Change property of all children at once?

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#1

Hi all,

I was wondering; How does GetChildren() work? Say I have a model with 5 children, and I want to change the transparency of all children to 1, how would I do this?

Thanks for reading!

7 Likes
#2

You will want to iterate over the table returned.

for _, child in ipairs(model:GetChildren()) do

end

Now I will assume not everything in there is a base part so I would check to make sure there is.

if child:IsA("BasePart") then

end

So great. We can guarantee the child is a base part, now set their transparency to 1.

child.Transparency = 1

Now you will have to put the code together.

5 Likes
#3

Would this work then?

while true do
	for _, child in ipairs(workspace.Model:GetChildren()) do
		if child:IsA("Part")then
			child.Transparency = 1
		else
			child.Color = Color3.new(255,0,0)
		end
		wait(5)
		if child:IsA("Part")then
			child.Transparency = 0
		else
			child.Color = Color3.new(0,255,0)
		end
		
	end
	
	
	wait()
end

(incase i want to change transparency of the ā€œPartā€'s and i want to change the color of others)

#4

With the code I showed above, it always just does one, how would I make sure it does for all of the children?

#5

having a wait in a for do loop will make it wait 5 seconds before running the next child through the loop, removing the wait 5 should have it work properly

#6

If you mean every single child of that model, Use :GetDescendants() instead.

#7

When I tried doing GetDescendants() it just did 1 brick, and didnā€™t even repeat the process like before

#8

Are you sure you did

 ModelName:GetDescendants()

?
It works 100% of the time.

#9

I have this in workspace: image
and this is my code:

while true do
	for _, child in ipairs(workspace.Model:GetDescendants()) do
		if child:IsA("Part")then
			child.Transparency = 1
		elseif 
			child.BrickColor = "Lime green"
		end
		wait(1)
		if child:IsA("Part")then
			child.Transparency = 0
		elseif 
			child.BrickColor = "Really red"
		end
		
	end
	
	
	wait()
end

(Dont mind the color, I tried with both RGB value and name)

1 Like
#10

Try this;

while true do
	for _, child in ipairs(workspace.Model:GetDescendants()) do
		if child:IsA("BasePart")then
			child.Transparency = 1
		else
			child.Color = Color3.new(255,0,0)
		end
		wait(5)
		if child:IsA("BasePart")then
			child.Transparency = 0
		else
			child.Color = Color3.new(0,255,0)
		end
		
	end
	
	wait()
end

You have to do :IsA(ā€œBasePartā€) not part. Part checks if it has the classname part. Meshes have the clash name MeshPart.

1 Like
#11

It still does the same, except the meshparts also turn invisible instead of getting colored

#12

Then do two separate checks,

if object:IsA("MeshPart") then
-- Do whatever
end

if object:IsA("Part") then
-- Do whatever
end

You can also change it back to children.

#14

I saw a friend using coroutine in unity, if i got it correctly, when i use coroutine i just place the same code inside the coroutine except the while true do?

#15 
	for _, child in ipairs(workspace.Model:GetChildren()) do
		spawn function()
			if child:IsA("Part")then
				child.Transparency = 1
			else
				child.BrickColor = "Lime green"
			end
			wait(1)
			if child:IsA("Part")then
				child.Transparency = 0
			else
				child.BrickColor = "Really red"
			end
			
		end
		
		wait()
	end
1 Like
#16

if im not mistaken you cant do elseif without an argument?

#17

Elseif without an argument is else

I edited the code

#19

EDIT: My bad for overcomplicating the solution, see Lightlimnā€™s response below

2 Likes
#20

Iā€™m not sure what, but something went wrong here, it kind of randomly changes the transparency of some of the parts in my model, any idea why this happens?

#21

Iā€™m sorry but these replies are really not very helpful and are way overcomplicating a simple task.

Your original function was almost right. Hereā€™s a slightly edited version, using 2 for loops instead of one.

while true do
	for _, child in ipairs(workspace.Model:GetChildren()) do
		if child:IsA("Part")then
			child.Transparency = 1
		else
			child.Color = Color3.fromRGB(255,0,0)
		end
	end
	wait(5)
	for _, child in ipairs(workspace.Model:GetChildren()) do
		if child:IsA("Part")then
			child.Transparency = 0
		else
			child.Color = Color3.fromRGB(0,255,0)
		end
	end
	wait(5)
end

Thatā€™s all it should take. You donā€™t need coroutines or spawn functions yet - thatā€™s completely unnecessary for this.

I also changed Color3.new to Color3.fromRGB, because that way putting 255 as one of the values makes more sense. using .new takes values from 0 - 1.
However, Iā€™m not sure what ā€˜childā€™ could be if itā€™s not a part and has a colour that needs changing. That could error if it comes across something like a script. Let me know how this works

14 Likes
#22

Thanks a lot! It worked precisely as I needed it :slight_smile:
The other part would be a meshpart, I was just testing with more different sorts at once, nothing to worry about

1 Like