Function with different arguments

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#1

Hello, my name is Emi and I was wondering how I could do this?image image

As you can see CFrame is a function that several different inputs how can I replicate that in my code?

#2

You can use modules for this purpose.

Here is an example:

Create a new module in ServerScriptService,
inside it use this code:

local Object = {}

  function  Object.New(item, parent)
        local instance = Instance.new(item) 
        instance.Parent = parent
        return instance
  end

  function Object.Destroy(item)
           item:Destroy()
  end

return Object

Then from another script, requiring the module

  local Object = require(path.to.module) -- the variable's name can be anything
 
  Object.New("Part", workspace)
  Object.Destroy(workspace.Part)
#3

Sadly thats not what I am asking. The thing I am trying to achive is to have the same variable but with different variables going into to it like CFrame.New() that can have 6 different inputs.

#4

Agree if he uses modules but he is using CFrame functions instead

#5

oh, sorry

you can make functions with a variable number of arguments like this:

pass a parameter as … (three dots, no less)


  function Print(...) -- you can event pass a parameter before ..., but not after it
           for _, arg in ipairs({...}) do 
              print(arg)
           end
  end

 Print(1,3,4,"abc") --> prints all of them

Go here: Programming in Lua : 5.2

#6

What do you mean by that

Same variables is not good practice as it can override things

#7

image

Like CFrame.new() I am trying to make a constructor. As seen in the image above it takes in different arguments and does different stuff based on the arguments.

#8

You have to make it so that it checks if there’s an argument passed
Example:

function CFrame.new(x)
  local Vector3
  if x then
    Vector3 = x
  else
    Vector3 = (0, 0, 0)
  end
  return Vector3
end```
#9

image
I am trying to achieve something like this in Lua. (This code is C#)

#10

What you’re talking about is known as function overloading. It is where a single function can do different things based on its arguments. CFrame.new is implemented in C++ which supports function overloading, however Lua does not. You’ll need to manually write each case out in your function.