How do i make Curve Tweening

[bletDemonJH (Blet)]

Hello, i am looking for a method that will allow me to curve while Tweening Objects

For Example, I want to move Object A to B using TweenService, but if i do that, it will be pretty straight foward, while i want it like move i little bit to the right and something like that.

[FP_Nation]

Bezier curves will give you the desired effect.

That would require you to make your own custom function, that creates interpolation between cframes. At the same time it would use a mathematical formula for a bezier curve.

I believe this person has made a very good explanation of how that works, by recreating a blade ball’s ball system.

Blade Ball Ball Physics

The dev probably meant that they don’t use TweenService, not that they don’t use interpolation at all. They could still calculate a point on a curve every frame and set the CFrame of the ball based on that. In the video posted by @fasmandom , TweenService:GetValue() was used for calculating a time number for calculating the point on the curve. TweenService is not needed for that, and it’s probably useless if the developers want to have precise control of the speed of the ball over time. I don’t…

[EmilyBendsSpace]

@bletDemonJH

while i want it like move i little bit to the right and something like that

There are lots of different possible curves you could use, the simplest being a circular arc, since you would have an easy way to control how far it gets from the straight-line path, just by picking the radius of the circle. And the motion would be constant velocity by tweening the rotation angle linearly. If you need the lateral deflection to be more than half the distance between A and B, you could just stretch the circle into a ellipse.

But there are lots of other curves you too, the choice depends a lot on how you want it to look.

[1AkaNub (AkaNub)]

I’ll give a simple example of how you can make a bezier that takes a random point in the middle of the trajectory and tilts it a little to the side

local PointA = Vector3.new()
local PointB = Vector3.new(0, 0, 10)
local Part = workspace.Part

local Magnitude = (PointA - PointB).Magnitude

local MidPosition = CFrame.new(PointA, PointB) * CFrame.new(0, 0, -Magnitude) * CFrame.new(-math.random(Magnitude / 2), math.random(Magnitude / 2)).Position

local function Lerp(a, b, c)
      return a + (b - a) * c
end

local function QuadBezier (StartPosition, MidPosition, EndPosition, Offset)
       local L1 = Lerp(StartPosition, MidPosition, Offset)
       local L2 = Lerp(MidPosition, EndPosition, Offset)
       local QuadBezier = Lerp(L1, L2, Offset)

       return QuadBezier
end

for Index = 1, 10 do
     local CurrentPosition = QuadBezier(PointA, MidPosition, PointB, Index / 10)

     local PositionTween = game.TweenService:Create(Part, TweenInfo.new(.1), {Position = 
     CurrentPosition})

     PositionTween:Play()
     PositionTween.Completed:Wait()
end

There may be some errors because I did it without using a code editor and I’m sleepy