Client Scripting - po-devs/pokemon-online GitHub Wiki
The server can be modified with serverside scripting and that's also possible for clients. It allows you to build your own features, like custom ignore system, friend system and so on.
Client Script Functions
Just like server, client has it's own script functions. While the majority of functions are properties of the client object, there are some sys functions available you may know from server scripting (for example the timer functions).
The Network object
The network object allows the client to communicate to the server and do things like sending a message to everyone.
Client Script Events
The script events in client scripts are properties of the script object. Stoppable events can be stopped with sys.stopEvent().