整理代码，略微优化性能，调整玩家攻击力和框颜色相关代码，联网对战每分钟会增加攻击力

parts/modes/netBattle.lua

@@ -1,3 +1,4 @@
+local yield=YIELD
 return{
 	color=COLOR.white,
 	env={
@@ -6,6 +7,13 @@ return{
 		pushSpeed=5,
 		garbageSpeed=2,
 		allowMod=false,
+		task=function(P)
+			local S=P.stat
+			while true do yield()if S.time>60 then P.strength=1 break end end
+			while true do yield()if S.time>120 then P.strength=2 break end end
+			while true do yield()if S.time>180 then P.strength=3 break end end
+			while true do yield()if S.time>240 then P.strength=4 break end end
+		end,
 		bgm={'battle','cruelty','distortion','far','final','hope','magicblock','new era','push','race','rockblock','secret7th','secret8th','shining terminal','storm','super7th','warped','waterfall'},
 	},
 	load=function()