Bending Torso in the direction of the Mouse

[Edryi007]

Hello there, Developers. I am currently making one of my first R15 OTS Weapon Systems, and I have came across a problem.

When aiming down or up, the Character does not move, obviously. This is an unrealistic effect and I would like the UpperTorso and above parts of the body to bend to the direction of the mouse, if you know what I mean. It seems like I can’t find any other articles speaking about this, or I just failed in searching.

Thanks for help in advance.
-Edryi007

[krzys2015 (Christ)]

I know how to do this but only for R6.

[Edryi007]

I could try to convert this into R15, could you please share?

[krzys2015 (Christ)]

-- local RunService = game:GetService("RunService")

local Player = game.Players.LocalPlayer
local PlayerMouse = Player:GetMouse()

local Camera = workspace.CurrentCamera

local Character = Player.Character or Player.CharacterAdded:Wait()
--Old R15 code
local Head = Character:WaitForChild("Head")
--local Neck = Head:WaitForChild("Neck")

--local Torso = Character:WaitForChild("UpperTorso")
--local Waist = Torso:WaitForChild("Waist")

--New R6 stuff
local Humanoid = Character:WaitForChild("Humanoid")
local HumanoidRootPart = Character:WaitForChild("HumanoidRootPart")

local Torso = Character:WaitForChild("Torso")
local Neck = Torso:WaitForChild("Neck")

local Waist = HumanoidRootPart:WaitForChild("RootJoint")

local RHip = Torso:WaitForChild("Right Hip")
local LHip = Torso:WaitForChild("Left Hip")

local LHipOriginC0 = LHip.C0
local RHipOriginC0 = RHip.C0

local NeckOriginC0 = Neck.C0
local WaistOriginC0 = Waist.C0

Neck.MaxVelocity = 1/3

RunService.RenderStepped:Connect(function() 
	local CameraCFrame = Camera.CoordinateFrame

	if Character:FindFirstChild("Torso") and Character:FindFirstChild("Head") then
		local TorsoLookVector = Torso.CFrame.lookVector
		local HeadPosition = Head.CFrame.p

		if Neck and Waist then
			if Camera.CameraSubject:IsDescendantOf(Character) or Camera.CameraSubject:IsDescendantOf(Player) then
				local Point = PlayerMouse.Hit.p

				local Distance = (Head.CFrame.p - Point).magnitude
				local Difference = Head.CFrame.Y - Point.Y
				
				
				local goalNeckCFrame = CFrame.Angles(-(math.atan(Difference / Distance) * 0.5), (((HeadPosition - Point).Unit):Cross(TorsoLookVector)).Y * 1, 0)
				Neck.C0 = Neck.C0:lerp(goalNeckCFrame*NeckOriginC0, 0.5 / 2).Rotation + NeckOriginC0.Position
				
				local xAxisWaistRotation = -(math.atan(Difference / Distance) * 0.5)
				local yAxisWaistRotation = (((HeadPosition - Point).Unit):Cross(TorsoLookVector)).Y * 0.5
				local rotationWaistCFrame = CFrame.Angles(xAxisWaistRotation, yAxisWaistRotation, 0)
				local goalWaistCFrame = rotationWaistCFrame*WaistOriginC0
				Waist.C0 = Waist.C0:lerp(goalWaistCFrame, 0.5 / 2).Rotation + WaistOriginC0.Position
				
				
				local currentLegCounterCFrame = Waist.C0*WaistOriginC0:Inverse()

				local legsCounterCFrame = currentLegCounterCFrame:Inverse()
				
				RHip.C0 =  legsCounterCFrame*RHipOriginC0
				LHip.C0 = legsCounterCFrame*LHipOriginC0
			end
		end
	end	
end)

its by dthecoolest