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How do I use a global variable?

Asked by
Danielathan 2
4 years ago
Edited by royaltoe 4 years ago

I'm trying to make a "button" that, when stepped on, causes another invisible platform to appear. I'm attempting to use a global variable to make it work, but I can't seem to get it. I've pasted the code from my two parts below:

Invisible block:


local visibility = game.Workspace.Platform.Transparency
local Platform = game.Workspace.Platform
local transparent = true

function isTouched()
    print("hello")
    transparent = false
    game.Workspace.Platform.Transparency = 0
    wait(1)
    game.Workspace.Platform.Transparency = 1
end
game.Workspace.Platform.Touched:Connect(isTouched)

while transparent == true do
    game.Workspace.Platform.Transparency = 1
end

while _G.activated == true do
    print("On")
    game.Workspace.Platform.Transparency = 0
end


Button:

_G.activated = false

function isTouched()
    print("hi")
    _G.activated = true
    wait(1)
    _G.activated = false
end
game.Workspace.Button.Touched:Connect(isTouched)

any advice would be appreciated. Thanks!

1 answer

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Answered by
cowsoncows 951 Moderation Voter
4 years ago

The issue here isn't with the global variable; it's with your while loops. Currently the way you have it set up, it will keep looping until your condition is false. Once the condition is false, the loop stops and won't start again, even when the condition becomes true again.

What you could do instead is have checks inside of the loop, like this:

while wait() do
    if transparent == true then
        game.Workspace.Platform.Transparency = 1
    end

    if _G.activated == true then
        print("On")
        game.Workspace.Platform.Transparency = 0
    end
end
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