How can I enable a script when a player touches a brick?

Do this [Make sure screengui is placed in that part. And make sure screengui is disabled and your label is visible.

function touch(hit)

    if game.Players:findFirstChild(hit.Parent.Name) ~= nil then

        player = game.Players[hit.Parent.Name]

        if player.PlayerGui:findFirstChild("here") == nil then -- change here to ur screengui name

            gui = script.Info:clone()

            gui.Parent = player.PlayerGui

            repeat

                wait() 

            until (player.Character.Torso.Position - script.Parent.Position).magnitude > 5

            gui:remove()

        end

    end 

end



script.Parent.Touched:connect(touch)

All these scripts the code in them is to connect the script to start

You actually can't enable/disable a script once the game starts with the properties, it just determines if it will be enabled or disabled once the game does start.

Instead, I think you might want to consider just having the script you want to enable have a function that only get's called when the part get's touched? If the script had like a loop or something that you want to run after the part get's touched you could have the touched function set a bool value to true and let the loop run from there.

local enable = false --bool value for if the loop is enabled

part.Touched:Connect(function(hit)
    local h = hit.Parent:FindFirstChild("Humanoid")
    if h~=nil then
        enabled = true --set enabled to true, which would let a loop run
        --alternatively if the script just needed to do something once you could just call a function here 
        script()
    end
end)

while (enabled == true) do
    --whatever the loop you had in the other script did
end

function script()
    --whatever the script needs to do
end

I think this would be a much cleaner way to go about solving your problem then trying to enable/disable scripts, and I hope it helps!

You can't really run a script after enabling it. While the other 2 answers will work, here's another way. You can use the loadstring() global function. What it does is the string in the parameter of the function will be converted into a function. And if you run that function, it will actually do something. For example:

local printSomething = loadstring("print('Something')")
printSomething() -- prints "Something"

So the solution for this method is to type the quotation marks inside the parameter first, then inside the quotation marks, paste your code, and call it as a function.

local doCode = loadstring(" paste your code here ")
doCode()

But it's not recommended to enable this function because hackers can easily run a hack module in your game using that function.