path: root/src/game/bg_public.h

// Copyright (C) 1999-2000 Id Software, Inc.
//
// bg_public.h -- definitions shared by both the server game and client game modules

/*
 *  Portions Copyright (C) 2000-2001 Tim Angus
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms of the OSML - Open Source Modification License v1.0 as
 *  described in the file COPYING which is distributed with this source
 *  code.
 *
 *  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.
 */
                  
// because games can change separately from the main system version, we need a
// second version that must match between game and cgame
#define GAME_VERSION            "baseq3-1"

#define DEFAULT_GRAVITY         800
#define GIB_HEALTH              -40
#define ARMOR_PROTECTION        0.66

#define MAX_ITEMS               256

#define RANK_TIED_FLAG          0x4000

#define DEFAULT_SHOTGUN_SPREAD  700
#define DEFAULT_SHOTGUN_COUNT   11

#define ITEM_RADIUS             15    // item sizes are needed for client side pickup detection

#define LIGHTNING_RANGE         768

#define SCORE_NOT_PRESENT       -9999 // for the CS_SCORES[12] when only one player is present

#define VOTE_TIME               30000 // 30 seconds before vote times out

#define MINS_Z                  -24
#define DEFAULT_VIEWHEIGHT      26
#define CROUCH_VIEWHEIGHT       12
#define DEAD_VIEWHEIGHT         -16

#define MAX_POUNCE_SPEED        750
#define POUNCE_TIME             1000.0f

//
// config strings are a general means of communicating variable length strings
// from the server to all connected clients.
//

// CS_SERVERINFO and CS_SYSTEMINFO are defined in q_shared.h
#define CS_MUSIC            2
#define CS_MESSAGE          3   // from the map worldspawn's message field
#define CS_MOTD             4   // g_motd string for server message of the day
#define CS_WARMUP           5   // server time when the match will be restarted
#define CS_SCORES1          6
#define CS_SCORES2          7
#define CS_VOTE_TIME        8
#define CS_VOTE_STRING      9
#define CS_VOTE_YES         10
#define CS_VOTE_NO          11

#define CS_TEAMVOTE_TIME    12
#define CS_TEAMVOTE_STRING  14
#define CS_TEAMVOTE_YES     16
#define CS_TEAMVOTE_NO      18

#define CS_GAME_VERSION     20
#define CS_LEVEL_START_TIME 21    // so the timer only shows the current level
#define CS_INTERMISSION     22    // when 1, fraglimit/timelimit has been hit and intermission will start in a second or two
#define CS_FLAGSTATUS       23    // string indicating flag status in CTF
#define CS_SHADERSTATE      24
#define CS_BOTINFO          25
#define CS_CLIENTS_READY    26    //TA: following suggestion in STAT_ enum STAT_CLIENTS_READY becomes a configstring

#define CS_ITEMS            27    // string of 0's and 1's that tell which items are present

//TA: extra stuff:
#define CS_BUILDPOINTS      28

#define CS_MODELS           33
#define CS_SOUNDS           (CS_MODELS+MAX_MODELS)
#define CS_SHADERS          (CS_SOUNDS+MAX_SOUNDS)
#define CS_PLAYERS          (CS_SHADERS+MAX_SHADERS)
#define CS_PRECACHES        (CS_PLAYERS+MAX_CLIENTS)
#define CS_LOCATIONS        (CS_PRECACHES+MAX_CLIENTS)
/*#define CS_PARTICLES        (CS_LOCATIONS+MAX_LOCATIONS) TA: never used?!*/

#define CS_MAX              (CS_LOCATIONS+MAX_LOCATIONS)

#if (CS_MAX) > MAX_CONFIGSTRINGS
#error overflow: (CS_MAX) > MAX_CONFIGSTRINGS
#endif

typedef enum {
  GT_FFA,       // free for all
  GT_TOURNAMENT,    // one on one tournament
  GT_SINGLE_PLAYER, // single player ffa

  //-- team games go after this --

  GT_TEAM,      // team deathmatch
  GT_CTF,       // capture the flag
  GT_1FCTF,
  GT_OBELISK,
  GT_HARVESTER,

  GT_MAX_GAME_TYPE
} gametype_t;

typedef enum { GENDER_MALE, GENDER_FEMALE, GENDER_NEUTER } gender_t;

/*
===================================================================================

PMOVE MODULE

The pmove code takes a player_state_t and a usercmd_t and generates a new player_state_t
and some other output data.  Used for local prediction on the client game and true
movement on the server game.
===================================================================================
*/

typedef enum {
  PM_NORMAL,        // can accelerate and turn
  PM_NOCLIP,        // noclip movement
  PM_SPECTATOR,     // still run into walls
  PM_GRABBED,       // like dead, but for when the player is still live
  PM_DEAD,          // no acceleration or turning, but free falling
  PM_FREEZE,        // stuck in place with no control
  PM_INTERMISSION,  // no movement or status bar
  PM_SPINTERMISSION // no movement or status bar
} pmtype_t;

typedef enum {
  WEAPON_READY,
  WEAPON_RAISING,
  WEAPON_DROPPING,
  WEAPON_FIRING,
  WEAPON_RELOADING
} weaponstate_t;

// pmove->pm_flags
#define PMF_DUCKED          1
#define PMF_JUMP_HELD       2
#define PMF_CROUCH_HELD     4
#define PMF_BACKWARDS_JUMP  8   // go into backwards land
#define PMF_BACKWARDS_RUN   16    // coast down to backwards run
#define PMF_TIME_LAND       32    // pm_time is time before rejump
#define PMF_TIME_KNOCKBACK  64    // pm_time is an air-accelerate only time
#define PMF_TIME_WATERJUMP  256   // pm_time is waterjump
#define PMF_RESPAWNED       512   // clear after attack and jump buttons come up
#define PMF_USE_ITEM_HELD   1024
#define PMF_GRAPPLE_PULL    2048  // pull towards grapple location
#define PMF_FOLLOW          4096  // spectate following another player
#define PMF_SCOREBOARD      8192  // spectate as a scoreboard
#define PMF_INVULEXPAND     16384 // invulnerability sphere set to full size
#define PMF_POUNCE          32768 //TA: keep track of pouncing


#define PMF_ALL_TIMES (PMF_TIME_WATERJUMP|PMF_TIME_LAND|PMF_TIME_KNOCKBACK)

#define MAXTOUCH  32
typedef struct {
  // state (in / out)
  playerState_t *ps;

  // command (in)
  usercmd_t cmd;
  int     tracemask;      // collide against these types of surfaces
  int     debugLevel;     // if set, diagnostic output will be printed
  qboolean  noFootsteps;    // if the game is setup for no footsteps by the server
  qboolean  autoWeaponHit[ 32 ]; //FIXME: TA: remind myself later this might be a problem

  int       framecount;
  
  // results (out)
  int     numtouch;
  int     touchents[MAXTOUCH];

  vec3_t    mins, maxs;     // bounding box size

  int     watertype;
  int     waterlevel;

  float   xyspeed;
  
  // for fixed msec Pmove
  int     pmove_fixed;
  int     pmove_msec;
      
  // callbacks to test the world
  // these will be different functions during game and cgame
  /*void    (*trace)( trace_t *results, const vec3_t start, vec3_t mins, vec3_t maxs, const vec3_t end, int passEntityNum, int contentMask );*/
  void    (*trace)( trace_t *results, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int passEntityNum, int contentMask );
  
  
  int     (*pointcontents)( const vec3_t point, int passEntityNum );
} pmove_t;

// if a full pmove isn't done on the client, you can just update the angles
void PM_UpdateViewAngles( playerState_t *ps, const usercmd_t *cmd );
void Pmove (pmove_t *pmove);

//===================================================================================


// player_state->stats[] indexes
typedef enum {
  STAT_HEALTH,
  STAT_ITEMS,
  STAT_SLOTS,           //TA: tracks the amount of stuff human players are carrying
  STAT_ACTIVEITEMS,
  STAT_WEAPONS,         // 16 bit fields
  STAT_WEAPONS2,        //TA: another 16 bits to push the max weapon count up
  STAT_ARMOR,
  STAT_MAX_HEALTH, // health / armor limit, changable by handicap
  STAT_PCLASS,    //TA: player class (for aliens AND humans)
  STAT_PTEAM,     //TA: player team
  STAT_STAMINA,   //TA: stamina (human only)
  STAT_STATE,     //TA: client states e.g. wall climbing
  STAT_CREDIT,    //TA: human credit
  STAT_MISC,      //TA: for uh...misc stuff
  STAT_BUILDABLE  //TA: which ghost model to display for building
} statIndex_t;

#define SCA_WALLCLIMBER         1
#define SCA_TAKESFALLDAMAGE     2
#define SCA_CANZOOM             4
#define SCA_CANJUMP             8
#define SCA_NOWEAPONDRIFT       16
#define SCA_FOVWARPS            32

#define SS_WALLCLIMBING         1
#define SS_WALLCLIMBINGCEILING  2
#define SS_CREEPSLOWED          8
#define SS_SPEEDBOOST           16
#define SS_INFESTING            32
#define SS_GRABBED              64
#define SS_BLOBLOCKED           128
#define SS_POISONED             256

#define SB_VALID_TOGGLEBIT      16384

// player_state->persistant[] indexes
// these fields are the only part of player_state that isn't
// cleared on respawn
typedef enum {
  PERS_SCORE,           // !!! MUST NOT CHANGE, SERVER AND GAME BOTH REFERENCE !!!
  PERS_HITS,            // total points damage inflicted so damage beeps can sound on change
  PERS_RANK,
  PERS_TEAM,
  PERS_SPAWN_COUNT,       // incremented every respawn
  PERS_PLAYEREVENTS,        // 16 bits that can be flipped for events
  PERS_REWARD,          // a reward_t
  PERS_ATTACKER,          // clientnum of last damage inflicter
  PERS_KILLED,          // count of the number of times you died
  // these were added for single player awards tracking
  PERS_IMPRESSIVE_COUNT,
  PERS_EXCELLENT_COUNT,
  PERS_GAUNTLET_FRAG_COUNT,
  PERS_ACCURACY_SHOTS,
  PERS_ACCURACY_HITS,
  //TA: FIXME: /\ get rid of award counts to make some room
  
  //TA: extra gubbins
  PERS_POINTS,
  PERS_TOTALPOINTS
} persEnum_t;


// entityState_t->eFlags
#define EF_DEAD             0x00000001    // don't draw a foe marker over players with EF_DEAD
#define EF_TELEPORT_BIT     0x00000002    // toggled every time the origin abruptly changes
#define EF_AWARD_EXCELLENT  0x00000004    // draw an excellent sprite
#define EF_PLAYER_EVENT     0x00000008
#define EF_BOUNCE           0x00000010    // for missiles
#define EF_BOUNCE_HALF      0x00000020    // for missiles
#define EF_AWARD_GAUNTLET   0x00000040    // draw a gauntlet sprite
#define EF_NODRAW           0x00000080    // may have an event, but no model (unspawned items)
#define EF_FIRING           0x00000100    // for lightning gun
#define EF_FIRING2          0x00000200    // alt fire
#define EF_MOVER_STOP       0x00000400    // will push otherwise
#define EF_TALK             0x00000800    // draw a talk balloon
#define EF_CONNECTION       0x00001000    // draw a connection trouble sprite
#define EF_VOTED            0x00002000    // already cast a vote
#define EF_TEAMVOTED        0x00004000    // already cast a vote
#define EF_AWARD_IMPRESSIVE 0x00008000    // draw an impressive sprite
#define EF_OVERDRAW_OFF     0x00010000    // TA: disable overdraw protection on sprites
#define EF_REAL_LIGHT       0x00020000    // TA: light sprites according to ambient light

typedef enum {
  PW_NONE,

  PW_QUAD,
  PW_BATTLESUIT,
  PW_HASTE,
  PW_INVIS,
  PW_REGEN,
  PW_FLIGHT,

  PW_REDFLAG,
  PW_BLUEFLAG,
  PW_BALL,

  PW_NUM_POWERUPS
} powerup_t;

typedef enum {
  HI_NONE,

  HI_TELEPORTER,
  HI_MEDKIT,

  HI_NUM_HOLDABLE
} holdable_t;

//TA: needed client side to size sprites
#define FIREBALL_LIFETIME 1000.0f

typedef enum
{
  WP_NONE,

  WP_GAUNTLET,
  WP_MACHINEGUN,
  WP_CHAINGUN,
  WP_SHOTGUN,
  WP_GRENADE_LAUNCHER,
  WP_ROCKET_LAUNCHER,
  WP_LOCKBLOB_LAUNCHER,
  WP_TESLAGEN,
  WP_RAILGUN,
  WP_FLAMER,
  WP_PLASMAGUN,
  WP_BFG,
  WP_GRAPPLING_HOOK,
  WP_VENOM,
  WP_GRABANDCSAW,
  WP_POUNCE,
  WP_MASS_DRIVER,
  WP_PULSE_RIFLE,

  //build weapons must remain in a block
  WP_DBUILD,
  WP_DBUILD2,
  WP_HBUILD2,
  WP_HBUILD,
  //ok?
  
  WP_GGRENADE,

  WP_NUM_WEAPONS
} weapon_t;

typedef enum
{
  UP_NONE,

  UP_TORCH,
  UP_NVG,
  UP_CHESTARMOUR,
  UP_LIMBARMOUR,
  UP_HELMET,
  UP_ANTITOXIN,
  UP_BATTPACK,
  UP_JETPACK,
  UP_BATTLESUIT,

  UP_NUM_UPGRADES
} upgrade_t;

typedef enum
{
  WUT_NONE,
  
  WUT_ALIENS,
  WUT_HUMANS,

  WUT_NUM_TEAMS
} WUTeam_t;

//TA: bitmasks for upgrade slots
#define SLOT_NONE       0
#define SLOT_HEAD       1
#define SLOT_TORSO      2
#define SLOT_ARMS       4
#define SLOT_LEGS       8
#define SLOT_BACKPACK   16
#define SLOT_WEAPON     32
#define SLOT_SIDEARM    64

typedef enum
{
  BA_NONE,

  BA_A_SPAWN,
  BA_A_HIVEMIND,
  
  BA_A_BARRICADE,
  BA_A_ACIDTUBE,
  BA_A_TRAPPER,
  BA_A_BOOSTER,
  
  BA_H_SPAWN,
  
  BA_H_DEF1,
  BA_H_DEF2,
  BA_H_DEF3,
  
  BA_H_MCU,
  BA_H_DCC,
  BA_H_MEDISTAT,
  BA_H_BANK,
  
  BA_H_REACTOR,
  BA_H_REPEATER,

  BA_H_FLOATMINE,

  BA_NUM_BUILDABLES
} buildable_t;

typedef enum
{
  BIT_NONE,
  
  BIT_ALIENS,
  BIT_HUMANS,

  BIT_NUM_TEAMS
} buildableTeam_t;

// reward sounds (stored in ps->persistant[PERS_PLAYEREVENTS])
#define PLAYEREVENT_DENIEDREWARD    0x0001
#define PLAYEREVENT_GAUNTLETREWARD    0x0002
#define PLAYEREVENT_HOLYSHIT      0x0004

// entityState_t->event values
// entity events are for effects that take place reletive
// to an existing entities origin.  Very network efficient.

// two bits at the top of the entityState->event field
// will be incremented with each change in the event so
// that an identical event started twice in a row can
// be distinguished.  And off the value with ~EV_EVENT_BITS
// to retrieve the actual event number
#define EV_EVENT_BIT1   0x00000100
#define EV_EVENT_BIT2   0x00000200
#define EV_EVENT_BITS   (EV_EVENT_BIT1|EV_EVENT_BIT2)

#define EVENT_VALID_MSEC  300

typedef enum {
  EV_NONE,

  EV_FOOTSTEP,
  EV_FOOTSTEP_METAL,
  EV_FOOTSTEP_SQUELCH,
  EV_FOOTSPLASH,
  EV_FOOTWADE,
  EV_SWIM,

  EV_STEP_4,
  EV_STEP_8,
  EV_STEP_12,
  EV_STEP_16,

  EV_FALL_SHORT,
  EV_FALL_MEDIUM,
  EV_FALL_FAR,

  EV_JUMP_PAD,      // boing sound at origin, jump sound on player

  EV_JUMP,
  EV_WATER_TOUCH, // foot touches
  EV_WATER_LEAVE, // foot leaves
  EV_WATER_UNDER, // head touches
  EV_WATER_CLEAR, // head leaves

  EV_ITEM_PICKUP,     // normal item pickups are predictable
  EV_GLOBAL_ITEM_PICKUP,  // powerup / team sounds are broadcast to everyone

  EV_NOAMMO,
  EV_CHANGE_WEAPON,
  EV_FIRE_WEAPON,
  EV_FIRE_WEAPON2,
  EV_FIRE_WEAPONBOTH,

  EV_USE_ITEM0,
  EV_USE_ITEM1,
  EV_USE_ITEM2,
  EV_USE_ITEM3,
  EV_USE_ITEM4,
  EV_USE_ITEM5,
  EV_USE_ITEM6,
  EV_USE_ITEM7,
  EV_USE_ITEM8,
  EV_USE_ITEM9,
  EV_USE_ITEM10,
  EV_USE_ITEM11,
  EV_USE_ITEM12,
  EV_USE_ITEM13,
  EV_USE_ITEM14,
  EV_USE_ITEM15,

  EV_ITEM_RESPAWN,
  EV_PLAYER_RESPAWN, //TA: for fovwarp effects
  EV_ITEM_POP,
  EV_PLAYER_TELEPORT_IN,
  EV_PLAYER_TELEPORT_OUT,

  EV_GRENADE_BOUNCE,    // eventParm will be the soundindex

  EV_GENERAL_SOUND,
  EV_GLOBAL_SOUND,    // no attenuation

  EV_BULLET_HIT_FLESH,
  EV_BULLET_HIT_WALL,
  EV_MASS_DRIVER_HIT,

  EV_MISSILE_HIT,
  EV_MISSILE_MISS,
  EV_MISSILE_MISS_METAL,
  EV_ITEM_EXPLOSION, //TA: human item explosions
  EV_RAILTRAIL,
  EV_TESLATRAIL,
  EV_SHOTGUN,
  EV_BULLET,        // otherEntity is the shooter

  EV_PAIN,
  EV_DEATH1,
  EV_DEATH2,
  EV_DEATH3,
  EV_OBITUARY,

  EV_POWERUP_QUAD,
  EV_POWERUP_BATTLESUIT,
  EV_POWERUP_REGEN,

  EV_GIB_PLAYER,      // gib a previously living player
  EV_GIB_ALIEN,       //TA: generic green gib for aliens

  EV_BUILD_CONSTRUCT, //TA
  EV_BUILD_DESTROY,   //TA
  EV_BUILD_ANIM,      //TA

  EV_DEBUG_LINE,
  EV_STOPLOOPINGSOUND,
  EV_TAUNT,
  EV_TAUNT_YES,
  EV_TAUNT_NO,
  EV_TAUNT_FOLLOWME,
  EV_TAUNT_GETFLAG,
  EV_TAUNT_GUARDBASE,
  EV_TAUNT_PATROL,

  EV_MENU             //TA: menu event

} entity_event_t;

typedef enum
{
  MN_TEAM,
  MN_D_CLASS,
  MN_D_BUILD,
  MN_D_INFEST,
  MN_D_NOROOM,
  MN_D_NOCREEP,
  MN_D_NOHVMND,
  MN_D_HIVEMIND,
  MN_D_NOASSERT,
  MN_D_SPWNWARN,
  MN_D_NORMAL,
  MN_H_SPAWN,
  MN_H_BUILD,
  MN_H_MCU,
  MN_H_BANK,
  MN_H_NOROOM,
  MN_H_NOPOWER,
  MN_H_REACTOR,
  MN_H_REPEATER,
  MN_H_RPLWARN,
  MN_H_RPTWARN,
  MN_H_NOSLOTS,
  MN_H_NOFUNDS,
  MN_H_ITEMHELD
} dynMenu_t;

// animations
typedef enum {
  BOTH_DEATH1,
  BOTH_DEAD1,
  BOTH_DEATH2,
  BOTH_DEAD2,
  BOTH_DEATH3,
  BOTH_DEAD3,

  TORSO_GESTURE,

  TORSO_ATTACK,
  TORSO_ATTACK2,

  TORSO_DROP,
  TORSO_RAISE,

  TORSO_STAND,
  TORSO_STAND2,

  LEGS_WALKCR,
  LEGS_WALK,
  LEGS_RUN,
  LEGS_BACK,
  LEGS_SWIM,

  LEGS_JUMP,
  LEGS_LAND,

  LEGS_JUMPB,
  LEGS_LANDB,

  LEGS_IDLE,
  LEGS_IDLECR,

  LEGS_TURN,

  TORSO_GETFLAG,
  TORSO_GUARDBASE,
  TORSO_PATROL,
  TORSO_FOLLOWME,
  TORSO_AFFIRMATIVE,
  TORSO_NEGATIVE,

  MAX_PLAYER_ANIMATIONS,

  LEGS_BACKCR,
  LEGS_BACKWALK,
  FLAG_RUN,
  FLAG_STAND,
  FLAG_STAND2RUN,

  MAX_PLAYER_TOTALANIMATIONS
} playerAnimNumber_t;

//TA: for buildable animations
typedef enum
{
  BANIM_NONE,

  BANIM_CONSTRUCT1,
  BANIM_CONSTRUCT2,

  BANIM_IDLE1,
  BANIM_IDLE2,
  BANIM_IDLE3,

  BANIM_ATTACK1,
  BANIM_ATTACK2,

  BANIM_SPAWN1,
  BANIM_SPAWN2,

  BANIM_PAIN1,
  BANIM_PAIN2,
  
  BANIM_DESTROY1,
  BANIM_DESTROY2,
  BANIM_DESTROYED,
  
  MAX_BUILDABLE_ANIMATIONS
} buildableAnimNumber_t;

typedef struct animation_s {
  int   firstFrame;
  int   numFrames;
  int   loopFrames;     // 0 to numFrames
  int   frameLerp;      // msec between frames
  int   initialLerp;    // msec to get to first frame
  int   reversed;     // true if animation is reversed
  int   flipflop;     // true if animation should flipflop back to base
} animation_t;


// flip the togglebit every time an animation
// changes so a restart of the same anim can be detected
#define ANIM_TOGGLEBIT    128
#define ANIM_WALLCLIMBING 64


typedef enum {
  TEAM_FREE,
  TEAM_HUMANS,
  TEAM_ALIENS,
  TEAM_SPECTATOR,

  TEAM_NUM_TEAMS
} team_t;

// Time between location updates
#define TEAM_LOCATION_UPDATE_TIME   1000

// How many players on the overlay
#define TEAM_MAXOVERLAY   32

//FIXME: switch to enums at some point
//TA: player classes
typedef enum {
  PCL_NONE,
  
  //builder classes
  PCL_A_B_BASE,
  PCL_A_B_LEV1,
  
  //offensive classes
  PCL_A_O_BASE,
  PCL_A_O_LEV1,
  PCL_A_O_LEV1_UPG,
  PCL_A_O_LEV2,
  PCL_A_O_LEV2_UPG,
  PCL_A_O_LEV3,
  PCL_A_O_LEV3_UPG,
  PCL_A_O_LEV4,
  
  //human class
  PCL_H_BASE,

  PCL_NUM_CLASSES
} pClass_t;


//TA: player teams
typedef enum {
  PTE_NONE,
  PTE_ALIENS,
  PTE_HUMANS,

  PTE_NUM_TEAMS
} pTeam_t;


// means of death
typedef enum {
  MOD_UNKNOWN,
  MOD_SHOTGUN,
  MOD_GAUNTLET,
  MOD_MACHINEGUN,
  MOD_CHAINGUN,
  MOD_GRENADE,
  MOD_GRENADE_SPLASH,
  MOD_ROCKET,
  MOD_ROCKET_SPLASH,
  MOD_FLAMER,
  MOD_FLAMER_SPLASH,
  MOD_RAILGUN,
  MOD_LIGHTNING,
  MOD_BFG,
  MOD_BFG_SPLASH,
  MOD_WATER,
  MOD_SLIME,
  MOD_LAVA,
  MOD_CRUSH,
  MOD_TELEFRAG,
  MOD_FALLING,
  MOD_SUICIDE,
  MOD_TARGET_LASER,
  MOD_TRIGGER_HURT,
  MOD_GRAPPLE,
  MOD_VENOM,
  MOD_HSPAWN,
  MOD_DSPAWN
} meansOfDeath_t;


//---------------------------------------------------------

// gitem_t->type
typedef enum {
  IT_BAD,
  IT_WEAPON,        // EFX: rotate + upscale + minlight
  IT_BUILDABLE,  //TA: gitem_t->type for buildable items (spawns etc.)
  IT_UPGRADE,    //TA: gitem_t->type for human upgrades
  IT_AMMO,        // EFX: rotate
  IT_ARMOR,       // EFX: rotate + minlight
  IT_HEALTH,        // EFX: static external sphere + rotating internal
  IT_POWERUP,       // instant on, timer based
              // EFX: rotate + external ring that rotates
  IT_HOLDABLE,      // single use, holdable item
              // EFX: rotate + bob
  IT_TEAM
} itemType_t;

#define MAX_ITEM_MODELS 4

typedef struct gitem_s {
  char    *classname; // spawning name
  char    *pickup_sound;
  char    *world_model[MAX_ITEM_MODELS];

  char    *icon;
  char    *pickup_name; // for printing on pickup

  int     quantity;   // for ammo how much, or duration of powerup
  itemType_t  giType;     // IT_* flags

  int     giTag;

  char    *precaches;   // string of all models and images this item will use
  char    *sounds;    // string of all sounds this item will use
} gitem_t;

//TA: player class record
typedef struct
{
  int     classNum;

  char    *className;
  char    *humanName;
  
  char    *modelName;
  char    *skinName;
  
  vec3_t  mins;
  vec3_t  maxs;
  vec3_t  crouchMaxs;
  vec3_t  deadMins;
  vec3_t  deadMaxs;
  
  int     viewheight;
  int     crouchViewheight;
  
  int     health;
  int     armor;
  
  int     abilities;
  
  float   buildDist;
  
  int     fov;
  float   bob;
  int     steptime;
  float   speed;
  float   sticky;

  int     children[ 3 ];
  int     timeToEvolve;
  int     value;
} classAttributes_t;

//TA: buildable item record
typedef struct
{
  int       buildNum;

  char      *buildName;
  char      *humanName;
  char      *entityName;
  
  char      *models[ MAX_ITEM_MODELS ];

  vec3_t    mins;
  vec3_t    maxs;

  trType_t  traj;
  float     bounce;
  
  int       buildPoints;

  int       health;
  
  int       damage;
  int       splashDamage;
  int       splashRadius;

  int       meansOfDeath;

  int       team;
  weapon_t  buildWeapon;

  int       idleAnim;

  int       nextthink;

  int       turretFireSpeed;
  int       turretRange;
  weapon_t  turretProjType;

  float     minNormal;
  qboolean  invertNormal;

  qboolean  creepTest;
  int       creepSize;

  qboolean  reactorTest;
} buildableAttributes_t;      

//TA: weapon record
typedef struct
{
  int       weaponNum;

  int       price;

  int       slots;

  char      *weaponName;
  char      *weaponHumanName;
  
  int       quan;
  int       clips;
  int       maxClips;
  
  qboolean  hasAltMode;
  qboolean  synced;

  WUTeam_t  team;
} weaponAttributes_t;

//TA: upgrade record
typedef struct
{
  int       upgradeNum;

  int       price;

  int       slots;

  char      *upgradeName;
  char      *upgradeHumanName;
  
  WUTeam_t  team;
} upgradeAttributes_t;

// included in both the game dll and the client
extern  gitem_t bg_itemlist[];
extern  int   bg_numItems;

gitem_t *BG_FindItem( const char *pickupName );
gitem_t *BG_FindItemForWeapon( weapon_t weapon );
gitem_t *BG_FindItemForUpgrade( upgrade_t upgrade );
gitem_t *BG_FindItemForPowerup( powerup_t pw );
gitem_t *BG_FindItemForHoldable( holdable_t pw );

//TA:
int           BG_FindBuildNumForName( char *name );
int           BG_FindBuildNumForEntityName( char *name );
char          *BG_FindNameForBuildable( int bclass );
char          *BG_FindHumanNameForBuildable( int bclass );
char          *BG_FindEntityNameForBuildable( int bclass );
char          *BG_FindModelsForBuildable( int bclass, int modelNum );
void          BG_FindBBoxForBuildable( int bclass, vec3_t mins, vec3_t maxs );
int           BG_FindHealthForBuildable( int bclass );
trType_t      BG_FindTrajectoryForBuildable( int bclass );
float         BG_FindBounceForBuildable( int bclass );
int           BG_FindBuildPointsForBuildable( int bclass );
int           BG_FindDamageForBuildable( int bclass );
int           BG_FindSplashDamageForBuildable( int bclass );
int           BG_FindSplashRadiusForBuildable( int bclass );
int           BG_FindMODForBuildable( int bclass );
int           BG_FindTeamForBuildable( int bclass );
weapon_t      BG_FindBuildWeaponForBuildable( int bclass );
int           BG_FindAnimForBuildable( int bclass );
int           BG_FindNextThinkForBuildable( int bclass );
int           BG_FindFireSpeedForBuildable( int bclass );
int           BG_FindRangeForBuildable( int bclass );
weapon_t      BG_FindProjTypeForBuildable( int bclass );
float         BG_FindMinNormalForBuildable( int bclass );
qboolean      BG_FindInvertNormalForBuildable( int bclass );
int           BG_FindCreepTestForBuildable( int bclass );
int           BG_FindCreepSizeForBuildable( int bclass );
int           BG_FindUniqueTestForBuildable( int bclass );

int       BG_FindClassNumForName( char *name );
char      *BG_FindNameForClassNum( int pclass );
char      *BG_FindHumanNameForClassNum( int pclass );
char      *BG_FindModelNameForClass( int pclass );
void      BG_FindBBoxForClass( int pclass, vec3_t mins, vec3_t maxs, vec3_t cmaxs, vec3_t dmins, vec3_t dmaxs );
void      BG_FindViewheightForClass( int pclass, int *viewheight, int *cViewheight );
int       BG_FindHealthForClass( int pclass );
int       BG_FindArmorForClass( int pclass );
int       BG_FindFovForClass( int pclass );
float     BG_FindBobForClass( int pclass );
float     BG_FindSpeedForClass( int pclass );
float     BG_FindStickyForClass( int pclass );
int       BG_FindSteptimeForClass( int pclass );
qboolean  BG_ClassHasAbility( int pclass, int ability );
float     BG_FindBuildDistForClass( int pclass );
qboolean  BG_ClassCanEvolveFromTo( int fclass, int tclass );
int       BG_FindEvolveTimeForClass( int pclass );
int       BG_FindValueOfClass( int pclass );

int       BG_FindPriceForWeapon( int weapon );
int       BG_FindSlotsForWeapon( int weapon );
char      *BG_FindNameForWeapon( int weapon );
int       BG_FindWeaponNumForName( char *name );
char      *BG_FindHumanNameForWeapon( int weapon );
void      BG_FindAmmoForWeapon( int weapon, int *quan, int *clips, int *maxClips );
qboolean  BG_WeaponHasAltMode( int weapon );
qboolean  BG_WeaponModesAreSynced( int weapon );
WUTeam_t  BG_FindTeamForWeapon( int weapon );

int       BG_FindPriceForUpgrade( int upgrade );
int       BG_FindSlotsForUpgrade( int upgrade );
char      *BG_FindNameForUpgrade( int upgrade );
int       BG_FindUpgradeNumForName( char *name );
char      *BG_FindHumanNameForUpgrade( int upgrade );
WUTeam_t  BG_FindTeamForUpgrade( int upgrade );

#define ITEM_INDEX(x) ((x)-bg_itemlist)

qboolean  BG_CanItemBeGrabbed( int gametype, const entityState_t *ent, const playerState_t *ps );


// g_dmflags->integer flags
#define DF_NO_FALLING     8
#define DF_FIXED_FOV      16
#define DF_NO_FOOTSTEPS     32

// content masks
#define MASK_ALL        (-1)
#define MASK_SOLID        (CONTENTS_SOLID)
#define MASK_PLAYERSOLID    (CONTENTS_SOLID|CONTENTS_PLAYERCLIP|CONTENTS_BODY)
#define MASK_DEADSOLID      (CONTENTS_SOLID|CONTENTS_PLAYERCLIP)
#define MASK_WATER        (CONTENTS_WATER|CONTENTS_LAVA|CONTENTS_SLIME)
#define MASK_OPAQUE       (CONTENTS_SOLID|CONTENTS_SLIME|CONTENTS_LAVA)
#define MASK_SHOT       (CONTENTS_SOLID|CONTENTS_BODY|CONTENTS_CORPSE)


//
// entityState_t->eType
//
typedef enum {
  ET_GENERAL,
  ET_PLAYER,
  ET_ITEM,
  
  ET_BUILDABLE,       //TA: buildable type
  ET_CREEP,           //TA: creep type
  
  ET_MISSILE,
  ET_MOVER,
  ET_BEAM,
  ET_PORTAL,
  ET_SPEAKER,
  ET_PUSH_TRIGGER,
  ET_TELEPORT_TRIGGER,
  ET_INVISIBLE,
  ET_GRAPPLE,       // grapple hooked on wall

  ET_TORCH,         //TA: torch type
  ET_CORPSE,
  ET_SPRITER,
  ET_ANIMMAPOBJ,
  ET_LENSFLARE,

  ET_EVENTS       // any of the EV_* events can be added freestanding
              // by setting eType to ET_EVENTS + eventNum
              // this avoids having to set eFlags and eventNum
} entityType_t;

void  BG_EvaluateTrajectory( const trajectory_t *tr, int atTime, vec3_t result );
void  BG_EvaluateTrajectoryDelta( const trajectory_t *tr, int atTime, vec3_t result );

void  BG_AddPredictableEventToPlayerstate( int newEvent, int eventParm, playerState_t *ps );

void  BG_TouchJumpPad( playerState_t *ps, entityState_t *jumppad );

void  BG_PlayerStateToEntityState( playerState_t *ps, entityState_t *s, qboolean snap );
void  BG_PlayerStateToEntityStateExtraPolate( playerState_t *ps, entityState_t *s, int time, qboolean snap );

qboolean  BG_PlayerTouchesItem( playerState_t *ps, entityState_t *item, int atTime );

//TA: extra bits: (which I apparently dont need)
/*void      BG_unpackAmmoArray( int weapon, int ammo[ ], int ammo2[ ], int *quan, int *clips, int *maxclips );
void      BG_packAmmoArray( int weapon, int ammo[ ], int ammo2[ ], int quan, int clips, int maxclips );
qboolean  BG_infiniteAmmo( int weapon );
void      BG_packWeapon( int weapon, int stats[ ] );
qboolean  BG_gotWeapon( int weapon, int stats[ ] );*/

#define CREEP_BASESIZE      120 
#define REACTOR_BASESIZE    1000
#define REPEATER_BASESIZE   500

#define ARENAS_PER_TIER   4
#define MAX_ARENAS      1024
#define MAX_ARENAS_TEXT   8192

#define MAX_BOTS      1024
#define MAX_BOTS_TEXT   8192

//TA: conceptually should live in q_shared.h
void    AxisToAngles( vec3_t axis[3], vec3_t angles );
#define Vector2Set(v, x, y) ((v)[0]=(x), (v)[1]=(y))