modeData地位提升，模式环境变量target移入其中，大规模整理代码，可读性增强

parts/modes/survivor_h.lua

@@ -7,20 +7,21 @@ return{
 			while true do
 				YIELD()
 				if P.control and SCN.cur=="play"then
-					P.modeData.counter=P.modeData.counter+1
+					local D=P.modeData
+					D.timer=D.timer+1
 					local B=P.atkBuffer
-					if P.modeData.counter>=math.max(60,180-2*P.modeData.event)and B.sum<15 then
+					if D.timer>=math.max(60,180-2*D.wave)and B.sum<15 then
 						B[#B+1]=
-							P.modeData.event%3<2 and
+							D.wave%3<2 and
 								{line=generateLine(P:RND(10)),amount=1,countdown=0,cd0=0,time=0,sent=false,lv=1}
 							or
 								{line=generateLine(P:RND(10)),amount=3,countdown=60,cd0=60,time=0,sent=false,lv=2}
-						local R=(P.modeData.event%3<2 and 1 or 3)
+						local R=(D.wave%3<2 and 1 or 3)
 						B.sum=B.sum+R
 						P.stat.recv=P.stat.recv+R
-						if P.modeData.event==60 then P:showTextF(text.maxspeed,0,-140,100,"appear",.6)end
-						P.modeData.counter=0
-						P.modeData.event=P.modeData.event+1
+						if D.wave==60 then P:showTextF(text.maxspeed,0,-140,100,"appear",.6)end
+						D.timer=0
+						D.wave=D.wave+1
 					end
 				end
 			end
@@ -33,14 +34,14 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(65)
-		mStr(P.modeData.event,69,310)
+		mStr(P.modeData.wave,69,310)
 		mText(drawableText.wave,69,375)
 	end,
-	score=function(P)return{P.modeData.event,P.stat.time}end,
+	score=function(P)return{P.modeData.wave,P.stat.time}end,
 	scoreDisp=function(D)return D[1].." Waves   "..TIMESTR(D[2])end,
 	comp=function(a,b)return a[1]>b[1]or a[1]==b[1]and a[2]<b[2]end,
 	getRank=function(P)
-		local W=P.modeData.event
+		local W=P.modeData.wave
 		return
 		W>=90 and 5 or
 		W>=60 and 4 or