C++ NETend函数代码示例

/** Receive droid and transporter loading information
 *
 *  \sa sendDroidEmbark(),sendDroidDisEmbark(),recvDroidDisEmbark()
 */
BOOL recvDroidEmbark(NETQUEUE queue)
{
	DROID* psDroid;
	DROID* psTransporterDroid;
	BOOL bDroidRemoved;

	NETbeginDecode(queue, GAME_DROIDEMBARK);
	{
		uint8_t player;
		uint32_t droidID;
		uint32_t transporterID;

		NETuint8_t(&player);
		NETuint32_t(&droidID);
		NETuint32_t(&transporterID);

		// we have to find the droid on our (local) list first.
		if (!IdToDroid(droidID, player, &psDroid))
		{
			NETend();
			// Possible it already died? (sync error?)
			debug(LOG_WARNING, "player's %d droid %d wasn't found?", player,droidID);
			return false;
		}
		if (!IdToDroid(transporterID, player, &psTransporterDroid))
		{
			NETend();
			// Possible it already died? (sync error?)
			debug(LOG_WARNING, "player's %d transport droid %d wasn't found?", player,transporterID);
			return false;
		}

		if (psDroid == NULL)
		{
			// how can this happen?
			return true;
		}

		// Take it out of the world without destroying it (just removes it from the droid list)
		bDroidRemoved = droidRemove(psDroid, apsDroidLists);

		// Init the order for when disembark
		psDroid->order = DORDER_NONE;
		setDroidTarget(psDroid, NULL);
		psDroid->psTarStats = NULL;

		if (bDroidRemoved)
		{
			// and now we need to add it to their transporter group!
			grpJoin(psTransporterDroid->psGroup, psDroid);
		}
		else
		{
			// possible sync error?
			debug(LOG_WARNING, "Eh? Where did unit %d go? Couldn't load droid onto transporter.", droidID);
		}
	}
	NETend();
	return true;
}

// recv
BOOL recvDroidSecondary(NETQUEUE queue)
{
	DROID*          psDroid;
	SECONDARY_ORDER sec = DSO_ATTACK_RANGE;
	SECONDARY_STATE state = DSS_NONE;

	NETbeginDecode(queue, GAME_SECONDARY);
	{
		uint8_t player;
		uint32_t droid;

		NETuint8_t(&player);
		NETuint32_t(&droid);
		NETenum(&sec);
		NETenum(&state);

		// If we can not find the droid should we not ask for it?
		if (!IdToDroid(droid, player, &psDroid))
		{
			NETend();
			return false;
		}
	}
	NETend();

	// Set the droids secondary order
	turnOffMultiMsg(true);
	secondarySetState(psDroid, sec, state);
	turnOffMultiMsg(false);

	return true;
}

// accept and process incoming ping messages.
bool recvPing(NETQUEUE queue)
{
	bool	isNew = false;
	uint8_t	sender, us = selectedPlayer;
	uint8_t challenge[sizeof(pingChallenge)];
	EcKey::Sig challengeResponse;

	NETbeginDecode(queue, NET_PING);
	NETuint8_t(&sender);
	NETbool(&isNew);
	if (isNew)
	{
		NETbin(challenge, sizeof(pingChallenge));
	}
	else
	{
		NETbytes(&challengeResponse);
	}
	NETend();

	if (sender >= MAX_PLAYERS)
	{
		debug(LOG_ERROR, "Bad NET_PING packet, sender is %d", (int)sender);
		return false;
	}

	// If this is a new ping, respond to it
	if (isNew)
	{
		challengeResponse = getMultiStats(us).identity.sign(&challenge, sizeof(pingChallenge));

		NETbeginEncode(NETnetQueue(sender), NET_PING);
		// We are responding to a new ping
		isNew = false;

		NETuint8_t(&us);
		NETbool(&isNew);
		NETbytes(&challengeResponse);
		NETend();
	}
	// They are responding to one of our pings
	else
	{
		if (!getMultiStats(sender).identity.empty() && !getMultiStats(sender).identity.verify(challengeResponse, pingChallenge, sizeof(pingChallenge)))
		{
			// Either bad signature, or we sent more than one ping packet and this response is to an older one than the latest.
			debug(LOG_NEVER, "Bad and/or old NET_PING packet, alleged sender is %d", (int)sender);
			return false;
		}

		// Work out how long it took them to respond
		ingame.PingTimes[sender] = (realTime - PingSend[sender]) / 2;

		// Note that we have received it
		PingSend[sender] = 0;
	}

	return true;
}

// ////////////////////////////////////////////////////////////////////////////
// Network File packet processor.
bool recvMapFileRequested(NETQUEUE queue)
{
	//char mapStr[256],mapName[256],fixedname[256];
	uint32_t player;

	PHYSFS_sint64 fileSize_64;
	PHYSFS_file	*pFileHandle;

	if(!NetPlay.isHost)				// only host should act
	{
		ASSERT(false, "Host only routine detected for client!");
		return false;
	}

	//	Check to see who wants the file
	NETbeginDecode(queue, NET_FILE_REQUESTED);
	NETuint32_t(&player);
	NETend();

	if (!NetPlay.players[player].wzFile.isSending)
	{
		NetPlay.players[player].needFile = true;
		NetPlay.players[player].wzFile.isCancelled = false;
		NetPlay.players[player].wzFile.isSending = true;

		LEVEL_DATASET *mapData = levFindDataSet(game.map, &game.hash);

		addConsoleMessage("Map was requested: SENDING MAP!",DEFAULT_JUSTIFY, SYSTEM_MESSAGE);

		char *mapStr = mapData->realFileName;
		debug(LOG_NET, "Map was requested. Looking for %s", mapStr);

		// Checking to see if file is available...
		pFileHandle = PHYSFS_openRead(mapStr);
		if (pFileHandle == NULL)
		{
			debug(LOG_ERROR, "Failed to open %s for reading: %s", mapStr, PHYSFS_getLastError());
			debug(LOG_FATAL, "You have a map (%s) that can't be located.\n\nMake sure it is in the correct directory and or format! (No map packs!)", mapStr);
			// NOTE: if we get here, then the game is basically over, The host can't send the file for whatever reason...
			// Which also means, that we can't continue.
			debug(LOG_NET, "***Host has a file issue, and is being forced to quit!***");
			NETbeginEncode(NETbroadcastQueue(), NET_HOST_DROPPED);
			NETend();
			abort();
		}

		// get the file's size.
		fileSize_64 = PHYSFS_fileLength(pFileHandle);
		debug(LOG_NET, "File is valid, sending [directory: %s] %s to client %u", PHYSFS_getRealDir(mapStr), mapStr, player);

		NetPlay.players[player].wzFile.pFileHandle = pFileHandle;
		NetPlay.players[player].wzFile.fileSize_32 = (int32_t) fileSize_64;		//we don't support 64bit int nettypes.
		NetPlay.players[player].wzFile.currPos = 0;

		NETsendFile(game.map, game.hash, player);
	}
	return true;
}

void recvMultiStats(NETQUEUE queue)
{
	uint32_t playerIndex;

	NETbeginDecode(queue, NET_PLAYER_STATS);
	// Retrieve the ID number of the player for which we need to
	// update the stats
	NETuint32_t(&playerIndex);

	if (playerIndex >= MAX_PLAYERS)
	{
		NETend();
		return;
	}


	if (playerIndex != queue.index && queue.index != NET_HOST_ONLY)
	{
		HandleBadParam("NET_PLAYER_STATS given incorrect params.", playerIndex, queue.index);
		NETend();
		return;
	}

	// we don't what to update ourselves, we already know our score (FIXME: rewrite setMultiStats())
	if (!myResponsibility(playerIndex))
	{
		// Retrieve the actual stats
		NETuint32_t(&playerStats[playerIndex].played);
		NETuint32_t(&playerStats[playerIndex].wins);
		NETuint32_t(&playerStats[playerIndex].losses);
		NETuint32_t(&playerStats[playerIndex].totalKills);
		NETuint32_t(&playerStats[playerIndex].totalScore);
		NETuint32_t(&playerStats[playerIndex].recentKills);
		NETuint32_t(&playerStats[playerIndex].recentScore);
		EcKey::Key identity;
		NETbytes(&identity);
		EcKey::Key prevIdentity;
		if (!playerStats[playerIndex].identity.empty())
		{
			prevIdentity = playerStats[playerIndex].identity.toBytes(EcKey::Public);
		}
		playerStats[playerIndex].identity.clear();
		if (!identity.empty())
		{
			playerStats[playerIndex].identity.fromBytes(identity, EcKey::Public);
		}
		if (identity != prevIdentity)
		{
			ingame.PingTimes[playerIndex] = PING_LIMIT;
		}
	}
	NETend();
}

// process a destroy feature msg.
bool recvDestroyFeature(NETQUEUE queue)
{
	FEATURE *pF;
	uint32_t	id;

	NETbeginDecode(queue, GAME_DEBUG_REMOVE_FEATURE);
		NETuint32_t(&id);
	NETend();

	if (!getDebugMappingStatus() && bMultiPlayer)
	{
		debug(LOG_WARNING, "Failed to remove feature for player %u.", NetPlay.players[queue.index].position);
		return false;
	}

	pF = IdToFeature(id,ANYPLAYER);
	if (pF == NULL)
	{
		debug(LOG_FEATURE, "feature id %d not found (probably already destroyed)", id);
		return false;
	}

	debug(LOG_FEATURE, "p%d feature id %d destroyed (%s)", pF->player, pF->id, pF->psStats->pName);
	// Remove the feature locally
	turnOffMultiMsg(true);
	destroyFeature(pF, gameTime - deltaGameTime + 1);  // deltaGameTime is actually 0 here, since we're between updates. However, the value of gameTime - deltaGameTime + 1 will not change when we start the next tick.
	turnOffMultiMsg(false);

	return true;
}

BOOL recvAlliance(BOOL allowAudio)
{
	uint8_t to, from, state;
	int32_t value;

	NETbeginDecode(NET_ALLIANCE);
		NETuint8_t(&from);
		NETuint8_t(&to);
		NETuint8_t(&state);
		NETint32_t(&value);
	NETend();

	switch (state)
	{
		case ALLIANCE_NULL:
			break;
		case ALLIANCE_REQUESTED:
			requestAlliance(from, to, false, allowAudio);
			break;
		case ALLIANCE_FORMED:
			formAlliance(from, to, false, allowAudio, true);
			break;
		case ALLIANCE_BROKEN:
			breakAlliance(from, to, false, allowAudio);
			break;
		default:
			debug(LOG_ERROR, "Unknown alliance state recvd.");
			return false;
			break;
	}

	return true;
}

void recvPlayerGameTime(NETQUEUE queue)
{
	uint32_t latencyTicks = 0;
	uint32_t checkTime = 0;
	uint32_t checkCrc = 0;

	NETbeginDecode(queue, GAME_GAME_TIME);
		NETuint32_t(&latencyTicks);
		NETuint32_t(&checkTime);
		NETuint32_tLarge(&checkCrc);
		NETuint16_t(&wantedLatencies[queue.index]);
	NETend();

	gameQueueTime[queue.index] = checkTime + latencyTicks * GAME_TICKS_PER_UPDATE;  // gameTime when future messages shall be processed.

	gameQueueCheckTime[queue.index] = checkTime;
	gameQueueCheckCrc[queue.index] = checkCrc;
	if (!checkDebugSync(checkTime, checkCrc))
	{
		crcError = true;
		if (NetPlay.players[queue.index].allocated)
		{
			NETsetPlayerConnectionStatus(CONNECTIONSTATUS_DESYNC, queue.index);
		}
	}

	if (updateReadyTime == 0 && checkPlayerGameTime(NET_ALL_PLAYERS))
	{
		updateReadyTime = wzGetTicks();  // This is the time we were able to tick.
	}
}

// ////////////////////////////////////////////////////////////////////////////
// Set Player's stats
// send stats to all players when bLocal is false
BOOL setMultiStats(SDWORD player, PLAYERSTATS plStats, BOOL bLocal)
{
	uint32_t playerIndex = (uint32_t)player;

	if (playerIndex >= MAX_PLAYERS)
	{
		return true;
	}

	// First copy over the data into our local array
	memcpy(&playerStats[playerIndex], &plStats, sizeof(plStats));

	if (!bLocal)
	{
		// Now send it to all other players
		NETbeginEncode(NETbroadcastQueue(), NET_PLAYER_STATS);
			// Send the ID of the player's stats we're updating
			NETuint32_t(&playerIndex);

			// Send over the actual stats
			NETuint32_t(&playerStats[playerIndex].played);
			NETuint32_t(&playerStats[playerIndex].wins);
			NETuint32_t(&playerStats[playerIndex].losses);
			NETuint32_t(&playerStats[playerIndex].totalKills);
			NETuint32_t(&playerStats[playerIndex].totalScore);
			NETuint32_t(&playerStats[playerIndex].recentKills);
			NETuint32_t(&playerStats[playerIndex].recentScore);
			NETuint32_t(&playerStats[playerIndex].killsToAdd);
			NETuint32_t(&playerStats[playerIndex].scoreToAdd);
		NETend();
	}

	return true;
}

void recvMultiPlayerFeature(NETQUEUE queue)
{
	FEATURE_TYPE subType = FEAT_TREE;  // Dummy initialisation.
	uint32_t     x, y, id;
	unsigned int i;

	NETbeginDecode(queue, GAME_FEATURES);
	{
		NETenum(&subType);
		NETuint32_t(&x);
		NETuint32_t(&y);
		NETuint32_t(&id);
	}
	NETend();

	// Find the feature stats list that contains the feature type we want to build
	for (i = 0; i < numFeatureStats; ++i)
	{
		// If we found the correct feature type
		if (asFeatureStats[i].subType == subType)
		{
			// Create a feature of the specified type at the given location
			FEATURE *result = buildFeature(&asFeatureStats[i], x, y, false);
			result->id = id;
			break;
		}
	}
}

// recv lassat info on the receiving end.
BOOL recvLasSat(NETQUEUE queue)
{
	BASE_OBJECT	*psObj;
	UBYTE		player,targetplayer;
	STRUCTURE	*psStruct;
	uint32_t	id,targetid;

	// TODO Add some kind of checking, so that things don't get lasatted by bunkers.
	NETbeginDecode(queue, GAME_LASSAT);
		NETuint8_t(&player);
		NETuint32_t(&id);
		NETuint32_t(&targetid);
		NETuint8_t(&targetplayer);
	NETend();

	psStruct = IdToStruct (id, player);
	psObj	 = IdToPointer(targetid, targetplayer);

	if (psStruct && psObj)
	{
		// Give enemy no quarter, unleash the lasat
		proj_SendProjectile(&psStruct->asWeaps[0], NULL, player, psObj->pos, psObj, true, 0);
		psStruct->asWeaps[0].lastFired = gameTime;

		// Play 5 second countdown message
		audio_QueueTrackPos( ID_SOUND_LAS_SAT_COUNTDOWN, psObj->pos.x, psObj->pos.y, psObj->pos.z);
	}

	return true;
}

// ////////////////////////////////////////////////////////////////////////////
// give radar information
void giftRadar(uint8_t from, uint8_t to, bool send)
{
	uint32_t dummy = 0;

	if (send)
	{
		uint8_t subType = RADAR_GIFT;

		NETbeginEncode(NETgameQueue(selectedPlayer), GAME_GIFT);
		NETuint8_t(&subType);
		NETuint8_t(&from);
		NETuint8_t(&to);
		NETuint32_t(&dummy);
		NETend();
	}
	// If we are recieving the gift
	else
	{
		hqReward(from, to);
		if (to == selectedPlayer)
		{
			CONPRINTF(ConsoleString, (ConsoleString, _("%s Gives You A Visibility Report"), getPlayerName(from)));
		}
	}
}

static void giftAutoGame(uint8_t from, uint8_t to, bool send)
{
	uint32_t dummy = 0;

	if (send)
	{
		uint8_t subType = AUTOGAME_GIFT;

		NETbeginEncode(NETgameQueue(selectedPlayer), GAME_GIFT);
		NETuint8_t(&subType);
		NETuint8_t(&from);
		NETuint8_t(&to);
		NETuint32_t(&dummy);
		NETend();
		debug(LOG_SYNC, "We (%d) are telling %d we want to enable/disable a autogame", from, to);
	}
	// If we are recieving the "gift"
	else
	{
		if (to == selectedPlayer)
		{
			NetPlay.players[from].autoGame = !NetPlay.players[from].autoGame ;
			CONPRINTF(ConsoleString, (ConsoleString, "%s has %s the autoGame command", getPlayerName(from), NetPlay.players[from].autoGame ? "Enabled" : "Disabled"));
			debug(LOG_SYNC, "We (%d) are being told that %d has %s autogame", selectedPlayer, from, NetPlay.players[from].autoGame ? "Enabled" : "Disabled");
		}
	}
}

bool recvGift(NETQUEUE queue)
{
	uint8_t	type, from, to;
	int		audioTrack;
	uint32_t droidID;

	NETbeginDecode(queue, GAME_GIFT);
	NETuint8_t(&type);
	NETuint8_t(&from);
	NETuint8_t(&to);
	NETuint32_t(&droidID);
	NETend();

	if (!canGiveOrdersFor(queue.index, from))
	{
		debug(LOG_WARNING, "Gift (%d) from %d, to %d, queue.index %d", (int)type, (int)from, (int)to, (int)queue.index);
		syncDebug("Wrong player.");
		return false;
	}

	// Handle the gift depending on what it is
	switch (type)
	{
	case RADAR_GIFT:
		audioTrack = ID_SENSOR_DOWNLOAD;
		giftRadar(from, to, false);
		break;
	case DROID_GIFT:
		audioTrack = ID_UNITS_TRANSFER;
		recvGiftDroids(from, to, droidID);
		break;
	case STRUCTURE_GIFT:
		audioTrack = ID_GIFT;
		recvGiftStruct(from, to, droidID);
		break;
	case RESEARCH_GIFT:
		audioTrack = ID_TECHNOLOGY_TRANSFER;
		giftResearch(from, to, false);
		break;
	case POWER_GIFT:
		audioTrack = ID_POWER_TRANSMIT;
		giftPower(from, to, droidID, false);
		break;
	case AUTOGAME_GIFT:
		audioTrack = ID_SOUND_NEXUS_SYNAPTIC_LINK;
		giftAutoGame(from, to, false);
		break;
	default:
		debug(LOG_ERROR, "recvGift: Unknown Gift recvd");
		return false;
		break;
	}

	// If we are on the receiving end play an audio alert.
	if (bMultiPlayer && to == selectedPlayer)
	{
		audio_QueueTrack(audioTrack);
	}
	return true;
}

// recv lassat info on the receiving end.
BOOL recvLasSat()
{
    BASE_OBJECT	*psObj;
    UBYTE		player,targetplayer;
    STRUCTURE	*psStruct;
    uint32_t	id,targetid;

    NETbeginDecode(NET_LASSAT);
    NETuint8_t(&player);
    NETuint32_t(&id);
    NETuint32_t(&targetid);
    NETuint8_t(&targetplayer);
    NETend();

    psStruct = IdToStruct (id, player);
    psObj	 = IdToPointer(targetid, targetplayer);

    if (psStruct && psObj)
    {
        // Give enemy no quarter, unleash the lasat
        proj_SendProjectile(&psStruct->asWeaps[0], NULL, player, psObj->pos, psObj, true, 0);

        // Play 5 second countdown message
        audio_QueueTrackPos( ID_SOUND_LAS_SAT_COUNTDOWN, psObj->pos.x, psObj->pos.y, psObj->pos.z);
    }

    return true;
}