Filtering enabled breaks almost all my scripts?
So since my game was experimental mode and there was this one update I had to go for filtering enabled and the problem is that it makes tools invisible for other players only the animations are able to be seen by other players. If I would go for re creating every tool I have in my game I just better stop.
Does anyone know what I have to do or what the actual problem is here ?
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2 answers
Filtering Enabled
Filtering enabled at it's most base form is a disconnection between the Client and the Server. The client side of a game uses Local Scripts as well as Module Scripts, while the server side uses Scripts and Module Scripts. A Local Script will NOT work on the server side. Also as a side note you cannot use game.Players.LocalPlayer in a Script, it only works in Local Scripts. When Filtering Enabled is active, you cannot change anything on the server side from the client side, and you cannot change anything on the client side from the server side.
Server - Client Communication
In order for the server and client to communicate, you need to use RemoteEvents and RemoteFunctions (link found at bottom). These allow you to talk between the two sides by passing information and data back and forth. Note that you cannot pass any Instances between the functions only Booleans, Numbers, Strings, Tables, Vectors, CFrames, and a few others, but those are the most commonly used. Futher on RemoteEvents and RemoteFunctions - RemoteEvents fire an event to one of the two sides passing values, but not returning anything. RemoteFunctions on the other hand pass values, and also return a value.
Quick Note RemoteFunctions and RemoteEvents are most commonly placed in the ReplicatedStorage since it is shared by both the Server and the Client, so both are able to see it and use it.
Ex. I cannot create a part and move it on the client side, it would only replicate for the one client - not the entire game.
Client You are a client, all players are considered clients. Each client has their own version of the game. Anything that happens on the client side of things does NOT replicate to the other clients or the server (aside from things like player owned physics, that replicates).
Client Sided Examples: ReplicatedFirst, PlayerGui, ReplicatedStorage
Server The server own it's own copy of the game, anything that happens on the server is replicated to all clients, meaning every person in the game will be able to see it.
Server Sided Examples: ServerScriptService, ServerStorage, ReplicatedStorage
In Terms of Security Anything on the client side can be looked at and taken by exploits. Since the client creates it's own version of the game, they can do whatever they want with it. That is why it's extremely important that you don't keep any important information on the client side.
Ex. If I had a Module Script on the client side that gave players money. An exploiter could look at that Module Script, determine which function you're using inside the module script as well as what parameters it takes, and then utilize it to give their self money.
Helpful Links
https://wiki.roblox.com/index.php?title=API:Class/Workspace/FilteringEnabled https://wiki.roblox.com/index.php?title=Remote_Functions_%26_Events http://robloxdev.com/articles/Experimental-Mode
Didn't got your exact problem, but what FE does to stops LocalScripts telling Server what to do. Also serverscripts can't reach some of client stuff. What you need to do is to use RemoteEvents and RemoteFunctions between LocalScripts and ServerScripts to keep it running. Script does Server's job, LocalScript does client's job.