From a28e2870c237eea41749620612a53b9f37cd6a18 Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwe@kingsome.cn>
Date: Wed, 31 Mar 2021 20:38:21 +0800
Subject: [PATCH] 1

---
 server/gameserver/bullet.cc       | 108 ++++++++++++++++++------------
 server/gameserver/bullet.h        |   3 +-
 server/gameserver/constant.h      |   2 +-
 server/gameserver/creature.cc     |   5 ++
 server/gameserver/creature.h      |   1 +
 server/gameserver/frag_mitask.cc  |  36 ++--------
 server/gameserver/frag_mitask.h   |   8 ++-
 server/gameserver/frameevent.cc   |  39 ++++-------
 server/gameserver/frameevent.h    |   7 +-
 server/gameserver/framemaker.cc   |   4 +-
 server/gameserver/human.cc        |   3 +-
 server/gameserver/mapinstance.cc  |  17 +++--
 server/gameserver/mapinstance.h   |   3 +-
 server/gameserver/microtask.h     |   2 +
 server/gameserver/obstacle.cc     |   3 +-
 server/gameserver/room.cc         |   2 +-
 server/gameserver/roomobstacle.cc |  16 ++---
 server/gameserver/roomobstacle.h  |   3 +-
 18 files changed, 138 insertions(+), 124 deletions(-)

diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 27cf07b..7cde96a 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -11,7 +11,11 @@
 #include "app.h"
 #include "perfmonitor.h"
 #include "smoke_mitask.h"
+#include "frag_mitask.h"
+#include "posiongas_mitask.h"
+#include "molotor_cocktail_mitask.h"
 #include "creature.h"
+#include "roomobstacle.h"
 
 Bullet::Bullet():MoveableEntity()
 {
@@ -31,17 +35,7 @@ void Bullet::Initialize()
 
 void Bullet::Update(int delta_time)
 {
-    #ifdef DEBUG
-    #if 0
-    player->room->CheckPartObjects();
-    #endif
-    #endif
     MapServiceUpdate();
-    #ifdef DEBUG
-    #if 0
-    player->room->CheckPartObjects();
-    #endif
-    #endif
     ++updated_times_;
 }
 
@@ -67,13 +61,13 @@ void Bullet::OnHit(std::set<Entity*>& objects)
                     hum->HasBuffEffect(kBET_AdPlaying)) {
                     continue;
                 }
-                if (sender->room->GetRoomMode() == kZombieMode &&
-                    sender->GetRace() == hum->GetRace()) {
+                if (sender.Get()->room->GetRoomMode() == kZombieMode &&
+                    sender.Get()->GetRace() == hum->GetRace()) {
                     continue;
                 }
-                if (!hum->dead && (IsBomb() || sender->team_id != hum->team_id)) {
-                    float dmg = GetAtk() * (1 + sender->GetAttrRate(kHAT_Atk)) +
-                        sender->GetAttrAbs(kHAT_Atk);
+                if (!hum->dead && (IsBomb() || sender.Get()->team_id != hum->team_id)) {
+                    float dmg = GetAtk() * (1 + sender.Get()->GetAttrRate(kHAT_Atk)) +
+                        sender.Get()->GetAttrAbs(kHAT_Atk);
                     float def = hum->ability.def * (1 + hum->GetAttrRate(kHAT_Def)) +
                         hum->GetAttrAbs(kHAT_Def);
                     float finaly_dmg = dmg * (1 - def/MetaMgr::Instance()->K);
@@ -81,9 +75,9 @@ void Bullet::OnHit(std::set<Entity*>& objects)
                     #if 0
                     sender->stats.damage_amount_out += finaly_dmg;
                     #endif
-                    hum->DecHP(finaly_dmg, sender->GetEntityUniId(), sender->GetName(), gun_meta->i->id());
+                    hum->DecHP(finaly_dmg, sender.Get()->GetEntityUniId(), sender.Get()->GetName(), gun_meta->i->id());
                     #ifdef DEBUG
-                    sender->SendDebugMsg(a8::Format("bullet weapon_id:%d atk:%f",
+                    sender.Get()->SendDebugMsg(a8::Format("bullet weapon_id:%d atk:%f",
                                                     {
                                                      gun_meta->i->id(),
                                                      GetAtk()
@@ -99,8 +93,8 @@ void Bullet::OnHit(std::set<Entity*>& objects)
                 if (!obstacle->IsDead(room) &&
                     obstacle->Attackable() &&
                     !obstacle->IsTerminatorAirDropBox(room)) {
-                    float dmg = GetAtk() * (1 + sender->GetAttrRate(kHAT_Atk)) +
-                        sender->GetAttrAbs(kHAT_Atk);
+                    float dmg = GetAtk() * (1 + sender.Get()->GetAttrRate(kHAT_Atk)) +
+                        sender.Get()->GetAttrAbs(kHAT_Atk);
                     float def = 0;
                     float finaly_dmg = dmg * (1 - def/MetaMgr::Instance()->K);
                     obstacle->SetHealth(room, std::max(0.0f, obstacle->GetHealth(room) - finaly_dmg));
@@ -112,11 +106,11 @@ void Bullet::OnHit(std::set<Entity*>& objects)
                             obstacle->meta->i->damage() > 0.01f) {
                             obstacle->Explosion(this);
                         }
-                        sender->DropItems(obstacle);
+                        sender.Get()->DropItems(obstacle);
                     }
                     obstacle->BroadcastFullState(room);
                     #ifdef DEBUG
-                    sender->SendDebugMsg(a8::Format("bullet weapon_id:%d atk:%f",
+                    sender.Get()->SendDebugMsg(a8::Format("bullet weapon_id:%d atk:%f",
                                                     {
                                                      gun_meta->i->id(),
                                                      GetAtk()
@@ -140,11 +134,11 @@ void Bullet::ProcBomb()
         (
          [this, &objects] (Human* hum, bool& stop)
          {
-             if (!is_tank_skin || sender->team_id != hum->team_id) {
+             if (!is_tank_skin || sender.Get()->team_id != hum->team_id) {
                  //友军火箭筒伤害取消
                  if ((meta->i->_inventory_slot() == 4 ||
                       meta->i->_inventory_slot() == 5) &&
-                     sender->team_id == hum->team_id) {
+                     sender.Get()->team_id == hum->team_id) {
                      return;
                  }
                  if (TestCollision(room, hum)) {
@@ -277,20 +271,25 @@ bool Bullet::IsBomb()
 
 void Bullet::MapServiceUpdate()
 {
-    SetPos(GetPos() + dir * gun_meta->i->bullet_speed() / (float)SERVER_FRAME_RATE);
-    float distance = (GetPos() - born_pos).Norm();
-    if (room->OverBorder(GetPos(), gun_meta->i->bullet_rad())) {
-        if (IsBomb()) {
-            ProcBomb();
-        } else {
-            Check(distance);
-            if (!later_removed_) {
-                room->RemoveObjectLater(this);
+    if (sender.Get()) {
+        SetPos(GetPos() + dir * gun_meta->i->bullet_speed() / (float)SERVER_FRAME_RATE);
+        float distance = (GetPos() - born_pos).Norm();
+        if (room->OverBorder(GetPos(), gun_meta->i->bullet_rad())) {
+            if (IsBomb()) {
+                ProcBomb();
+            } else {
+                Check(distance);
+                if (!later_removed_) {
+                    room->RemoveObjectLater(this);
+                }
             }
+        } else {
+            room->grid_service->MoveBullet(this);
+            Check(distance);
         }
     } else {
-        room->grid_service->MoveBullet(this);
-        Check(distance);
+        room->RemoveObjectLater(this);
+        later_removed_ = true;
     }
 }
 
@@ -298,8 +297,8 @@ float Bullet::GetAtk()
 {
     float atk = gun_meta->i->atk() +
         (gun_upgrade_meta ? gun_upgrade_meta->GetAttrValue(gun_lv, kHAT_Atk) : 0);
-    if (sender->IsAndroid()) {
-        Android* android = (Android*)sender;
+    if (sender.Get()->IsAndroid()) {
+        Android* android = (Android*)sender.Get();
         atk *= android->ai->GetAttackRate();
     }
     return atk;
@@ -312,7 +311,7 @@ void Bullet::Check(float distance)
         (
          [this, &objects] (Human* hum, bool& stop)
          {
-             if (hum != sender && !hum->dead && TestCollision(room, hum)) {
+             if (hum != sender.Get() && !hum->dead && TestCollision(room, hum)) {
                  objects.insert(hum);
              }
          });
@@ -346,11 +345,36 @@ void Bullet::Check(float distance)
 
 void Bullet::ProcFragBomb(float delay_time)
 {
-    a8::Vec2 bomb_pos = GetPos();
-    room->frame_event.AddExplosion(this, meta->i->id(), bomb_pos);
-    #if 0
-    OnHit(objects);
-    #endif
+    if (sender.Get()) {
+        RoomObstacle* dummy_obstacle = nullptr;
+        if (delay_time > 0.0001) {
+            dummy_obstacle = room->CreateObstacle(0, 0, 0);
+        }
+        FragMiTask* task = new FragMiTask();
+        task->room = room;
+        task->sender.Attach(sender.Get());
+        task->bomb_pos = GetPos();
+        task->gun_meta = gun_meta;
+        task->meta = meta;
+        task->atk = GetAtk();
+        task->dummy_obstacle_uniid = dummy_obstacle ? dummy_obstacle->GetEntityUniId() : 0;
+        room->xtimer.AddDeadLineTimerAndAttach
+            (std::max(1, (int)(SERVER_FRAME_RATE * delay_time)),
+             a8::XParams()
+             .SetSender(task),
+             [] (const a8::XParams& param)
+             {
+                 FragMiTask* task = (FragMiTask*)param.sender.GetUserData();
+                 task->Done();
+             },
+             &task->timer_attacher.timer_list_,
+             [] (const a8::XParams& param)
+             {
+                 FragMiTask* task = (FragMiTask*)param.sender.GetUserData();
+                 delete task;
+             }
+             );
+    }
 }
 
 void Bullet::ProcPosionGasBomb(float delay_time)
diff --git a/server/gameserver/bullet.h b/server/gameserver/bullet.h
index 8847e7c..9582448 100644
--- a/server/gameserver/bullet.h
+++ b/server/gameserver/bullet.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "moveableentity.h"
+#include "weakptr.h"
 
 namespace MetaData
 {
@@ -21,7 +22,7 @@ class Bullet : public MoveableEntity
     MetaData::Equip* gun_meta = nullptr;
     MetaData::EquipUpgrade* gun_upgrade_meta = nullptr;
     MetaData::Equip* meta = nullptr;
-    Creature* sender = nullptr;
+    CreatureWeakPtr sender;
     a8::Vec2 dir;
     a8::Vec2 born_pos;
     a8::Vec2 born_dir;
diff --git a/server/gameserver/constant.h b/server/gameserver/constant.h
index cd7d8fd..0eddd65 100755
--- a/server/gameserver/constant.h
+++ b/server/gameserver/constant.h
@@ -397,7 +397,7 @@ const int DEFAULT_BORN_POINT_Y = 3000;
 
 const int ADPLAY_BUFFID = 1006;
 
-const int FIXED_OBJECT_MAXID = 2014;
+const int FIXED_OBJECT_MAXID = 20140;
 
 const int MAX_ROOM_IDX = 2018;
 
diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 5d07bca..f6f4df2 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -814,6 +814,11 @@ bool Creature::CanSee(const Creature* c) const
     return room->grid_service->InView(GetGridId(), c->GetGridId());
 }
 
+bool Creature::CanSee(int grid_id) const
+{
+    return room->grid_service->InView(GetGridId(), grid_id);
+}
+
 float Creature::GetAttrAbs(int attr_id)
 {
     float attr_abs_val = GetBuffAttrAbs(attr_id);
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index 0b579c9..4a6f2e9 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -79,6 +79,7 @@ class Creature : public MoveableEntity
     Skill* CurrentSkill();
     MetaData::SkillPhase* GetCurrSkillPhase();
     bool CanSee(const Creature* c) const;
+    bool CanSee(int grid_id) const;
 
     virtual std::string GetName() { return "";};
     virtual void SendDebugMsg(const std::string& debug_msg);
diff --git a/server/gameserver/frag_mitask.cc b/server/gameserver/frag_mitask.cc
index 535b204..3c8a7fc 100644
--- a/server/gameserver/frag_mitask.cc
+++ b/server/gameserver/frag_mitask.cc
@@ -4,38 +4,14 @@
 #include "room.h"
 #include "player.h"
 #include "metadata.h"
-
-void FragMiTask::Check()
-{
-    {
-        std::list<Player*> deleted_hums;
-        for (auto& hum : player_set) {
-            if (bomb_pos.Distance(hum->GetPos()) > gun_meta->i->bullet_rad() + hum->meta->i->radius()) {
-                hum->RemoveBuffByEffectId(kBET_HunLuan);
-                deleted_hums.push_back(hum);
-            }
-        }
-        for (auto& hum : deleted_hums) {
-            player_set.erase(hum);
-        }
-    }
-    room->TouchPlayerList
-        (a8::XParams(),
-         [this] (Player* hum, a8::XParams&) -> bool
-         {
-             if (bomb_pos.Distance(hum->GetPos()) < gun_meta->i->bullet_rad() + hum->meta->i->radius()) {
-                 if (!hum->HasBuffEffect(kBET_HunLuan)) {
-                     hum->AddBuff(nullptr, buff_meta, 1, nullptr);
-                     player_set.insert(hum);
-                 }
-             }
-             return true;
-         });
-}
+#include "metamgr.h"
 
 void FragMiTask::Done()
 {
-    for (auto& hum : player_set) {
-        hum->RemoveBuffByEffectId(kBET_HunLuan);
+    if (sender.Get()) {
+        room->frame_event.AddExplosionEx(sender,
+                                         meta->i->id(),
+                                         bomb_pos,
+                                         gun_meta->i->explosion_effect());
     }
 }
diff --git a/server/gameserver/frag_mitask.h b/server/gameserver/frag_mitask.h
index cf612dc..66b6d8e 100644
--- a/server/gameserver/frag_mitask.h
+++ b/server/gameserver/frag_mitask.h
@@ -15,10 +15,12 @@ class FragMiTask : public MicroTask
  public:
     Room* room = nullptr;
     a8::Vec2 bomb_pos;
-    std::set<Player*> player_set;
-    MetaData::Buff* buff_meta = nullptr;
+    CreatureWeakPtr sender;
     MetaData::Equip* gun_meta = nullptr;
+    MetaData::Equip* meta = nullptr;
+    float atk = 0;
+    int dummy_obstacle_uniid = 0;
 
-    void Check();
     void Done();
+    float GetAtk() { return atk; }
 };
diff --git a/server/gameserver/frameevent.cc b/server/gameserver/frameevent.cc
index cba544e..f7dc666 100644
--- a/server/gameserver/frameevent.cc
+++ b/server/gameserver/frameevent.cc
@@ -99,41 +99,27 @@ void FrameEvent::AddBullet(Creature* sender,
 
 void FrameEvent::AddExplosion(Bullet* bullet, int item_id, a8::Vec2 bomb_pos)
 {
-    {
-        auto& tuple = a8::FastAppend(explosions_);
-        std::get<0>(tuple) = bullet->sender;
-        auto& p = std::get<1>(tuple);
-
-        p.set_item_id(item_id);
-        TypeConvert::ToPb(bomb_pos, p.mutable_pos());
-        p.set_player_id(bullet->sender->GetEntityUniId());
-    }
-    {
-        int explosion_idx = explosions_.size() - 1;
-        bullet->sender->TouchAllLayerHumanList
-            (
-             [explosion_idx] (Human* hum, bool& stop)
-             {
-                 hum->explosions_.push_back(explosion_idx);
-             });
-    }
+    AddExplosionEx(bullet->sender, item_id, bomb_pos, 0);
 }
 
-void FrameEvent::AddExplosionEx(Creature* sender, int item_id, a8::Vec2 bomb_pos, int effect)
+void FrameEvent::AddExplosionEx(CreatureWeakPtr& sender, int item_id, a8::Vec2 bomb_pos, int effect)
 {
+    if (!sender.Get()) {
+        return;
+    }
     {
         auto& tuple = a8::FastAppend(explosions_);
-        std::get<0>(tuple) = sender;
+        std::get<0>(tuple).Attach(sender.Get());
         auto& p = std::get<1>(tuple);
 
         p.set_item_id(item_id);
         TypeConvert::ToPb(bomb_pos, p.mutable_pos());
-        p.set_player_id(sender->GetEntityUniId());
+        p.set_player_id(sender.Get()->GetEntityUniId());
         p.set_effect(effect);
     }
     {
         int explosion_idx = explosions_.size() - 1;
-        sender->TouchAllLayerHumanList
+        sender.Get()->TouchAllLayerHumanList
             (
              [explosion_idx] (Human* hum, bool& stop)
              {
@@ -151,18 +137,21 @@ void FrameEvent::AddBulletNumChg(Human* hum)
 
 void FrameEvent::AddSmoke(Bullet* bullet, int item_id, a8::Vec2 pos)
 {
+    if (!bullet->sender.Get()) {
+        return;
+    }
     {
         auto& tuple = a8::FastAppend(smokes_);
-        std::get<0>(tuple) = bullet->sender;
+        std::get<0>(tuple).Attach(bullet->sender.Get());
         auto& p = std::get<1>(tuple);
 
         p.set_item_id(item_id);
         TypeConvert::ToPb(pos, p.mutable_pos());
-        p.set_player_id(bullet->sender->GetEntityUniId());
+        p.set_player_id(bullet->sender.Get()->GetEntityUniId());
     }
     {
         int idx = smokes_.size() - 1;
-        bullet->sender->TouchAllLayerHumanList
+        bullet->sender.Get()->TouchAllLayerHumanList
             (
              [idx] (Human* hum, bool& stop)
              {
diff --git a/server/gameserver/frameevent.h b/server/gameserver/frameevent.h
index 2d61f0e..d9be0c6 100644
--- a/server/gameserver/frameevent.h
+++ b/server/gameserver/frameevent.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "cs_proto.pb.h"
+#include "weakptr.h"
 
 class Bullet;
 class Human;
@@ -21,7 +22,7 @@ public:
                    float fly_distance);
     void AddExplosion(Bullet* bullet, int item_id, a8::Vec2 bomb_pos);
     void AddSmoke(Bullet* bullet, int item_id, a8::Vec2 pos);
-    void AddExplosionEx(Creature* sender, int item_id, a8::Vec2 bomb_pos, int effect);
+    void AddExplosionEx(CreatureWeakPtr& sender, int item_id, a8::Vec2 bomb_pos, int effect);
     void AddBulletNumChg(Human* hum);
     void AddHpChg(Human* hum);
     void AddWeaponAmmoChg(Human* hum);
@@ -39,8 +40,8 @@ private:
     ::google::protobuf::RepeatedPtrField<::cs::MFAirDrop> airdrops_;
     std::vector<std::tuple<Creature*, ::cs::MFShot>> shots_;
     std::vector<std::tuple<Creature*, ::cs::MFBullet>> bullets_;
-    std::vector<std::tuple<Creature*, ::cs::MFExplosion>> explosions_;
-    std::vector<std::tuple<Creature*, ::cs::MFSmoke>> smokes_;
+    std::vector<std::tuple<CreatureWeakPtr, ::cs::MFExplosion>> explosions_;
+    std::vector<std::tuple<CreatureWeakPtr, ::cs::MFSmoke>> smokes_;
     std::vector<std::tuple<Creature*, ::cs::MFEmote>> emotes_;
     std::vector<std::tuple<Creature*, ::cs::MFBuffChg>> chged_buffs_;
     std::vector<std::tuple<Human*, int, int>> chged_items_;
diff --git a/server/gameserver/framemaker.cc b/server/gameserver/framemaker.cc
index 084b42c..9c44176 100644
--- a/server/gameserver/framemaker.cc
+++ b/server/gameserver/framemaker.cc
@@ -83,7 +83,7 @@ cs::SMUpdate* FrameMaker::MakeUpdateMsg(Human* hum)
         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))) {
+                if (std::get<0>(tuple).Get() && hum->CanSee(std::get<0>(tuple).Get())) {
                     *msg->add_explosions() = std::get<1>(tuple);
                 }
             }
@@ -91,7 +91,7 @@ cs::SMUpdate* FrameMaker::MakeUpdateMsg(Human* hum)
         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))) {
+                if (std::get<0>(tuple).Get() && hum->CanSee(std::get<0>(tuple).Get())) {
                     *msg->add_smokes() = std::get<1>(tuple);
                 }
             }
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 4e92da2..fa52cd5 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -1757,6 +1757,7 @@ void Human::_UpdateMove(int speed)
         _InternalUpdateMove(distance);
         speed -= distance;
     } while (speed > 0);
+    CheckSpecObject();
 }
 
 void Human::ChangeToRace(RaceType_e race, int level)
@@ -1867,7 +1868,7 @@ RoomObstacle* Human::SummonObstacle(int id, const a8::Vec2& pos)
 {
     RoomObstacle* obstacle = room->CreateObstacle(id, pos.x, pos.y);
     if (obstacle) {
-        obstacle->master = this;
+        obstacle->master.Attach(this);
         room->xtimer.AddRepeatTimerAndAttach
             (
              SERVER_FRAME_RATE,
diff --git a/server/gameserver/mapinstance.cc b/server/gameserver/mapinstance.cc
index 77294ba..3501f87 100644
--- a/server/gameserver/mapinstance.cc
+++ b/server/gameserver/mapinstance.cc
@@ -211,10 +211,14 @@ void MapInstance::CreateTerrain()
         }
     }
 
-    MetaData::MapThing* thing_meta = MetaMgr::Instance()->GetMapThing(0);
+    MetaData::MapThing* thing_meta = MetaMgr::Instance()->GetMapThing(80001);
+    #ifdef DEBUG
+    a8::XPrintf("%s %f %f\n", {map_tpl_name_, (float)first_layer->width(), (float)first_layer->height()});
+    #endif
     if (thing_meta) {
         for (int w = 0; w < first_layer->width(); ++w) {
             for (int h = 0; h < first_layer->height(); ++h) {
+                assert(w < 300 && h < 300);
                 int grid_val = grids[w * first_layer->width() + h];
                 if (grid_val != 0) {
                     float x = w * thing_meta->i->width() + thing_meta->i->width() / 2.0f;
@@ -228,10 +232,12 @@ void MapInstance::CreateTerrain()
                         a8::SetBitFlag(collider_tag, kColliderTag_Grass);
                     }
                     if (collider_tag != 0) {
+                        assert(w < 300 && h < 300);
                         InternalCreateObstacle(thing_meta->i->thing_id(), x, y, collider_tag,
                                                [] (Obstacle* entity)
                                                {
-                                               });
+                                               },
+                                               true);
                     }
                 }
             }
@@ -310,7 +316,8 @@ void MapInstance::CreateBuilding(int thing_id, float building_x, float building_
 }
 
 Obstacle* MapInstance::InternalCreateObstacle(int id, float x, float y, int collider_tag,
-                                         std::function<void (Obstacle*)> on_precreate)
+                                              std::function<void (Obstacle*)> on_precreate,
+                                              bool no_grid_service)
 {
     MetaData::MapThing* thing = MetaMgr::Instance()->GetMapThing(id);
     if (thing) {
@@ -325,7 +332,9 @@ Obstacle* MapInstance::InternalCreateObstacle(int id, float x, float y, int coll
             on_precreate(entity);
         }
         uniid_hash_[entity->GetEntityUniId()] = entity;
-        grid_service_->AddPermanentEntity(entity);
+        if (!no_grid_service) {
+            grid_service_->AddPermanentEntity(entity);
+        }
         {
             switch (thing->i->attack_type()) {
             case 0:
diff --git a/server/gameserver/mapinstance.h b/server/gameserver/mapinstance.h
index 76de008..ec9d729 100644
--- a/server/gameserver/mapinstance.h
+++ b/server/gameserver/mapinstance.h
@@ -30,7 +30,8 @@ class MapInstance
     void CreateMapObject(MetaData::MapTplThing& thing_tpl);
     void CreateBuilding(int thing_id, float building_x, float building_y);
     Obstacle* InternalCreateObstacle(int id, float x, float y, int collider_tag,
-                                     std::function<void (Obstacle*)> on_precreate);
+                                     std::function<void (Obstacle*)> on_precreate,
+                                     bool no_grid_service = false);
     Entity* GetEntityByUniId(int uniid);
     int AllocUniid();
 
diff --git a/server/gameserver/microtask.h b/server/gameserver/microtask.h
index 71d0266..c7a7b7b 100644
--- a/server/gameserver/microtask.h
+++ b/server/gameserver/microtask.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "weakptr.h"
+
 class MicroTask
 {
  public:
diff --git a/server/gameserver/obstacle.cc b/server/gameserver/obstacle.cc
index d331e17..05401c7 100644
--- a/server/gameserver/obstacle.cc
+++ b/server/gameserver/obstacle.cc
@@ -319,7 +319,7 @@ void Obstacle::Explosion(Bullet* bullet)
                             obstacle->Die(room);
                         }
                         if (obstacle->IsDead(room)) {
-                            bullet->sender->DropItems(obstacle);
+                            bullet->sender.Get()->DropItems(obstacle);
                         }
                         obstacle->BroadcastFullState(room);
                     }
@@ -458,3 +458,4 @@ bool Obstacle::Throughable()
 {
     return meta->i->attack_type() == 2;
 }
+
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index b1e96b3..49730e9 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -531,7 +531,7 @@ void Room::CreateBullet(Creature* sender,
 {
     if (grid_service->CanAdd(pos.x, pos.y)) {
         Bullet* bullet = EntityFactory::Instance()->MakeBullet(AllocUniid());
-        bullet->sender = sender;
+        bullet->sender.Attach(sender);
         bullet->room = this;
         bullet->gun_meta = weapon_meta;
         bullet->gun_upgrade_meta = weapon_upgrade_meta;
diff --git a/server/gameserver/roomobstacle.cc b/server/gameserver/roomobstacle.cc
index cd764aa..8df096e 100644
--- a/server/gameserver/roomobstacle.cc
+++ b/server/gameserver/roomobstacle.cc
@@ -88,8 +88,8 @@ void RoomObstacle::RecalcSelfCollider()
 
 bool RoomObstacle::CanThroughable(Human* hum)
 {
-    if (master) {
-        return master->team_id == hum->team_id && temp_through_;
+    if (master.Get()) {
+        return master.Get()->team_id == hum->team_id && temp_through_;
     } else {
         return temp_through_;
     }
@@ -97,7 +97,7 @@ bool RoomObstacle::CanThroughable(Human* hum)
 
 void RoomObstacle::ActiveTimerFunc()
 {
-    if (!master) {
+    if (!master.Get()) {
         room->xtimer.DeleteTimer(room->xtimer.GetRunningTimer());
         return;
     }
@@ -114,7 +114,7 @@ void RoomObstacle::ActiveTimerFunc()
          {
              bool old_temp_through = temp_through_;
              temp_through_ = false;
-             if (master->team_id == hum->team_id) {
+             if (master.Get()->team_id == hum->team_id) {
                  if (TestCollision(room, hum)) {
                      has_hum = true;
                      stop = true;
@@ -131,14 +131,14 @@ void RoomObstacle::ActiveTimerFunc()
 
 void RoomObstacle::UpdateTimerFunc()
 {
-    if (grid_list_ && master && !IsDead(room)) {
+    if (grid_list_ && master.Get() && !IsDead(room)) {
         std::set<Human*> human_list;
         room->grid_service->TouchAllLayerHumanList
             (room->GetRoomIdx(),
              *grid_list_,
              [this, &human_list] (Human* hum, bool& stop)
              {
-                 if (master->team_id != hum->team_id && TestCollision(room, hum)) {
+                 if (master.Get()->team_id != hum->team_id && TestCollision(room, hum)) {
                      human_list.insert(hum);
                  }
              }
@@ -148,7 +148,7 @@ void RoomObstacle::UpdateTimerFunc()
                 for (int buff_id : meta->buff_list) {
                     MetaData::Buff* buff_meta = MetaMgr::Instance()->GetBuff(buff_id);
                     if (buff_meta) {
-                        hum->AddBuff(master,
+                        hum->AddBuff(master.Get(),
                                      buff_meta,
                                      1);
                     }
@@ -176,7 +176,7 @@ void RoomObstacle::Explosion()
              *grid_list_,
              [this, &objects] (Human* hum, bool& stop)
              {
-                if (master->team_id != hum->team_id && TestCollision(room, hum)) {
+                 if (master.Get()->team_id != hum->team_id && TestCollision(room, hum)) {
                     objects.insert(hum);
                 }
              });
diff --git a/server/gameserver/roomobstacle.h b/server/gameserver/roomobstacle.h
index 77c5bf6..26d1ca1 100644
--- a/server/gameserver/roomobstacle.h
+++ b/server/gameserver/roomobstacle.h
@@ -2,6 +2,7 @@
 
 #include "gridservice.h"
 #include "obstacle.h"
+#include "weakptr.h"
 
 class RoomObstacle : public Obstacle
 {
@@ -10,7 +11,7 @@ class RoomObstacle : public Obstacle
     a8::XTimerAttacher xtimer_attacher;
     bool is_treasure_box = false;
     bool is_terminator_airdrop_box = false;
-    class Human* master = nullptr;
+    CreatureWeakPtr master;
 
     virtual ~RoomObstacle() override;
     virtual void Initialize() override;