Issue with pointing arm towards mouse

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#1

My arm points towards my cursor just fine, until I rotate my character and this happens:

#2

This is probably happening because the arm is relative to the camera and not the torso.

#3

You should transform motor6D of the arm:

motor.Transform = CF...

Edit: You might’ve already done that cant tell lol.
You could just set rotations without positioning the arm

#4 
local Game = game
local RunService = Game:GetService("RunService")
local Players = Game:GetService("Players")
local Player = Players.LocalPlayer
local Mouse = Player:GetMouse()
local Character = Player.Character or Player.CharacterAdded:Wait()
local Torso = Character:FindFirstChild("Torso") or Character:WaitForChild("Torso")
local LeftShoulder = Torso:FindFirstChild("Left Shoulder") or Torso:WaitForChild("Left Shoulder")
local RightShoulder = Torso:FindFirstChild("Right Shoulder") or Torso:WaitForChild("Right Shoulder")

local function OnRenderStep()
	LeftShoulder.C0 = CFrame.lookAt(LeftShoulder.C0.Position, Mouse.Hit.Position) * CFrame.Angles(math.pi / 2, 0, 0)
	RightShoulder.C0 = CFrame.lookAt(RightShoulder.C0.Position, Mouse.Hit.Position) * CFrame.Angles(math.pi / 2, 0, 0)
end

RunService.RenderStepped:Connect(OnRenderStep)
1 Like
#5

Didn’t work, arm was clipped inside character.

#6

Was meaning to comment that a clamp would be required to prevent the arms from folding in on themselves.

1 Like
#7

Tried to get clamp working with the orientation values of the arm relative to the hrp and it didn’t work. Here’s my function, if it helps:

local function updateArmPosition()
	local point = mouse.Hit.Position
	local char = game.Players.LocalPlayer.Character
	local hrp = char:WaitForChild("HumanoidRootPart")
	
	local newCFrame = CFrame.new(hrp.Position, point) * CFrame.Angles(math.pi/2, 0, 0)
	main = hrp.CFrame:ToObjectSpace(newCFrame) * CFrame.new(1.5, -.5, -.5) --offsets arm from middle of plr
	
	weld.C0 = main
end
#8

I recommend using CFrame.lookAt as it has a 3rd argument that lets you specify the UpVector.