diff --git a/server/gameserver/constant.h b/server/gameserver/constant.h
index 6eb6498..62b8e04 100644
--- a/server/gameserver/constant.h
+++ b/server/gameserver/constant.h
@@ -512,3 +512,4 @@ const long long SPEC_MAP_OBJECT_FLAGS = A8_DEFINE_RANGE_BIT(long long, kCollider
 
 const float DEFAULT_FLY_DISTANCE = 5.0f;
 
+const int MAP_BLOCK_START_ID = 1000000000;
diff --git a/server/gameserver/constant_export.h b/server/gameserver/constant_export.h
index 71cfe37..24beb56 100644
--- a/server/gameserver/constant_export.h
+++ b/server/gameserver/constant_export.h
@@ -106,7 +106,7 @@ enum EntityType_e
 
    ET_Bullet = 20,
 
-   //ET_Android = 30,
+   ET_MapBlock = 28,
    ET_Dummy = 29,
    ET_Unuse = 30,
    ET_MAX
diff --git a/server/gameserver/dummyentity.cc b/server/gameserver/dummyentity.cc
index 11bc9fc..97210fb 100644
--- a/server/gameserver/dummyentity.cc
+++ b/server/gameserver/dummyentity.cc
@@ -44,3 +44,70 @@ void DummyEntity::Initialize()
         }
     }
 }
+
+void DummyEntity::ScatterObstacle(MapInstance* map_instance)
+{
+    if (blocks) {
+        for (auto& obj : *blocks) {
+            switch (obj.shape()) {
+            case 1:
+                {
+                }
+                break;
+            case 2:
+                {
+                }
+                break;
+            default:
+                {
+                }
+                break;
+            }
+        }
+    }
+}
+#pragma once
+
+class Entity;
+class Human;
+class Bullet;
+class Room;
+class Creature;
+
+class GridCell
+{
+public:
+
+    GridCell();
+    void ClearRoomData(Room* room);
+
+    void TraverseHumanList(std::function<void (Human*, bool&)> func,
+                        int room_idx,
+                        bool& stop);
+    void TraverseCreatures(std::function<void (Creature*, bool&)>& func,
+                        int room_idx,
+                        bool& stop);
+
+    void AddCreature(Creature* c);
+    void RemoveCreature(Creature* c);
+    bool CreatureExists(Creature* c);
+    void AddBullet(Bullet* bullet);
+    void RemoveBullet(Bullet* bullet);
+    void AddPermanentEntity(Entity* entity);
+    void AddRoomEntity(Room* room, Entity* entity);
+    void RemoveRoomEntity(Room* room, Entity* entity);
+    bool EntityExists(Room* room, Entity* Entity);
+    void TraverseLayer0EntityList(std::function<void (Entity*, bool&)>& func,
+                               bool& stop);
+    void TraverseLayer1EntityList(std::function<void (Entity*, bool&)>& func,
+                               int room_idx,
+                               bool& stop);
+    void TraverseAllLayerEntityList(std::function<void (Entity*, bool&)>& func,
+                                 int room_idx,
+                                 bool& stop);
+
+private:
+    std::vector<std::set<Entity*>> entitys_;
+    std::vector<std::set<Bullet*>> bullets_;
+    std::vector<std::set<Creature*>> creatures_;
+};
diff --git a/server/gameserver/dummyentity.h b/server/gameserver/dummyentity.h
index 170b622..6966868 100644
--- a/server/gameserver/dummyentity.h
+++ b/server/gameserver/dummyentity.h
@@ -7,6 +7,7 @@ namespace metatable
     class MapBlockJson;
 }
 
+class MapInstance;
 class DummyEntity : public Entity
 {
  public:
@@ -14,4 +15,5 @@ class DummyEntity : public Entity
     std::list<metatable::MapBlockJson>* blocks = nullptr;
 
     virtual void Initialize() override;
+    void ScatterObstacle(MapInstance* map_instance);
 };
diff --git a/server/gameserver/mapblock.cc b/server/gameserver/mapblock.cc
new file mode 100644
index 0000000..bfa9ead
--- /dev/null
+++ b/server/gameserver/mapblock.cc
@@ -0,0 +1,78 @@
+#include "precompile.h"
+
+#include "mapblock.h"
+
+MapBlock::MapBlock()
+{
+
+}
+
+MapBlock::~MapBlock()
+{
+
+}
+
+void MapBlock::Initialize()
+{
+
+}
+
+void MapBlock::RecalcSelfCollider()
+{
+
+}
+
+void MapBlock::FillMFObjectPart(Room* room, Human* hum, cs::MFObjectPart* part_data)
+{
+
+}
+
+void MapBlock::FillMFObjectFull(Room* room, Human* hum, cs::MFObjectFull* full_data)
+{
+
+}
+
+void MapBlock::GetAabbBox(AabbCollider& aabb_box)
+{
+
+}
+
+void MapBlock::GetCircleBox(CircleCollider& circle_box)
+{
+
+}
+
+bool MapBlock::IsDead(Room* room)
+{
+    return false;
+}
+
+long long MapBlock::GetDeadFrameNo(Room* room)
+{
+    return 0;
+}
+
+void MapBlock::OnPreCollision(Room* room)
+{
+
+}
+
+void MapBlock::OnBulletHit(Bullet* bullet)
+{
+
+}
+
+void MapBlock::OnExplosionHit(Explosion* explosion)
+{
+
+}
+
+bool MapBlock::Attackable(Room* room)
+{
+    return false;
+}
+
+bool MapBlock::ReceiveExplosionDmg(Explosion* explosion)
+{
+    return false;
+}
diff --git a/server/gameserver/mapblock.h b/server/gameserver/mapblock.h
new file mode 100644
index 0000000..eacfa48
--- /dev/null
+++ b/server/gameserver/mapblock.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include "entity.h"
+
+namespace MetaData
+{
+    struct MapThing;
+}
+
+class Room;
+class CircleCollider;
+class AabbCollider;
+class MapBlock : public Entity
+{
+ public:
+    MetaData::MapThing* meta = nullptr;
+    MapService* permanent_map_service = nullptr;
+
+    virtual ~MapBlock() override;
+    virtual void Initialize() override;
+    virtual void RecalcSelfCollider();
+    virtual void FillMFObjectPart(Room* room, Human* hum, cs::MFObjectPart* part_data) override;
+    virtual void FillMFObjectFull(Room* room, Human* hum, cs::MFObjectFull* full_data) override;
+    virtual void GetAabbBox(AabbCollider& aabb_box) override;
+    virtual void GetCircleBox(CircleCollider& circle_box) override;
+    virtual bool IsDead(Room* room) override;
+    virtual long long GetDeadFrameNo(Room* room) override;
+    virtual void OnPreCollision(Room* room) override;
+    virtual void OnBulletHit(Bullet* bullet) override;
+    virtual void OnExplosionHit(Explosion* explosion) override;
+    virtual bool Attackable(Room* room) override;
+    virtual bool ReceiveExplosionDmg(Explosion* explosion) override;
+
+protected:
+    MapBlock();
+
+protected:
+    CircleCollider* self_collider_ = nullptr;
+    AabbCollider* self_collider2_ = nullptr;
+
+    friend class EntityFactory;
+};
diff --git a/server/gameserver/mapinstance.cc b/server/gameserver/mapinstance.cc
index 443af9e..3668028 100644
--- a/server/gameserver/mapinstance.cc
+++ b/server/gameserver/mapinstance.cc
@@ -273,6 +273,8 @@ void MapInstance::CreateBlock()
     dummy->Initialize();
     uniid_hash_[dummy->GetUniId()] = dummy;
     grid_service_->AddPermanentEntity(dummy);
+
+    dummy->ScatterObstacle(this);
 }
 
 void MapInstance::CreateMapObject(MetaData::MapTplThing& thing_tpl)