How to Get All Children and Change Them?
Okay, So I made a script that when one block is hit by a part called 'Rocket' it changes the child (removes it or changes material)
It works with one or two chains (children) but when I have many of them it's hard to list them out in a script and it gets complicated.
How can I make it so it gets the children and then changes them as a whole?
:GetChildren() only gives a read-only output, so how can I accomplish this?
Script that works with two chains:
local buttonPressed = false
Hits = script.Parent.Hits
Chain1 = script.Parent.Parent.Chain1
Chain2 = script.Parent.Parent.Chain2
function checkhits()
Hits = Hits
end
script.Parent.Touched:connect(function(bang)
if not buttonPressed then
buttonPressed = true
if bang.Name == "Rocket" then
Hits.Value = Hits.Value + 1
wait(1)
buttonPressed = false
end
end
end)
while true do
wait(0.1)
checkhits()
if Hits.Value == 1 then
Chain1.Material = "Marble"
Chain2.Material = "Marble"
elseif Hits.Value == 2 then
script.Parent:Destroy()
Chain1.Material = "CorrodedMetal"
Chain2.Material = "CorrodedMetal"
Chain1.Anchored = false
Chain2.Anchored = false
end
end
2 answers
If you want to get all children, you would use the GetChildren method like you said.
GetChildren is a method that returns a table containing all of the children of the object it is used on. For example, workspace:GetChildren() would return a table full of all of the children of workspace.
We can use this to our advantage if we want to do something to all of the children of an object by iterating through the table. Since the table is in list form, that means that all indices are numerical, and that allows us to use a simple for loop with an increment variable or we can use a key-value pair iterator function like pairs or next.
Now, we can get a reference to each child of the table and do something to it.
For loop with increment variable
local children = workspace:GetChildren()
for index = 1, #children do
local child = children[index]
-- do whatever you want to this child
end
For loop with iterator function next
for _, child in next, workspace:GetChildren() do
-- do whatever you want to this child
end
For loop with iterator function pairs
for _, child in pairs(workspace:GetChildren()) do
-- do whatever you want to this child
end
If I wanted to print all of the children of workspace with next, I would write the following
for _, child in next, workspace:GetChildren() do
print(child)
end
Building off of Sukinahito's answer, you might want to build a function to apply the property to all children automatically:
function ApplyProperty(property, value)
local ch = script.Parent:GetChildren()
for i = 1, #ch do
pcall(function() ch[i][property] = value end)
end
end
--Usage:
ApplyProperty("Anchored", true)
I use pcall incase the child doesn't have the property. Without pcall, you could get an error when you try to run it if one of the children doesn't have the property.