Implemented plate generation from esx_migrate

client/utils.lua

@@ -0,0 +1,69 @@
+local NumberCharset = {}
+local Charset = {}
+
+for i = 48,  57 do table.insert(NumberCharset, string.char(i)) end
+
+for i = 65,  90 do table.insert(Charset, string.char(i)) end
+for i = 97, 122 do table.insert(Charset, string.char(i)) end
+
+function GeneratePlate()
+	local generatedPlate
+	local doBreak = false
+
+	while true do
+		Citizen.Wait(2)
+		math.randomseed(GetGameTimer())
+		if Config.PlateUseSpace then
+			generatedPlate = string.upper(GetRandomLetter(Config.PlateLetters) .. ' ' .. GetRandomNumber(Config.PlateNumbers))
+		else
+			generatedPlate = string.upper(GetRandomLetter(Config.PlateLetters) .. GetRandomNumber(Config.PlateNumbers))
+		end
+
+		ESX.TriggerServerCallback('esx_vehicleshop:isPlateTaken', function (isPlateTaken)
+			if not isPlateTaken then
+				doBreak = true
+			end
+		end, generatedPlate)
+
+		if doBreak then
+			break
+		end
+	end
+
+	return generatedPlate
+end
+
+-- mixing async with sync tasks
+function IsPlateTaken(plate)
+	local callback = 'waiting'
+
+	ESX.TriggerServerCallback('esx_vehicleshop:isPlateTaken', function (isPlateTaken)
+		callback = isPlateTaken
+	end, plate)
+
+	while type(callback) == 'string' do
+		Citizen.Wait(0)
+	end
+
+	return callback
+end
+
+function GetRandomNumber(length)
+	Citizen.Wait(1)
+	math.randomseed(GetGameTimer())
+	if length > 0 then
+		return GetRandomNumber(length - 1) .. NumberCharset[math.random(1, #NumberCharset)]
+	else
+		return ''
+	end
+end
+
+function GetRandomLetter(length)
+	Citizen.Wait(1)
+	math.randomseed(GetGameTimer())
+	if length > 0 then
+		return GetRandomLetter(length - 1) .. Charset[math.random(1, #Charset)]
+	else
+		return ''
+	end
+end