Checking if a knob is on the left/right side of a double door

Help and Feedback Scripting Support
1

So I’ve set my double door up, but need to make sure the right handle’s tween is inverted, as otherwise it goes the wrong direction.

image

I attempted to do this with a ToObjectSpace statement

if currentKnob.CFrame:ToObjectSpace(doorModelBoundingBox).Position.X > 0 then

However, since the right door is actually a invert of the left door, that means it’s relative space also changed, making this check not function as intended, causing it to fire onto all handles

image
image1298×1004 160 KB

2

im not 100% sure if this is what you where trying to achieve and i cant guarantee this is the best way but this is what i came up with:

local CheckSide = function(From:BasePart,To:BasePart,Dir:string)
	return CFrame.new(From.Position,To.Position).LookVector.Unit[Dir] > 0
end

Side = CheckSide(workspace.Door1,workspace.Door1.Knob,"X")

the Dir(Direction) is relative to the from part true being left, false being right and should work no matter the orientation of the door itself because its a look vector sorry if its not exactly what you wanted.

3

Modified this to

local CheckSide = function(From:CFrame, To:MeshPart, Dir:string)
			return CFrame.new(From.Position,To.Position).LookVector.Unit[Dir] > 0
		end

		local Side = CheckSide(doorModelBoundingBox,currentKnob,"X")
		
		if Side == true then
			print("true " .. currentKnob.Name)
			knobRotationRad = knobRotationRad * -1
			knobPartialRotationRad = knobPartialRotationRad * -1
		end

Which I found a few oddities with

  1. The right knob actually returns true with this setup instead of false
  2. This works completely fine normally but breaks if I rotate the entire door by 90 degrees across the y axis, if I do that I have to set the Dir to Z instead

image
Functional

image
If the door model is rotated

4

Ok used

local CheckSide = function(From:CFrame, To:MeshPart)

	if math.abs(CFrame.new(From.Position,To.Position).LookVector.X) > 0.55 then
		return CFrame.new(From.Position,To.Position).LookVector.Unit["X"] < 0
	else
		return CFrame.new(From.Position,To.Position).LookVector.Unit["Z"] > 0
	end

end

local Side = CheckSide(doorModelBoundingBox,currentKnob)

if Side == false then
	knobRotationRad = knobRotationRad * -1
	knobPartialRotationRad = knobPartialRotationRad * -1
end

And it worked

Weirdly after

this 
	if math.abs(CFrame.new(From.Position,To.Position).LookVector.X) > 0.5 then
		return CFrame.new(From.Position,To.Position).LookVector.Unit["X"] < 0
	else
		return CFrame.new(From.Position,To.Position).LookVector.Unit["Z"] > 0
	end

stopped working for no explainable reason.

So I’m thinking my current workaround is kinda shakey and might not scale well