Overview

• In general you filter based on game mode, and then you can select a supported map.
• Maps can support multiple game modes, so a game mode contains a map.

Server

• Takes in client_id_to_server_character and constructs a client_id_to_gamemode_character (or something of this form).
• A game mode is a system which has custom logic of the form:

logic_when_shot_by_hitscan_weapon(attacker, victim)

• Each parameter is a gamemode character.
• Each gamemode has an update function and internal state.
• The main loop calls the update function of whatever game mode is active.

Client

Consider what client data is required to render the game mode:

• Custom objects that only exist for that game mode (e.g. flags in CTF).
• Custom leaderboards.
• Endscreen UIs and other UI state specific to the gamemode.

Networking / Packets

After identifying what data is required to completely render the gamemode, define the packets that contain that information.

The server gamemode should expose a function that returns the GameState for that gamemode; that packet is then sent to clients.