BodyVelocity cannot be assigned to (BLANK), help?

Help and Feedback Scripting Support
#1

Hello everyone!

I’ve come across this one issue where it’s very confusing and odd, and may in fact be a ROBLOX bug…

I was coding in some custom vehicle movement system, and I was using BodyVelocity as the throttle. However, upon setting its Velocity to body.CFrame.LookVector * speed, it just gives me this error:
Velocity cannot be assigned to

Yes, you saw it right. It doesn’t even give me what it can’t be assigned to, which makes this issue nearly 15x harder to figure out.

FYI: I’m using a server script.

Here’s my code:

if forward and not backward then
	bodyVelocity.Velocity = body.CFrame.LookVector * speed
elseif backward and not forward then
	bodyVelocity.Velocity = body.CFrame.LookVector * -(speed/2)
elseif (forward and backward) or (not forward and not backward) then
	bodyVelocity.Velocity = body.CFrame.LookVector * 0
end

That’s why I confronted you guys, so any help is appreciated :)))

#2

Try

Vector3.new(body.CFrame.LookVector * speed)
#3

Nope, still gives the same error… :frowning:

#4

Is that all of the script?

–X

#5

No, it’s just the portion where the error is coming from.

#6

Can I see the whole script?

–X

#7

Sure thing:

local seat = script.Parent
local occupiedPlayer = nil
local directionRemote = seat.SendDirections
local body = seat.Parent.Mass
local car = seat.Parent

local FLattachment = body.AttachmentFL
local FRattachment = body.AttachmentFR

local bodyVelocity = body.Velocity

local speed = 30

local function onDirectionsEvent(player, packet)
	local forward = packet["Forward"]
	local backward = packet["Backward"]
	local left = packet["Left"]
	local right = packet["Right"]
	if player then
		-- Turning stuff
		if left and not right then
			FLattachment.Orientation = Vector3.new(0,30,-90)
			FRattachment.Orientation = Vector3.new(0,30,-90)
		elseif right and not left then
			FLattachment.Orientation = Vector3.new(0,-30,-90)
			FRattachment.Orientation = Vector3.new(0,-30,-90)
		elseif (right and left) or (not right and not left) then
			FLattachment.Orientation = Vector3.new(0,0,-90)
			FRattachment.Orientation = Vector3.new(0,0,-90)
		end
		-- Movement stuff
		if forward and not backward then
			bodyVelocity.Velocity = body.CFrame.LookVector * speed
		elseif backward and not forward then
			bodyVelocity.Velocity = body.CFrame.LookVector * -(speed/2)
		elseif (forward and backward) or (not forward and not backward) then
			bodyVelocity.Velocity = body.CFrame.LookVector * 0
		end
	end
end

directionRemote.OnServerEvent:Connect(onDirectionsEvent)

Excuse my weird way of sending directions through remote events.

#8

body.Velocity is a BodyVelocity instance right?

#9

Yes, bodyVelocity.Velocity is the thing that handles the moving.

#10

You need to say body.Velocity not bodyVelocity.Velocity the bodyVelocity variable is the velocity value of the body velocity.

2 Likes
#11

OHHHHHHHHHHHH MY GOD!!

I never realized that!

Thank you so much my man!!!

1 Like
#12

No problem. It is very, very easy to start thinking on a bigger scale about weird errors when the whole time is was something so simple. I am glad I could help! :smiley:

1 Like