How to make a speedometer wheel

[Sindious]

Im not sure where to look for a tutorial on how to make a speedometer that just displays ur speed. all the youtube tutorials or models I’ve seen have a speedometer but it has revving aswell which i dont want i just want the speed.

[manounou0 (RoParkourBlox)]

you need to connect the value of the walk speed toa gui and it should be good if you dont know how ask me

[skyblox7862 (YourLocalNoob)]

you can use the rotation properties of the gui . but you still need to do a bit of math to get the position of the speedometer pointer

[Sindious]

The math is the bit im stuck on and how to align it with a speedometer gui? also how do u make speedometer guis

[skyblox7862 (YourLocalNoob)]

you can add ui corner to the gui and set the scale value to 1 which will make the ui a circle

[ExercitusMortem (Exercitus)]

The GUI should have a background circle, a foreground circle, and the foreground circle should have the arm of the speedometer. You then decide your min and max rotation (I suggest 45, 315). You then decide on a max speed. Then you’ll create a function which takes a speed argument, and calculates how many degrees that would be. You then rotate the foreground circle by that amount, plus your min angle as offset.

local maxSpeed = 150

local minAngle,maxAngle = 45,315

local totalDegrees = maxAngle-minAngle

local speedPerDegree = totalDegrees/150

local function calculateDegree(speed)
	return math.min(minAngle+speed*speedPerDegree,maxAngle)
end

-- Testing function
while wait(.01) do
	for i = 1, maxSpeed do
		local deg = calculateDegree(i)
		script.Parent.Frame.backgroundCircle.foregroundCircle.Rotation = deg
		script.Parent.Frame.backgroundCircle.TextLabel.Text = i
		wait(.01)
	end
end

[Sindious]

Okay that seems promising ill be sure to try it when i get time but how would I go about adding the numbers to the speedometer? It will be very difficult to draw so I assume it’s easier to script it.

[ExercitusMortem (Exercitus)]

I’d just get a texture from google

[Sindious]

What does the anchor point of the needle need to be and where should it start like where do i put it?? e.g 180 * or 90 *

[ExercitusMortem (Exercitus)]

The needle is ‘fake’. So there’s a frame, which is just centered on the center. The needle is a child of that frame. That frame is what rotates, the needle just rotates because it’s a child of the frame. So all you need to do, is to make sure that at 0 degrees, the needle is pointing wherever you want it to be pointing (I recommend at 7:30 looking at a clock)