-// Copyright (C) 2021 Harry Godden (hgn) - All Rights Reserved
-
-#define _DEFAULT_SOURCE
-#include <unistd.h>
-#include <signal.h>
-
-#define VG_SERVER
-#include "vg/vg.h"
-#include "vg/vg_steam.h"
-#include "vg/vg_steam_networking.h"
-#include "vg/vg_steam_auth.h"
-#include "/home/harry/Documents/carve/network_msg.h"
-
-volatile sig_atomic_t sig_stop;
-
-void inthandler( int signum )
-{
- sig_stop = 1;
-}
-
-/*
- * Runtime connection stuff
- */
-
-static u8 steam_app_ticket[ 1024 ];
-static u32 steam_app_ticket_length;
-
-static HSteamNetConnection cremote;
-static ESteamNetworkingConnectionState cremote_state =
- k_ESteamNetworkingConnectionState_None;
-
-/*
- * Steam API
- */
-void *hSteamNetworkingSockets,
- *hSteamUser;
-
-static void scores_update(void);
-
-static void handle_steam_callback( CallbackMsg_t *msg )
-{
- if( msg->m_iCallback == k_iSteamNetConnectionStatusChangedCallBack )
- {
- SteamNetConnectionStatusChangedCallback_t *info = (void *)msg->m_pubParam;
- vg_info( " Connection status changed for %lu\n", info->m_hConn );
-
- vg_info( " %s -> %s\n",
- string_ESteamNetworkingConnectionState(info->m_info.m_eState) );
- string_ESteamNetworkingConnectionState(info->m_eOldState) );
-
- if( info->m_hConn == cremote )
- {
- cremote_state = info->m_info.m_eState;
- if( info->m_info.m_eState ==
- k_ESteamNetworkingConnectionState_Connected )
- {
- vg_success(" Connected to remote server\n");
- scores_update();
- }
- }
- else
- {
- vg_warn( " Recieved signal from unkown connection\n" );
- }
- }
-}
-
-static void on_auth_ticket_recieved( void *result, void *context )
-{
- EncryptedAppTicketResponse_t *response = result;
-
- if( response->m_eResult == k_EResultOK )
- {
- vg_info( " New app ticket ready\n" );
- }
- else
- {
- vg_warn( " Could not request new encrypted app ticket (%u)\n",
- response->m_eResult );
- }
-
- if( SteamAPI_ISteamUser_GetEncryptedAppTicket( hSteamUser,
- steam_app_ticket,
- vg_list_size(steam_app_ticket),
- &steam_app_ticket_length ))
- {
- vg_success( " Loaded app ticket (%u bytes)\n", steam_app_ticket_length );
- }
- else
- {
- vg_error( " No ticket availible\n" );
- steam_app_ticket_length = 0;
- }
-}
-
-static void request_auth_ticket(void)
-{
- /*
- * TODO Check for one thats cached on the disk and load it.
- * This might be OK though because steam seems to cache the result
- */
-
- vg_info( "Requesting new authorization ticket\n" );
- steam_async *call = steam_new_async();
- call->data = NULL;
- call->p_handler = on_auth_ticket_recieved;
- call->id = SteamAPI_ISteamUser_RequestEncryptedAppTicket( hSteamUser,
- NULL, 0 );
-}
-
-static void server_connect(void)
-{
- /* Connect to server if not connected */
-
- SteamNetworkingIPAddr remoteAddr;
-
-#define USE_LOCALHOST
-#ifdef USE_LOCALHOST
- SteamAPI_SteamNetworkingIPAddr_SetIPv6LocalHost( &remoteAddr, 27402 );
-#else
- const char *server_lon1 = "46.101.34.155:27402";
- SteamAPI_SteamNetworkingIPAddr_ParseString( &remoteAddr, server_lon1 );
-#endif
-
- char buf[256];
- SteamAPI_SteamNetworkingIPAddr_ToString( &remoteAddr, buf, 256, 1 );
- vg_info( "connect to: %s\n", buf );
-
- cremote = SteamAPI_ISteamNetworkingSockets_ConnectByIPAddress(
- hSteamNetworkingSockets, &remoteAddr, 0, NULL );
-}
-
-static void scores_update(void)
-{
- vg_log( "scores_update()\n" );
-
- if( cremote_state == k_ESteamNetworkingConnectionState_Connected )
- {
- /*
- * request updated scores
- */
- netmsg_scores_request req;
- req.inetmsg_id = k_inetmsg_scores_request;
-
- SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
- hSteamNetworkingSockets, cremote, &req,
- sizeof(netmsg_scores_request),
- k_nSteamNetworkingSend_Reliable, NULL );
- }
- else
- {
- /*
- * if we are not connected, make a connection to the server and then in
- * the future this function will be called again when it is connected
- */
- server_connect();
- }
-}
-
-static void poll_connection(void)
-{
- SteamNetworkingMessage_t *messages[32];
- int len;
-
- while(1)
- {
- len = SteamAPI_ISteamNetworkingSockets_ReceiveMessagesOnConnection(
- hSteamNetworkingSockets, cremote, messages, vg_list_size(messages));
-
- if( len <= 0 )
- return;
-
- for( int i=0; i<len; i++ )
- {
- SteamNetworkingMessage_t *msg = messages[i];
-
- if( msg->m_cbSize < sizeof(netmsg_blank) )
- {
- vg_warn( "Discarding message (too small: %d)\n",
- msg->m_cbSize );
- continue;
- }
-
- netmsg_blank *tmp = msg->m_pData;
- if( tmp->inetmsg_id == k_inetmsg_scores_info )
- {
- netmsg_scores_info *info = msg->m_pData;
- vg_log( "Recieved %u score records\n", info->record_count );
-
- SteamAPI_ISteamNetworkingSockets_CloseConnection(
- hSteamNetworkingSockets, cremote, 0, NULL, 1 );
- cremote_state = k_ESteamNetworkingConnectionState_None;
- }
-
- SteamAPI_SteamNetworkingMessage_t_Release( msg );
- }
- }
-}
-
-static u64 in_server_ticks( double seconds )
-{
- return (u64)(seconds / 0.1);
-}
-
-int main( int argc, char *argv[] )
-{
- signal( SIGINT, inthandler );
-
- if( !SteamAPI_Init() )
- {
- vg_error( "Steamworks failed to initialize\n" );
- return 0;
- }
-
- SteamAPI_ManualDispatch_Init();
- HSteamPipe hsteampipe = SteamAPI_GetHSteamPipe();
- vg_success( "Steamworks API running\n" );
-
- /* Connect interfaces */
- hSteamNetworkingSockets = SteamAPI_SteamNetworkingSockets_SteamAPI();
- hSteamUser = SteamAPI_SteamUser();
-
- request_auth_ticket();
-
- /* TODO: Request current scores */
-
-#if 0
-
-#endif
-
- u64 server_ticks = 8000, last_update = 0;
-
- while( !sig_stop )
- {
- steamworks_event_loop( hsteampipe, handle_steam_callback );
- poll_connection();
-
- usleep(100000);
- server_ticks ++;
-
- if( server_ticks > (last_update + in_server_ticks(60.0)) )
- {
- last_update = server_ticks;
- scores_update();
- }
- }
-
- vg_info( "Shutting down\n..." );
- SteamAPI_Shutdown();
-
- return 0;
-}