Creating a Spinning Wheel

Help and Feedback Scripting Support
#1

Hey everyone!

If you’ve never watched Wheel of Fortune or some other game with a massive wheel, the
point of the wheel is it to spin and land on a random tile.

I’m not looking for a script to make the wheel (I already have a decal for that): I’m looking for a script that would spin the wheel on click.

My only issue is going about randomly generating how long the wheel will spin: my guess is that the wheel would randomly generate a random number in CFrame and then rotate that many times. How would I go about doing so?

EDIT: Another problem: would it be possible to weld a wheel to spin as well using a welding script? If I wanted to add those little pegs on the sides that the pointer would fall on, would it be possible to weld the wheel to these pegs?

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#2

For your first question about making a randomly spinning wheel. You can use mouse.Target to get what your mouse is clicking on or you could use a clickDetector. You can use math. random(1, someNumber) to get how long you want it to spin for. Then you could CFrame the wheel a little bit at time until your random number is reached.

#3

I already know how to click the wheel and make it activate: I just don’t know how to make it spin. Do I randomly generate how long it spins, or the distance it spins?

#4

You can use CFrame.Angles on the axis you want it to spin by a random starting speed, then you will decrease the angular speed over time at a rate you specify (deceleration):

Here’s some pseudo-code:

local r = 2
local v = math.random(20, 50)
local con

con = game:GetService("RunService").RenderStepped:Connect(function(dt)
    wheel:SetPrimaryPartCFrame(wheel:GetPrimaryPartCFrame() * CFrame.Angles(0, dt * v, 0)) -- if your wheel is a model
    v = math.max(v - (dt * r), 0)

    if v == 0 then
        con:Disconnect()
    end
end)

This is if you’re running it in a local script

EDIT: I clamped the angular speed at a minimum of 0 and disconnected the event when it reaches 0

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#5

1). I would try the method that @Raretendoblox shared, render stepped event and some minor CFrame math on the client is a good way to go.

2). you wouldn’t have to weld the wheel to anything, you can just anchor it. (anchoring it wont stop the CFrame from rotating)

3). [Optional] factors for spinning the wheel should probably be sent from the server, (like the random starting speed and the amount of decrease for the angular speed).

#6

Thanks! This is incredibly useful, but I know from prior knowledge that RenderStepped can only be used in Local Scripts. Is it possible to translate it into a normal script so everyone in the server can see?

#7

Stepped is an alternative, which fires before every physics update, but using RenderStepped on the client should be a little smoother. You can notify all clients when you click the wheel and spin on their clients to make it a little smoother.

If you don’t want to do all of that, you can just use Stepped on the server

#8

Thanks so much! Can’t wait to implement this.

#9

Sorry to be of nuisance, but the part spins very very fast. I’ve tried adjusting both the r and v values but to no avail. Any way to slow it down a bit?

#10

I think you’d need to try smaller values for v:

local v = math.random() + 1

The above generates a random number (not an integer) in the range of 1 - 2. You can try messing around with this to get a desired speed range

#11

Don’t use RenderStepped here. You aren’t updating something that needs to be changed before a frame renders. Furthermore, the way you’re using it can delay frame execution.

This item is also not physics-reliant and needing to update it before physics are simulated is not necessary. If you needed it updated before physics were applied, that would be a different story.

Use Heartbeat.

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