IsServer
Description
Returns true if the script is running on a server.
Any running instance of ZDoom that performs authoritative gameplay calculations is considered to be a server.
The same instance can be both a client and a server (e.g. in singleplayer).
The following are servers:
A singleplayer game.
A server in client-server Zandronum multiplayer (but not the clients).
A client that is also acting as a server for other clients (this mode is not supported in Zandronum yet but other game engines have it).
A player in (G)ZDoom multiplayer, which is not client-server, but makes all players run exactly the same game.
All players are both servers and clients in (G)ZDoom multiplayer, which is not client-server.
Examples
Using IsClient and IsServer correctly ensures that your mod runs correctly in both singleplayer and multiplayer:
if (IsServer())
{
// Run serverside gameplay code.
}
if (IsClient())
{
// Draw hud, spawn effects.
}