d_loop.h

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//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005-2014 Simon Howard
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// DESCRIPTION:
//  Main loop stuff.
//
 
#ifndef __D_LOOP__
#define __D_LOOP__
 
#include "net_defs.h"
 
// Callback function invoked while waiting for the netgame to start.
// The callback is invoked when new players are ready. The callback
// should return true, or return false to abort startup.
 
typedef boolean (*netgame_startup_callback_t)(int ready_players,
                                              int num_players);
 
typedef struct
{
    // Read events from the event queue, and process them.
 
    void (*ProcessEvents)();
 
    // Given the current input state, fill in the fields of the specified
    // ticcmd_t structure with data for a new tic.
 
    void (*BuildTiccmd)(ticcmd_t *cmd, int maketic);
 
    // Advance the game forward one tic, using the specified player input.
 
    void (*RunTic)(ticcmd_t *cmds, boolean *ingame);
 
    // Run the menu (runs independently of the game).
 
    void (*RunMenu)();
} loop_interface_t;
 
// Register callback functions for the main loop code to use.
void D_RegisterLoopCallbacks(loop_interface_t *i);
 
// Create any new ticcmds and broadcast to other players.
void NetUpdate (void);
 
// Broadcasts special packets to other players
//  to notify of game exit
void D_QuitNetGame (void);
 
//? how many ticks to run?
void TryRunTics (void);
 
// Called at start of game loop to initialize timers
void D_StartGameLoop(void);
 
// Initialize networking code and connect to server.
 
boolean D_InitNetGame(net_connect_data_t *connect_data);
 
// Start game with specified settings. The structure will be updated
// with the actual settings for the game.
 
void D_StartNetGame(net_gamesettings_t *settings,
                    netgame_startup_callback_t callback);
 
extern boolean singletics;
extern int gametic, ticdup;
 
#endif