新增无摩擦模式（隐藏，入口位于设置语音处立绘）

parts/modes/sprintSmooth.lua

@@ -0,0 +1,31 @@
+return{
+	color=COLOR.green,
+	env={
+		drop=0,lock=120,
+		nextCount=3,
+		das=0,arr=0,
+		dropPiece=function(P)if P.stat.row>=40 then P:win('finish')end end,
+		bg='aura',bgm='waterfall',
+	},
+	load=function()
+		PLY.newPlayer(1)
+	end,
+	mesDisp=function(P)
+		setFont(55)
+		local r=40-P.stat.row
+		if r<0 then r=0 end
+		mStr(r,69,265)
+		PLY.draw.drawTargetLine(P,r)
+	end,
+	getRank=function(P)
+		if P.stat.row<40 then return end
+		local T=P.stat.time
+		return
+		T<=40 and 5 or
+		T<=50 and 4 or
+		T<=70 and 3 or
+		T<=100 and 2 or
+		T<=150 and 1 or
+		0
+	end,
+}