How do you make an XP/Level up system?

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#1

I’m working on an RPG game, where you can complete quests and get rewards such as money and XP, when you get enough XP you can level up.
The problem is I am trying to create something where if you have enough XP you can level up.
It’s a script inside of ServerScriptService, no errors, and I probably did some obvious error I wouldn’t know about because it’s my first time trying to do something like this.

local MaxLevel = 15
game.Players.PlayerAdded:Connect(function(player)
	while player.leaderstat.Level < MaxLevel do
		if player.leaderstat.XP > player.leaderstats.Level * 49 then
				player.leaderstats.Level = player.leaderstats.Level + 1
			end
	end
end)
1 Like
#2

I’m assuming that you have placed some kind of intvalue or equivelant into leaderstats. If so you need to put .Value after XP and level.

3 Likes
#3

Yeah, I forgot to put .Value. Even after putting those it wouldn’t work

local MaxLevel = 15
game.Players.PlayerAdded:Connect(function(player)
	while player.leaderstat.Level.Value < MaxLevel do
		wait()
		if player.leaderstat.XP.Value > player.leaderstats.Level.Value * 49 then
				player.leaderstats.Level.Value = player.leaderstats.Level.Value + 1
			end
	end
end)
#4

Pretty sure you gotta name it ‘leaderstats’ not leaderstat, as well.

1 Like
#5

yeah, I’m forgetting to add some stuff sorry

local MaxLevel = 15
game.Players.PlayerAdded:Connect(function(player)
	while player.leaderstats.Level.Value < MaxLevel do
		wait()
		if player.leaderstats.XP.Value > player.leaderstats.Level.Value * 49 then
				player.leaderstats.Level.Value = player.leaderstats.Level.Value + 1
			end
	end
end)

I’m wondering, does it have to do with this?

if player.leaderstats.XP.Value > player.leaderstats.Level.Value * 49 then
#6

It depends. Does the XP ever become greater than the level*49? You could achieve this by editing the values manually via the server (not the client). Try also adding some prints to see why it isn’t working.

1 Like
#7

I got rid of the maxlevel part, and just made it this and it works

game.Players.PlayerAdded:Connect(function(player)
	while wait() do
		if player.leaderstats.XP.Value > player.leaderstats.Level.Value * 49 then
				print('working')
				player.leaderstats.Level.Value = player.leaderstats.Level.Value + 1
			end
	end
end)
#8

I use the following function whenever I add XP to the player:

function data:LevelUp()
	while self.Data.XP >= Exponentials.XPNeeded(self.Data.Level) do
		self.Data.XP = self.Data.XP - Exponentials.XPNeeded(self.Data.Level)
		self.Data.Level = self.Data.Level + 1
	end
	
	self:Update() -- update is a function to change the leaderstats
end

my usage is typically

	self.Data.XP = self.Data.XP + 100
	self:LevelUp()
4 Likes
#9

That suggests that the ‘level’ was never less than ‘max level’. Although there could be issues with syntax, not sure.

2 Likes
#10

Everyone else gave you that info, but make sure to use datastore! Roblox Developer DataStore Article

#11

I use datastore for my leaderstats

1 Like