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How can a script access a variable thats in another script?

Asked by

GottaHaveAFunTime 218

7 years ago

I have a script that plays a song and when it does it has a variable called tempo. The tempo changes depending on the song. And I am trying to let tempo be accessed in another script but it says unknown global?

Theres the first script, tempo is only in the first block with Mr Blue Sky

01local MrBlueSky = 862680756
02local Believer = 685388224
03local HowFarItGoes = 1058515832
04local music = script.Parent
05local musictitle = script.Parent.MusicName.MusicTeller.MusicTitle
06local tempo = wait()
07 
08while true do
09    wait()
10    musicpicker = math.random(1,3)
11    if musicpicker == 1 then
12        musictitle.Text = "ELO - Mr Blue Sky"
13        music.SoundId = "rbxassetid://"..MrBlueSky
14        music:Play()
15        music.PlaybackSpeed = 1
16        music.Volume = 2
17        tempo = wait(.3)
18        music.Ended:wait()
19        wait(3)
20    end
21    if musicpicker == 2 then
22        musictitle.Text = "Imagine Dragons - Believer"
23        music.SoundId = "rbxassetid://"..Believer
24        music:Play()
25        music.PlaybackSpeed = 1
26        music.Volume = 2
27        music.Ended:wait()
28        wait(3)
29    end
30    if musicpicker == 3 then
31        musictitle.Text = "Moana - How Far I'll Go"
32        music.SoundId = "rbxassetid://"..HowFarItGoes
33        music:Play()
34        music.PlaybackSpeed = 0.673
35        music.Volume = 2.5
36        music.Ended:wait()
37        wait(3)
38    end
39end
 View all 39 lines...

01brick = script.Parent
02 
03while true do
04    color = math.random(1,5)
05    if color == 1 then
06        brick.BrickColor = BrickColor.new(196/255, 40/255, 28/255) -- Bright Red
07            wait(tempo)
08    end
09    if color == 2 then
10        brick.BrickColor = BrickColor.new(4/255, 175/255, 236/255) -- Cyan
11            wait(tempo)
12    end
13    if color == 3 then
14        brick.BrickColor = BrickColor.new(52/255, 142/255, 64/255) -- Sea Green 
15            wait(tempo)
16    end
17    if color == 4 then
18        brick.BrickColor = BrickColor.new(123/255, 47/255, 123/255) -- Plum
19            wait(tempo)
20    end
21    if color == 5 then
22        brick.BrickColor = BrickColor.new(218/255, 133/255, 65/255) -- Bright Orange
23            wait(tempo)
24    end
25end
 View all 25 lines...

Tempo is blue in this script and there both scripts not local scripts so I figured they could access each other. But they cant and I am a little confused on it.

The easy way to do this would be to just make a NumberValue so that both scripts are able to see it and set its value if necessary. Just be sure it's not somewhere that an exploiter can interact with it. Troidit 253 — 7y

AHHH NOT LOCAL VARIABLES THAT MAKE THE SCRIPT WASTE MORE TIME FINDING GLOBALS hiimgoodpack 2009 — 7y

1 answer

Answered by

Troidit 253

7 years ago

Edited 7 years ago

There are two main ways to create a variable that other scripts can see.

The first and easiest method would be to make a NumberValue and put it somewhere easy for both scripts to access it. From there you could simply call it Tempo.

1--Script 1
2Tempo = script.Parent.Tempo
3 
4Tempo.Value = 1

So in script 2

1--Script 2
2Tempo = script.Parent.Tempo
3 
4print(Tempo.Value) -- outputs 1

On the other hand, you can also use the global table _G.

1--Script 1
2 
3_G.Tempo = 1

So in script 2

1--Script 2
2 
3print(_G.Tempo)

SOURCES http://wiki.roblox.com/index.php?title=Global_namespace/Basic_functions http://wiki.roblox.com/index.php?title=API:Class/NumberValue

Thanks my dude :) GottaHaveAFunTime 218 — 7y

why not BindableEvents? _G is actually deprecated (even tho the wiki doesn't show it), and things like NumberValues work well but sometimes they don't. Thundermaker300 554 — 7y

^Wrong. _G is NOT deprecated and it is on the wiki. http://wiki.roblox.com/index.php?title=Global_namespace/Basic_functions#G PyccknnXakep 1225 — 7y

Or, use modulescripts! Stop excluding dem, stop being mean D: hiimgoodpack 2009 — 7y

View all comments (2 more)

Yes, you can use module scripts too, they just seemed not very applicable to this situation. Troidit 253 — 7y

Oh lordy my question has strung up and argument... GottaHaveAFunTime 218 — 7y

How can a script access a variable thats in another script?

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