g_utils.c File Reference

#include "g_local.h"

Go to the source code of this file.

Macros
#define	MAXCHOICES   8

Functions
void	G_ProjectSource (const vec3_t point, const vec3_t distance, const vec3_t forward, const vec3_t right, vec3_t result)
edict_t *	G_Find (edict_t *from, int fieldofs, char *match)
edict_t *	findradius (edict_t *from, vec3_t org, float rad)
edict_t *	G_PickTarget (char *targetname)
void	Think_Delay (edict_t *ent)
void	G_UseTargets (edict_t *ent, edict_t *activator)
float *	tv (float x, float y, float z)
char *	vtos (vec3_t v)
void	G_SetMovedir (vec3_t angles, vec3_t movedir)
float	vectoyaw (vec3_t vec)
void	vectoangles (vec3_t value1, vec3_t angles)
char *	G_CopyString (char *in)
void	G_InitEdict (edict_t *e)
edict_t *	G_Spawn (void)
void	G_FreeEdict (edict_t *ed)
void	G_TouchTriggers (edict_t *ent)
void	G_TouchSolids (edict_t *ent)
qboolean	KillBox (edict_t *ent)

Variables
vec3_t	VEC_UP = {0, -1, 0}
vec3_t	MOVEDIR_UP = {0, 0, 1}
vec3_t	VEC_DOWN = {0, -2, 0}
vec3_t	MOVEDIR_DOWN = {0, 0, -1}

Macro Definition Documentation

MAXCHOICES

#define MAXCHOICES   8

Definition at line 112 of file g_utils.c.

Function Documentation

findradius()

edict_t* findradius	(	edict_t *	from,
		vec3_t	org,
		float	rad
	)

Definition at line 75 of file g_utils.c.

{
    vec3_t  eorg;
    int     j;
 
    if (!from)
        from = g_edicts;
    else
        from++;
    for (; from < &g_edicts[globals.num_edicts]; from++) {
        if (!from->inuse)
            continue;
        if (from->solid == SOLID_NOT)
            continue;
        for (j = 0 ; j < 3 ; j++)
            eorg[j] = org[j] - (from->s.origin[j] + (from->mins[j] + from->maxs[j]) * 0.5);
        if (VectorLength(eorg) > rad)
            continue;
        return from;
    }
 
    return NULL;
}

Referenced by bfg_explode(), bfg_think(), medic_FindDeadMonster(), and T_RadiusDamage().

G_CopyString()

char* G_CopyString

(

char *

in

)

Definition at line 362 of file g_utils.c.

{
    char    *out;
 
    out = gi.TagMalloc(strlen(in) + 1, TAG_LEVEL);
    strcpy(out, in);
    return out;
}

G_Find()

edict_t* G_Find	(	edict_t *	from,
		int	fieldofs,
		char *	match
	)

Definition at line 43 of file g_utils.c.

{
    char    *s;
 
    if (!from)
        from = g_edicts;
    else
        from++;
 
    for (; from < &g_edicts[globals.num_edicts] ; from++) {
        if (!from->inuse)
            continue;
        s = *(char **)((byte *)from + fieldofs);
        if (!s)
            continue;
        if (!Q_stricmp(s, match))
            return from;
    }
 
    return NULL;
}

Referenced by BeginIntermission(), door_use_areaportals(), EndDMLevel(), func_clock_think(), G_PickTarget(), G_UseTargets(), misc_viper_bomb_use(), monster_start_go(), SelectCoopSpawnPoint(), SelectFarthestDeathmatchSpawnPoint(), SelectRandomDeathmatchSpawnPoint(), SelectSpawnPoint(), SP_FixCoopSpots(), target_laser_start(), target_lightramp_use(), and teleporter_touch().

G_FreeEdict()

void G_FreeEdict

(

edict_t *

ed

)

Definition at line 421 of file g_utils.c.

{
    gi.unlinkentity(ed);        // unlink from world
 
    if ((ed - g_edicts) <= (maxclients->value + BODY_QUEUE_SIZE)) {
//      gi.dprintf("tried to free special edict\n");
        return;
    }
 
    memset(ed, 0, sizeof(*ed));
    ed->classname = "freed";
    ed->freetime = level.time;
    ed->inuse = qfalse;
}

Referenced by ai_run(), BecomeExplosion1(), BecomeExplosion2(), bfg_explode(), bfg_touch(), blaster_touch(), Cmd_Give_f(), debris_die(), Drop_Ammo(), drop_make_touchable(), droptofloor(), fire_bfg(), fire_blaster(), fire_rocket(), flare_think(), func_explosive_explode(), G_UseTargets(), gib_die(), gib_think(), Grenade_Explode(), Grenade_Touch(), MegaHealth_think(), misc_blackhole_use(), monster_start(), multi_trigger(), rocket_touch(), SP_func_clock(), SP_func_explosive(), SP_info_null(), SP_info_player_coop(), SP_info_player_deathmatch(), SP_item_health(), SP_item_health_large(), SP_item_health_mega(), SP_item_health_small(), SP_light(), SP_misc_actor(), SP_misc_deadsoldier(), SP_misc_explobox(), SP_misc_gib_arm(), SP_misc_gib_head(), SP_misc_gib_leg(), SP_misc_insane(), SP_misc_strogg_ship(), SP_misc_teleporter(), SP_misc_viper(), SP_monster_berserk(), SP_monster_boss2(), SP_monster_boss3_stand(), SP_monster_brain(), SP_monster_chick(), SP_monster_flipper(), SP_monster_floater(), SP_monster_flyer(), SP_monster_gladiator(), SP_monster_gunner(), SP_monster_hover(), SP_monster_infantry(), SP_monster_jorg(), SP_monster_makron(), SP_monster_medic(), SP_monster_mutant(), SP_monster_parasite(), SP_monster_soldier(), SP_monster_soldier_light(), SP_monster_soldier_ss(), SP_monster_supertank(), SP_monster_tank(), SP_path_corner(), SP_point_combat(), SP_target_changelevel(), SP_target_goal(), SP_target_help(), SP_target_lightramp(), SP_target_secret(), SP_trigger_gravity(), SP_turret_driver(), SpawnEntities(), SpawnItem(), target_crosslevel_target_think(), target_lightramp_use(), Think_Delay(), ThrowDebris(), ThrowGib(), ThrowHead(), TossClientWeapon(), Touch_Item(), trigger_crosslevel_trigger_use(), trigger_push_touch(), turret_breach_finish_init(), Use_Boss3(), use_target_goal(), and use_target_secret().

G_InitEdict()

void G_InitEdict

(

edict_t *

e

)

Definition at line 372 of file g_utils.c.

{
    e->inuse = qtrue;
    e->classname = "noclass";
    e->gravity = 1.0;
    e->s.number = e - g_edicts;
}

Referenced by ClientBegin(), ClientBeginDeathmatch(), and G_Spawn().

G_PickTarget()

edict_t* G_PickTarget

(

char *

targetname

)

Definition at line 114 of file g_utils.c.

{
    edict_t *ent = NULL;
    int     num_choices = 0;
    edict_t *choice[MAXCHOICES];
 
    if (!targetname) {
        gi.dprintf("G_PickTarget called with NULL targetname\n");
        return NULL;
    }
 
    while (1) {
        ent = G_Find(ent, FOFS(targetname), targetname);
        if (!ent)
            break;
        choice[num_choices++] = ent;
        if (num_choices == MAXCHOICES)
            break;
    }
 
    if (!num_choices) {
        gi.dprintf("G_PickTarget: target %s not found\n", targetname);
        return NULL;
    }
 
    return choice[rand() % num_choices];
}

Referenced by actor_use(), FoundTarget(), func_train_find(), monster_start_go(), path_corner_touch(), point_combat_touch(), target_actor_touch(), train_next(), trigger_elevator_init(), trigger_elevator_use(), turret_breach_finish_init(), and turret_driver_link().

G_ProjectSource()

void G_ProjectSource	(	const vec3_t	point,
		const vec3_t	distance,
		const vec3_t	forward,
		const vec3_t	right,
		vec3_t	result
	)

Definition at line 23 of file g_utils.c.

{
    result[0] = point[0] + forward[0] * distance[0] + right[0] * distance[1];
    result[1] = point[1] + forward[1] * distance[0] + right[1] * distance[1];
    result[2] = point[2] + forward[2] * distance[0] + right[2] * distance[1] + distance[2];
}

Referenced by actorMachineGun(), ai_run(), boss2_firebullet_left(), boss2_firebullet_right(), Boss2Rocket(), ChickRocket(), Drop_Item(), floater_fire_blaster(), floater_zap(), flyer_fire(), GladiatorGun(), GunnerFire(), GunnerGrenade(), hover_fire_blaster(), InfantryMachineGun(), jorg_firebullet_left(), jorg_firebullet_right(), jorgBFG(), makronBFG(), MakronHyperblaster(), MakronRailgun(), medic_cable_attack(), medic_fire_blaster(), P_ProjectSource(), parasite_drain_attack(), soldier_fire(), supertankMachineGun(), supertankRocket(), TankBlaster(), TankMachineGun(), and TankRocket().

G_SetMovedir()

void G_SetMovedir	(	vec3_t	angles,
		vec3_t	movedir
	)

Definition at line 296 of file g_utils.c.

{
    if (VectorCompare(angles, VEC_UP)) {
        VectorCopy(MOVEDIR_UP, movedir);
    } else if (VectorCompare(angles, VEC_DOWN)) {
        VectorCopy(MOVEDIR_DOWN, movedir);
    } else {
        AngleVectors(angles, movedir, NULL, NULL);
    }
 
    VectorClear(angles);
}

Referenced by InitTrigger(), SP_func_button(), SP_func_door(), SP_func_water(), SP_target_actor(), SP_target_blaster(), SP_target_spawner(), SP_target_splash(), SP_trigger_multiple(), and target_laser_start().

G_Spawn()

edict_t* G_Spawn

(

void

)

Definition at line 391 of file g_utils.c.

{
    int         i;
    edict_t     *e;
 
    e = &g_edicts[game.maxclients + 1];
    for (i = game.maxclients + 1 ; i < globals.num_edicts ; i++, e++) {
        // the first couple seconds of server time can involve a lot of
        // freeing and allocating, so relax the replacement policy
        if (!e->inuse && (e->freetime < 2 || level.time - e->freetime > 0.5)) {
            G_InitEdict(e);
            return e;
        }
    }
 
    if (i == game.maxentities)
        gi.error("ED_Alloc: no free edicts");
 
    globals.num_edicts++;
    G_InitEdict(e);
    return e;
}

Referenced by ai_run(), Cmd_Give_f(), CreateTargetChangeLevel(), Drop_Item(), fire_bfg(), fire_blaster(), fire_flaregun(), fire_grenade(), fire_grenade2(), fire_rocket(), G_UseTargets(), InitBodyQue(), jorg_dead(), makron_die(), MakronToss(), plat_spawn_inside_trigger(), PlayerNoise(), PlayerTrail_Init(), SP_CreateCoopSpots(), SP_misc_teleporter(), SpawnEntities(), Think_SpawnDoorTrigger(), ThrowDebris(), ThrowGib(), and use_target_spawner().

G_TouchSolids()

void G_TouchSolids

(

edict_t *

ent

)

Definition at line 475 of file g_utils.c.

{
    int         i, num;
    edict_t     *touch[MAX_EDICTS], *hit;
 
    num = gi.BoxEdicts(ent->absmin, ent->absmax, touch
                       , MAX_EDICTS, AREA_SOLID);
 
    // be careful, it is possible to have an entity in this
    // list removed before we get to it (killtriggered)
    for (i = 0 ; i < num ; i++) {
        hit = touch[i];
        if (!hit->inuse)
            continue;
        if (ent->touch)
            ent->touch(hit, ent, NULL, NULL);
        if (!ent->inuse)
            break;
    }
}

G_TouchTriggers()

void G_TouchTriggers

(

edict_t *

ent

)

Definition at line 443 of file g_utils.c.

{
    int         i, num;
    edict_t     *touch[MAX_EDICTS], *hit;
 
    // dead things don't activate triggers!
    if ((ent->client || (ent->svflags & SVF_MONSTER)) && (ent->health <= 0))
        return;
 
    num = gi.BoxEdicts(ent->absmin, ent->absmax, touch
                       , MAX_EDICTS, AREA_TRIGGERS);
 
    // be careful, it is possible to have an entity in this
    // list removed before we get to it (killtriggered)
    for (i = 0 ; i < num ; i++) {
        hit = touch[i];
        if (!hit->inuse)
            continue;
        if (!hit->touch)
            continue;
        hit->touch(hit, ent, NULL, NULL);
    }
}

Referenced by ClientThink(), SV_movestep(), SV_Physics_Step(), SV_Push(), SV_PushEntity(), and SV_StepDirection().

G_UseTargets()

void G_UseTargets	(	edict_t *	ent,
		edict_t *	activator
	)

Definition at line 166 of file g_utils.c.

{
    edict_t     *t;
 
//
// check for a delay
//
    if (ent->delay) {
        // create a temp object to fire at a later time
        t = G_Spawn();
        t->classname = "DelayedUse";
        t->nextthink = level.time + ent->delay;
        t->think = Think_Delay;
        t->activator = activator;
        if (!activator)
            gi.dprintf("Think_Delay with no activator\n");
        t->message = ent->message;
        t->target = ent->target;
        t->killtarget = ent->killtarget;
        return;
    }
 
 
//
// print the message
//
    if ((ent->message) && !(activator->svflags & SVF_MONSTER)) {
        gi.centerprintf(activator, "%s", ent->message);
        if (ent->noise_index)
            gi.sound(activator, CHAN_AUTO, ent->noise_index, 1, ATTN_NORM, 0);
        else
            gi.sound(activator, CHAN_AUTO, gi.soundindex("misc/talk1.wav"), 1, ATTN_NORM, 0);
    }
 
//
// kill killtargets
//
    if (ent->killtarget) {
        t = NULL;
        while ((t = G_Find(t, FOFS(targetname), ent->killtarget))) {
            G_FreeEdict(t);
            if (!ent->inuse) {
                gi.dprintf("entity was removed while using killtargets\n");
                return;
            }
        }
    }
 
//
// fire targets
//
    if (ent->target) {
        t = NULL;
        while ((t = G_Find(t, FOFS(targetname), ent->target))) {
            // doors fire area portals in a specific way
            if (!Q_stricmp(t->classname, "func_areaportal") &&
                (!Q_stricmp(ent->classname, "func_door") || !Q_stricmp(ent->classname, "func_door_rotating")))
                continue;
 
            if (t == ent) {
                gi.dprintf("WARNING: Entity used itself.\n");
            } else {
                if (t->use)
                    t->use(t, ent, activator);
            }
            if (!ent->inuse) {
                gi.dprintf("entity was removed while using targets\n");
                return;
            }
        }
    }
}

Referenced by button_wait(), door_go_up(), func_clock_think(), func_explosive_explode(), func_timer_think(), misc_viper_bomb_touch(), monster_death_use(), multi_trigger(), path_corner_touch(), point_combat_touch(), SP_trigger_always(), target_actor_touch(), target_crosslevel_target_think(), target_explosion_explode(), Think_Delay(), Touch_Item(), train_wait(), trigger_key_use(), trigger_relay_use(), use_target_goal(), and use_target_secret().

KillBox()

qboolean KillBox

(

edict_t *

ent

)

Definition at line 515 of file g_utils.c.

{
    trace_t     tr;
 
    while (1) {
        tr = gi.trace(ent->s.origin, ent->mins, ent->maxs, ent->s.origin, NULL, MASK_PLAYERSOLID);
        if (!tr.ent)
            break;
 
        // nail it
        T_Damage(tr.ent, ent, ent, vec3_origin, ent->s.origin, vec3_origin, 100000, 0, DAMAGE_NO_PROTECTION, MOD_TELEFRAG);
 
        // if we didn't kill it, fail
        if (tr.ent->solid)
            return qfalse;
    }
 
    return qtrue;        // all clear
}

Referenced by func_explosive_spawn(), func_object_use(), func_wall_use(), monster_triggered_spawn(), PutClientInServer(), teleporter_touch(), use_killbox(), and use_target_spawner().

Think_Delay()

void Think_Delay

(

edict_t *

ent

)

Definition at line 144 of file g_utils.c.

{
    G_UseTargets(ent, ent->activator);
    G_FreeEdict(ent);
}

Referenced by G_UseTargets().

tv()

float* tv	(	float	x,
		float	y,
		float	z
	)

Definition at line 248 of file g_utils.c.

{
    static  int     index;
    static  vec3_t  vecs[8];
    float   *v;
 
    // use an array so that multiple tempvectors won't collide
    // for a while
    v = vecs[index];
    index = (index + 1) & 7;
 
    v[0] = x;
    v[1] = y;
    v[2] = z;
 
    return v;
}

Referenced by droptofloor(), NET_Sleep(), and os_select().

vectoangles()

void vectoangles	(	vec3_t	value1,
		vec3_t	angles
	)

Definition at line 330 of file g_utils.c.

{
    float   forward;
    float   yaw, pitch;
 
    if (value1[1] == 0 && value1[0] == 0) {
        yaw = 0;
        if (value1[2] > 0)
            pitch = 90;
        else
            pitch = 270;
    } else {
        if (value1[0])
            yaw = (int)(atan2(value1[1], value1[0]) * 180 / M_PI);
        else if (value1[1] > 0)
            yaw = 90;
        else
            yaw = -90;
        if (yaw < 0)
            yaw += 360;
 
        forward = sqrt(value1[0] * value1[0] + value1[1] * value1[1]);
        pitch = (int)(atan2(value1[2], forward) * 180 / M_PI);
        if (pitch < 0)
            pitch += 360;
    }
 
    angles[PITCH] = -pitch;
    angles[YAW] = yaw;
    angles[ROLL] = 0;
}

Referenced by fire_bfg(), fire_blaster(), fire_flaregun(), fire_grenade(), fire_grenade2(), fire_lead(), fire_rocket(), flare_sparks(), gib_touch(), MakronHyperblaster(), medic_cable_attack(), misc_viper_bomb_prethink(), parasite_drain_attack_ok(), soldier_fire(), TankMachineGun(), turret_driver_link(), and turret_driver_think().

vectoyaw()

float vectoyaw

(

vec3_t

vec

)

Definition at line 310 of file g_utils.c.

{
    float   yaw;
 
    if (/*vec[YAW] == 0 &&*/ vec[PITCH] == 0) {
        yaw = 0;
        if (vec[YAW] > 0)
            yaw = 90;
        else if (vec[YAW] < 0)
            yaw = -90;
    } else {
        yaw = (int)(atan2(vec[YAW], vec[PITCH]) * 180 / M_PI);
        if (yaw < 0)
            yaw += 360;
    }
 
    return yaw;
}

Referenced by actor_pain(), actor_use(), ai_charge(), ai_checkattack(), ai_run(), ai_stand(), barrel_touch(), Boss2_CheckAttack(), FindTarget(), HuntTarget(), Jorg_CheckAttack(), Makron_CheckAttack(), MakronSpawn(), monster_start_go(), path_corner_touch(), PlayerTrail_Add(), and target_actor_touch().

vtos()

char* vtos

(

vec3_t

v

)

Definition at line 275 of file g_utils.c.

{
    static  int     index;
    static  char    str[8][32];
    char    *s;
 
    // use an array so that multiple vtos won't collide
    s = str[index];
    index = (index + 1) & 7;
 
    Q_snprintf(s, 32, "(%i %i %i)", (int)v[0], (int)v[1], (int)v[2]);
 
    return s;
}

Referenced by actor_use(), droptofloor(), flymonster_start_go(), FoundTarget(), monster_start(), monster_start_go(), point_combat_touch(), SP_func_clock(), SP_func_door_rotating(), SP_func_timer(), SP_func_train(), SP_misc_actor(), SP_misc_strogg_ship(), SP_misc_viper(), SP_path_corner(), SP_target_actor(), SP_target_changelevel(), SP_target_earthquake(), SP_target_help(), SP_target_lightramp(), SP_target_speaker(), SP_trigger_gravity(), SP_trigger_key(), SP_trigger_once(), SP_turret_driver(), SpawnItem(), target_laser_start(), target_lightramp_use(), train_next(), turret_breach_finish_init(), and walkmonster_start_go().

Variable Documentation

MOVEDIR_DOWN

vec3_t MOVEDIR_DOWN = {0, 0, -1}

Definition at line 294 of file g_utils.c.

Referenced by G_SetMovedir().

MOVEDIR_UP

vec3_t MOVEDIR_UP = {0, 0, 1}

Definition at line 292 of file g_utils.c.

Referenced by G_SetMovedir().

VEC_DOWN

vec3_t VEC_DOWN = {0, -2, 0}

Definition at line 293 of file g_utils.c.

Referenced by G_SetMovedir().

VEC_UP

vec3_t VEC_UP = {0, -1, 0}

Definition at line 291 of file g_utils.c.

Referenced by G_SetMovedir().