4char padding, do proper string concat on map..checksum

leaderboard.lua

@@ -15,12 +15,27 @@ local EncoreInitial = nil
 local cv_teamchange
 local scoreTable
 
+
+-- Text flash on finish
+local FlashTics = 0
+local FlashRate
+local FlashVFlags
+local YellowFlash = {
+	[0] = V_YELLOWMAP,
+	[1] = V_ORANGEMAP,
+	[2] = 0
+}
+local RedFlash = {
+	[0] = V_REDMAP,
+	[1] = 0
+}
+
 -- Tracks if stats have been written or not
 local StatTrack = false
 
 local UNCLAIMED = "Unclaimed Record"
 local HELP_MESSAGE = "\x89Leaderboard Commands:\nretry exit findmap changelevel spba_clearcheats lb_gui rival scroll encore"
-local FILENAME = "leaderboard.txt"
+local FILENAME = "leaderboard"
 
 -- Retry / changelevel map
 local nextMap = nil
@@ -135,15 +150,36 @@ local cv_interrupt = CV_RegisterVar({
 	end
 })
 
+local function djb2(message)
+	local digest = 5381
+	for c in message:gmatch(".") do
+		digest = (($ << 5) + $) + string.byte(c)
+	end
+
+	return digest
+end
+
+local function mapChecksum(mapnum)
+	local mh = mapheaderinfo[mapnum]
+	if not mh then
+		return nil
+	end
+
+	local digest = string.format("%04x", djb2(mh.lvlttl+mh.subttl+mh.zonttl))
+	return string.sub(digest, #digest - 3)
+end
+
 local function setST(t, map, flags, scoreTable)
 	local mode = flags & ST_SEP
+	local cks = mapChecksum(map)
 	t[mode] = t[mode] or {}
-	t[mode][map] = scoreTable
+	t[mode][tostring(map)..(cks or "")] = scoreTable
 end
 
 local function getST(t, map, flags)
 	local mode = flags & ST_SEP
-	return t[mode] and t[mode][map] or nil
+	local cks = mapChecksum(map)
+	return t[mode] and t[mode][tostring(map)..(cks or "")] or nil
 end
 
 local function setScoreTable(map, flags, scoreTable)
@@ -207,7 +243,7 @@ local cv_spb_separate = CV_RegisterVar({
 	end
 })
 
-local function score_t(map, name, skin, color, time, splits, flags, stat)
+local function score_t(map, name, skin, color, time, splits, flags, stat, checksum)
 	return {
 		["map"]    = map,
 		["name"]   = name,
@@ -216,7 +252,8 @@ local function score_t(map, name, skin, color, time, splits, flags, stat)
 		["time"]   = time,
 		["splits"] = splits,
 		["flags"]  = flags,
-		["stat"] = stat
+		["stat"] = stat,
+		["checksum"] = checksum
 	}
 end
 
@@ -238,12 +275,47 @@ local function stat_str(stat)
 	return "0"
 end
 
+local function writeScore(fh, score)
+	fh:write(
+		score["map"], "\t",
+		score["name"], "\t",
+		score["skin"], "\t",
+		score["color"], "\t",
+		score["time"], "\t",
+		table.concat(score["splits"], " "), "\t",
+		score["flags"], "\t",
+		stat_str(score["stat"]), "\t",
+		score["checksum"], "\n"
+	)
+end
+
+local function saveScores()
+	local f = assert(io.open(FILENAME + ".txt", "w"))
+	if f == nil then
+		print("Failed to open file for writing: " + FILENAME + ".txt")
+		return
+	end
+
+	for _, tbl in pairs(lb) do
+		for _, scoreTable in pairs(tbl) do
+			for _, score in ipairs(scoreTable) do
+				writeScore(f, score)
+			end
+		end
+	end
+
+	f:close()
+end
+
 -- Read the leaderboard
-local f = io.open(FILENAME, "r")
+local f = io.open(FILENAME + ".txt", "r")
 if f then
+	-- track if scores checksums have been written
+	local checksumWrite = false
+
 	for l in f:lines() do
 		-- Leaderboard is stored in the following tab separated format
-		-- mapnum, name, skin, color, time, splits, flags, stat
+		-- mapnum, name, skin, color, time, splits, flags, stat, map_checksum
 		local t = {}
 		for word in (l+"\t"):gmatch("(.-)\t") do
 			table.insert(t, word)
@@ -272,17 +344,41 @@ if f then
 			end
 		end
 
+		local mapnum = tonumber(t[1])
+
+		-- Checksums
+		local cks = t[9] 
+
+		if cks == nil then
+			checksumWrite = true
+			cks = mapChecksum(mapnum)
+
+			-- We have no previous recognition of this map
+			-- remove it
+			if cks == nil then
+				local rsfh = io.open(FILENAME + "_removed_scores.txt", "a")
+				if not rsfh then
+					print("Failed to open file: ", FILENAME + "_removed_scores.txt")
+					continue
+				end
+				rsfh:write(l, "\n")
+				rsfh:close()
+				continue
+			end
+		end
+
 		table.insert(
 			scoreTable,
 			score_t(
-				tonumber(t[1]),
+				mapnum,
 				t[2],
 				t[3],
 				t[4],
 				tonumber(t[5]),
 				spl,
 				flags,
-				stats
+				stats,
+				cks
 			)
 		)
 
@@ -291,8 +387,13 @@ if f then
 
 	sortScores()
 	f:close()
+
+	-- save scores
+	if checksumWrite then
+		saveScores()
+	end
 else
-	print("Failed to open file: ", FILENAME)
+	print("Failed to open file: ", FILENAME + ".txt")
 end
 
 function allowJoin(v)
@@ -310,23 +411,27 @@ function allowJoin(v)
 	end
 end
 
-local function ingame()
+-- Returns true if there is a single player ingame
+local function singleplayer()
 	local n = 0
 	for p in players.iterate do
 		if p.valid and not p.spectator then
 			n = $ + 1
+			if n > 1 then
+				return false
 			end
 		end
-	return n
+	end
+	return true
 end
 
 local function initLeaderboard(player)
 	if disable and leveltime < START_TIME then
-		disable = ingame() > 1
+		disable = not singleplayer()
 	else
-		disable = disable or ingame() > 1
+		disable = disable or not singleplayer()
 	end
-	disable = $ or not cv_enable.value
+	disable = $ or not cv_enable.value or not (maptol & (TOL_SP | TOL_RACE))
 
 	-- Restore encore mode to initial value
 	if disable and EncoreInitial != nil then
@@ -339,7 +444,7 @@ end
 addHook("PlayerSpawn", initLeaderboard)
 
 local function doyoudare(player)
-	if ingame() > 1 or player.spectator then
+	if not singleplayer() or player.spectator then
 		CONS_Printf(player, "How dare you")
 		return false
 	end
@@ -366,10 +471,6 @@ COM_AddCommand("exit", exitlevel)
 
 local function findMap(player, ...)
 	local search = ...
-	if search == nil then 
-
-		return
-	end
 
 	local hell = "\x85HELL"
 	local tol = {
@@ -378,7 +479,22 @@ local function findMap(player, ...)
 		[TOL_RACE] = "\x88Race\x80",
 		[TOL_MATCH] = "\x87\Battle\x80"
 	}
-	local lvltype, map
+	local lvltype, map, lvlttl
+
+	local zoneAct = function(zone, act, levelflags)
+		local z = ""
+		if zone != "" then
+			z = " " + zone
+		elseif not(levelflags & LF_NOZONE) then
+			z = " Zone"
+		end
+		if act != "" then
+			z = $ + " " + act
+		end
+
+		return z
+	end
+
 
 	for i = 1, #mapheaderinfo do
 		map = mapheaderinfo[i]
@@ -386,20 +502,24 @@ local function findMap(player, ...)
 			continue
 		end
 
-		if map.lvlttl:lower():find(search:lower()) then
+		lvlttl = map.lvlttl + zoneAct(map.zonttl, map.actnum, map.levelflags)
+
+		if not search or lvlttl:lower():find(search:lower()) then
 			-- Only care for up to TOL_MATCH (0x10)
 			lvltype = tol[map.typeoflevel & 0x1F] or map.typeoflevel
 
 			-- If not battle print numlaps
-			lvltype = (map.typeoflevel & (TOL_MATCH | TOL_COOP) and lvltype) or string.format("%s \x82%-2d\x80", lvltype, map.numlaps)
+			lvltype = (map.typeoflevel & (TOL_MATCH | TOL_COOP) and lvltype)
+				or string.format("%s \x82%-2d\x80", lvltype, map.numlaps)
+
 
 			CONS_Printf(
 				player,
 				string.format(
-					"%s %-9s %-25s - %s\t%s",
+					"%s %-9s %-30s - %s\t%s",
 					G_BuildMapName(i),
 					lvltype,
-					map.lvlttl,
+					lvlttl,
 					map.subttl,
 					(map.menuflags & LF2_HIDEINMENU and hell) or ""
 				)
@@ -687,6 +807,7 @@ addHook("MapLoad", function()
 		drawState = DS_DEFAULT
 		scrollY = 50 * FRACUNIT
 		scrollAcc = 0
+		FlashTics = 0
 
 		allowJoin(true)
 		--printTable(lb)
@@ -779,10 +900,11 @@ local FACERANK_DIM = 16
 local FACERANK_SPC = FACERANK_DIM + 4
 local function drawScore(v, player, pos, x, y, gui, faceRank, score, drawPos, textVFlags)
 	textVFlags = textVFlags or V_HUDTRANSHALF
+	local me = player.name == score["name"]
 
 	--draw Patch/chili
 	v.draw(x, y, faceRank, V_HUDTRANS | VFLAGS, v.getColormap("sonic", score["color"]))
-	if player.name == score["name"] then
+	if me then
 		v.draw(x, y, PATCH["CHILI"][(leveltime / 4) % 8], V_HUDTRANS | VFLAGS)
 	end
 
@@ -794,7 +916,7 @@ local function drawScore(v, player, pos, x, y, gui, faceRank, score, drawPos, te
 			bob + (y + FACERANK_DIM / 2) * FRACUNIT,
 			FRACUNIT / 6,
 			PATCH["RUBY"],
-			V_HUDTRANS
+			V_HUDTRANS | VFLAGS
 		)
 	end
 
@@ -878,11 +1000,16 @@ local function drawScore(v, player, pos, x, y, gui, faceRank, score, drawPos, te
 			end
 		end
 
+		local flashV = 0
+		if me and FlashTics > leveltime then
+			flashV = FlashVFlags[leveltime / FlashRate % (#FlashVFlags + 1)]
+		end
+
 		v.drawString(
 			x + FACERANK_DIM + px,
 			y + py,
 			name,
-			textVFlags | V_ALLOWLOWERCASE | VFLAGS,
+			textVFlags | V_ALLOWLOWERCASE | VFLAGS | flashV,
 			stralign
 		)
 
@@ -900,7 +1027,7 @@ local function drawScore(v, player, pos, x, y, gui, faceRank, score, drawPos, te
 				x + px + FACERANK_DIM,
 				y + 8,
 				ticsToTime(score["time"], true),
-				textVFlags | bodium[min(pos, 4)] | VFLAGS
+				textVFlags | bodium[min(pos, 4)] | VFLAGS | flashV
 			)
 		end
 	end
@@ -1088,7 +1215,8 @@ local function saveTime(player)
 		timeFinished,
 		splits,
 		Flags,
-		stat_t(player.HMRs or pskin.kartspeed, player.HMRw or pskin.kartweight)
+		stat_t(player.HMRs or pskin.kartspeed, player.HMRw or pskin.kartweight),
+		mapChecksum(gamemap)
 	)
 
 	-- Check if you beat your previous best
@@ -1097,10 +1225,16 @@ local function saveTime(player)
 			if lbComp(newscore, scoreTable[i]) then
 				table.remove(scoreTable, i)
 				S_StartSound(nil, 130)
+				FlashTics = leveltime + TICRATE * 3
+				FlashRate = 1
+				FlashVFlags = YellowFlash
 				break
 			else
 				-- You suck lol
 				S_StartSound(nil, 201)
+				FlashTics = leveltime + TICRATE * 3
+				FlashRate = 3
+				FlashVFlags = RedFlash
 				scroll_to(player)
 				return
 			end
@@ -1127,30 +1261,7 @@ local function saveTime(player)
 		StatTrack = true
 	end
 
-	local f = assert(io.open(FILENAME, "w"))
+	saveScores()
-	if f == nil then
-		print("Failed to open file for writing: " + FILENAME)
-		return
-	end
-
-	for _, tbl in pairs(lb) do
-		for _, scoreTable in pairs(tbl) do
-			for _, score in ipairs(scoreTable) do
-				f:write(
-					score["map"], "\t",
-					score["name"], "\t",
-					score["skin"], "\t",
-					score["color"], "\t",
-					score["time"], "\t",
-					table.concat(score["splits"], " "), "\t",
-					score["flags"], "\t",
-					stat_str(score["stat"]), "\n"
-				)
-			end
-		end
-	end
-
-	f:close()
 end
 
 -- DEBUGGING
@@ -1187,7 +1298,7 @@ local function think()
 
 	if disable then
 		if AntiAFK then
-			if ingame() > 1 then
+			if not singleplayer() then
 				for p in players.iterate do
 					if p.valid and not p.spectator and not p.exiting and p.lives > 0 then
 						if p.cmd.buttons then
@@ -1224,7 +1335,7 @@ local function think()
 	if leveltime < START_TIME then
 		-- Help message
 		if leveltime == START_TIME - TICRATE * 3 then
-			if ingame() == 1  then
+			if singleplayer()  then
 				if help then
 					help = false
 					chatprint(HELP_MESSAGE, true)