summaryrefslogtreecommitdiff
path: root/src/game-server/main-game.cpp
blob: 3a12cdb85ad1f0de8be00216ee152e865f07a23a (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
/*
 *  The Mana Server
 *  Copyright (C) 2004-2010  The Mana World Development Team
 *  Copyright (C) 2010-2012  The Mana Developers
 *
 *  This file is part of The Mana Server.
 *
 *  The Mana Server 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
 *  any later version.
 *
 *  The Mana Server 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with The Mana Server.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "common/configuration.h"
#include "common/defines.h"
#include "common/permissionmanager.h"
#include "common/resourcemanager.h"
#include "game-server/accountconnection.h"
#include "game-server/attributemanager.h"
#include "game-server/gamehandler.h"
#include "game-server/emotemanager.h"
#include "game-server/itemmanager.h"
#include "game-server/mapmanager.h"
#include "game-server/monstermanager.h"
#include "game-server/skillmanager.h"
#include "game-server/specialmanager.h"
#include "game-server/statusmanager.h"
#include "game-server/postman.h"
#include "game-server/state.h"
#include "net/bandwidth.h"
#include "net/connectionhandler.h"
#include "net/messageout.h"
#include "scripting/scriptmanager.h"
#include "utils/logger.h"
#include "utils/processorutils.h"
#include "utils/stringfilter.h"
#include "utils/timer.h"
#include "utils/mathutils.h"

#include <cstdlib>
#include <getopt.h>
#include <iostream>
#include <signal.h>
#include <physfs.h>
#include <enet/enet.h>
#include <unistd.h>

#ifdef __MINGW32__
#include <windows.h>
#include "common/winver.h"
#define usleep(usec) (Sleep ((usec) / 1000), 0)
#endif

#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif

using utils::Logger;

#define DEFAULT_LOG_FILE                    "manaserv-game.log"
#define DEFAULT_MAIN_SCRIPT_FILE            "scripts/main.lua"

static int const WORLD_TICK_SKIP = 2; /** tolerance for lagging behind in world calculation) **/

/** Timer for world ticks */
static utils::Timer worldTimer(WORLD_TICK_MS);
static int currentTick = 0;     /**< Current world time in ticks */
static bool running = true;     /**< Whether the server keeps running */

utils::StringFilter *stringFilter; /**< Slang's Filter */

AttributeManager *attributeManager = new AttributeManager(DEFAULT_ATTRIBUTEDB_FILE);
ItemManager *itemManager = new ItemManager(DEFAULT_ITEMSDB_FILE, DEFAULT_EQUIPDB_FILE);
MonsterManager *monsterManager = new MonsterManager(DEFAULT_MONSTERSDB_FILE);
SkillManager *skillManager = new SkillManager(DEFAULT_SKILLSDB_FILE);
SpecialManager *specialManager = new SpecialManager(DEFAULT_SPECIALSDB_FILE);
EmoteManager *emoteManager = new EmoteManager(DEFAULT_EMOTESDB_FILE);

/** Core game message handler */
GameHandler *gameHandler;

/** Account server message handler */
AccountConnection *accountHandler;

/** Post Man **/
PostMan *postMan;

/** Bandwidth Monitor */
BandwidthMonitor *gBandwidth;

/** Callback used when SIGQUIT signal is received. */
static void closeGracefully(int)
{
    running = false;
}

static void initializeServer()
{
    // Used to close via process signals
#if (defined __USE_UNIX98 || defined __FreeBSD__)
    signal(SIGQUIT, closeGracefully);
#endif
    signal(SIGINT, closeGracefully);
    signal(SIGTERM, closeGracefully);

    std::string logFile = Configuration::getValue("log_gameServerFile",
                                                  DEFAULT_LOG_FILE);

    // Initialize PhysicsFS
    PHYSFS_init("");

    Logger::initialize(logFile);

    // --- Initialize the managers
    // Initialize the slang's and double quotes filter.
    stringFilter = new utils::StringFilter;

    ResourceManager::initialize();
    ScriptManager::initialize();   // Depends on ResourceManager
    if (MapManager::initialize(DEFAULT_MAPSDB_FILE) < 1)
    {
        LOG_FATAL("The Game Server can't find any valid/available maps.");
        exit(EXIT_MAP_FILE_NOT_FOUND);
    }
    attributeManager->initialize();
    skillManager->initialize();
    specialManager->initialize();
    itemManager->initialize();
    monsterManager->initialize();
    emoteManager->initialize();
    StatusManager::initialize(DEFAULT_STATUSDB_FILE);
    PermissionManager::initialize(DEFAULT_PERMISSION_FILE);

    std::string mainScript = Configuration::getValue("script_mainFile",
                                                     DEFAULT_MAIN_SCRIPT_FILE);
    ScriptManager::loadMainScript(mainScript);

    // --- Initialize the global handlers
    // FIXME: Make the global handlers global vars or part of a bigger
    // singleton or a local variable in the event-loop
    gameHandler = new GameHandler;
    accountHandler = new AccountConnection;
    postMan = new PostMan;
    gBandwidth = new BandwidthMonitor;

    // --- Initialize enet.
    if (enet_initialize() != 0)
    {
        LOG_FATAL("An error occurred while initializing ENet");
        exit(EXIT_NET_EXCEPTION);
    }

    // Pre-calculate the needed trigomic function values
    utils::math::init();

    // Initialize the processor utility functions
    utils::processor::init();

    // Seed the random number generator
    std::srand( time(NULL) );
}


static void deinitializeServer()
{
    // Write configuration file
    Configuration::deinitialize();

    // Stop world timer
    worldTimer.stop();

    // Quit ENet
    enet_deinitialize();

    // Destroy message handlers
    delete gameHandler; gameHandler = 0;
    delete accountHandler; accountHandler = 0;
    delete postMan; postMan = 0;
    delete gBandwidth; gBandwidth = 0;

    // Destroy Managers
    delete stringFilter; stringFilter = 0;
    delete monsterManager; monsterManager = 0;
    delete skillManager; skillManager = 0;
    delete itemManager; itemManager = 0;
    delete emoteManager; emoteManager = 0;
    MapManager::deinitialize();
    StatusManager::deinitialize();
    ScriptManager::deinitialize();

    PHYSFS_deinit();
}


/**
 * Show command line arguments.
 */
static void printHelp()
{
    std::cout << "manaserv" << std::endl << std::endl
              << "Options: " << std::endl
              << "  -h --help          : Display this help" << std::endl
              << "     --config <path> : Set the config path to use."
              << " (Default: ./manaserv.xml)" << std::endl
              << "     --verbosity <n> : Set the verbosity level" << std::endl
              << "                        - 0. Fatal Errors only." << std::endl
              << "                        - 1. All Errors." << std::endl
              << "                        - 2. Plus warnings." << std::endl
              << "                        - 3. Plus standard information." << std::endl
              << "                        - 4. Plus debugging information." << std::endl
              << "     --port <n>      : Set the default port to listen on."
              << std::endl;
    exit(EXIT_NORMAL);
}

struct CommandLineOptions
{
    CommandLineOptions():
        verbosity(Logger::Warn),
        verbosityChanged(false),
        port(DEFAULT_SERVER_PORT + 3),
        portChanged(false)
    {}

    std::string configPath;

    Logger::Level verbosity;
    bool verbosityChanged;

    int port;
    bool portChanged;
};

/**
 * Parse the command line arguments
 */
static void parseOptions(int argc, char *argv[], CommandLineOptions &options)
{
    const char *optString = "h";

    const struct option longOptions[] =
    {
        { "help",       no_argument,       0, 'h' },
        { "config",     required_argument, 0, 'c' },
        { "verbosity",  required_argument, 0, 'v' },
        { "port",       required_argument, 0, 'p' },
        { 0, 0, 0, 0 }
    };

    while (optind < argc)
    {
        int result = getopt_long(argc, argv, optString, longOptions, NULL);

        if (result == -1)
            break;

        switch (result)
        {
            default: // Unknown option.
            case 'h':
                // Print help.
                printHelp();
                break;
            case 'c':
                // Change config filename and path.
                options.configPath = optarg;
                break;
            case 'v':
                options.verbosity = static_cast<Logger::Level>(atoi(optarg));
                options.verbosityChanged = true;
                LOG_INFO("Using log verbosity level " << options.verbosity);
                break;
            case 'p':
                options.port = atoi(optarg);
                options.portChanged = true;
                break;
        }
    }
}


/**
 * Main function, initializes and runs server.
 */
int main(int argc, char *argv[])
{
    // Parse command line options
    CommandLineOptions options;
    parseOptions(argc, argv, options);

    if (!Configuration::initialize(options.configPath))
    {
        LOG_FATAL("Refusing to run without configuration!");
        exit(EXIT_CONFIG_NOT_FOUND);
    }

    // Check inter-server password.
    if (Configuration::getValue("net_password", std::string()).empty())
    {
        LOG_FATAL("SECURITY WARNING: 'net_password' not set!");
        exit(EXIT_BAD_CONFIG_PARAMETER);
    }

    if (!options.verbosityChanged)
        options.verbosity = static_cast<Logger::Level>(
                               Configuration::getValue("log_gameServerLogLevel",
                                                       options.verbosity) );
    Logger::setVerbosity(options.verbosity);

    // General initialization
    initializeServer();

#ifdef PACKAGE_VERSION
    LOG_INFO("The Mana Game Server v" << PACKAGE_VERSION);
#else
    LOG_INFO("The Mana Game Server (unknown version)");
#endif
    LOG_INFO("Manaserv Protocol version " << ManaServ::PROTOCOL_VERSION
             << ", " << "Enet version " << ENET_VERSION_MAJOR << "."
             << ENET_VERSION_MINOR << "." << ENET_VERSION_PATCH);

    // When the gameListenToClientPort is set, we use it.
    // Otherwise, we use the accountListenToClientPort + 3 if the option is set.
    // If neither, the DEFAULT_SERVER_PORT + 3 is used.
    if (!options.portChanged)
    {
        // Prepare the fallback value
        options.port = Configuration::getValue("net_accountListenToClientPort",
                                               0) + 3;
        if (options.port == 3)
            options.port = DEFAULT_SERVER_PORT + 3;

        // Set the actual value of options.port
        options.port = Configuration::getValue("net_gameListenToClientPort",
                                               options.port);
    }

    bool debugNetwork = Configuration::getBoolValue("net_debugMode", false);
    MessageOut::setDebugModeEnabled(debugNetwork);

    // Make an initial attempt to connect to the account server
    // Try again after longer and longer intervals when connection fails.
    bool isConnected = false;
    int waittime = 0;
    while (!isConnected && running)
    {
        LOG_INFO("Connecting to account server");
        isConnected = accountHandler->start(options.port);
        if (!isConnected)
        {
            LOG_INFO("Retrying in " << ++waittime << " seconds");
            usleep(waittime * 1000);
        }
    }

    if (!gameHandler->startListen(options.port))
    {
        LOG_FATAL("Unable to create an ENet server host.");
        return EXIT_NET_EXCEPTION;
    }

    // Initialize world timer
    worldTimer.start();

    // Account connection lost flag
    bool accountServerLost = false;

    while (running)
    {
        int elapsedTicks = worldTimer.poll();

        if (elapsedTicks == 0)
        {
            worldTimer.sleep();
            continue;
        }

        if (elapsedTicks > WORLD_TICK_SKIP)
        {
            LOG_WARN("Skipping "<< elapsedTicks - 1 << " ticks.");
            elapsedTicks = 1;
        }

        while (elapsedTicks > 0)
        {
            currentTick++;
            elapsedTicks--;

            // Print world time at 10 second intervals to show we're alive
            if (currentTick % 100 == 0)
                LOG_INFO("World time: " << currentTick);

            if (accountHandler->isConnected())
            {
                accountServerLost = false;

                // Handle all messages that are in the message queues
                accountHandler->process();

                if (currentTick % 100 == 0) {
                    accountHandler->syncChanges(true);
                    // force sending changes to the account server every 10 secs.
                }

                if (currentTick % 300 == 0)
                {
                    accountHandler->sendStatistics();
                    LOG_INFO("Total Account Output: " << gBandwidth->totalInterServerOut() << " Bytes");
                    LOG_INFO("Total Account Input: " << gBandwidth->totalInterServerIn() << " Bytes");
                    LOG_INFO("Total Client Output: " << gBandwidth->totalClientOut() << " Bytes");
                    LOG_INFO("Total Client Input: " << gBandwidth->totalClientIn() << " Bytes");
                }
            }
            else
            {
                // If the connection to the account server is lost.
                // Every players have to be logged out
                if (!accountServerLost)
                {
                    LOG_WARN("The connection to the account server was lost.");
                    accountServerLost = true;
                }

                // Try to reconnect every 200 ticks
                if (currentTick % 200 == 0)
                {
                    accountHandler->start(options.port);
                }
            }
            gameHandler->process();
            // Update all active objects/beings
            GameState::update(currentTick);
            // Send potentially urgent outgoing messages
            gameHandler->flush();
        }
    }

    LOG_INFO("Received: Quit signal, closing down...");
    gameHandler->stopListen();
    accountHandler->stop();
    deinitializeServer();

    return EXIT_NORMAL;
}