diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index f00b1d0..811d9b3 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -103,8 +103,8 @@ void Human::FillMFObjectFull(cs::MFObjectFull* full_data)
         int passed_time = (room->frame_no - jump_frameno) * FRAME_RATE_MS;
         cs::MFBodyState* state = p->add_states();
         state->set_state_type(3);
-        state->set_left_time(std::max(0, MetaMgr::Instance()->jump_time - passed_time));
-        state->set_lasting_time(MetaMgr::Instance()->jump_time);
+        state->set_left_time(std::min(0, MetaMgr::Instance()->jump_time * 1000 - passed_time));
+        state->set_lasting_time(MetaMgr::Instance()->jump_time * 1000);
     }
 }
 
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index ddc6f10..9bc1841 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -403,7 +403,8 @@ void Player::UpdateJump()
     if (a8::HasBitFlag(status, HS_Fly)) {
         DoJump();
         room->xtimer.AddDeadLineTimerAndAttach(SERVER_FRAME_RATE * 3,
-                                               a8::XParams(),
+                                               a8::XParams()
+                                               .SetSender(this),
                                                [] (const a8::XParams& param)
                                                {
                                                    Human* hum = (Human*)param.sender.GetUserData();
@@ -793,12 +794,14 @@ void Player::_CMMove(f8::MsgHdr& hdr, const cs::CMMove& msg)
     #if 0
     moving = msg.has_move_dir();
     #endif
-    if (msg.has_attack_dir()) {
-        attack_dir.FromPB(&msg.attack_dir());
-        attack_dir.Normalize();
-    } else {
-        if (moving) {
-            attack_dir = move_dir;
+    if (!a8::HasBitFlag(status, HS_Fly)) {
+        if (msg.has_attack_dir()) {
+            attack_dir.FromPB(&msg.attack_dir());
+            attack_dir.Normalize();
+        } else {
+            if (moving) {
+                attack_dir = move_dir;
+            }
         }
     }
     if (moving) {
@@ -1097,6 +1100,11 @@ void Player::MakeUpdateMsg()
                 }
             }
         }
+        if (room->gas_data.gas_mode == GasJump) {
+            cs::MFPlane* p = update_msg->mutable_plane();
+            room->plane.start_point.ToPB(p->mutable_start_point());
+            room->plane.end_point.ToPB(p->mutable_end_point());
+        }
         if (send_update_msg_times == 0) {
             room->FetchBuilding(this);
         }
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 83a19e4..d5123c5 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -1054,6 +1054,7 @@ void Room::ShuaPlane()
     plane.start_point = Vector2D(100, 100);
     plane.end_point = Vector2D(7500, 7500);
     plane.dir = plane.end_point - plane.start_point;
+    plane.dir.Normalize();
     plane.curr_pos = plane.start_point;
 
     std::vector<Human*> humans;