Detection system for a script to work

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#1

Hello, I am trying to make a guess the character system, and I have successfully made the door system. I am now trying to make it so the player must be standing on a physical part/checkpoint in order for the door script to work as well.

Here is my current code for the door :

door = script.Parent
function onChatted(msg, recipient, speaker) 
	local source = string.lower(speaker.Name) 
	msg = string.lower(msg) 
	local char = script.Parent.TheCharacter
	local aliases = string.split(char:GetAttribute("Alias"), ", ") -- using ', ' since that was what the attribute uses
	local function unlockDoor()
		door.CanCollide = false 
		door.Transparency = 0.7 
		wait(4) 
		door.CanCollide = true 
		door.Transparency = 0 
	end
	if msg == string.lower(char.Value) then 
		unlockDoor()
	else
		for i, alias in pairs(aliases) do
			if msg == string.lower(alias) then
				unlockDoor()
				break
			end
		end
	end 
end 
game.Players.ChildAdded:connect(function(plr)
	plr.Chatted:connect(function(msg, recipient) onChatted(msg, recipient, plr) end) 
end)

What I have tried
I have tried using a remote event for the Touched function but I could not manage to get it to work.

#2

You could use workspace:ArePartsTouchingOthers() within this code and have to check with the speaker’s HumanoidRootPart and the door’s physical part/checkpoint. It could look something like this

local speakerCharacter = speaker.Character
-- The checkpoint should be some invisible block that the player can fit inside of
local checkpoint = workspace.DoorCheckpoint

local partsList = {speakerCharacter.PrimaryPart, checkpoint}
if workspace:ArePartsTouchingOthers(partsList, 0) then
    print('Player is inside checkpoint')
else
    print('Player is not inside checkpoint')
end