Subversion Repositories Games.Descent

/*

 * Portions of this file are copyright Rebirth contributors and licensed as

 * described in COPYING.txt.

 * Portions of this file are copyright Parallax Software and licensed

 * according to the Parallax license below.

 * See COPYING.txt for license details.

THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX

SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO

END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A

ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS

IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS

SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE

FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE

CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS

AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.

COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.

*/

/*

 *

 * Defines and exported variables for multi.c

 *

 */

#pragma once

#include <type_traits>

#include "dxxsconf.h"

#include "fwd-partial_range.h"

#include "fwd-player.h"

#include "player-callsign.h"

#include "player-flags.h"

#include "weapon.h"

#include "mission.h"

#include "newmenu.h"

#include "powerup.h"

#include "fwd-object.h"

#include "fwd-wall.h"

#include "window.h"

#include "game.h"

#include "gameplayopt.h"

#ifdef _WIN32

#include <winsock2.h>

#include <ws2tcpip.h>

#include <io.h>

#else

#include <sys/socket.h>

#include <netinet/in.h>

#include <netdb.h>

#include <arpa/inet.h>

#include <unistd.h>

#include <stdint.h>

#include <sys/time.h>

#endif

#ifdef __cplusplus

#include <stdexcept>

#include "digi.h"

#include "pack.h"

#include "ntstring.h"

#include "compiler-static_assert.h"

#include <array>

namespace dcx {

struct _sockaddr

{

        union {

                sockaddr sa;

                sockaddr_in sin;

#if DXX_USE_IPv6

                sockaddr_in6 sin6;

#define DXX_IPv6(v4,v6) v6

#else

#define DXX_IPv6(v4,v6) v4

#endif

        };

        enum {

                presentation_buffer_size = DXX_IPv6(INET_ADDRSTRLEN, INET6_ADDRSTRLEN),

        };

        static int address_family()

        {

                return DXX_IPv6(AF_INET, AF_INET6);

        }

        static int protocol_family()

        {

                return DXX_IPv6(PF_INET, PF_INET6);

        }

#undef DXX_IPv6

};

// PROTOCOL VARIABLES AND DEFINES

extern int multi_protocol; // set and determinate used protocol

}

#define MULTI_PROTO_UDP 1 // UDP protocol

// What version of the multiplayer protocol is this? Increment each time something drastic changes in Multiplayer without the version number changes. Reset to 0 each time the version of the game changes

#define MULTI_PROTO_VERSION     static_cast<uint16_t>(11)

// PROTOCOL VARIABLES AND DEFINES - END

// limits for Packets (i.e. positional updates) per sec

#define DEFAULT_PPS 30

#define MIN_PPS 5

#define MAX_PPS 40

#define MAX_MESSAGE_LEN 35

#if defined(DXX_BUILD_DESCENT_I)

#define MAX_NET_CREATE_OBJECTS 20

#define MAX_MULTI_MESSAGE_LEN  90 //didn't change it, just moved it up

#elif defined(DXX_BUILD_DESCENT_II)

#define MAX_NET_CREATE_OBJECTS  40

#define MAX_MULTI_MESSAGE_LEN   120

#endif

#define NETGAME_ANARCHY         0

#define NETGAME_TEAM_ANARCHY    1

#define NETGAME_ROBOT_ANARCHY   2

#define NETGAME_COOPERATIVE     3

#if defined(DXX_BUILD_DESCENT_II)

#define NETGAME_CAPTURE_FLAG    4

#define NETGAME_HOARD           5

#define NETGAME_TEAM_HOARD      6

#endif

#define NETGAME_BOUNTY          7

#define NETSTAT_MENU                0

#define NETSTAT_PLAYING             1

#define NETSTAT_BROWSING            2

#define NETSTAT_WAITING             3

#define NETSTAT_STARTING            4

#define NETSTAT_ENDLEVEL            5

#define CONNECT_DISCONNECTED        0

#define CONNECT_PLAYING             1

#define CONNECT_WAITING             2

#define CONNECT_DIED_IN_MINE        3

#define CONNECT_FOUND_SECRET        4

#define CONNECT_ESCAPE_TUNNEL       5

#define CONNECT_END_MENU            6

#if defined(DXX_BUILD_DESCENT_II)

#define CONNECT_KMATRIX_WAITING     7 // Like CONNECT_WAITING but used especially in kmatrix.c to seperate "escaped" and "waiting"

#endif

// reasons for a packet with type PID_DUMP

#define DUMP_CLOSED     0 // no new players allowed after game started

#define DUMP_FULL       1 // player cound maxed out

#define DUMP_ENDLEVEL   2

#define DUMP_DORK       3

#define DUMP_ABORTED    4

#define DUMP_CONNECTED  5 // never used

#define DUMP_LEVEL      6

#define DUMP_KICKED     7

#define DUMP_PKTTIMEOUT 8

#if defined(DXX_BUILD_DESCENT_I) || defined(DXX_BUILD_DESCENT_II)

#define NETFLAG_LABEL_QUAD       "Quad Lasers"

#define NETFLAG_LABEL_VULCAN     "Vulcan cannon"

#define NETFLAG_LABEL_SPREAD     "Spreadfire cannon"

#define NETFLAG_LABEL_PLASMA     "Plasma cannon"

#define NETFLAG_LABEL_FUSION     "Fusion cannon"

#define for_each_netflag_value(VALUE)   \

        VALUE(NETFLAG_DOLASER, "Laser upgrade") \

        VALUE(NETFLAG_DOQUAD, NETFLAG_LABEL_QUAD)       \

        VALUE(NETFLAG_DOVULCAN, NETFLAG_LABEL_VULCAN)   \

        VALUE(NETFLAG_DOSPREAD, NETFLAG_LABEL_SPREAD)   \

        VALUE(NETFLAG_DOPLASMA, NETFLAG_LABEL_PLASMA)   \

        VALUE(NETFLAG_DOFUSION, NETFLAG_LABEL_FUSION)   \

        VALUE(NETFLAG_DOHOMING, "Homing Missiles")      \

        VALUE(NETFLAG_DOPROXIM, "Proximity Bombs")      \

        VALUE(NETFLAG_DOSMART, "Smart Missiles")        \

        VALUE(NETFLAG_DOMEGA, "Mega Missiles")  \

        VALUE(NETFLAG_DOCLOAK, "Cloaking")      \

        VALUE(NETFLAG_DOINVUL, "Invulnerability")       \

        D2X_MP_NETFLAGS(VALUE)  \

#define for_each_netgrant_value(VALUE)  \

        VALUE(NETGRANT_QUAD, NETFLAG_LABEL_QUAD)        \

        VALUE(NETGRANT_VULCAN, NETFLAG_LABEL_VULCAN)    \

        VALUE(NETGRANT_SPREAD, NETFLAG_LABEL_SPREAD)    \

        VALUE(NETGRANT_PLASMA, NETFLAG_LABEL_PLASMA)    \

        VALUE(NETGRANT_FUSION, NETFLAG_LABEL_FUSION)    \

        D2X_MP_NETGRANT(VALUE)

#define MULTI_GAME_TYPE_COUNT   8

namespace dsx {

#if defined(DXX_BUILD_DESCENT_I)

constexpr std::integral_constant<unsigned, 13> MULTI_GAME_NAME_LENGTH{};

constexpr std::integral_constant<unsigned, 18> MULTI_ALLOW_POWERUP_TEXT_LENGTH{};

#define MULTI_ALLOW_POWERUP_MAX 12

#define D2X_MP_NETFLAGS(VALUE)

#define DXX_GRANT_LASER_LEVEL_BITS      2

#define D2X_MP_NETGRANT(VALUE)

#elif defined(DXX_BUILD_DESCENT_II)

constexpr std::integral_constant<unsigned, 17> MULTI_GAME_NAME_LENGTH{};

constexpr std::integral_constant<unsigned, 21> MULTI_ALLOW_POWERUP_TEXT_LENGTH{};

#define MULTI_ALLOW_POWERUP_MAX 26

#define NETFLAG_LABEL_GAUSS     "Gauss cannon"

#define NETFLAG_LABEL_HELIX     "Helix cannon"

#define NETFLAG_LABEL_PHOENIX   "Phoenix cannon"

#define NETFLAG_LABEL_OMEGA     "Omega cannon"

#define NETFLAG_LABEL_AFTERBURNER       "Afterburners"

#define NETFLAG_LABEL_AMMORACK  "Ammo rack"

#define NETFLAG_LABEL_CONVERTER "Energy Converter"

#define NETFLAG_LABEL_HEADLIGHT "Headlight"

#define D2X_MP_NETFLAGS(VALUE)  \

        VALUE(NETFLAG_DOSUPERLASER, "Super lasers")     \

        VALUE(NETFLAG_DOGAUSS, NETFLAG_LABEL_GAUSS)     \

        VALUE(NETFLAG_DOHELIX, NETFLAG_LABEL_HELIX)     \

        VALUE(NETFLAG_DOPHOENIX, NETFLAG_LABEL_PHOENIX) \

        VALUE(NETFLAG_DOOMEGA, NETFLAG_LABEL_OMEGA)     \

        VALUE(NETFLAG_DOFLASH, "Flash Missiles")        \

        VALUE(NETFLAG_DOGUIDED, "Guided Missiles")      \

        VALUE(NETFLAG_DOSMARTMINE, "Smart Mines")       \

        VALUE(NETFLAG_DOMERCURY, "Mercury Missiles")    \

        VALUE(NETFLAG_DOSHAKER, "Earthshaker Missiles") \

        VALUE(NETFLAG_DOAFTERBURNER, NETFLAG_LABEL_AFTERBURNER) \

        VALUE(NETFLAG_DOAMMORACK, NETFLAG_LABEL_AMMORACK)       \

        VALUE(NETFLAG_DOCONVERTER, NETFLAG_LABEL_CONVERTER)     \

        VALUE(NETFLAG_DOHEADLIGHT, NETFLAG_LABEL_HEADLIGHT)

#define DXX_GRANT_LASER_LEVEL_BITS      3

#define D2X_MP_NETGRANT(VALUE)  \

        VALUE(NETGRANT_GAUSS, NETFLAG_LABEL_GAUSS)      \

        VALUE(NETGRANT_HELIX, NETFLAG_LABEL_HELIX)      \

        VALUE(NETGRANT_PHOENIX, NETFLAG_LABEL_PHOENIX)  \

        VALUE(NETGRANT_OMEGA, NETFLAG_LABEL_OMEGA)      \

        VALUE(NETGRANT_AFTERBURNER, NETFLAG_LABEL_AFTERBURNER)  \

        VALUE(NETGRANT_AMMORACK, NETFLAG_LABEL_AMMORACK)        \

        VALUE(NETGRANT_CONVERTER, NETFLAG_LABEL_CONVERTER)      \

        VALUE(NETGRANT_HEADLIGHT, NETFLAG_LABEL_HEADLIGHT)

#endif

}

#define define_netflag_bit_enum(NAME,STR)       BIT_##NAME,

#define define_netflag_bit_mask(NAME,STR)       static constexpr auto NAME = std::integral_constant<unsigned, (1 << BIT_##NAME)>{};

#define define_netflag_powerup_mask(NAME,STR)   | (NAME)

enum { for_each_netflag_value(define_netflag_bit_enum) };

// Bitmask for netgame_info->AllowedItems to set allowed items in Netgame

for_each_netflag_value(define_netflag_bit_mask);

enum { NETFLAG_DOPOWERUP = 0 for_each_netflag_value(define_netflag_powerup_mask) };

enum {

        BIT_NETGRANT_LASER = DXX_GRANT_LASER_LEVEL_BITS - 1,

        for_each_netgrant_value(define_netflag_bit_enum)

        BIT_NETGRANT_MAXIMUM

};

for_each_netgrant_value(define_netflag_bit_mask);

#undef define_netflag_bit_enum

#undef define_netflag_bit_mask

#undef define_netflag_powerup_mask

namespace dsx {

struct packed_spawn_granted_items

{

#if defined(DXX_BUILD_DESCENT_I)

        typedef uint8_t mask_type;

#elif defined(DXX_BUILD_DESCENT_II)

        typedef uint16_t mask_type;

#endif

        mask_type mask;

        static_assert(BIT_NETGRANT_MAXIMUM <= sizeof(mask) << 3, "mask too small");

        packed_spawn_granted_items() = default;

        constexpr packed_spawn_granted_items(mask_type m) :

                mask(m)

        {

        }

        template <unsigned U>

                constexpr packed_spawn_granted_items(std::integral_constant<unsigned, U>) :

                        mask(U)

        {

                assert_equal(U, static_cast<mask_type>(U), "truncation error");

        }

        explicit operator bool() const { return mask; }

        bool has_quad_laser() const { return mask & NETGRANT_QUAD; }

#if defined(DXX_BUILD_DESCENT_II)

        bool has_afterburner() const { return mask & NETGRANT_AFTERBURNER; }

#endif

};

class packed_netduplicate_items

{

public:

        enum

        {

                primary_shift = 0,

                primary_width = 3,

                secondary_shift = primary_shift + primary_width,

                secondary_width = 3,

#if defined(DXX_BUILD_DESCENT_II)

                accessory_shift = secondary_shift + secondary_width,

                accessory_width = 3,

#endif

        };

private:

#if defined(DXX_BUILD_DESCENT_I)

        typedef uint8_t count_type;

#elif defined(DXX_BUILD_DESCENT_II)

        typedef uint16_t count_type;

#endif

        count_type count;

        template <uint_fast32_t shift, uint_fast32_t width>

        uint_fast32_t get_sub_field() const

        {

                static_assert(shift + width <= sizeof(count) << 3, "shift+width too big");

                constexpr auto low_mask = (1 << width) - 1;

                return (count >> shift) & low_mask;

        }

public:

        template <uint_fast32_t shift, uint_fast32_t width>

        void set_sub_field(uint_fast32_t value)

        {

                constexpr auto low_mask = (1 << width) - 1;

                constexpr auto shifted_mask = low_mask << shift;

                count = (count & ~shifted_mask) | (value << shift);

        }

#define DEFINE_ACCESSOR(N)      \

        uint_fast32_t get_##N##_count() const   \

        {       \

                return get_sub_field<N##_shift, N##_width>();   \

        }       \

        void set_##N##_count(uint_fast32_t value)       \

        {       \

                set_sub_field<N##_shift, N##_width>(value);     \

        }

        DEFINE_ACCESSOR(primary);

        DEFINE_ACCESSOR(secondary);

#if defined(DXX_BUILD_DESCENT_II)

        DEFINE_ACCESSOR(accessory);

#endif

        count_type get_packed_field() const

        {

                return count;

        }

        void set_packed_field(count_type c)

        {

                count = c;

        }

};

static inline laser_level_t map_granted_flags_to_laser_level(const packed_spawn_granted_items &grant)

{

        /* Laser level in lowest bits */

        return laser_level_t(grant.mask & ((1 << DXX_GRANT_LASER_LEVEL_BITS) - 1));

}

player_flags map_granted_flags_to_player_flags(packed_spawn_granted_items grant);

uint_fast32_t map_granted_flags_to_primary_weapon_flags(packed_spawn_granted_items grant);

uint16_t map_granted_flags_to_vulcan_ammo(packed_spawn_granted_items grant);

void multi_digi_link_sound_to_pos(int soundnum, vcsegptridx_t segnum, unsigned sidenum, const vms_vector &pos, int forever, fix max_volume);

void multi_object_to_object_rw(object &obj, object_rw *obj_rw);

void multi_object_rw_to_object(object_rw *obj_rw, object &obj);

using GMNames_array = std::array<char[MULTI_GAME_NAME_LENGTH], MULTI_GAME_TYPE_COUNT>;

extern const GMNames_array GMNames;

using multi_allow_powerup_text_array = std::array<char[MULTI_ALLOW_POWERUP_TEXT_LENGTH], MULTI_ALLOW_POWERUP_MAX>;

extern const multi_allow_powerup_text_array multi_allow_powerup_text;

extern const std::array<char[8], MULTI_GAME_TYPE_COUNT> GMNamesShrt;

}

namespace dcx {

extern std::array<objnum_t, MAX_NET_CREATE_OBJECTS> Net_create_objnums;

extern unsigned Net_create_loc;

}

namespace dsx {

void multi_send_fire(int laser_gun, int laser_level, int laser_flags, int laser_fired, objnum_t laser_track, imobjptridx_t is_bomb_objnum);

void multi_send_destroy_controlcen(objnum_t objnum, playernum_t player);

void multi_send_position(object &objnum);

void multi_send_kill(vmobjptridx_t objnum);

void multi_send_remobj(vmobjidx_t objnum);

void multi_send_door_open(vcsegidx_t segnum, unsigned side, uint8_t flag);

void multi_send_drop_weapon(vmobjptridx_t objnum,int seed);

void multi_reset_player_object(object &objp);

int multi_maybe_disable_friendly_fire(const object *killer);

}

#endif

enum msgsend_state_t {

        msgsend_none,

        msgsend_typing,

        msgsend_automap,

};

enum deres_type_t {

        deres_explode,

        deres_drop,

};

// Exported functions

struct owned_remote_objnum

{

        int8_t owner;

        uint16_t objnum;

};

extern int GetMyNetRanking();

extern void ClipRank (ubyte *rank);

objnum_t objnum_remote_to_local(uint16_t remote_obj, int8_t owner);

uint16_t objnum_local_to_remote(objnum_t local_obj, int8_t *owner);

owned_remote_objnum objnum_local_to_remote(objnum_t local);

void map_objnum_local_to_remote(int local, int remote, int owner);

void map_objnum_local_to_local(objnum_t objnum);

void reset_network_objects();

int multi_objnum_is_past(objnum_t objnum);

void multi_do_ping_frame();

void multi_init_objects(void);

void multi_do_protocol_frame(int force, int listen);

window_event_result multi_do_frame();

#ifdef dsx

namespace dsx {

enum class multi_endlevel_type : bool

{

        normal,

#if defined(DXX_BUILD_DESCENT_I)

        secret,

#endif

};

#if defined(DXX_BUILD_DESCENT_I)

void multi_send_endlevel_start(multi_endlevel_type);

#elif defined(DXX_BUILD_DESCENT_II)

void multi_send_endlevel_start();

static inline void multi_send_endlevel_start(multi_endlevel_type)

{

        multi_send_endlevel_start();

}

#endif

void multi_send_player_deres(deres_type_t type);

void multi_send_create_powerup(powerup_type_t powerup_type, vcsegidx_t segnum, vcobjidx_t objnum, const vms_vector &pos);

}

void multi_send_play_sound(int sound_num, fix volume, sound_stack once);

#endif

void multi_send_reappear();

void multi_send_create_explosion(playernum_t);

void multi_send_controlcen_fire(const vms_vector &to_target, int gun_num, objnum_t objnum);

namespace dcx {

void multi_send_cloak(void);

void multi_send_decloak(void);

}

void multi_digi_play_sample(int sndnum, fix max_volume);

void multi_digi_play_sample_once(int soundnum, fix max_volume);

void multi_send_score(void);

void multi_send_trigger(int trigger);

#if defined(DXX_BUILD_DESCENT_II)

namespace dsx {

extern char Multi_is_guided;

void multi_send_flags(playernum_t);

struct marker_message_text_t;

void multi_send_drop_marker(unsigned player, const vms_vector &position, player_marker_index messagenum, const marker_message_text_t &text);

void multi_send_markers();

void multi_send_guided_info (const object_base &miss, char);

void multi_send_orb_bonus(playernum_t pnum, uint8_t);

void multi_send_got_orb(playernum_t pnum);

void multi_send_effect_blowup(vcsegidx_t segnum, unsigned side, const vms_vector &pnt);

void multi_send_vulcan_weapon_ammo_adjust(const vmobjptridx_t objnum);

}

#ifndef RELEASE

void multi_add_lifetime_kills(int count);

#endif

#endif

void multi_send_bounty( void );

void multi_consistency_error(int reset);

window_event_result multi_level_sync();

int multi_endlevel(int *secret);

using multi_endlevel_poll = int(newmenu *menu,const d_event &event, const unused_newmenu_userdata_t *);

multi_endlevel_poll *get_multi_endlevel_poll2();

void multi_send_endlevel_packet();

#ifdef dsx

namespace dsx {

void multi_send_hostage_door_status(vcwallptridx_t wallnum);

void multi_prep_level_objects(const d_vclip_array &Vclip);

void multi_prep_level_player();

void multi_leave_game(void);

}

#endif

void multi_process_bigdata(playernum_t pnum, const ubyte *buf, uint_fast32_t len);

void multi_do_death(int objnum);

#ifdef dsx

namespace dsx {

void multi_make_ghost_player(playernum_t);

void multi_make_player_ghost(playernum_t);

}

#endif

void multi_define_macro(int key);

void multi_send_macro(int key);

int multi_get_kill_list(playernum_array_t &sorted_kills);

void multi_new_game(void);

#ifdef dsx

namespace dsx {

void multi_sort_kill_list(void);

}

#endif

void multi_reset_stuff(void);

int get_team(playernum_t pnum);

void multi_disconnect_player(playernum_t);

#ifdef dsx

namespace dsx {

void multi_initiate_save_game();

void multi_initiate_restore_game();

void multi_execute_save_game(d_game_unique_state::save_slot slot, const d_game_unique_state::savegame_description &desc, partial_range_t<const player *> player_range);

#if defined(DXX_BUILD_DESCENT_I)

static inline void multi_send_got_flag (playernum_t) {}

#elif defined(DXX_BUILD_DESCENT_II)

void multi_send_got_flag (playernum_t);

#endif

}

#endif

// Exported variables

namespace dcx {

extern int Network_status;

// IMPORTANT: These variables needed for player rejoining done by protocol-specific code

extern int Network_send_objects;

extern int Network_send_object_mode;

extern int Network_send_objnum;

extern int Network_rejoined;

extern int Network_sending_extras;

extern int VerifyPlayerJoined;

extern int Player_joining_extras;

extern int Network_player_added;

extern std::array<std::array<uint16_t, MAX_PLAYERS>, MAX_PLAYERS> kill_matrix;

extern std::array<int16_t, 2> team_kills;

extern ushort my_segments_checksum;

//do we draw the kill list on the HUD?

extern int Show_kill_list;

extern int Show_reticle_name;

extern fix Show_kill_list_timer;

// Used to send network messages

extern ntstring<MAX_MESSAGE_LEN - 1> Network_message;

extern int Network_message_reciever;

// Which player 'owns' each local object for network purposes

extern std::array<sbyte, MAX_OBJECTS> object_owner;

extern int multi_quit_game;

extern std::array<msgsend_state_t, MAX_PLAYERS> multi_sending_message;

extern int multi_defining_message;

}

window_event_result multi_message_input_sub(int key);

extern void multi_send_message_start();

void multi_send_msgsend_state(msgsend_state_t state);

#if defined(DXX_BUILD_DESCENT_II)

namespace dsx {

extern std::array<grs_main_bitmap, 2> Orb_icons;

struct hoard_highest_record

{

        unsigned points;

        unsigned player = UINT_MAX;

};

extern hoard_highest_record hoard_highest_record_stats;

}

#endif

namespace dcx {

extern playernum_t Bounty_target;

extern std::array<std::array<bitmap_index, N_PLAYER_SHIP_TEXTURES>, MAX_PLAYERS> multi_player_textures;

extern const std::array<char[16], 10> RankStrings;

#define GetRankStringWithSpace(I)       (PlayerCfg.NoRankings ? std::pair<const char *, const char *>("", "") : std::pair<const char *, const char *>(RankStrings[I], " "))

// Globals for protocol-bound Refuse-functions

extern char RefuseThisPlayer,WaitForRefuseAnswer,RefuseTeam,RefusePlayerName[12];

extern fix64 RefuseTimeLimit;

#define REFUSE_INTERVAL (F1_0*8)

}

#ifdef dsx

namespace dsx {

struct bit_game_flags {

        unsigned closed : 1;

        unsigned : 1;

        unsigned show_on_map : 1;

        /*

         * These #define are written to .NGP files and to the network.

         * Changing them breaks ABI compatibility.

         * The bit flags need not match in value, and are converted below in

         * pack_game_flags / unpack_game_flags.

         */

#define NETGAME_FLAG_CLOSED             1

#define NETGAME_FLAG_SHOW_MAP           4

#if defined(DXX_BUILD_DESCENT_II)

        unsigned hoard : 1;

        unsigned team_hoard : 1;

        unsigned endlevel : 1;

        unsigned forming : 1;

#define NETGAME_FLAG_HOARD              8

#define NETGAME_FLAG_TEAM_HOARD         16

#define NETGAME_FLAG_REALLY_ENDLEVEL    32

#define NETGAME_FLAG_REALLY_FORMING     64

#endif

} __pack__;

}

namespace dcx {

struct packed_game_flags

{

        unsigned char value;

};

#if DXX_USE_TRACKER

enum TrackerNATHolePunchWarn : uint8_t

{

        Unset,

        UserEnabledHP,

        UserRejectedHP,

};

#endif

}

namespace dsx {

static inline bit_game_flags unpack_game_flags(const packed_game_flags *p)

{

        bit_game_flags flags;

        flags.closed = !!(p->value & NETGAME_FLAG_CLOSED);

        flags.show_on_map = !!(p->value & NETGAME_FLAG_SHOW_MAP);

#if defined(DXX_BUILD_DESCENT_II)

        flags.hoard = !!(p->value & NETGAME_FLAG_HOARD);

        flags.team_hoard = !!(p->value & NETGAME_FLAG_TEAM_HOARD);

        flags.endlevel = !!(p->value & NETGAME_FLAG_REALLY_ENDLEVEL);

        flags.forming = !!(p->value & NETGAME_FLAG_REALLY_FORMING);

#endif

        return flags;

}

static inline packed_game_flags pack_game_flags(const bit_game_flags *flags)

{

        packed_game_flags p;

        p.value =

                (flags->closed ? NETGAME_FLAG_CLOSED : 0) |

                (flags->show_on_map ? NETGAME_FLAG_SHOW_MAP : 0) |

#if defined(DXX_BUILD_DESCENT_II)

                (flags->hoard ? NETGAME_FLAG_HOARD : 0) |

                (flags->team_hoard ? NETGAME_FLAG_TEAM_HOARD : 0) |

                (flags->endlevel ? NETGAME_FLAG_REALLY_ENDLEVEL : 0) |

                (flags->forming ? NETGAME_FLAG_REALLY_FORMING : 0) |

#endif

                0;

        return p;

}

#define NETGAME_NAME_LEN        25

extern struct netgame_info Netgame;

}

#endif

#define multi_i_am_master()     (Player_num == 0)

void change_playernum_to(playernum_t new_pnum);

// Multiplayer powerup capping

void MultiLevelInv_InitializeCount();

void MultiLevelInv_Recount();

#ifdef dsx

namespace dsx {

extern bool MultiLevelInv_AllowSpawn(powerup_type_t powerup_type);

}

#endif

extern void MultiLevelInv_Repopulate(fix frequency);

#ifdef dsx

namespace dsx {

uint_fast32_t multi_powerup_is_allowed(const unsigned id, const unsigned AllowedItems);

uint_fast32_t multi_powerup_is_allowed(const unsigned id, const unsigned AllowedItems, const unsigned SpawnGrantedItems);

void show_netgame_info(const netgame_info &netgame);

extern void multi_send_player_inventory(int priority);

const char *multi_common_deny_save_game(const fvcobjptr &vcobjptr, partial_range_t<const player *> player_range);

const char *multi_interactive_deny_save_game(const fvcobjptr &vcobjptr, partial_range_t<const player *> player_range, const d_level_unique_control_center_state &);

}

#endif

extern void multi_send_kill_goal_counts();

void multi_check_for_killgoal_winner();

#if defined(DXX_BUILD_DESCENT_II)

namespace dsx {

extern void multi_send_stolen_items();

void multi_send_trigger_specific(playernum_t pnum, uint8_t trig);

void multi_send_door_open_specific(playernum_t pnum, vcsegidx_t segnum, unsigned side, uint8_t flag);

void multi_send_wall_status_specific(playernum_t pnum,uint16_t wallnum,ubyte type,ubyte flags,ubyte state);

void multi_send_light_specific (playernum_t pnum, vcsegptridx_t segnum, uint8_t val);

void multi_send_capture_bonus (playernum_t pnum);

int multi_all_players_alive(const fvcobjptr &, partial_range_t<const player *>);

void multi_send_seismic(fix);

void multi_send_drop_blobs(playernum_t);

void multi_send_sound_function (char,char);

void DropFlag();

void multi_send_finish_game ();

void init_hoard_data(d_vclip_array &Vclip);

void multi_apply_goal_textures();

void multi_send_escort_goal(const d_unique_buddy_state &);

void multi_recv_escort_goal(d_unique_buddy_state &, const uint8_t *);

int HoardEquipped();

#if DXX_USE_EDITOR

void save_hoard_data(void);

#endif

}

#endif

//how to encode missiles & flares in weapon packets

#define MISSILE_ADJUST  100

#define FLARE_ADJUST    127

/*

 * The Network Players structure

 * Contains protocol-specific data with designated prefixes and general player-related data.

 * Note that not all of these infos will be sent to other users - some are used and/or set locally, only.

 */

struct netplayer_info : prohibit_void_ptr<netplayer_info>

{

#if DXX_USE_UDP

        union

        {

#if DXX_USE_UDP

                struct

                {

                        struct _sockaddr        addr; // IP address of this peer

                } udp;

#endif

        } protocol;    

#endif

        callsign_t                                      callsign;

        sbyte                                           connected;

        ubyte                                           rank;

        fix                                                     ping;

        fix64                                                   LastPacketTime;

};

#ifdef dsx

#if defined(DXX_BUILD_DESCENT_II)

struct ThiefModifier

{

        enum Flags : uint8_t {

                Absent = 1,

                NoEnergyWeapons,

        };

};

#endif

namespace dsx {

/*

 * The Network Game structure

 * Contains protocol-specific data with designated prefixes and general game-related data.

 * Note that not all of these infos will be sent to clients - some are used and/or set locally, only.

 */

struct netgame_info : prohibit_void_ptr<netgame_info>, ignore_window_pointer_t

{

        using play_time_allowed_abi_ratio = std::ratio<5 * 60>;

#if DXX_USE_UDP

        union

        {

#if DXX_USE_UDP

                struct

                {

                        struct _sockaddr                addr; // IP address of this netgame's host

                        std::array<short, 4>                    program_iver; // IVER of program for version checking

                        sbyte                           valid; // Status of Netgame info: -1 = Failed, Wrong version; 0 = No info, yet; 1 = Success

                        uint8_t                         your_index; // Tell player his designated (re)join position in players[]

                        fix                             GameID;

                } udp;

#endif

        } protocol;    

#endif

        ntstring<NETGAME_NAME_LEN> game_name;

        ntstring<MISSION_NAME_LEN> mission_title;

        ntstring<8> mission_name;

        int                                             levelnum;

        Difficulty_level_type difficulty;

        ubyte                                           gamemode;

        ubyte                                           RefusePlayers;

        ubyte                                           game_status;

        ubyte                                           numplayers;

        ubyte                                           max_numplayers;

        ubyte                                           numconnected;

        bit_game_flags game_flag;

        ubyte                                           team_vector;

        uint8_t                                         SecludedSpawns;

        uint8_t MouselookFlags;

        uint32_t                                        AllowedItems;

        packed_spawn_granted_items SpawnGrantedItems;

        packed_netduplicate_items DuplicatePowerups;

        unsigned ShufflePowerupSeed;

        d_mp_gameplay_options MPGameplayOptions;

#if defined(DXX_BUILD_DESCENT_II)

        uint8_t Allow_marker_view;

        uint8_t AlwaysLighting;

        uint8_t ThiefModifierFlags;

        uint8_t AllowGuidebot;

#endif

        uint8_t ShowEnemyNames;

        uint8_t BrightPlayers;

        uint8_t InvulAppear;

        ushort                                          segments_checksum;

        int                                             KillGoal;

        /* The UI enforces that this steps in units of 5 minutes, but for

         * efficiency, it is stored as ticks (1 second = F1_0).  The UI

         * imposes a maximum value that is small enough that overflow is

         * impossible.

         */

        d_time_fix PlayTimeAllowed;

        fix                                             level_time;

        int                                             control_invul_time;

        int                                             monitor_vector;

        short                                           PacketsPerSec;

        ubyte                                           PacketLossPrevention;

        ubyte                                           NoFriendlyFire;

        std::array<callsign_t, 2>                                       team_name;

        std::array<uint32_t, MAX_PLAYERS>                                               locations;

        std::array<std::array<uint16_t, MAX_PLAYERS>, MAX_PLAYERS>                                              kills;

        std::array<int16_t, 2>                                          team_kills;

        std::array<uint16_t, MAX_PLAYERS>                                               killed;

        std::array<uint16_t, MAX_PLAYERS>                                               player_kills;

        std::array<uint32_t, MAX_PLAYERS>                                               player_score;

        std::array<player_flags, MAX_PLAYERS>                                   net_player_flags;

        std::array<netplayer_info, MAX_PLAYERS>                                 players;

#if DXX_USE_TRACKER

        ubyte                                           Tracker;

        TrackerNATHolePunchWarn TrackerNATWarned;

#endif

};

/*

 * Structure holding all powerup types we want to keep track of. Used to cap or respawn powerups and keep the level inventory steady.

 * Using uint32_t because we don't count powerup units but what the powerup contains (1 or 4 missiles, vulcam amount, etc) so we can keep track of overhead.

 * I'm sorry if this isn't very optimized but I found this easier to handle than a single variable per powerup.

 */

struct multi_level_inv

{

        std::array<uint32_t, MAX_POWERUP_TYPES> Initial; // initial (level start) count of this powerup type

        std::array<uint32_t, MAX_POWERUP_TYPES> Current; // current count of this powerup type

        std::array<fix, MAX_POWERUP_TYPES> RespawnTimer; // incremented by FrameTime if initial-current > 0 and triggers respawn after 2 seconds. Since we deal with a certain delay from clients, their inventory updates may happen a while after they remove the powerup object and we do not want to respawn it on accident during that time window!

};