Help With CFrame

Help and Feedback Scripting Support
#1

Hello developers!

I’ve personally never used CFrame, and plan on learning after this, but I need to do something, and I don’t know how. I need to make a block move up for 3 seconds, and then down for 3 seconds, and repeat.

Thanks,
Ben

1 Like
#2

Hello!

You can move a instance by taking its current CFrame and moving it by 3 studs on the Y axis like so:

Part.CFrame = Part.CFrame * CFrame.new(0, 3, 0)
--Pretty sure this works as well, correct me if I am wrong.
Part.CFrame *= CFrame.new(0, 3, 0)
--This also applies to moving it down ways by using a negative value instead.

--Position works as well
Part.Position += Vector3.new(0, 3, 0)

--Sorry didn't read the entire question correctly, here is how you would tween the parts position:
local TweenService = game:GetService("TweenService")
while true do
	TweenService:Create(Part, TweenInfo.new(3), {Position = Vector3.new(0, 3, 0)}):Play()
	wait(3)
	TweenService:Create(Part, TweenInfo.new(3), {Position = Vector3.new(0, 0, 0)}):Play()
	wait(3)
end
3 Likes
#3

He said 3 seconds, not studs

There are lots of ways to do this but the easiest is to probably just use TweenService to tween the CFrame

#4

It’s working well, except it moves the part.

#5

You said within your question your trying to move a part? Is there something else too?

#6

I’m trying to move it up and down, yet it goes to the right.

#7

The code I provided moves the part on the Y axis as show here: Vector3.new(0, 3, 0)
Make sure to check your values.

#8

CFrame is essentially just a more useful and powerful version of “Position” with some extra benefits. The basic CFrame constructor “CFrame.new(vector3pos , vector3lookAt)” is a very useful way of moving things and setting the rotation of them. A very good tutorial I recommend is @Alvin_Blox’s “What Is CFrame?” (What Is CFrame? | Roblox CFrame Tutorial | LookVector, Angles & More! - YouTube). Regarding your question about part movement, try this:

local TweenService = game:GetService("TweenService") --Get the Tween Service (basically a part animator)

local part = script.Parent

local tweenInfo = TweenInfo.new(
	
	3, --the duration of the tween in seconds
	Enum.EasingStyle.Quad, --the easing style of the tween (https://developer.roblox.com/en-us/api-reference/enum/EasingStyle)
	Enum.EasingDirection.Out, --the aeasing direction of the tween (https://developer.roblox.com/en-us/api-reference/enum/EasingDirection)
	-1, --the amount of times the tween will repeat (-1 is indefinite)
	true, --whether or not the tween will reverse
	.5 --delay between reverses
	
)

local partGoal = {
	CFrame = part.CFrame * CFrame.new(0,9,0) --This is making it so that the part moves 9 studs in the Y direction, relative to it's current CFrame
}

local partTween = TweenService:Create(part,tweenInfo,partGoal)
partTween:Play()