diff --git a/server/gameserver/constant.h b/server/gameserver/constant.h
index 73c3afc..5ffd1af 100755
--- a/server/gameserver/constant.h
+++ b/server/gameserver/constant.h
@@ -50,6 +50,13 @@ enum DoorState_e
     DoorStateOpen = 1
 };
 
+enum GasMode_e
+{
+    GasInactive = 0,
+    GasWaiting = 1,
+    GasMoving = 2
+};
+
 const char* const PROJ_NAME_FMT = "game%d_gameserver";
 const char* const PROJ_ROOT_FMT = "/data/logs/%s";
 
@@ -60,3 +67,5 @@ const int SYS_RESET_TIME = 2*60; //每日两点重置
 const int DEF_HELMET_ID = 12404;
 const int DEF_CHEST_ID = 12401;
 const int DEF_WEAPON_ID = 12103;
+
+const int GAS_INACTIVE_TIME = 30;
diff --git a/server/gameserver/metamgr.cc b/server/gameserver/metamgr.cc
index 139542b..4fe77ec 100755
--- a/server/gameserver/metamgr.cc
+++ b/server/gameserver/metamgr.cc
@@ -192,3 +192,9 @@ MetaData::Drop* MetaMgr::GetDrop(int drop_id)
     auto itr = loader_->drop_hash.find(drop_id);
     return itr != loader_->drop_hash.end() ? itr->second : nullptr;
 }
+
+MetaData::SafeArea* MetaMgr::GetSafeArea(int area_id)
+{
+    auto itr = loader_->safearea_hash.find(area_id);
+    return itr != loader_->safearea_hash.end() ? itr->second : nullptr;
+}
diff --git a/server/gameserver/metamgr.h b/server/gameserver/metamgr.h
index 8e07dcc..508b6ae 100755
--- a/server/gameserver/metamgr.h
+++ b/server/gameserver/metamgr.h
@@ -23,6 +23,7 @@ class MetaMgr : public a8::Singleton<MetaMgr>
     MetaData::Equip* GetEquip(int id);
     MetaData::Building* GetBuilding(int building_id);
     MetaData::Drop* GetDrop(int drop_id);
+    MetaData::SafeArea* GetSafeArea(int area_id);
 
  private:
     MetaDataLoader* loader_ = nullptr;
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index d4befea..4094040 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -291,6 +291,27 @@ void Player::FillMFPlayerData(cs::MFActivePlayerData* player_data)
     player_data->set_has_action(false);
 }
 
+void Player::FillMFGasData(cs::MFGasData* gas_data)
+{
+    gas_data->set_mode(room->gas_data.gas_mode);
+    if (room->gas_data.gas_mode == GasInactive) {
+        long long duration = GAS_INACTIVE_TIME * 20 - (room->frame_no - room->gas_data.gas_start_frameno);
+        gas_data->set_duration(std::max(duration * 50, (long long)1000) / 1000);
+    } else {
+        if (room->gas_data.area_meta->i->wait_time() <= 0) {
+            gas_data->set_duration(0);
+        } else {
+            long long duration = room->gas_data.area_meta->i->wait_time() * 20 -
+                (room->frame_no - room->gas_data.gas_start_frameno);
+            gas_data->set_duration(std::max(duration * 50, (long long)1000) / 1000);
+        }
+    }
+    room->gas_data.pos_old.ToPB(gas_data->mutable_pos_old());
+    room->gas_data.pos_new.ToPB(gas_data->mutable_pos_new());
+    gas_data->set_rad_old(room->gas_data.rad_old);
+    gas_data->set_rad_new(room->gas_data.rad_new);
+}
+
 void Player::MakeUpdateMsg()
 {
     update_msg->Clear();
@@ -327,6 +348,13 @@ void Player::MakeUpdateMsg()
             update_msg->set_active_player_id(entity_uniid);
             FillMFPlayerData(update_msg->mutable_active_player_data());
         }
+        if (updated_times == 0 || last_sync_gas_frameno < room->gas_data.gas_start_frameno) {
+            last_sync_gas_frameno = room->gas_data.gas_start_frameno;
+            FillMFGasData(update_msg->mutable_gas_data());
+        }
+        if (room->gas_data.gas_mode == GasMoving) {
+            update_msg->set_gas_progress(room->gas_data.gas_progress);
+        }
         update_msg->set_alive_count(room->AliveCount());
 
         {
diff --git a/server/gameserver/player.h b/server/gameserver/player.h
index a270574..5ef5098 100644
--- a/server/gameserver/player.h
+++ b/server/gameserver/player.h
@@ -11,6 +11,7 @@ namespace cs
     class CMSpectate;
     class CMVoice;
     class MFActivePlayerData;
+    class MFGasData;
 }
 
 class Room;
@@ -63,9 +64,11 @@ class Player : public Human
     void _CMVoice(f8::MsgHdr& hdr, const cs::CMVoice& msg);
 
     void FillMFPlayerData(cs::MFActivePlayerData* player_data);
+    void FillMFGasData(cs::MFGasData* gas_data);
 
 private:
     cs::SMUpdate* update_msg = nullptr;
+    long long last_sync_gas_frameno = 0;
 
     void MakeUpdateMsg();
 };
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index 692b2dd..ea34387 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -12,6 +12,7 @@ enum RoomState_e
 namespace MetaData
 {
     struct Map;
+    struct SafeArea;
 }
 
 struct RoomFrameData
@@ -34,6 +35,7 @@ public:
     MetaData::Map* map_meta = nullptr;
     RoomFrameData frame_data;
     long long frame_no = 0;
+    GasData gas_data;
 
     void Update(int delta_time);
     bool IsFull();
diff --git a/server/gameserver/types.h b/server/gameserver/types.h
index 9c7367c..112eea0 100755
--- a/server/gameserver/types.h
+++ b/server/gameserver/types.h
@@ -40,3 +40,20 @@ struct Vector2D
     static const Vector2D LEFT;
     static const Vector2D RIGHT;
 };
+
+namespace MetaData
+{
+    struct SafeArea;
+}
+
+struct GasData
+{
+    GasMode_e gas_mode = GasInactive;
+    Vector2D pos_old;
+    Vector2D pos_new;
+    float rad_old = 0.0f;
+    float rad_new = 0.0f;
+    float gas_progress = 0.0f;
+    long long gas_start_frameno = 0;
+    MetaData::SafeArea* area_meta = nullptr;
+};
diff --git a/server/tools/protobuild/cs_proto.proto b/server/tools/protobuild/cs_proto.proto
index d0d1acb..ed86380 100755
--- a/server/tools/protobuild/cs_proto.proto
+++ b/server/tools/protobuild/cs_proto.proto
@@ -88,6 +88,7 @@ message MFVector2D
     optional float y = 2; //y轴
 }
 
+//地图物件
 message MFMapObject
 {
     //type
@@ -96,6 +97,7 @@ message MFMapObject
     optional int32 scale = 3; //缩放比
 }
 
+//玩家信息
 message MFPlayerInfo
 {
     optional int32 player_id = 1;
@@ -344,42 +346,66 @@ message MFActivePlayerData
     optional int32 action_item_id = 5;
     optional int32 action_target_id = 6;
 
-    optional int32 cur_scope = 10;
-    repeated int32 inventory = 11;
+    optional int32 cur_scope = 10; //当前视野倍数 1 2 4 8 15
+    /*
+      0: 9mm
+      1: 762mm
+      2: 556mm
+      3: 12gauge
+      4: frag 手雷
+      5: smoke 烟雾弹
+      6: bandage 绷带
+      7: healthkit 医疗包
+      8: soda 苏打
+      9: painkiller 止痛药
 
-    optional int32 cur_weap_idx = 15;
-    //    repeated int32 weapons = 16;
+      10: 1xscope
+      11: 2xscope
+      12: 4xscope
+      13: 8xscope
+      14: 15xscope
+     */
+    repeated int32 inventory = 11; //库存
+
+    optional int32 cur_weap_idx = 15; //当前武器索引 0-3
+    repeated int32 weapons = 16; //武器列表
 
     optional int32 spectator_count = 20;
 }
 
-//毒气数据
+//毒圈数据
 message MFGasData
 {
-    optional int32 mode = 1; //0:inactive 1:waiting 2:moveing
-    optional float duration = 2;
-    optional MFVector2D pos_old = 3;
-    optional MFVector2D pos_new = 4;
-    optional float rad_old = 5;
-    optional float rad_new = 6;
+    /*
+      0: 进入战前准备
+      1: 辐射区将在多少时间后扩大
+      2: 辐射区正在扩大
+     */
+    optional int32 mode = 1; //0:inactive 1:waiting 2:moving
+    optional float duration = 2; //持续时间(秒)
+    optional MFVector2D pos_old = 3; //前一个圆心
+    optional MFVector2D pos_new = 4; //新圆心
+    optional float rad_old = 5; //前一个圆半径
+    optional float rad_new = 6; //新圆半径
 }
 
+//队伍数据
 message MFTeamData
 {
-    optional int32 player_id = 1;
-    optional MFVector2D pos = 2;
-    optional MFVector2D dir = 3;
-    optional float health = 4;
-    optional bool disconnected  = 5;
-    optional bool dead = 6;
-    optional bool downed = 7;
+    optional int32 player_id = 1; //玩家id
+    optional MFVector2D pos = 2; //位置
+    optional MFVector2D dir = 3; //方向
+    optional float health = 4; //血量
+    optional bool disconnected  = 5; //是否短线
+    optional bool dead = 6; //是否死亡
+    optional bool downed = 7; //是否倒下
 }
 
 //同队队友数据
 message MFTeammateInfo
 {
-    optional int32 team_id = 1;
-    repeated int32 player_ids = 2;
+    optional int32 team_id = 1; //队伍id
+    repeated int32 player_ids = 2; //成员id列表
 }
 
 //子弹
@@ -397,44 +423,47 @@ message MFBullet
     optional int32 gun_id = 10; //抢id
 }
 
+//射击
 message MFShot
 {
-    optional int32 player_id = 1;
-    optional int32 weapon_id = 2;
+    optional int32 player_id = 1; //玩家id
+    optional int32 weapon_id = 2; //武器id
     optional bool offhand = 3;
     optional int32 bullskin = 4;
 }
 
+//爆炸
 message MFExplosion
 {
-    optional MFVector2D pos = 1;
+    optional MFVector2D pos = 1; //位置
     optional int32 type = 2;
 }
 
+//表情
 message MFEmote
 {
     optional int32 type = 1;
     optional int32 is_ping = 2;
-    optional int32 player_id = 3;
-    optional MFVector2D pos = 4;
+    optional int32 player_id = 3; //玩家id
+    optional MFVector2D pos = 4; //位置
     optional string msg = 5;
 }
 
-//xx
+//游戏结束时玩家统计信息
 message MFPlayerStats
 {
-    optional int32 player_id = 1;
-    optional string player_avatar_url = 2;
-    optional int32 time_alive = 3;
-    optional int32 kills = 4;
-    optional int32 dead = 5;
+    optional int32 player_id = 1; //玩家id
+    optional string player_avatar_url = 2; //玩家头像
+    optional int32 time_alive = 3; //存活时间
+    optional int32 kills = 4; //击杀敌人数
+    optional int32 dead = 5; //是否已死亡
     optional int32 damage_type = 6;
     optional int32 source_type = 30;
-    optional int32 killer_id = 7;
+    optional int32 killer_id = 7; //杀手id(自杀时为自己)
     optional int32 damage_given = 8;
     optional int32 damage_taken = 9;
-    optional int32 gold = 10;
-    optional int32 all_score = 11;
+    optional int32 gold = 10; //金币
+    optional int32 all_score = 11; //所有积分
     optional int32 score_rank = 12;
     optional int32 score_kill = 13;
     optional int32 score_dmg_given = 14;
@@ -446,7 +475,7 @@ message MFPlayerStats
     optional int32 chg_elo = 19;
 
     optional int32 heal_heath = 20;
-    optional string account_id = 21;
+    optional string account_id = 21; //账号id
 
     repeated MFGoods annual_goods = 22;
 }
@@ -519,9 +548,7 @@ message CMEmote
 {
     optional int32 type = 1;
     optional MFVector2D pos = 2;
-    //optional bool use_loadout = 3;
     optional bool team_only = 4;
-    //optional bool is_ping = 5;
 }
 
 //自杀
@@ -578,8 +605,8 @@ message SMUpdate
     optional int32 active_player_id = 5; //当前活跃玩家id(如果玩家死亡后是观战对象的id)
     optional MFActivePlayerData active_player_data = 6; //活跃玩家数据(如果玩家死亡后是观战对象的数据)
     optional int32 alive_count = 15; //存活数量
-    optional int32 gasT = 16; //毒气
-    optional MFGasData gas_data = 17; //毒气数据
+    optional int32 gas_progress = 16; //毒圈进度
+    optional MFGasData gas_data = 17; //毒圈数据
     repeated MFTeamData team_data = 18;
     repeated MFTeammateInfo teams = 19; //同队队友数据
     repeated MFBullet bullets = 20; //子弹
@@ -591,7 +618,7 @@ message SMUpdate
     optional uint32 data_flags32 = 256;
 }
 
-//xx
+//击杀
 message SMKillMsg
 {
     optional int32 damage_type = 1;