diff --git a/Zframework/scene.lua b/Zframework/scene.lua
index 4ca98a02..a8a31478 100644
--- a/Zframework/scene.lua
+++ b/Zframework/scene.lua
@@ -132,10 +132,10 @@ local swap={
 }--Scene swapping animations
 function SCN.swapTo(tar,style)--Parallel scene swapping, cannot back
 	if scenes[tar]then
-		local S=SCN.stat
 		if not SCN.swapping and tar~=SCN.cur then
 			if not style then style="fade"end
 			SCN.swapping=true
+			local S=SCN.stat
 			S.tar,S.style=tar,style
 			S.time,S.mid,S.draw=unpack(swap[style])
 		end
diff --git a/parts/gametoolfunc.lua b/parts/gametoolfunc.lua
index 6c24a272..221ce1ad 100644
--- a/parts/gametoolfunc.lua
+++ b/parts/gametoolfunc.lua
@@ -5,7 +5,7 @@ local fs=love.filesystem
 local gc=love.graphics
 local gc_setColor,gc_circle=gc.setColor,gc.circle
 
-local int,rnd=math.floor,math.random
+local max,int,rnd=math.max,math.floor,math.random
 local sub=string.sub
 local char,byte=string.char,string.byte
 local ins,rem=table.insert,table.remove
@@ -772,6 +772,58 @@ function gameStart()--Call when countdown finish (GAME.frame==180)
 		P:popNext()
 	end
 end
+function checkStart()
+	if GAME.frame<=180 then
+		if GAME.frame==180 then
+			gameStart()
+		elseif GAME.frame==60 or GAME.frame==120 then
+			SFX.play("ready")
+		end
+		for p=1,#PLAYERS do
+			local P=PLAYERS[p]
+			if P.movDir~=0 then
+				if P.moving<P.gameEnv.das then
+					P.moving=P.moving+1
+				end
+			else
+				P.moving=0
+			end
+		end
+		return true
+	end
+end
+function checkWarning()
+	local P1=PLAYERS[1]
+	if P1.alive then
+		if GAME.frame%26==0 and SETTING.warn then
+			local F=P1.field
+			local height=0--Max height of row 4~7
+			for x=4,7 do
+				for y=#F,1,-1 do
+					if F[y][x]>0 then
+						if y>height then
+							height=y
+						end
+						break
+					end
+				end
+			end
+			GAME.warnLVL0=math.log(height-15+P1.atkBuffer.sum*.8)
+		end
+		_=GAME.warnLVL
+		if _<GAME.warnLVL0 then
+			_=_*.95+GAME.warnLVL0*.05
+		elseif _>0 then
+			_=max(_-.026,0)
+		end
+		GAME.warnLVL=_
+	elseif GAME.warnLVL>0 then
+		GAME.warnLVL=max(GAME.warnLVL-.026,0)
+	end
+	if GAME.warnLVL>1.126 and GAME.frame%30==0 then
+		SFX.fplay("warning",SETTING.sfx_warn)
+	end
+end
 
 --[[
 	Table data format:
@@ -1033,10 +1085,11 @@ function TICK_wsRead()
 				return
 			end
 		elseif readErr then
-			wsWrite("/quit")
 			WSCONN=false
 			LOG.print(text.wsError..tostring(readErr),"warn")
-			SCN.back()
+			while #SCN.stack>4 do
+				SCN.pop()
+			end
 			return
 		end
 	end
diff --git a/parts/scenes/net_game.lua b/parts/scenes/net_game.lua
index 121c7fc1..6382a1ac 100644
--- a/parts/scenes/net_game.lua
+++ b/parts/scenes/net_game.lua
@@ -4,7 +4,7 @@ local tc=love.touch
 
 local playerData
 local ins,rem=table.insert,table.remove
-local max,sin=math.max,math.sin
+local sin=math.sin
 
 local SCR=SCR
 local VK=virtualkey
@@ -261,14 +261,8 @@ end
 
 function scene.update(dt)
 	local _
-	local P1=PLAYERS[1]
 	local GAME=GAME
 
-	touchMoveLastFrame=false
-
-	--Update virtualkey animation
-	updateVirtualkey()
-
 	if not playing then
 		heartBeatTimer=heartBeatTimer+dt
 		if heartBeatTimer>42 then
@@ -278,9 +272,11 @@ function scene.update(dt)
 		return
 	end
 
-	GAME.frame=GAME.frame+1
+	touchMoveLastFrame=false
+	updateVirtualkey()
 
-	if GAME.frame-lastUpstreamTime>10 then
+	GAME.frame=GAME.frame+1
+	if GAME.frame-lastUpstreamTime>8 then
 		local stream
 		stream,upstreamProgress=dumpRecording(GAME.rep,upstreamProgress)
 		if #stream>0 then
@@ -289,25 +285,8 @@ function scene.update(dt)
 		lastUpstreamTime=PLAYERS[1].alive and GAME.frame or 1e99
 	end
 
-	--Counting,include pre-das,directy RETURN,or restart counting
-	if GAME.frame<180 then
-		if GAME.frame==179 then
-			gameStart()
-		elseif GAME.frame==60 or GAME.frame==120 then
-			SFX.play("ready")
-		end
-		for p=1,#PLAYERS do
-			local P=PLAYERS[p]
-			if P.movDir~=0 then
-				if P.moving<P.gameEnv.das then
-					P.moving=P.moving+1
-				end
-			else
-				P.moving=0
-			end
-		end
-		return
-	end
+	--Counting, include pre-das
+	if checkStart()then return end
 
 	--Update players
 	for p=1,#PLAYERS do
@@ -315,35 +294,7 @@ function scene.update(dt)
 	end
 
 	--Warning check
-	if P1.alive then
-		if GAME.frame%26==0 and SETTING.warn then
-			local F=P1.field
-			local height=0--Max height of row 4~7
-			for x=4,7 do
-				for y=#F,1,-1 do
-					if F[y][x]>0 then
-						if y>height then
-							height=y
-						end
-						break
-					end
-				end
-			end
-			GAME.warnLVL0=math.log(height-15+P1.atkBuffer.sum*.8)
-		end
-		_=GAME.warnLVL
-		if _<GAME.warnLVL0 then
-			_=_*.95+GAME.warnLVL0*.05
-		elseif _>0 then
-			_=max(_-.026,0)
-		end
-		GAME.warnLVL=_
-	elseif GAME.warnLVL>0 then
-		GAME.warnLVL=max(GAME.warnLVL-.026,0)
-	end
-	if GAME.warnLVL>1.126 and GAME.frame%30==0 then
-		SFX.fplay("warning",SETTING.sfx_warn)
-	end
+	checkWarning()
 end
 
 function scene.draw()
diff --git a/parts/scenes/play.lua b/parts/scenes/play.lua
index 4990d862..7fd29eee 100644
--- a/parts/scenes/play.lua
+++ b/parts/scenes/play.lua
@@ -2,7 +2,7 @@ local gc=love.graphics
 local gc_setColor=gc.setColor
 local tc=love.touch
 
-local max,sin=math.max,math.sin
+local sin=math.sin
 
 local SCR=SCR
 local VK=virtualkey
@@ -127,12 +127,10 @@ function scene.update(dt)
 	local _
 	local P1=PLAYERS[1]
 	local GAME=GAME
-	GAME.frame=GAME.frame+1
 
 	touchMoveLastFrame=false
-
-	--Update virtualkey animation
 	updateVirtualkey()
+	GAME.frame=GAME.frame+1
 
 	--Replay
 	if GAME.replaying then
@@ -153,25 +151,8 @@ function scene.update(dt)
 		GAME.replaying=_
 	end
 
-	--Counting,include pre-das,directy RETURN,or restart counting
-	if GAME.frame<=180 then
-		if GAME.frame==180 then
-			gameStart()
-		elseif GAME.frame==60 or GAME.frame==120 then
-			SFX.play("ready")
-		end
-		for p=1,#PLAYERS do
-			local P=PLAYERS[p]
-			if P.movDir~=0 then
-				if P.moving<P.gameEnv.das then
-					P.moving=P.moving+1
-				end
-			else
-				P.moving=0
-			end
-		end
-		return
-	end
+	--Counting, include pre-das
+	if checkStart()then return end
 
 	--Update players
 	for p=1,#PLAYERS do
@@ -184,35 +165,7 @@ function scene.update(dt)
 	end
 
 	--Warning check
-	if P1.alive then
-		if GAME.frame%26==0 and SETTING.warn then
-			local F=P1.field
-			local height=0--Max height of row 4~7
-			for x=4,7 do
-				for y=#F,1,-1 do
-					if F[y][x]>0 then
-						if y>height then
-							height=y
-						end
-						break
-					end
-				end
-			end
-			GAME.warnLVL0=math.log(height-15+P1.atkBuffer.sum*.8)
-		end
-		_=GAME.warnLVL
-		if _<GAME.warnLVL0 then
-			_=_*.95+GAME.warnLVL0*.05
-		elseif _>0 then
-			_=max(_-.026,0)
-		end
-		GAME.warnLVL=_
-	elseif GAME.warnLVL>0 then
-		GAME.warnLVL=max(GAME.warnLVL-.026,0)
-	end
-	if GAME.warnLVL>1.126 and GAME.frame%30==0 then
-		SFX.fplay("warning",SETTING.sfx_warn)
-	end
+	checkWarning()
 end
 
 local function drawAtkPointer(x,y)