diff --git a/server/gameserver/aicomponent.cc b/server/gameserver/aicomponent.cc
index 8dbc992..6903c2e 100644
--- a/server/gameserver/aicomponent.cc
+++ b/server/gameserver/aicomponent.cc
@@ -2,6 +2,11 @@
 
 #include "aicomponent.h"
 
+AIComponent::~AIComponent()
+{
+
+}
+
 void AIComponent::Update(int delta_time)
 {
 
diff --git a/server/gameserver/aicomponent.h b/server/gameserver/aicomponent.h
index 5728d2d..7529c8e 100644
--- a/server/gameserver/aicomponent.h
+++ b/server/gameserver/aicomponent.h
@@ -6,5 +6,6 @@ class AIComponent
  public:
     Entity* owner = nullptr;
 
+    virtual ~AIComponent();
     virtual void Update(int delta_time);
 };
diff --git a/server/gameserver/android.ai.cc b/server/gameserver/android.ai.cc
index 8e5fcdd..ab08dd7 100644
--- a/server/gameserver/android.ai.cc
+++ b/server/gameserver/android.ai.cc
@@ -7,6 +7,10 @@
 #include "room.h"
 #include "metamgr.h"
 
+AndroidAI::~AndroidAI()
+{
+}
+
 void AndroidAI::Update(int delta_time)
 {
     Human* hum = (Human*)owner;
diff --git a/server/gameserver/android.ai.h b/server/gameserver/android.ai.h
index 806c21a..6c121bc 100644
--- a/server/gameserver/android.ai.h
+++ b/server/gameserver/android.ai.h
@@ -17,6 +17,7 @@ class AndroidAI : public AIComponent
     int state_elapsed_time = 0;
     Human* last_hiter = nullptr;
 
+    virtual ~AndroidAI() override;
     virtual void Update(int delta_time) override;
 
 private:
diff --git a/server/gameserver/collider.cc b/server/gameserver/collider.cc
index 0b3c0fc..acffbb4 100644
--- a/server/gameserver/collider.cc
+++ b/server/gameserver/collider.cc
@@ -191,6 +191,8 @@ bool ColliderComponent::CalcSafePoint(ColliderComponent* b, a8::Vec2& new_pos)
                                                       new_pos);
                 }
                 break;
+            default:
+                break;
             }
         }
         break;
@@ -220,6 +222,8 @@ bool ColliderComponent::CalcSafePoint(ColliderComponent* b, a8::Vec2& new_pos)
                                                           new_pos);
                 }
                 break;
+            default:
+                break;
             }
         }
         break;
@@ -258,6 +262,8 @@ bool ColliderComponent::CalcSafePointEx(const a8::Vec2& a_pos, ColliderComponent
                                                      new_pos);
                 }
                 break;
+            default:
+                break;
             }
         }
         break;
@@ -287,6 +293,8 @@ bool ColliderComponent::CalcSafePointEx(const a8::Vec2& a_pos, ColliderComponent
                                                          new_pos);
                 }
                 break;
+            default:
+                break;
             }
         }
         break;
diff --git a/server/gameserver/entity.cc b/server/gameserver/entity.cc
index 0aa949c..ee6d93b 100644
--- a/server/gameserver/entity.cc
+++ b/server/gameserver/entity.cc
@@ -113,6 +113,8 @@ void Entity::FindLocationWithTarget(Entity* target)
                         }
                     }
                     break;
+                default:
+                    break;
                 }
                 if (building) {
                     break;
diff --git a/server/gameserver/framemaker.cc b/server/gameserver/framemaker.cc
index 790a131..c20ad9a 100644
--- a/server/gameserver/framemaker.cc
+++ b/server/gameserver/framemaker.cc
@@ -27,7 +27,7 @@ cs::SMUpdate* FrameMaker::MakeUpdateMsg(const Human* hum)
         for (auto& itr : hum->out_objects) {
             msg->add_out_objids(itr);
         }
-        for (int idx : hum->shots_) {
+        for (size_t idx : hum->shots_) {
             if (idx < room->frame_event.shots_.size()) {
                 auto& tuple = room->frame_event.shots_[idx];
                 if (hum->CanSee(std::get<0>(tuple))) {
@@ -35,7 +35,7 @@ cs::SMUpdate* FrameMaker::MakeUpdateMsg(const Human* hum)
                 }
             }
         }
-        for (int idx : hum->bullets_) {
+        for (size_t idx : hum->bullets_) {
             if (idx < room->frame_event.bullets_.size()) {
                 auto& tuple = room->frame_event.bullets_[idx];
                 if (hum->CanSee(std::get<0>(tuple))) {
@@ -43,7 +43,7 @@ cs::SMUpdate* FrameMaker::MakeUpdateMsg(const Human* hum)
                 }
             }
         }
-        for (int idx : hum->explosions_) {
+        for (size_t idx : hum->explosions_) {
             if (idx < room->frame_event.explosions_.size()) {
                 auto& tuple = room->frame_event.explosions_[idx];
                 if (hum->CanSee(std::get<0>(tuple))) {
@@ -51,7 +51,7 @@ cs::SMUpdate* FrameMaker::MakeUpdateMsg(const Human* hum)
                 }
             }
         }
-        for (int idx : hum->smokes_) {
+        for (size_t idx : hum->smokes_) {
             if (idx < room->frame_event.smokes_.size()) {
                 auto& tuple = room->frame_event.smokes_[idx];
                 if (hum->CanSee(std::get<0>(tuple))) {
@@ -59,7 +59,7 @@ cs::SMUpdate* FrameMaker::MakeUpdateMsg(const Human* hum)
                 }
             }
         }
-        for (int idx : hum->emotes_) {
+        for (size_t idx : hum->emotes_) {
             if (idx < room->frame_event.emotes_.size()) {
                 auto& tuple = room->frame_event.emotes_[idx];
                 if (hum->CanSee(std::get<0>(tuple))) {
diff --git a/server/gameserver/gridservice.cc b/server/gameserver/gridservice.cc
index c600db6..95bef3b 100644
--- a/server/gameserver/gridservice.cc
+++ b/server/gameserver/gridservice.cc
@@ -264,7 +264,6 @@ void GridService::ComputeDiff(int old_grid_id, int new_grid_id,
                               std::set<GridCell*>& inc_grid_list,
                               std::set<GridCell*>& dec_grid_list)
 {
-    int diff_grid = new_grid_id - old_grid_id;
     #if 1
     {
         std::set<GridCell*> new_grid_list;
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 237d4d8..0d764b6 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -363,6 +363,8 @@ bool Human::IsCollisionInMapService()
                 }
             }
             break;
+        default:
+            break;
         }
     }
     return false;
@@ -509,7 +511,7 @@ void Human::AutoLoadingBullet(bool manual)
         MetaData::Equip* bullet_meta = MetaMgr::Instance()->GetEquip(curr_weapon->meta->i->use_bullet());
         if (bullet_meta &&
             bullet_meta->i->_inventory_slot() >= 0 &&
-            bullet_meta->i->_inventory_slot() < inventory_.size()
+            bullet_meta->i->_inventory_slot() < (int)inventory_.size()
             ) {
             if (GetInventory(bullet_meta->i->_inventory_slot()) > 0) {
                 StartAction(AT_Reload,
@@ -1092,6 +1094,8 @@ void Human::FindLocation()
                     }
                 }
                 break;
+            default:
+                break;
             }
         }
     }
@@ -1739,6 +1743,8 @@ void Human::UpdateAction()
                 hum->SyncAroundPlayers();
             }
             break;
+        default:
+            break;
         }
         ResetAction();
     }
diff --git a/server/gameserver/mapservice.cc b/server/gameserver/mapservice.cc
index a08915c..4806020 100644
--- a/server/gameserver/mapservice.cc
+++ b/server/gameserver/mapservice.cc
@@ -131,6 +131,8 @@ void MapService::AddCollider(ColliderComponent* collider)
             }
         }
         break;
+    default:
+        break;
     }
     if (top_node) {
         auto pair = node_hash_.find(collider);
@@ -165,7 +167,7 @@ void MapService::GetColliders(float world_x, float world_y, std::set<ColliderCom
     if (center_grid_id < 0 || center_grid_id >= max_grid_id_) {
         return;
     }
-    for (size_t i = 0; i < a8::ArraySize(grid_offset_arr_); ++i) {
+    for (int i = 0; i < a8::ArraySize(grid_offset_arr_); ++i) {
         int grid_id = center_grid_id + grid_offset_arr_[i];
         if (grid_id >= 0 && grid_id < max_grid_id_) {
             list_head* head = &map_cells_[grid_id];
diff --git a/server/gameserver/metadata.cc b/server/gameserver/metadata.cc
index 11f8e4c..6edd151 100644
--- a/server/gameserver/metadata.cc
+++ b/server/gameserver/metadata.cc
@@ -69,8 +69,8 @@ namespace MetaData
                 a8::Split(str, strings2, ':');
                 assert(strings2.size() == 2);
                 if (strings2.size() >= 2) {
-                    int slot = a8::XValue(strings2[0]);
-                    int num = a8::XValue(strings2[1]);
+                    size_t slot = a8::XValue(strings2[0]);
+                    size_t num = a8::XValue(strings2[1]);
                     if (slot >= 0 && slot < volume.size()){
                         volume[slot] = num;
                     }
@@ -81,7 +81,7 @@ namespace MetaData
 
     void EquipUpgrade::Init()
     {
-        for (size_t j = 0; j < i->max_lv(); ++j) {
+        for (int j = 0; j < i->max_lv(); ++j) {
             std::array<float, EA_End>& attrs = a8::FastAppend(level_attrs);
             for (size_t k = 0; k < EA_End; ++k) {
                 attrs[k] = 0;
@@ -101,7 +101,7 @@ namespace MetaData
                 float attr_value = a8::XValue(strings2[2]).GetDouble();
                 if (attr_type < EA_End) {
                     if (attr_level >= 0 && attr_level < i->max_lv()) {
-                        for (size_t j = 1; j < i->max_lv(); ++j) {
+                        for (int j = 1; j < i->max_lv(); ++j) {
                             if (j % attr_level == 0) {
                                 level_attrs[j][attr_type] = attr_value * (j / attr_level);
                             }
@@ -117,7 +117,7 @@ namespace MetaData
         if (level < 1) {
             return 0;
         }
-        if (level > level_attrs.size()) {
+        if (level > (int)level_attrs.size()) {
             return 0;
         }
         if (attr_type < EA_End) {
@@ -136,8 +136,8 @@ namespace MetaData
                 a8::Split(str, strings2, ':');
                 assert(strings2.size() == 2);
                 if (strings2.size() >= 2) {
-                    int slot = a8::XValue(strings2[0]);
-                    int num = a8::XValue(strings2[1]);
+                    size_t slot = a8::XValue(strings2[0]);
+                    size_t num = a8::XValue(strings2[1]);
                     if (slot >= 0 && slot < volume.size()){
                         volume[slot] = num;
                     }
@@ -189,7 +189,7 @@ namespace MetaData
             assert(itemids.size() == nums.size());
             #if 1
             std::vector<int> item_lvs;
-            for (auto& itr : itemids) {
+            for (size_t ii = 0; ii < itemids.size(); ++ii) {
                 item_lvs.push_back(1);
             }
             #endif
@@ -368,7 +368,7 @@ namespace MetaData
 
     void Dress::Init()
     {
-        for (size_t j = 0; j < i->max_lv(); ++j) {
+        for (int j = 0; j < i->max_lv(); ++j) {
             std::array<float, EA_End>& attrs = a8::FastAppend(level_attrs);
             for (size_t k = 0; k < EA_End; ++k) {
                 attrs[k] = 0;
@@ -388,7 +388,7 @@ namespace MetaData
                 float attr_value = a8::XValue(strings2[2]).GetDouble();
                 if (attr_type < EA_End) {
                     if (attr_level >= 0 && attr_level < i->max_lv()) {
-                        for (size_t j = 1; j < i->max_lv(); ++j) {
+                        for (int j = 1; j < i->max_lv(); ++j) {
                             if (j % attr_type == 0) {
                                 level_attrs[j][attr_type] = attr_value * (j / attr_level);
                             }
@@ -404,7 +404,7 @@ namespace MetaData
         if (level < 1) {
             return 0;
         }
-        if (level > level_attrs.size()) {
+        if (level > (int)level_attrs.size()) {
             return 0;
         }
         if (attr_type < EA_End) {
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index 4b74c1d..f2f0ea1 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -339,7 +339,7 @@ void Player::Shot()
             }
             bullet_dir.Rotate(bullet_angle / 180.0f);
             room->frame_event.AddBullet(this, bullet_born_pos, bullet_dir, fly_distance);
-            if (room->BattleStarted() || room->gas_data.gas_mode == GasJump && !a8::HasBitFlag(status, HS_Jump)) {
+            if (room->BattleStarted() || (room->gas_data.gas_mode == GasJump && !a8::HasBitFlag(status, HS_Jump))) {
                 room->CreateBullet(this, curr_weapon, bullet_born_pos, bullet_dir, fly_distance);
             }
         }
@@ -813,7 +813,6 @@ void Player::ProcPrepareItems(const ::google::protobuf::RepeatedField< ::google:
 
 void Player::_CMMove(f8::MsgHdr& hdr, const cs::CMMove& msg)
 {
-    bool has_move_dir = msg.has_move_dir();
     moving = false;
     if (msg.has_move_dir()) {
         if (std::abs(msg.move_dir().x()) > FLT_EPSILON ||
diff --git a/server/gameserver/player.h b/server/gameserver/player.h
index cd55716..122eefe 100644
--- a/server/gameserver/player.h
+++ b/server/gameserver/player.h
@@ -31,10 +31,10 @@ class Player : public Human
     int moved_frames = 0;
 
     bool select_weapon = false;
-    int selected_weapon_idx = 0;
+    size_t selected_weapon_idx = 0;
 
     bool drop_weapon = false;
-    int drop_weapon_idx = 0;
+    size_t drop_weapon_idx = 0;
 
     bool cancel_action = false;
 
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 2e4e217..49aa72f 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -92,7 +92,6 @@ void Room::Update(int delta_time)
         return;
     }
 
-    long long begin_tick = a8::XGetTickCount();
     elapsed_time_ += delta_time;
     while (elapsed_time_ >= 50) {
         if (frame_no % 2 == 0) {
@@ -119,7 +118,6 @@ void Room::Update(int delta_time)
         ++frame_no;
         elapsed_time_ -= 50;
     }
-    long long end_tick = a8::XGetTickCount();
 }
 
 int Room::GetPlayerNum()
@@ -731,6 +729,8 @@ Entity* Room::FindFirstCollisonEntity(const a8::Vec2& aabb_pos, AabbCollider& aa
                     }
                 }
                 break;
+            default:
+                break;
             }
         }
     }
@@ -771,6 +771,8 @@ void Room::FindLocationWithAabb(Entity* target, const a8::Vec2& aabb_pos, AabbCo
                         }
                     }
                     break;
+                default:
+                    break;
                 }
                 if (building) {
                     break;
diff --git a/third_party/a8engine b/third_party/a8engine
index 88b75d8..0f45b14 160000
--- a/third_party/a8engine
+++ b/third_party/a8engine
@@ -1 +1 @@
-Subproject commit 88b75d811aecd688865fddf4d47413a50f953d34
+Subproject commit 0f45b14f63aca986db9c6eb07bbdfd9822114991
diff --git a/third_party/framework b/third_party/framework
index df9f299..dd38a6a 160000
--- a/third_party/framework
+++ b/third_party/framework
@@ -1 +1 @@
-Subproject commit df9f299b3f5a7305946113ffea3fec7c7023a92d
+Subproject commit dd38a6a7c75ae7c880b6f2103763c2709abad920