Raycast only reflects off of parts properly in a certain direction

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1

Hey there - I’m attempting to make a laser gun that bounces off of walls.

I have this problem where if I fire in one direction, it’ll reflect perfectly, but if it’s the opposite direction then the ray will just keep going straight and if it’s anything in between the reflection will work but be incorrect depending on the angle.

Here’s my code for calculating the reflection:

local Raycast = workspace:Raycast(
	origin, 
	((direction - origin).Unit) * maxdist, 
	params)		
local Position
local Part
local Distance
local Normal
local Reflect

if not Raycast then		
	Distance = maxdist	
	Position = origin + (((origin - origin).Unit) * maxdist)
else
	Position = Raycast.Position
	Part = Raycast.Instance
	Distance = (origin - Position).magnitude	
	Normal = Raycast.Normal
    Reflect = direction - 2 * (direction:Dot(Normal)) * Normal
    direction = Reflect
end

What am I doing wrong here?