diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 0dfac3d..dbfe0c4 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -2984,6 +2984,15 @@ void Human::DropItems(Obstacle* obstacle)
     } else {
         ++normal_drop_times_;
     }
+    #ifdef DEBUG
+    a8::UdpLog::Instance()->Debug("DropItems normal:%d box:%d drop_id:%d is_treasure_box:%d",
+                                  {
+                                   normal_drop_times_,
+                                   box_drop_times_,
+                                   drop_id,
+                                   is_treasure_box ? 1 : 0
+                                  });
+    #endif
 }
 
 void Human::RecalcBuffAttr()
@@ -3219,6 +3228,16 @@ void Human::AdjustDecHp(float old_health, float& new_health)
     if (buff) {
         if (GetHP() < GetMaxHP() * buff->meta->param1) {
             new_health = std::max(GetMaxHP() * buff->meta->param1, GetMaxHP());
+#ifdef DEBUG
+            a8::UdpLog::Instance()->Debug("触发新手保护buff %d %s %s %f %f",
+                                          {
+                                           room->room_idx,
+                                           account_id,
+                                           name,
+                                           old_health,
+                                           new_health
+                                          });
+#endif
         }
     }
 }
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 8ace7a9..41ad690 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -201,6 +201,14 @@ void Room::AddPlayer(Player* hum)
             if (buff_meta) {
                 hum->AddBuff(buff_meta, 1);
             }
+#ifdef DEBUG
+        a8::UdpLog::Instance()->Debug("添加新手buff %s %s %d",
+                                      {
+                                       hum->account_id,
+                                       hum->name,
+                                       buff_id
+                                      });
+#endif
         }
     }
     while (human_hash_.size() > ROOM_MAX_PLAYER_NUM) {
@@ -1730,6 +1738,13 @@ void Room::DisableHuman(Human* target)
 
 void Room::ShuaNewBieAndroid(Human* target)
 {
+    #ifdef DEBUG
+    a8::UdpLog::Instance()->Debug("ShuaNewBieAndroid %s %s",
+                                  {
+                                   target->account_id,
+                                   target->name
+                                  });
+#endif
     for (auto& pair : human_hash_) {
         if (pair.second->entity_subtype == EST_Android &&
             a8::HasBitFlag(pair.second->status, HS_Disable)) {
@@ -1848,6 +1863,13 @@ void Room::DieAndroidTimerFunc()
 
 void Room::ProcShuaAndroid(int shua_time, int shua_num)
 {
+    #ifdef DEBUG
+    a8::UdpLog::Instance()->Debug("ProcShuaAndroid shua_time:%d shua_num%d",
+                                  {
+                                   shua_time,
+                                   shua_num
+                                  });
+    #endif
     for (auto& pair : human_hash_) {
         if (pair.second->entity_subtype == EST_Android &&
             a8::HasBitFlag(pair.second->status, HS_Disable)) {
@@ -1858,6 +1880,13 @@ void Room::ProcShuaAndroid(int shua_time, int shua_num)
 
 void Room::ProcDieAndroid(int die_time, int die_num)
 {
+    #ifdef DEBUG
+    a8::UdpLog::Instance()->Debug("ProcDieAndroid die_time:%d die_num:%d",
+                                  {
+                                   die_time,
+                                   die_num
+                                  });
+    #endif
     for (auto& pair : human_hash_) {
         if (pair.second->entity_subtype == EST_Android &&
             a8::HasBitFlag(pair.second->status, HS_Disable)) {
diff --git a/server/gameserver/roommgr.cc b/server/gameserver/roommgr.cc
index 916e865..9fabf37 100644
--- a/server/gameserver/roommgr.cc
+++ b/server/gameserver/roommgr.cc
@@ -91,6 +91,7 @@ void RoomMgr::_CMJoin(f8::MsgHdr& hdr, const cs::CMJoin& msg)
                              hdr.socket_handle,
                              msg);
     hum->meta = MetaMgr::Instance()->human_meta;
+    hum->room = room;
     hum->ProcPrepareItems(msg.prepare_items());
     hum->ProcPrepareItems2(msg.prepare_items2());
     room->AddPlayer(hum);
diff --git a/server/gameserver/roomobstacle.cc b/server/gameserver/roomobstacle.cc
index 28754ee..146ce9a 100644
--- a/server/gameserver/roomobstacle.cc
+++ b/server/gameserver/roomobstacle.cc
@@ -57,9 +57,27 @@ void RoomObstacle::RecalcSelfCollider()
             break;
         }
     }
+    if (!self_collider_) {
+    #ifdef DEBUG
+    a8::UdpLog::Instance()->Debug("OnAddCollider %d %d %d",
+                                  {
+                                   room->room_idx,
+                                   entity_uniid,
+                                   (long long)self_collider_
+                                  });
+    #endif
+    }
 }
 
 void RoomObstacle::OnRemoveCollider(ColliderComponent* collider)
 {
+    #ifdef DEBUG
+    a8::UdpLog::Instance()->Debug("OnRemoveCollider %d %d %d",
+                                  {
+                                   room->room_idx,
+                                   entity_uniid,
+                                   (long long)collider
+                                  });
+    #endif
     room->map_service->RemoveCollider(collider);
 }
diff --git a/third_party/a8engine b/third_party/a8engine
index 837e2d9..8303f98 160000
--- a/third_party/a8engine
+++ b/third_party/a8engine
@@ -1 +1 @@
-Subproject commit 837e2d9f9e700a58f3536f97206c2abf39cd4303
+Subproject commit 8303f98fe3cd6fa6ed60263676fa6b4a3beddeac