Ray ignores if the part that detected by ray stand in front of other part

[Misha_Fan122 (TheDevRo)]

I am making a system that the train detects the nearest semaphore and it is detected by ray and the problem is that if something gets on the tracks, for example there is a station, and after the station there is the semaphore itself, then ray will ignore the semaphore. Here is the code:

function detectNearestLight()
	local seat = script.Parent.Floor


	local rayOrigin = seat.Position
	local rayDirection = seat.CFrame.LookVector * distance -- Adjust the length of the ray as needed

	local raycastParams = RaycastParams.new()
	raycastParams.FilterDescendantsInstances = {script.Parent.Parent} 
	raycastParams.FilterType = Enum.RaycastFilterType.Blacklist

	local raycastResult = workspace:Raycast(rayOrigin, rayDirection, raycastParams)

	if raycastResult then
		local hitPart = raycastResult.Instance
		if hitPart then
		if hitPart.Name == "trainlightdetector" then
	
			if player then
				if player.PlayerGui:FindFirstChild("GuiS") then
					local remote = player.PlayerGui.GuiS.RemoteEvent:FireClient(player,"NearestLight",getdistance(seat.Position,raycastResult.Position),tostring(hitPart.LightColor.Value))
				end
			end
		
			
					end	
	end
		
	end
end

[Cozmicweb (Cozmic)]

It’s most likely because your ray’s length is too large.

@Misha_Fan122

local rayDirection = seat.CFrame.LookVector * distance

The distance variable determines the length of the ray. If it’s too large, the ray might skip over the part.

[Misha_Fan122 (TheDevRo)]

the problem that the length specially that it is far away to detect the semaphore

[BendsSpace]

If the station is blocking your raycast, you could use an include list instead of an exclude list and in the list include all of your semaphores.

Ex:

raycastParams.FilterType = Enum.RaycastFilterType.Include
raycastParams.FilterDescendantsInstances = --[Get a list of all your semaphores]

You could get a list of your semaphores by their name or by adding tags to them and using CollectionService:GetTagged([Your tag name])

[Misha_Fan122 (TheDevRo)]

thank you very much it helps!–