diff --git a/server/gameserver/obstacle.cc b/server/gameserver/obstacle.cc
index 0103c8a..f1a86d8 100644
--- a/server/gameserver/obstacle.cc
+++ b/server/gameserver/obstacle.cc
@@ -127,6 +127,16 @@ ColliderComponent* Obstacle::GetBoxBound()
     return nullptr;
 }
 
+void Obstacle::GetAabbBox(AabbCollider& aabb_box)
+{
+
+}
+
+void Obstacle::GetCircleBox(CircleCollider& circle_box)
+{
+
+}
+
 void Obstacle::Explosion(Bullet* bullet)
 {
     float old_rad = self_collider_->rad;
diff --git a/server/gameserver/obstacle.h b/server/gameserver/obstacle.h
index 13f4a7b..c7e234f 100644
--- a/server/gameserver/obstacle.h
+++ b/server/gameserver/obstacle.h
@@ -44,6 +44,8 @@ class Obstacle : public Entity
     virtual void FillMFObjectPart(cs::MFObjectPart* part_data) override;
     virtual void FillMFObjectFull(cs::MFObjectFull* full_data) override;
     virtual ColliderComponent* GetBoxBound() override;
+    virtual void GetAabbBox(AabbCollider& aabb_box) override;
+    virtual void GetCircleBox(CircleCollider& circle_box) override;
     void Explosion(Bullet* bullet);
 
 private: