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Re: Number of children in part

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johnhugh is not online. johnhugh
Joined: 26 Mar 2009
Total Posts: 1971
07 Mar 2012 07:36 PM
What I need is a script that counts how many children are in a part. Say I have "part" and it has 3 scripts in it as children. I want a script that will say 3 because there are 3 children in the part, and if there were 4 children then I would want it to say 4.

- Just saying a function would be fine (if there is one).
- Otherwise, if you could give me a few lines of script, I'd be fine.
- Also, a link to the wiki would be good.

I'm a moderate Lua script writer, so I can handle the information I get!

If I didn't explain what I wanted well enough, please ask me to clarify.

*Thankyou!* :)
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KnightmareXD is not online. KnightmareXD
Joined: 14 Jul 2009
Total Posts: 11189
07 Mar 2012 07:52 PM
Ah, didn't know what to do, so had to experiment for awhile. x.x

But this is what I came up with:

for _, v in pairs(game.Workspace.Part:GetChildren()) do
if v:IsA("Script") then
print(#"v")
end
end

It will loop through "Part" a child of Workspace, and if they are a script, print the number of scripts. Edit as needed and tell me if it errors.


† KMXD †
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SDuke524 is not online. SDuke524
Joined: 29 Jul 2008
Total Posts: 6267
07 Mar 2012 07:54 PM
#part:GetChildren()
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xvgigakid is not online. xvgigakid
Joined: 22 Jun 2008
Total Posts: 4407
07 Mar 2012 07:55 PM
Or you could do this :/

blah = object:GetChildren()
NumberOfChildren = #blah
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KnightmareXD is not online. KnightmareXD
Joined: 14 Jul 2009
Total Posts: 11189
07 Mar 2012 07:55 PM
Oh crap. Just tested it with multiple scripts in it, and it prints "1", however many scripts there are... Let me experiment some more. . .

† KMXD †
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xvgigakid is not online. xvgigakid
Joined: 22 Jun 2008
Total Posts: 4407
07 Mar 2012 07:56 PM
late toasted yet again by SDuke >.<
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KnightmareXD is not online. KnightmareXD
Joined: 14 Jul 2009
Total Posts: 11189
07 Mar 2012 07:56 PM
Or let others help. D:

† KMXD †
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johnhugh is not online. johnhugh
Joined: 26 Mar 2009
Total Posts: 1971
07 Mar 2012 07:57 PM
Lol
So define # for me? Does it count amount of children found? what about in other cases?
Just trying to learn :3
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SDuke524 is not online. SDuke524
Joined: 29 Jul 2008
Total Posts: 6267
07 Mar 2012 07:58 PM
It gives the number of indexes in an array, or if used on a string is the same as `string.len()`.
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xvgigakid is not online. xvgigakid
Joined: 22 Jun 2008
Total Posts: 4407
07 Mar 2012 08:02 PM
@SDuke
`` <== Canadian French font. É Ctrl+Shift broski.
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johnhugh is not online. johnhugh
Joined: 26 Mar 2009
Total Posts: 1971
07 Mar 2012 08:06 PM
Thanks! Could you also give me a rundown on [i], i?
You guys are really helpful btw :)
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SDuke524 is not online. SDuke524
Joined: 29 Jul 2008
Total Posts: 6267
07 Mar 2012 08:08 PM
[] is used for defining an index in a table. i is a variable.

http://wiki.roblox.com/index.php/Tables
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johnhugh is not online. johnhugh
Joined: 26 Mar 2009
Total Posts: 1971
07 Mar 2012 08:12 PM
Well, I see i alot in brackets. What's i the default variable for?
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SDuke524 is not online. SDuke524
Joined: 29 Jul 2008
Total Posts: 6267
07 Mar 2012 08:14 PM
i is just a variable.
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xvgigakid is not online. xvgigakid
Joined: 22 Jun 2008
Total Posts: 4407
07 Mar 2012 08:15 PM
@SDuke

Well actually the default for any variable is nil :/
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johnhugh is not online. johnhugh
Joined: 26 Mar 2009
Total Posts: 1971
07 Mar 2012 08:16 PM
Hmm, well thanks guys! :) I appreciate the help! I learned what [, ], and # are used for! :)

*Thanks!*
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SDuke524 is not online. SDuke524
Joined: 29 Jul 2008
Total Posts: 6267
07 Mar 2012 08:19 PM
@xv

> i is just a variable.

where did I say it wasn't?
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xvgigakid is not online. xvgigakid
Joined: 22 Jun 2008
Total Posts: 4407
07 Mar 2012 08:23 PM
@John

Ok im gonna try and explain this as simply as possible.

First you have a table
Table = {"Hi", "Bob", "Noob"}

Now you print the variables in the Table like so.

print(Table[1])
>"Hi"

print(Table[2])
>"Bob"

print(Table[3])
>"Noob"

See a pattern?

Now when you use GetChildren()
It creates a table,
And it indexes a variable for each of those objects.

Ex.
x = Brick:GetChildren()
x = {Brick.Pie, Brick.Cake, Brick.Builderman}

Now for loops do the following,
You give them an ammount of times to run, for example,

for i = 1, 10 do
print(i)
end

Now on the first loop this loop will print 1
On the second loop it will print 2
On the third it prints 3
And so on.

When we do this with tables, it loops it from 1 to the number of variables in a table.

So when we do this,

Table = {"A", "B", "C"}
for i = 1, #Table do --It will loop 3 times due to their being only 3 values in the table.
print(Table[i]) --You probobly see the pattern by now.
end


And were done!
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xvgigakid is not online. xvgigakid
Joined: 22 Jun 2008
Total Posts: 4407
07 Mar 2012 08:24 PM
@SDuke

Im just pointing out the fact that the default is nil.
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