Mouse rotation stuck

Help and Feedback Scripting Support
,
#1

Hello! so I was trying to make a rotatable part that you can spin Left or Right with your mouse. I am having trouble getting the part to spin full 360 and it keeps glitching and wanting to point towards the ground if anyone could possibly help me I would appreciate it!

Problem that occurs
https://gyazo.com/ae1cf86c9e2aaad462aebb6e56c3a998

Code I have now

local mouse = game.Players.LocalPlayer:GetMouse()
local part = workspace.TEST

local click = false

mouse.Button1Up:Connect(function()
	click = false
end)

mouse.Button1Down:Connect(function()
	click = true
end)

mouse.Move:Connect(function()
	if click == true then
		part.CFrame = CFrame.new(part.Position, Vector3.new(mouse.Hit.X, 0,0,0)) else
		if click == false then
			return click
		end
	end
end)
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#2 
local mouse = game.Players.LocalPlayer:GetMouse()
local part = workspace.TEST

local click = false

mouse.Button1Up:Connect(function()
	click = false
end)

mouse.Button1Down:Connect(function()
	click = true
end)

mouse.Move:Connect(function()
    if click then
        part.CFrame = CFrame.lookAt(
            part.Position,
            Vector3.new(
                mouse.Hit.Position.X,
                0,
                mouse.Hit.Position.Z
            )
        )
    end
end)

you could try this out

#3

I have tried something like this, it does in fact fully rotate but when you move the mouse in a circle sometimes it snaps back and fourth and doesn’t really rotate in a perfect circle if that makes sense?
I need it like this https://gyazo.com/4649ee7cf3384c8f93012bd12c544ffa

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#4

If your trying to achieve that rotation effect your going to need an entire different approach as currently your following the mouse not using it to rotate.

#5

Could you maybe point me in the right direction to go on about this?

#6

Perhaps you should try projecting your part’s position to a world point on screen, and subtracting the distance between the initial world point (from top left corner of screen), and your mouse vector coordinates X and Y. This will return an offset between the world point coordinates and mouse coordinates. Using atan2, you can convert this offset directly to a radian which can be used to rotate the part on an axis. Hope this helps :slight_smile:

local vector, onScreen = camera:WorldToScreenPoint(part.Position)
local screenPoint = Vector2.new(vector.X, vector.Y) - Vector2.new(mouse.X, mouse.Y)
part.CFrame = CFrame.new(part.CFrame.Position) * CFrame.Angles(0, math.atan2(screenPoint.X, screenPoint.Y), 0)
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#7

Yes! thank you it works this is what I was looking for I never knew you had to use WorldToScreen because I had already tried CFrame angles but it didn’t work.

1 Like