How do I make a player voting system?

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#1

I’ve looked on yt and devforum but can’t find anything to learn how to make a player voting system. Yes, I did look at map voting system, and I don’t think that’s the same because with map voting system, the variables/maps are already prewritten.

So how do I make a voting system? And check if anything ties?

Thanks.

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#2

I think I have an idea on how to do it, although I don’t know how it can be scripted.

What my idea would be either for people to stand on places to submit a vote, and make a script that counts and detects how many people are on the place, and then have that further use that number to determine which is the larger number and then apply that larger number’s vote into reality.

Or, a GUI could do that and detect and count the clicks, and use that to determine the larger number and apply the larger vote into reality.

#3

fire an event to all players that will cause a gui with image buttons for each player in a list, then when the player clicks on another player it will send an event to the server with the userid of the player they chose

the server will keep two dictionaries, one with the userid and a bool value of whether or not they’ve already voted, and another with the userid and then the amount of votes they received

after a timer runs out or the players all vote, the server will go through the votes dictionary and pick the highest voted, if there is a tie, choose a random player out of the tied users

#4

Yeah my plan is to use GUI. I’ve thought of the idea but I’m not sure how to continue, using RemoteEvents to communicate client-server.

My idea is to make a playerlist, but I don’t know how to count the players in there.
@kylerzong For the dictionary, what do I use as key? And how do I sort the highest vote/number in a dictionary?

#5

You would use the userid as the key
and to get the highest vote you loop through the dictionary, comparing each # with a variable of the highest vote, so if # > highest then highest = #

#6

And if it is tie? How does the script know?

#7

well if theres a tie that means multiple people have the same number, so you take the highest number and check who all has it, then put all them in a table and pick random

#8

yeah but how do you check for same number in a script? let’s say 3 people are in a tie

#9

plyr1 = 4
plyr2 = 3
plyr3 = 5
plyr4 = 5
plyr5 = 5
highest = 5
tied = {}
plyr3 == highest, insert tied, plyr3
plyr4 == highest, insert tied, plyr4
plyr5 == highest, insert tied, plyr5
winner = tied[random(1, #tied)]

#10

Server

local VoteRemote = Instance.new("RemoteEvent")
VoteRemote.Name = "VoteRemote"
VoteRemote.Parent = game.ReplicatedStorage


while wait(5) do
	local Voters = game.Players:GetPlayers()
	if #Voters <= 2 then
		print("Waiting for players")
		local Event = Instance.new("BindableEvent")
		Event.Event:Connect(function()
			Voters = game.Players:GetPlayers()
		end)
		JoinConnection = game.Players.PlayerAdded:Connect(function(Plyr)
			if #game.Players:GetPlayers() >= 3 then
				Event:Fire()
				JoinConnection:Disconnect()
			end
		end)
		Event.Event:Wait()
		Event:Destroy()
		continue
	end
	print("Starting Vote")
	for PlyrIndex = 1, #Voters do
		VoteRemote:FireClient(Voters[PlyrIndex], Voters)
	end
	local Votes = {}
	local Voted = {}
	VoteConnection = VoteRemote.OnServerEvent:Connect(function(VoteSender, VotedUserId)
		if table.find(Voters, VoteSender) == nil then return end
		if VoteSender.UserId == VotedUserId then return end
		if not Voted[VoteSender] then
			Voted[VoteSender] = true
			if Votes[VotedUserId] == nil then
				Votes[VotedUserId] = 1
			else
				Votes[VotedUserId] += 1
			end
		end
	end)
	wait(10)
	VoteConnection:Disconnect()
	print("Voting Ended")
	print(Votes)
	local Highest = {0, nil}
	local PossibleTie = false
	for i = 1, #Voters do
		if Votes[Voters[i].UserId] ~= nil then
			if (Votes[Voters[i].UserId] or 0) > Highest[1] then
				Highest = {Votes[Voters[i].UserId], Voters[i]}
			end
		end
	end
	local Tied = {}
	for i = 1, #Voters do
		if Votes[Voters[i].UserId] == Highest[1] then
			table.insert(Tied, Voters[i])
		end
	end
	if #Tied > 1 then
		print("There was a tie.")
		Highest[2] = Tied[math.random(1, #Tied)]
	end
	if Highest[1] == nil or Highest[2] == nil then
		print("No Winner.")
	else
		print("Vote Winner: "..Highest[2].Name.." with "..Highest[1].." votes.")
	end
end

Client (sends random vote)

local VoteRemote = game.ReplicatedStorage:WaitForChild("VoteRemote")
VoteRemote.OnClientEvent:Connect(function(Voters)
	local Found = table.find(Voters, game.Players.LocalPlayer)
	if Found ~= nil then
		table.remove(Voters, Found)
	end
	if #Voters >= 1 then
		print("Client -- Sending Random Vote")
		VoteRemote:FireServer(Voters[math.random(1, #Voters)].UserId) -- Auto vote a random
	end
end)

Voting.rbxl (23.1 KB)

5 Likes
Map vote and round system
#11

Hey sloth,

I’ve recently have been having troubles with the same thing, I recommend checking out the dev hub.

Read this: Data Stores | Roblox Creator Documentation

You can use datastores to make a global voting system.

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