How would I make a player invisible only to certain players? - lua

Question

Basically what I've done so far is add a boolValue to every player, and if that boolValue is set to true, they can see invisible people, if it is false, they can't. I am clueless about the code currently so I have no idea how to begin. I'm also changing the value of the Bool Value through a tool.

Answer 1

The key to making one player invisible only to certain players is the understanding that any changes made to the world in a LocalScript are only visible to that player. They are not replicated between other clients. So, if we can set up a system where LocalScripts can be told to turn a specific player invisible, that player will vanish from their screen and their screen only.
So if we had that system, Player Two could say, "Hey game server, could you let the people know to turn me invisible!". That message would go up to the server, the server would send it out to a bunch of different clients, and each client would make the change locally using their LocalScripts, and the player would effectively turn invisible on their screen.
So even though Player Two looks to be invisible to Players One and Three, to the game server, nothing is different or out of the ordinary, the changes are localized entirely to each player's version of the world.
One way to do this is to use a setup like this :
A Tool in StarterPack to allow players to control their visibility
A BoolValue inside that tool to hold onto the visiblity state
A LocalScript to control the tool's logic
A RemoteEvent in ReplicatedStorage
A Script in ServerScriptService to handle the event routing
In the LocalScript, you would have something like this :
local tool = script.Parent
local IsHidden = tool:WaitForChild("IsHidden", 5)
local TogglePlayerVisible = game.ReplicatedStorage.TogglePlayerVisible
local localPlayer = game.Players.LocalPlayer
-- debug
tool.Name = "Turn Invisible"
tool.RequiresHandle = false
IsHidden.Value = false
-- 1) When a player activates the tool, flip the BoolValue
tool.Activated:Connect(function()
IsHidden.Value = not IsHidden.Value
tool.Name = IsHidden.Value and "Become Visible" or "Turn Invisible"
end)
-- 2) When the BoolValue changes, tell the server about it
IsHidden.Changed:Connect(function(updatedValue)
TogglePlayerVisible:FireServer(updatedValue)
end)
-- 4) When the server tells us a player has used the tool, make that player invisible locally
TogglePlayerVisible.OnClientEvent:Connect(function(player, isHidden)
local invisible = 1.0
local visible = 0.0
-- if we are the one who sent it, only make us a little invisible
if (player.Name == localPlayer.Name) then
invisible = 0.7
end
-- loop over all of the parts in a player's Character Model and hide them
for _, part in ipairs(player.Character:GetDescendants()) do
local shouldTogglePart = true
-- handle exceptions
if not (part:IsA("BasePart") or part:IsA("Decal")) then
shouldTogglePart = false
elseif part.Name == "HumanoidRootPart" then
shouldTogglePart = false
end
-- hide or show all the parts and decals
if shouldTogglePart then
part.Transparency = isHidden and invisible or visible
end
end
end)
And in the Script, you would have something like this :
local TogglePlayerVisible = game.ReplicatedStorage.TogglePlayerVisible
-- 3) whenever a player triggers this event, send it out to all players
TogglePlayerVisible.OnServerEvent:Connect(function(player, isVisible)
TogglePlayerVisible:FireAllClients(player, isVisible)
end)
If you would like only specific players to not see a player, then you can modify step 3 so that instead of using TogglePlayerVisible:FireAllClients, you would specifically choose which players to send the message to using FireClient.