diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index e9c290d..67172d1 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -50,13 +50,6 @@ void Bullet::RecalcSelfCollider()
     self_collider_->rad = gun_meta->i->bullet_rad();
 }
 
-#ifdef RAY_DETECTION
-void Bullet::RayDetection()
-{
-
-}
-#endif
-
 void Bullet::OnHit(std::set<Entity*>& objects)
 {
     for (auto& target : objects) {
diff --git a/server/gameserver/bullet.h b/server/gameserver/bullet.h
index 05caaa4..ebb4cfd 100644
--- a/server/gameserver/bullet.h
+++ b/server/gameserver/bullet.h
@@ -31,7 +31,6 @@ class Bullet : public Entity
     virtual void Initialize() override;
     virtual void Update(int delta_time) override;
     void RecalcSelfCollider();
-    void RayDetection();
     void ClearRayData();
 
  private:
diff --git a/server/gameserver/movement.cc b/server/gameserver/movement.cc
index eee649d..8ad82d2 100644
--- a/server/gameserver/movement.cc
+++ b/server/gameserver/movement.cc
@@ -2,6 +2,11 @@
 
 #include "movement.h"
 
+void MovementComponent::RayDetection()
+{
+
+}
+
 void MovementComponent::GetCollisionObjects(std::set<Entity*>& objects)
 {
 
diff --git a/server/gameserver/movement.h b/server/gameserver/movement.h
index c5c04d0..abeb2f3 100644
--- a/server/gameserver/movement.h
+++ b/server/gameserver/movement.h
@@ -9,6 +9,7 @@ class MovementComponent
     Vector2D target_point;
     std::set<Entity*> detection_objects;
 
+    void RayDetection();
     void GetCollisionObjects(std::set<Entity*>& objects);
     bool TestCollision();
 };
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 4a55c2e..494f04f 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -21,6 +21,7 @@
 #include "roommgr.h"
 #include "app.h"
 #include "hero.h"
+#include "movement.h"
 
 const int ROOM_MAX_PLAYER_NUM = 50;
 
@@ -605,7 +606,7 @@ void Room::CreateBullet(Human* hum, Weapon* weapon,
     AddObjectLater(bullet);
     grid_service.AddBullet(bullet);
 #ifdef RAY_DETECTION
-    bullet->RayDetection();
+    bullet->movement->RayDetection();
 #endif
 }