diff --git a/server/gameserver/android.ai.cc b/server/gameserver/android.ai.cc
index 6c86def..40b34b9 100644
--- a/server/gameserver/android.ai.cc
+++ b/server/gameserver/android.ai.cc
@@ -20,16 +20,10 @@ AndroidAI::~AndroidAI()
 void AndroidAI::Update(int delta_time)
 {
     Human* hum = (Human*)owner;
-    if (hum->poisoning) {
-        hum->poisoning_time += delta_time;
-    }
     state_elapsed_time += delta_time;
     if (hum->dead) {
         return;
     }
-    if (hum->poisoning) {
-        hum->UpdatePoisoning();
-    }
     if (hum->playing_skill) {
         hum->UpdateSkill();
     }
diff --git a/server/gameserver/constant.h b/server/gameserver/constant.h
index 0ac9f00..b0f8d79 100755
--- a/server/gameserver/constant.h
+++ b/server/gameserver/constant.h
@@ -105,7 +105,6 @@ enum SkillCond_e
 
 enum VirtualWeapon_e
 {
-    VW_SafeArea = 9000000,
     VW_Spectate = 9000001,
     VW_SelfDetonate = 9000002,
     VW_Mine = 9000003,
@@ -113,7 +112,6 @@ enum VirtualWeapon_e
 
 enum VirtualPlayer_e
 {
-    VP_SafeArea = 9000000,
     VP_Spectate = 9000001,
     VP_SelfDetonate = 9000002,
     VP_Mine = 9000003,
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index c0a249a..faff3db 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -400,29 +400,6 @@ float Human::GetMaxHP()
     return ability.max_hp;
 }
 
-void Human::UpdatePoisoning()
-{
-    if (dead) {
-        return;
-    }
-    bool need_notify = poisoning_time > 1000;
-    while (poisoning_time > 1000) {
-        if (room->gas_data.is_last_gas) {
-            DecHP(room->gas_data.new_area_meta->i->hurt(), VP_SafeArea, "安全区", VW_SafeArea);
-        } else {
-            DecHP(room->gas_data.old_area_meta->i->hurt(), VP_SafeArea, "安全区", VW_SafeArea);
-        }
-        if (dead) {
-            poisoning_time = 0;
-            break;
-        }
-        poisoning_time -= 1000;
-    }
-    if (need_notify && entity_subtype == EST_Player) {
-        SyncAroundPlayers();
-    }
-}
-
 void Human::UpdateSkill()
 {
     if (skill_meta) {
@@ -1419,32 +1396,7 @@ void Human::ProcBuffEffect(Buff* buff)
 
 void Human::OnAttack()
 {
-    if (a8::HasBitFlag(status, HS_InGrass)) {
-        if (HasBuffEffect(BET_InGrass)) {
-            RemoveBuffByEffectId(BET_InGrass);
-        }
-        if (grass_hide_timer_list_) {
-            room->xtimer.ModifyTimer(grass_hide_timer_list_,
-                                     MetaMgr::Instance()->grass_invisible_time2 * SERVER_FRAME_RATE);
-        } else {
-            auto hide_func =
-                [] (const a8::XParams& param)
-                {
-                    Human* hum = (Human*)param.sender.GetUserData();
-                    hum->grass_hide_timer_list_ = nullptr;
-                    MetaData::Buff* buff_meta = MetaMgr::Instance()->GetBuff(GRASS_HIDE_BUFF_ID);
-                    if (buff_meta) {
-                        hum->AddBuff(buff_meta);
-                    }
-                };
-            grass_hide_timer_list_ =
-                room->xtimer.AddDeadLineTimerAndAttach(MetaMgr::Instance()->grass_invisible_time2 * SERVER_FRAME_RATE,
-                                                       a8::XParams()
-                                                       .SetSender(this),
-                                                       hide_func,
-                                                       &xtimer_attacher.timer_list_);
-        }
-    }
+    GrassTempShow();
 }
 
 void Human::OnEnterGrass()
@@ -1535,6 +1487,36 @@ void Human::CheckGrass()
     }
 }
 
+void Human::GrassTempShow()
+{
+    if (a8::HasBitFlag(status, HS_InGrass)) {
+        if (HasBuffEffect(BET_InGrass)) {
+            RemoveBuffByEffectId(BET_InGrass);
+        }
+        if (grass_hide_timer_list_) {
+            room->xtimer.ModifyTimer(grass_hide_timer_list_,
+                                     MetaMgr::Instance()->grass_invisible_time2 * SERVER_FRAME_RATE);
+        } else {
+            auto hide_func =
+                [] (const a8::XParams& param)
+                {
+                    Human* hum = (Human*)param.sender.GetUserData();
+                    hum->grass_hide_timer_list_ = nullptr;
+                    MetaData::Buff* buff_meta = MetaMgr::Instance()->GetBuff(GRASS_HIDE_BUFF_ID);
+                    if (buff_meta) {
+                        hum->AddBuff(buff_meta);
+                    }
+                };
+            grass_hide_timer_list_ =
+                room->xtimer.AddDeadLineTimerAndAttach(MetaMgr::Instance()->grass_invisible_time2 * SERVER_FRAME_RATE,
+                                                       a8::XParams()
+                                                       .SetSender(this),
+                                                       hide_func,
+                                                       &xtimer_attacher.timer_list_);
+        }
+    }
+}
+
 float* Human::GetAbilityById(int attr_id)
 {
     switch (attr_id) {
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index 6a5c356..f9d5e64 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -74,8 +74,6 @@ class Human : public Entity
     int max_energy_shield = 0;
     int vip = 0;
     int sdmg = 0;
-    bool poisoning = false;
-    long long poisoning_time = 0;
     int lethal_weapon = 0;
     long long dead_frameno = 0;
     long long join_frameno = 0;
@@ -138,7 +136,6 @@ class Human : public Entity
     float GetRadius();
     float GetHP();
     float GetMaxHP();
-    void UpdatePoisoning();
     void UpdateSkill();
     void SyncAroundPlayers();
     void AutoLoadingBullet(bool manual = false);
@@ -209,6 +206,7 @@ class Human : public Entity
     void OnEnterGrass();
     void OnLeaveGrass();
     void CheckGrass();
+    void GrassTempShow();
     float* GetAbilityById(int attr_id);
     void RecalcBaseAttr();
 
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index 9bdb7c5..ab8771f 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -52,9 +52,6 @@ void Player::Initialize()
 
 void Player::Update(int delta_time)
 {
-    if (poisoning) {
-        poisoning_time += delta_time;
-    }
     if (a8::HasBitFlag(status, HS_Assaulting)) {
         _UpdateAssaultMove();
     } else {
@@ -72,9 +69,6 @@ void Player::Update(int delta_time)
         if (interaction_objids.size() > 0) {
             ProcInteraction();
         }
-        if (poisoning) {
-            UpdatePoisoning();
-        }
         if (playing_skill) {
             UpdateSkill();
         }