Why is my simple admin checking script with a bindable function not working?
So this is a simple script where a player steps on a brick and it checks to see if it is an admin or not. If the player is not an admin, they die. If the player is, the brick turns yellow. I wrote the script corresponding to a scripting tutorial: https://www.youtube.com/watch?v=jQ0iClyt_zA&t=312s
Here is the script with the bindable function and list of admins:
admins = {"crystalclay", "Player1", "Player2", "John", "Bob"}
script.GetList.OnInvoke = function(name)
isAdmin = false
for i,v in pairs (admins) do
if name == v then
isAdmin = true
break
end
end
if isAdmin == true then
return true
else
return false
end
end
The problem with this script is that, on line 4, the first "isAdmin" is underlined in blue.
Here is the script for the part:
script.Parent.Touched:connect(function(hit)
humanoid = hit.Parent:FindFirstChild("Humanoid") -- The first "humanoid" is underlined in blue
if humanoid then
playerName = hit.Parent.Name -- "playerName" is underlined in blue
isAdmin = game.Workspace.ListoAdmins.GetList:Invoke(playerName) -- "isAdmin" is underlined in blue
if isAdmin == true then
Part.BrickColor = BrickColor.new("Bright Yellow") --"Part" is underlined in blue
else
humanoid.Health = 0
end
end
end)
I do not understand why there are blue underlines as I double checked and typed the script exactly as Peaspod did in this video.
Here is the error message I'm getting: 21:51:31.537 - Workspace.Part.Script:7: attempt to index global 'Part' (a nil value)
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1 answer
Since you wanted an explanation, Part was underlined in blue because it wasn't defined anywhere in the script. If you had added local Part = script.Parent at the beginning of your second script, it would have worked.
As for your other blue underlines, this typically happens because it defined globally instead of locally (eg. isAdmin = blah instead of local isAdmin = blah). It is recommended to define variables locally wherever and whenever possible because a) it takes less time to access local variables, and b) global variables are shared between different "scopes". For example:
function a()
g = 2
end
function b()
print(g)
end
a()
b() -- prints 2, even though g wasn't defined anywhere inside b().
function c()
local l = 2
end
function d()
print(l)
end
c()
d() -- prints nil, because l wasn't defined in d()'s scope. This is clear.
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