Rotate arm with rotated torso

Help and Feedback Scripting Support
#1

before we begin, i’m not good at english, sorry.
i want to make character’s arm follow mouse on y-axis, so i tried code from a youtube tutorial.
but it didn’t work. i guess it’s because character’s torso is rotated. however i don’t know what to do.

i have read a lot of topics about it… but i couldn’t find answer.
video:

my code:

local RunService = game:GetService("RunService")
local PlayerService = game:GetService("Players")
local plr = PlayerService.LocalPlayer
local cam = workspace.CurrentCamera
local chr = plr.Character
local torso:BasePart = chr["Torso"]
local right_shoulder:Motor6D = torso["Right Shoulder"]
local right_shoulder_origin = right_shoulder.C0
local left_shoulder:Motor6D = torso["Left Shoulder"]
local left_shoulder_origin = left_shoulder.C0

RunService.Stepped:Connect(function()
	local camDir = torso.CFrame:ToObjectSpace(cam.CFrame).LookVector
	right_shoulder.C0 = right_shoulder_origin*CFrame.Angles(0,0,camDir.Y)
	left_shoulder.C0 = left_shoulder_origin*CFrame.Angles(0,0,-camDir.Y)
end)

thank you for reading.

1 Like
#2

Why not use the root part instead of the torso if rotation is the issue?

#3

um… i didn’t understand… how can i use root part for this? motor6d(right shoulder) is connecting torso and right arm. could you explain it in more detail? thanks for reply!

#4

You can use it for the angle measurement method, it is relative to torso object space which is the issue. Try replacing it with root part.

#5

still don’t work… camera angle detection is fine. the arms are rotating incorrectly.
my goal:
image
image
wrong way(now):
image