重构next和hold系统，支持多next

parts/modes/custom_clear.lua

@@ -50,41 +50,41 @@ return{
 	env={},
 	load=function()
 		for k,v in next,CUSTOMENV do
-			modeEnv[k]=v
+			MODEENV[k]=v
 		end
 		if BAG[1]then
-			modeEnv.bag=BAG
+			MODEENV.bag=BAG
 		else
-			modeEnv.bag=nil
+			MODEENV.bag=nil
 		end
 		if MISSION[1]then
-			modeEnv.mission=MISSION
+			MODEENV.mission=MISSION
 		else
-			modeEnv.mission=nil
+			MODEENV.mission=nil
 		end
-		modeEnv.dropPiece=PLY.check_lineReach
+		MODEENV.dropPiece=PLY.check_lineReach
 		for y=1,20 do
 			if notAir(FIELD[1][y])then
 				--Switch clear mode on
-				modeEnv.dropPiece=checkClear
+				MODEENV.dropPiece=checkClear
 				break
 			end
 		end
 		PLY.newPlayer(1,340,15)
-		local L=modeEnv.opponent
+		local L=MODEENV.opponent
 		if L~=0 then
-			modeEnv.target=nil
+			MODEENV.target=nil
 			if L<6 then
 				PLY.newAIPlayer(2,965,360,.5,AIBUILDER("9S",2*L))
 			else
-				PLY.newAIPlayer(2,965,360,.5,AIBUILDER("CC",2*L-11,int(L*.5-1.5),modeEnv.hold,4000*L))
+				PLY.newAIPlayer(2,965,360,.5,AIBUILDER("CC",2*L-11,int(L*.5-1.5),MODEENV.hold,4000*L))
 			end
 		end
 		for _,P in next,PLAYERS.alive do
 			setField(P,1)
 		end
-		modeEnv.bg=CUSTOMENV.bg
-		modeEnv.bgm=CUSTOMENV.bgm
+		MODEENV.bg=CUSTOMENV.bg
+		MODEENV.bgm=CUSTOMENV.bgm
 	end,
 	mesDisp=function(P)
 		setFont(55)