Roblox How to detect a player's team - lua

I am making a Roblox game, and I need to detect a player's team somehow.
My code currently looks like this:
script.Parent.Touched:Connect(function(part)
local plr = part.Parent.Name
if (game.Players:FindFirstChild(plr).Team == "Police") then
....
end
end)
And when I touch that part (it's an invisible wall), it gives me an error: Workspace.Part.Script:3: attempt to index a nil value
What am I doing wrong?
Edit: I found out it can't find my name in game.Players, because now I tried:
script.Parent.Touched:Connect(function(hit)
local plr = game.Players:FindFirstChild(hit.Parent.Name)
if (plr.Team == "Police") then
...
And now I get Workspace.Part.Script:3: attempt to index local 'plr' (a nil value)
Edit2: Now I tried printing plr (game.Player:FindFirstChild(hit.Parent.Name)) and it was ' Miniller', not 'Miniller', and now I didn't get any errors, but the code below also did nothing..

I solved it by not using variables AND not "Police", it's game.Teams.Police, so code:
if (game.Players:FindFirstChild(hit.Parent.Name).Team = game.Teams.Police
...

Related

attempt to index nil with 'Character' Error Roblox Studio

Hello i am trying to get the position of the HumanoidRootPart but it says attempt to index nil with 'Character' also the FollowPlrbox has the players name.(This not a local script)
Script:
script.Parent.MouseButton1Click:Connect(function()
local fwbox = script.Parent.Parent.FollowPlrbox.Text
local player = game.Workspace:FindFirstChild(fwbox)
local plrpart = player.Character:FindFirstChild("HumanoidRootPart")
local plrposx = plrpart.Position.X
print(plrposx)
end)
Error:
attempt to index nil with 'Character'
Your error is telling you that player doesn't exist. This could mean that whatever you have typed for the player's name is misspelled, incorrect capitalization, or there's simply no player with that name.
Anyways, you need to account for the fact that the player might not exist before trying to access properties on it. Also, since you are searching the Workspace, you are not looking for a Player, you are looking for that player's character model.
So to fix your issue, you simply need to add safety checks.
script.Parent.MouseButton1Click:Connect(function()
local fwbox = script.Parent.Parent.FollowPlrbox.Text
local character = game.Workspace:FindFirstChild(fwbox)
if character then
local rootPart = character:FindFirstChild("HumanoidRootPart")
if rootPart then
local rootPartPosX = rootPart.Position
print(rootPartPosX)
end
end
end)
The reason we add if character then and if rootPart then is because it's possible that the FindFirstChild() function won't find anything. So we say, only do the rest of this code if character exists.

Roblox Lua - attempt to index nil with 'stats' (leaderstats)

i want to make this, when the baseFinal is touched by a block (Bloque) it gives you money and the block is destroyed. it gives me an error: attempt to index nil with 'stats'
local base = script.Parent.Base
local baseFinal = script.Parent.Final
local plr = game.Players.LocalPlayer
baseFinal.Touched:Connect(function(hit)
if hit.Name == "Bloque" then
wait(0.6)
plr.stats.Value = plr.stats.Value + 5 // here is the error
hit:Destroy()
end
end)
The error is telling you that the plr variable is undefined or nil.
Since this code is running in a Script, the issue is how you are accessing the Player object. See the documentation for Players.LocalPlayer :
This property is only defined for LocalScripts (and ModuleScripts required by them), as they run on the client. For the server (on which Script objects run their code), this property is nil.
The way to fix this is to access the Player object another way. One way is to connect to the Players.PlayerAdded signal.
local base = script.Parent.Base
local baseFinal = script.Parent.Final
local connections = {}
game.Players.PlayerAdded:Connect( function(plr)
-- listen for Players to touch the block
local connection = baseFinal.Touched:Connect( function(hit)
if hit.Name == "Bloque" then
wait(0.6)
plr.stats.Money.Value = plr.stats.Money.Value + 5
hit:Destroy()
end
end)
-- hold onto the connection to clean it up later
connections[plr] = connection
end)
-- clean up when the Player leaves
game.Players.PlayerRemoving:Connect( function(plr)
connections[plr]:Disconnect()
end)
This is most likely because when you are trying to reference a value, you must put .Value after it in order to change the value itself. Assuming you have a stats folder, you should use plr.stats.Value.Value instead.
Next time, please show us your object structure so we have a better understanding of what the error is. Thanks.

attempt to index global 'message' (a nil value) Lua Message script

Currently, I'm working on a simple Lua Roblox script that is supposed to turn the parent part blue when "/blue" is entered in the chat by ANY player. When run, it returns the error "attempt to index global 'message' (a nil value)" in the output. Also, when I hover my cursor over "message" it says "unknown global 'message'". I am sure I'm doing something terribly wrong as I am new to the language. I have tried moving the script into Workspace and Chat (of course changing local part when I do) but those don't help. I'm confident it's a code issue specifically defining a global variable.
local part = script.Parent
local function scan()
if message:sub(1,5) == "/blue" then
part.BrickColor = BrickColor.Blue()
end
end
scan()
First, you didn't define "message" because "message" is supposed to be an argument of
player.Chatted()
So instead of just running scan(), make multiple functions, here is the revised code:
local part = script.Parent
game.Players.PlayerAdded:Connect(function(plr)
plr.Chatted:Connect(function(message)
message = string.lower(message)
if message == "/blue" then
part.BrickColor = BrickColor.new("Blue")
end
end)
end)
Let me know if you need me to elaborate, I understand that sometimes this stuff can be confusing.

How to fix an end expected error near eof

I made a cash for kill script in Roblox, but wanted to go further than that and implement a script where when a player has a gamepass, then that player would recieve more cash than another normal player would.
This is for a battle royale styled game in Roblox, and when I playtested it, there were no errors, but the script didn't work.
game.Players.PlayerAdded:connect(function(player)
local folder = Instance.new("Folder",player)
folder.Name = "leaderstats"
local currency1 = Instance.new("IntValue",folder)
currency1.Name = "Cash"
local increment = 50
if game:GetService("MarketplaceService"):PlayerOwnsAsset(player,7382818)then
increment = increment + 50
end
player:WaitForChild("Humanoid").Died:connect(function()
local tag = player.Humanoid:FindFirstChild("creator")
if tag ~= nil then
local killer = tag.Value
if killer ~= nil then
-- Find the killer's leaderstats folder
local killerStats = killer:FindFirstChild("leaderstats")
if killerStats ~= nil then
-- Find the killer's Cash IntValue
local killerCash = killerStats:FindFirstChild("Cash")
-- Increase cash as before
killerCash.Value = killerCash.Value + increment
end
end
end
end)
I expected a VIP player, who has the gamepass, to receive more cash, but when I tested it, no player received any cash for killing another player at all.
How to fix an end expected error near eof
If the Lua interpreter complains about a missing end you`re missing it somewhere.
Read through your code and make sure everything that is supposed to be closed with an end has one. Read through the Lua Reference Manual to find out which keywords need an end.
In your code it's if statements and function definitions. Checking each pair from inside out you'll end up one end) short to close this game.Players.PlayerAdded:connect(function(player) as mentioned in the comments.

attempt to index field 'LocalPlayer' (a nil value)

i have been trying to fix this problem in my game:
"attempt to index field 'LocalPlayer' (a nil value)"
but nothing i tried to do worked
here is the code:
please do not mind the extremely un-efficient lines of code
local player = game.Players.LocalPlayer
script.Parent.Humanoid.Died:Connect(function()
print("yeet")
script.Parent.Parent.Parent.Players.LocalPlayer.leaderstats.PuzzlePieces.Value = script.Parent.Parent.Parent.Players.LocalPlayer.leaderstats.PuzzlePieces.Value + 1
end)
and this is the error message i get:
attempt to index field 'LocalPlayer' (a nil value)
LocalPlayer can only be used in localscripts, and if you are changing leaderstats, you would need to use remotefunctions if your using the localplayer way, or you could use a script and then detect is a player dies and give them a leaderstat value.
PS. If your into roblox I very well recommand https://scriptinghelpers.org/, it is a great roblox scripting Q&A.

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