How I can call functions with varying amount of properties?

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#1

Hello guys. I want to make Tweening function. For it, I did such thing:

local TweenParams = {
["Size"] = UDim2.fromScale,
["Position"] = UDim2.fromScale,
["Transparency"] = function(x) return x end,
}

And, as you see here, there’s 2 types of functions: with 1 and 2 variables.
Also, I have another table, which contains data, like this:

local TweenCur = {"Position", 1, 0.5}
local TweenCur = {"Size", 0.25, 1}
local TweenCur = {"Transparency", 1}

And, I have 2 questions: what’s the best way to make this function calls, and, how I can get amount of arguments required for function to operate?

#3

Maybe you want something like this?

local TweenService = game:GetService("TweenService")

local TweenParams = {
	["Size"] = {
		Property = "Size",
		EasingStyle = Enum.EasingStyle.Linear,
		EasingDirection = Enum.EasingDirection.InOut,
		Time = 1,
	},
	["Position"] = {
		Property = "Position",
		EasingStyle = Enum.EasingStyle.Linear,
		EasingDirection = Enum.EasingDirection.InOut,
		Time = 1,
	},
	["Transparency"] = {
		Property = "Transparency",
		EasingStyle = Enum.EasingStyle.Linear,
		EasingDirection = Enum.EasingDirection.InOut,
		Time = 1,
	},
}

local TweenCur1 = {"Position", UDim2.new(1, 0, 0.5, 0)}
local TweenCur2 = {"Size", UDim2.new(0.25, 0, 1, 0)}
local TweenCur3 = {"Transparency", 0.5}

local function createTween(object, tweenData)
	local property = tweenData[1]
	local targetValue = tweenData[2]

	local tweenInfo = TweenParams[property]
	if not tweenInfo then
		return
	end

	local tweenGoal = {}
	tweenGoal[property] = targetValue

	local tween = TweenService:Create(object, TweenInfo.new(tweenInfo.Time, tweenInfo.EasingStyle, tweenInfo.EasingDirection), tweenGoal)
	return tween
end

local Frame = script.Parent:WaitForChild("ScreenGui").Frame 

local tween1 = createTween(Frame, TweenCur1)
local tween2 = createTween(Frame, TweenCur2)
local tween3 = createTween(Frame, TweenCur3)

tween1:Play()
tween2:Play()
tween3:Play()
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