Tweens are smoother considerably than incrementing values in for loops, everybody knows that. I have been replacing lot's of incrementing values with for loops with tweens. However, the size of the blast is sin() dependant, so how would I translate the below loop in the below function, for example, into a tween?

function MakeBlast(Position, Color)
	local Blast = Instance.new("Part", SpellsFolder)
	Blast.Anchored = true
	Blast.Shape = Enum.PartType.Ball
	Blast.CanCollide = false
	Blast.CastShadow = false
	Blast.Material = Enum.Material.Neon
	Blast.Color = Color
	Blast.Position = Position
	local Blast2 = Blast:Clone()
	Blast.Transparency = 0.2
	Blast2.Transparency = 0.4
	Blast2.Parent = Blast
	spawn(function()
		for i = 0, 40, 1 do
			Blast.Transparency = Blast.Transparency + 0.02
			Blast2.Transparency = Blast2.Transparency + 0.015
			local BSize = math.sin((math.pi/80)*i)*80/2.5
			Blast.Size = Vector3.new(BSize, BSize, BSize)
			Blast2.Size = Vector3.new(BSize+8, BSize+8, BSize+8)
			wait() 
		end
		Blast:Destroy()
	end)
end
Anonymous