整理代码，删掉三处goto

parts/modes/drought_l.lua

@@ -1,4 +1,4 @@
-local min=math.min
+local ins=table.insert
 return{
 	color=COLOR.red,
 	env={
@@ -26,69 +26,52 @@ return{
 					end
 					height[11]=999
 
-					local res={1,1,2,2,3,4}
+					local wei={1,1,2,2,3,4}
 					local d=0
-					local A
 					for i=1,10 do
 						d=d+height[i]
 					end
-					if d<40 or P.stat.row>2*42 then
-						A=#res+1
+					if d<40 or P.stat.row>2*42 then--Low field or almost win, give SZO
 						for _=1,4 do
-							res[A]=1
-							res[A+1]=2
-							res[A+2]=6
-							A=A+3
+							ins(wei,1)
+							ins(wei,2)
+							ins(wei,6)
 						end
-						goto END
-					end
-
-					--Give I when no hole
-					d=-999--Height difference
-					--A=hole mark
-					for x=2,11 do
-						local _=height[x]-height[x-1]
-						if d<-2 and _>2 then
-							A=true
+					else
+						--Give I when no hole
+						local tempDeltaHei=-999--Height difference
+						for x=2,11 do
+							local deltaHei=height[x]-height[x-1]
+							if tempDeltaHei<-2 and deltaHei>2 then
+								break
+							elseif x==11 then
+								for _=1,3 do ins(wei,7)end
+							else
+								tempDeltaHei=deltaHei
+							end
 						end
-						d=_
-					end
-					if not A then
-						A=#res+1
-						res[A]=7
-						res[A+1]=7
-						res[A+2]=7
-					end
 
-					--Give O when no d=0/give T when no d=1
-					d=0--d=0 count
-					A=0--d=1 count
-					for x=2,10 do
-						local _=height[x]-height[x-1]
-						if _==0 then
-							d=d+1
-						elseif _==1 or _==-1 then
-							A=A+1
+						--Give O when no d=0/give T when no d=1
+						local flatCount=0--d=0 count
+						local stairCount=0--d=1 count
+						for x=2,10 do
+							local _=height[x]-height[x-1]
+							if _==0 then
+								flatCount=flatCount+1
+							elseif _==1 or _==-1 then
+								stairCount=stairCount+1
+							end
+						end
+						if flatCount<3 then
+							for _=1,3 do ins(wei,6)end
+						end
+						if stairCount<3 then
+							for _=1,4 do ins(wei,5)end
 						end
 					end
-					if d<3 then
-						A=#res+1
-						res[A]=6
-						res[A+1]=6
-						res[A+2]=6
-					end
-					if A<3 then
-						A=#res+1
-						res[A]=5
-						res[A+1]=5
-						res[A+2]=5
-						res[A+3]=5
-						res[A+4]=5
-					end
 
-					::END::
 					FREEROW.discard(height)
-					P:getNext(res[P:RND(#res)])
+					P:getNext(wei[P:RND(#wei)])
 				end
 			end
 		end,
@@ -107,7 +90,7 @@ return{
 		local R=100-P.stat.row
 		mStr(R>=0 and R or 0,69,265)
 	end,
-	score=function(P)return{min(P.stat.row,100),P.stat.time}end,
+	score=function(P)return{math.min(P.stat.row,100),P.stat.time}end,
 	scoreDisp=function(D)return D[1].." Lines   "..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)

parts/player/player.lua

@@ -618,6 +618,10 @@ function Player.spin(P,d,ifpre)
 		SFX.fieldPlay(ifpre and"prerotate"or"rotate",nil,P)
 	end
 end
+local phyHoldKickX={
+	[true]={0,-1,1},--X==?.0 tests
+	[false]={-.5,.5},--X==?.5 tests
+}
 function Player.hold(P,ifpre)
 	local ENV=P.gameEnv
 	if P.holdTime>0 and(ifpre or P.waiting==-1)then
@@ -638,44 +642,34 @@ function Player.hold(P,ifpre)
 			end
 
 			if ENV.phyHold and C and not ifpre then--Physical hold
-				local success
 				local x,y=P.curX,P.curY
 				x=x+(#C.bk[1]-#H.bk[1])*.5
 				y=y+(#C.bk-#H.bk)*.5
 
+				local iki=phyHoldKickX[x==int(x)]
 				for Y=int(y),ceil(y+.5)do
-					local X=x
-					while true do
-						X=int(X)
+					for i=1,#iki do
+						local X=x+iki[i]
 						if not P:ifoverlap(H.bk,X,Y)then
 							x,y=X,Y
-							success=true
-							goto BREAK
-						end
-						if X==x then
-							X=X-1
-						elseif X<x then
-							X=2*x-X
-						else
-							break
+							goto BREAK_success
 						end
 					end
 				end
-				::BREAK::
-				if success then
-					P.spinLast=false
-					P.spinSeq=0
-
-					local hb=P:getBlock(C.id)
-					hb.name=C.name
-					hb.color=C.color
-					ins(P.holdQueue,hb)
-					P.cur=rem(P.holdQueue,1)
-					P.curX,P.curY=x,y
-				else
+				--<for-else> All test failed, interrupt with sound
 					SFX.play("finesseError")
-					return
-				end
+					do return end
+				--<for-end>
+
+				::BREAK_success::
+				P.spinLast=false
+				P.spinSeq=0
+				local hb=P:getBlock(C.id)
+				hb.name=C.name
+				hb.color=C.color
+				ins(P.holdQueue,hb)
+				P.cur=rem(P.holdQueue,1)
+				P.curX,P.curY=x,y
 			else--Normal hold
 				P.spinLast=false
 				P.spinSeq=0

parts/scenes/app_2048.lua

@@ -125,37 +125,38 @@ local function freshMaxTile()
 end
 local function squash(L)
 	local p1,p2=1
-	local moved
-	while p1<4 do
+	local moved=false
+	while true do
 		p2=p1+1
 		while not L[p2]do
 			p2=p2+1
 			if p2==5 then
 				p1=p1+1
-				goto continue
+				if p1==4 then
+					return L[1],L[2],L[3],L[4],moved
+				end
+				break
 			end
 		end
 		if not L[p1]then--air←2
-			L[p1]=L[p2]
+			L[p1],L[p2]=L[p2],false
 			moved=true
 		elseif L[p1]==L[p2]then--2←2
-			L[p1]=L[p1]+1
+			L[p1],L[p2]=L[p1]+1,false
 			if L[p1]>maxTile then
 				freshMaxTile()
 			end
-			moved=true
+			L[p2]=false
 			p1=p1+1
+			moved=true
 		elseif p1+1~=p2 then--2←4
-			L[p1+1]=L[p2]
-			moved=true
+			L[p1+1],L[p2]=L[p2],false
 			p1=p1+1
+			moved=true
 		else--2,4
 			p1=p1+1
 		end
-		if moved then L[p2]=false end
-		::continue::
 	end
-	return L[1],L[2],L[3],L[4],moved
 end
 local function reset()
 	for i=1,16 do board[i]=false end