100644
--- a/server/gameserver/entity.h
+++ b/server/gameserver/entity.h
@@ -20,7 +20,6 @@ class Entity
     int entity_uniid = 0;
     EntityType_e entity_type = ET_None;
     EntitySubType_e entity_subtype = EST_None;
-    int updated_times = 0;
 
     bool is_permanent = false;
     MapService* permanent_map_service = nullptr;
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 49ca962..e89043f 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -28,7 +28,7 @@
 const int kReviveTimeAdd = 12;
 const int kSkinNum = 4;
 
-Human::Human():RoomEntity()
+Human::Human():MoveableEntity()
 {
     default_weapon.weapon_idx = 0;
     default_weapon.weapon_id = 12101;
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index af6cc93..d780871 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "roomentity.h"
+#include "moveableentity.h"
 #include "cs_proto.pb.h"
 #include "GGListener.h"
 
@@ -26,7 +26,7 @@ class AabbCollider;
 class Obstacle;
 class Loot;
 class Buff;
-class Human : public RoomEntity
+class Human : public MoveableEntity
 {
  public:
     int socket_handle = 0;
diff --git a/server/gameserver/moveableentity.cc b/server/gameserver/moveableentity.cc
new file mode 100644
index 0000000..e69de29
diff --git a/server/gameserver/moveableentity.h b/server/gameserver/moveableentity.h
new file mode 100644
index 0000000..b6562c5
--- /dev/null
+++ b/server/gameserver/moveableentity.h
@@ -0,0 +1,10 @@
+#pragma once
+
+#include "roomentity.h"
+
+class MoveableEntity : public RoomEntity
+{
+ public:
+    int updated_times = 0;
+
+};
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index e5fb9f4..49214b4 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -1185,7 +1185,8 @@ void Room::AddObjectLater(RoomEntity* entity)
                        {
                            RoomEntity* entity = (RoomEntity*)param.sender.GetUserData();
                            if (entity->entity_type == ET_Bullet) {
-                               entity->room->moveable_hash_[entity->entity_uniid] = entity;
+                               MoveableEntity* moveableentity = (MoveableEntity*)entity;
+                               entity->room->moveable_hash_[entity->entity_uniid] = moveableentity;
                            }
                            entity->room->uniid_hash_[entity->entity_uniid] = entity;
                            entity->room->later_add_hash_.erase(entity->entity_uniid);
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index 1568af8..1a0beec 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -26,6 +26,7 @@ struct timer_list;
 struct xtimer_list;
 class Entity;
 class RoomEntity;
+class MoveableEntity;
 class Obstacle;
 class Bullet;
 class Human;
@@ -156,7 +157,7 @@ private:
     std::set<int> refreshed_robot_set_;
     std::map<int, std::set<Human*>> team_hash_;
     std::map<std::string, Player*> accountid_hash_;
-    std::map<int, Entity*> moveable_hash_;
+    std::map<int, MoveableEntity*> moveable_hash_;
     std::map<int, Entity*> uniid_hash_;
     std::map<int, Entity*> later_add_hash_;
     std::map<int, Human*> human_hash_;