Slope Tilt not working

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#1

I’m making a script that tilts the player in the direction of a slope, however it is not really working and gives some really funny results. Here’s a screenshot (i would send a video but the recorder is not working:)

image
image962×535 34.8 KB 

--Localscript, StarterCharacterScripts

local character = game.Players.LocalPlayer.Character
local rootPart = character:WaitForChild("HumanoidRootPart")
local rayParams = RaycastParams.new()
rayParams.FilterType = Enum.RaycastFilterType.Exclude

game:GetService("RunService").Heartbeat:Connect(function()
	local ray = workspace:Raycast(rootPart.Position, Vector3.new(0, 10, 0), rayParams)
	if ray then
		rootPart.CFrame = CFrame.new(rootPart.Position, ray.Normal)
	end
end)
#2

Thats because roblox’s movement system constantly puts the character upright.
You’d have to modify the PlayerModule in order to be able to achieve that

I believe there are some resources on the forum regarding this

#3

You can do this

#4

Does this solution work for R6?

#5

Requires some adjustment but will work, same concept and math formulas. However added an extra C1 inverse because R6 has some weird rotation to it’s C1 creating an offset.

I think the R15 one is the wrong actually this formula should work for both R15 and R6 (c1 offset not included)
image

local motor : Motor6D = script.Parent.HumanoidRootPart.RootJoint -- Assume this is a Motor6D
local part0 = motor.Part0 -- Parent part
local part1 = motor.Part1 -- Child part (e.g., head, torso)

local randomAxis = Vector3.new(0,0,1)

local function getRotationBetween(u, v, axis)
	local dot, uxv = u:Dot(v), u:Cross(v)
	if (dot < -0.99999) then return CFrame.fromAxisAngle(axis, math.pi) end
	return CFrame.new(0, 0, 0, uxv.x, uxv.y, uxv.z, 1 + dot)
end


local originalC0 = motor.C0
local originalC1 = motor.C1

local function worldCFrameRotationToC0ObjectSpace(motor6DJoint, worldCFrame)
	local part0 = motor6DJoint.Part0
	local c1Store = motor6DJoint.C1
	local goalC0CFrame = part0.CFrame:Inverse() * worldCFrame * c1Store
	return goalC0CFrame
end
-- your previous code...

-- Create debug part for target rotation
local debugPart = Instance.new("Part")
debugPart.TopSurface = Enum.SurfaceType.Motor

debugPart.FrontSurface = Enum.SurfaceType.Motor
debugPart.Size = Vector3.new(3, 3, 0.5)
debugPart.Color = Color3.new(1, 0, 0) -- Red
debugPart.Material = Enum.Material.Neon
debugPart.Anchored = true
debugPart.CanCollide = false
debugPart.CanTouch = false
debugPart.CanQuery = false
debugPart.Name = "DebugTarget"
debugPart.Parent = workspace

-- Create another part for the floor normal gizmo
local floorNormalGizmo = Instance.new("Part")
floorNormalGizmo.Size = Vector3.new(0.2, 0.2, 5) -- Thin arrow
floorNormalGizmo.Color = Color3.new(0, 1, 0) -- Green
floorNormalGizmo.Material = Enum.Material.Neon
floorNormalGizmo.Anchored = true
floorNormalGizmo.CanCollide = false
floorNormalGizmo.CanTouch = false
floorNormalGizmo.CanQuery = false
floorNormalGizmo.Name = "FloorNormalGizmo"
floorNormalGizmo.Parent = workspace

--part0.Transparency = 0 -- make sure part0 is visible

--game["Run Service"].PreSimulation:Connect(function(dt)
--	motor.Transform = CFrame.new()
--end)

local params = RaycastParams.new()
params.FilterDescendantsInstances = {script.Parent, floorNormalGizmo, debugPart}

while true do
	local rayResult = workspace:Raycast(part0.Position, -1000 * part0.CFrame.UpVector, params)

	if rayResult then
		local floorNormal = rayResult.Normal
		local hitPosition = rayResult.Position
		
		local angle = part1.CFrame.UpVector:Dot(floorNormal)
		--print(math.deg(math.acos(angle))) IDK
		--if math.deg(math.acos(angle)) < 0.1 then
		--	task.wait()
		--	continue
		--end
		-- Rotate the part1 to align with floor normal
		local x,y,z = part1.CFrame:ToOrientation()
		local part1NewCF = CFrame.fromOrientation(x,y,0)
		local rotateToFloorCFrame = getRotationBetween(part0.CFrame.UpVector, floorNormal, randomAxis)

		-- Target worldspace CFrame
		local targetWorldCFrame = rotateToFloorCFrame * part0.CFrame*originalC1:Inverse()

		-- Move the debug part to the target
		--debugPart.CFrame = targetWorldCFrame.Rotation + part0.Position + Vector3.new(0,4,0)

		-- Update the Motor6D's C0
		motor.C0 = (part0.CFrame:Inverse() * targetWorldCFrame).Rotation + motor.C0.Position
		--motor.C1 = CFrame.new()
		-- Update the floor normal gizmo
		--local lookVector = floorNormal
		--local upVector = Vector3.new(0,1,0)
		--if math.abs(lookVector:Dot(upVector)) > 0.99 then
		--	upVector = Vector3.new(1,0,0) -- avoid gimbal lock
		--end
		--local rightVector = upVector:Cross(lookVector).Unit
		--local newUpVector = lookVector:Cross(rightVector).Unit

		--local orientationCFrame = CFrame.lookAlong(hitPosition, floorNormal * 2.5)
		--floorNormalGizmo.CFrame = orientationCFrame
	end
	
	task.wait(0)

end