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Cleanup g_utils.c

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Yamagi Burmeister 2011-10-15 08:22:51 +00:00
parent 725c5a94b7
commit b15f5fc407
1 changed files with 337 additions and 275 deletions
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550
src/g_utils.c
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@ -1,121 +1,145 @@
/* /*
Copyright (C) 1997-2001 Id Software, Inc. * Copyright (C) 1997-2001 Id Software, Inc.
*
This program is free software; you can redistribute it and/or * This program is free software; you can redistribute it and/or modify
modify it under the terms of the GNU General Public License * it under the terms of the GNU General Public License as published by
as published by the Free Software Foundation; either version 2 * the Free Software Foundation; either version 2 of the License, or (at
of the License, or (at your option) any later version. * your option) any later version.
*
This program is distributed in the hope that it will be useful, * This program is distributed in the hope that it will be useful, but
but WITHOUT ANY WARRANTY; without even the implied warranty of * WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
See the GNU General Public License for more details. * See the GNU General Public License for more details.
*
You should have received a copy of the GNU General Public License * You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software * along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/ *
// g_utils.c -- misc utility functions for game module * =======================================================================
*
* Misc. utility functions for the game logic.
*
* =======================================================================
*/
#include "header/local.h" #include "header/local.h"
void
void G_ProjectSource (vec3_t point, vec3_t distance, vec3_t forward, vec3_t right, vec3_t result) G_ProjectSource(vec3_t point, vec3_t distance, vec3_t forward,
vec3_t right, vec3_t result)
{ {
result[0] = point[0] + forward[0] * distance[0] + right[0] * distance[1]; 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[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]; result[2] = point[2] + forward[2] * distance[0] + right[2] * distance[1] +
distance[2];
} }
/* /*
============= * Searches all active entities for the next one
G_Find * that holds the matching string at fieldofs (use
* the FOFS() macro) in the structure.
Searches all active entities for the next one that holds *
the matching string at fieldofs (use the FOFS() macro) in the structure. * Searches beginning at the edict after from, or the
* beginning if NULL. NULL will be returned if the end
Searches beginning at the edict after from, or the beginning if NULL * of the list is reached.
NULL will be returned if the end of the list is reached. */
edict_t *
============= G_Find(edict_t *from, int fieldofs, char *match)
*/
edict_t *G_Find (edict_t *from, int fieldofs, char *match)
{ {
char *s; char *s;
if (!from) if (!from)
{
from = g_edicts; from = g_edicts;
}
else else
{
from++; from++;
}
for ( ; from < &g_edicts[globals.num_edicts] ; from++) for ( ; from < &g_edicts[globals.num_edicts]; from++)
{ {
if (!from->inuse) if (!from->inuse)
{
continue; continue;
s = *(char **) ((byte *)from + fieldofs); }
s = *(char **)((byte *)from + fieldofs);
if (!s) if (!s)
{
continue; continue;
if (!Q_stricmp (s, match)) }
if (!Q_stricmp(s, match))
{
return from; return from;
} }
}
return NULL; return NULL;
} }
/* /*
================= * Returns entities that have origins within a spherical area
findradius */
edict_t *
Returns entities that have origins within a spherical area findradius(edict_t *from, vec3_t org, float rad)
findradius (origin, radius)
=================
*/
edict_t *findradius (edict_t *from, vec3_t org, float rad)
{ {
vec3_t eorg; vec3_t eorg;
int j; int j;
if (!from) if (!from)
{
from = g_edicts; from = g_edicts;
}
else else
{
from++; from++;
}
for ( ; from < &g_edicts[globals.num_edicts]; from++) for ( ; from < &g_edicts[globals.num_edicts]; from++)
{ {
if (!from->inuse) if (!from->inuse)
{
continue; continue;
}
if (from->solid == SOLID_NOT) if (from->solid == SOLID_NOT)
{
continue; continue;
for (j=0 ; j<3 ; j++) }
eorg[j] = org[j] - (from->s.origin[j] + (from->mins[j] + from->maxs[j])*0.5);
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) if (VectorLength(eorg) > rad)
{
continue; continue;
}
return from; return from;
} }
return NULL; return NULL;
} }
/* /*
============= * Searches all active entities for the next one that holds
G_PickTarget * the matching string at fieldofs (use the FOFS() macro) in the structure.
*
Searches all active entities for the next one that holds * Searches beginning at the edict after from, or the beginning if NULL
the matching string at fieldofs (use the FOFS() macro) in the structure. * NULL will be returned if the end of the list is reached.
*/
Searches beginning at the edict after from, or the beginning if NULL
NULL will be returned if the end of the list is reached.
=============
*/
#define MAXCHOICES 8 #define MAXCHOICES 8
edict_t *G_PickTarget (char *targetname) edict_t *
G_PickTarget(char *targetname)
{ {
edict_t *ent = NULL; edict_t *ent = NULL;
int num_choices = 0; int num_choices = 0;
@ -127,15 +151,22 @@ edict_t *G_PickTarget (char *targetname)
return NULL; return NULL;
} }
while(1) while (1)
{ {
ent = G_Find (ent, FOFS(targetname), targetname); ent = G_Find(ent, FOFS(targetname), targetname);
if (!ent) if (!ent)
{
break; break;
}
choice[num_choices++] = ent; choice[num_choices++] = ent;
if (num_choices == MAXCHOICES) if (num_choices == MAXCHOICES)
{
break; break;
} }
}
if (!num_choices) if (!num_choices)
{ {
@ -146,75 +177,77 @@ edict_t *G_PickTarget (char *targetname)
return choice[rand() % num_choices]; return choice[rand() % num_choices];
} }
void
Think_Delay(edict_t *ent)
void Think_Delay (edict_t *ent)
{ {
G_UseTargets (ent, ent->activator); G_UseTargets(ent, ent->activator);
G_FreeEdict (ent); G_FreeEdict(ent);
} }
/* /*
============================== * The global "activator" should be set to the entity
G_UseTargets * that initiated the firing.
*
the global "activator" should be set to the entity that initiated the firing. * If self.delay is set, a DelayedUse entity will be
* created that will actually do the SUB_UseTargets
If self.delay is set, a DelayedUse entity will be created that will actually * after that many seconds have passed.
do the SUB_UseTargets after that many seconds have passed. *
* Centerprints any self.message to the activator.
Centerprints any self.message to the activator. *
* Search for (string)targetname in all entities that
Search for (string)targetname in all entities that * match (string)self.target and call their .use function
match (string)self.target and call their .use function */
void
============================== G_UseTargets(edict_t *ent, edict_t *activator)
*/
void G_UseTargets (edict_t *ent, edict_t *activator)
{ {
edict_t *t; edict_t *t;
// /* check for a delay */
// check for a delay
//
if (ent->delay) if (ent->delay)
{ {
// create a temp object to fire at a later time /* create a temp object to fire at a later time */
t = G_Spawn(); t = G_Spawn();
t->classname = "DelayedUse"; t->classname = "DelayedUse";
t->nextthink = level.time + ent->delay; t->nextthink = level.time + ent->delay;
t->think = Think_Delay; t->think = Think_Delay;
t->activator = activator; t->activator = activator;
if (!activator) if (!activator)
gi.dprintf ("Think_Delay with no activator\n"); {
gi.dprintf("Think_Delay with no activator\n");
}
t->message = ent->message; t->message = ent->message;
t->target = ent->target; t->target = ent->target;
t->killtarget = ent->killtarget; t->killtarget = ent->killtarget;
return; return;
} }
/* print the message */
//
// print the message
//
if ((ent->message) && !(activator->svflags & SVF_MONSTER)) if ((ent->message) && !(activator->svflags & SVF_MONSTER))
{ {
gi.centerprintf (activator, "%s", ent->message); gi.centerprintf(activator, "%s", ent->message);
if (ent->noise_index) if (ent->noise_index)
gi.sound (activator, CHAN_AUTO, ent->noise_index, 1, ATTN_NORM, 0); {
gi.sound(activator, CHAN_AUTO, ent->noise_index, 1, ATTN_NORM, 0);
}
else else
gi.sound (activator, CHAN_AUTO, gi.soundindex ("misc/talk1.wav"), 1, ATTN_NORM, 0); {
gi.sound(activator, CHAN_AUTO, gi.soundindex(
"misc/talk1.wav"), 1, ATTN_NORM, 0);
}
} }
// /* kill killtargets */
// kill killtargets
//
if (ent->killtarget) if (ent->killtarget)
{ {
t = NULL; t = NULL;
while ((t = G_Find (t, FOFS(targetname), ent->killtarget)))
while ((t = G_Find(t, FOFS(targetname), ent->killtarget)))
{ {
G_FreeEdict (t); G_FreeEdict(t);
if (!ent->inuse) if (!ent->inuse)
{ {
gi.dprintf("entity was removed while using killtargets\n"); gi.dprintf("entity was removed while using killtargets\n");
@ -223,28 +256,33 @@ void G_UseTargets (edict_t *ent, edict_t *activator)
} }
} }
// /* fire targets */
// fire targets
//
if (ent->target) if (ent->target)
{ {
t = NULL; t = NULL;
while ((t = G_Find (t, FOFS(targetname), ent->target)))
while ((t = G_Find(t, FOFS(targetname), ent->target)))
{ {
// doors fire area portals in a specific way /* doors fire area portals in a specific way */
if (!Q_stricmp(t->classname, "func_areaportal") && if (!Q_stricmp(t->classname, "func_areaportal") &&
(!Q_stricmp(ent->classname, "func_door") || !Q_stricmp(ent->classname, "func_door_rotating"))) (!Q_stricmp(ent->classname, "func_door") ||
!Q_stricmp(ent->classname, "func_door_rotating")))
{
continue; continue;
}
if (t == ent) if (t == ent)
{ {
gi.dprintf ("WARNING: Entity used itself.\n"); gi.dprintf("WARNING: Entity used itself.\n");
} }
else else
{ {
if (t->use) if (t->use)
t->use (t, ent, activator); {
t->use(t, ent, activator);
} }
}
if (!ent->inuse) if (!ent->inuse)
{ {
gi.dprintf("entity was removed while using targets\n"); gi.dprintf("entity was removed while using targets\n");
@ -254,25 +292,19 @@ void G_UseTargets (edict_t *ent, edict_t *activator)
} }
} }
/* /*
============= * This is just a convenience function
TempVector * for making temporary vectors for function calls
*/
This is just a convenience function float *
for making temporary vectors for function calls tv(float x, float y, float z)
=============
*/
float *tv (float x, float y, float z)
{ {
static int index; static int index;
static vec3_t vecs[8]; static vec3_t vecs[8];
float *v; float *v;
// use an array so that multiple tempvectors won't collide
// for a while
v = vecs[index]; v = vecs[index];
index = (index + 1)&7; index = (index + 1) & 7;
v[0] = x; v[0] = x;
v[1] = y; v[1] = y;
@ -281,124 +313,146 @@ float *tv (float x, float y, float z)
return v; return v;
} }
/* /*
============= * This is just a convenience function
VectorToString * for printing vectors
*/
This is just a convenience function char *
for printing vectors vtos(vec3_t v)
=============
*/
char *vtos (vec3_t v)
{ {
static int index; static int index;
static char str[8][32]; static char str[8][32];
char *s; char *s;
// use an array so that multiple vtos won't collide /* use an array so that multiple vtos won't collide */
s = str[index]; s = str[index];
index = (index + 1)&7; index = (index + 1) & 7;
Com_sprintf (s, 32, "(%i %i %i)", (int)v[0], (int)v[1], (int)v[2]); Com_sprintf(s, 32, "(%i %i %i)", (int)v[0], (int)v[1], (int)v[2]);
return s; return s;
} }
vec3_t VEC_UP = {0, -1, 0}; vec3_t VEC_UP = {0, -1, 0};
vec3_t MOVEDIR_UP = {0, 0, 1}; vec3_t MOVEDIR_UP = {0, 0, 1};
vec3_t VEC_DOWN = {0, -2, 0}; vec3_t VEC_DOWN = {0, -2, 0};
vec3_t MOVEDIR_DOWN = {0, 0, -1}; vec3_t MOVEDIR_DOWN = {0, 0, -1};
void G_SetMovedir (vec3_t angles, vec3_t movedir) void
G_SetMovedir(vec3_t angles, vec3_t movedir)
{ {
if (VectorCompare (angles, VEC_UP)) if (VectorCompare(angles, VEC_UP))
{ {
VectorCopy (MOVEDIR_UP, movedir); VectorCopy(MOVEDIR_UP, movedir);
} }
else if (VectorCompare (angles, VEC_DOWN)) else if (VectorCompare(angles, VEC_DOWN))
{ {
VectorCopy (MOVEDIR_DOWN, movedir); VectorCopy(MOVEDIR_DOWN, movedir);
} }
else else
{ {
AngleVectors (angles, movedir, NULL, NULL); AngleVectors(angles, movedir, NULL, NULL);
} }
VectorClear (angles); VectorClear(angles);
} }
float
float vectoyaw (vec3_t vec) vectoyaw(vec3_t vec)
{ {
float yaw; float yaw;
if (/* vec[YAW] == 0 && */ vec[PITCH] == 0) if (vec[PITCH] == 0)
{ {
yaw = 0; yaw = 0;
if (vec[YAW] > 0) if (vec[YAW] > 0)
{
yaw = 90; yaw = 90;
}
else if (vec[YAW] < 0) else if (vec[YAW] < 0)
{
yaw = -90; yaw = -90;
} }
}
else else
{ {
yaw = (int) (atan2(vec[YAW], vec[PITCH]) * 180 / M_PI); yaw = (int)(atan2(vec[YAW], vec[PITCH]) * 180 / M_PI);
if (yaw < 0) if (yaw < 0)
{
yaw += 360; yaw += 360;
} }
}
return yaw; return yaw;
} }
void
void vectoangles (vec3_t value1, vec3_t angles) vectoangles(vec3_t value1, vec3_t angles)
{ {
float forward; float forward;
float yaw, pitch; float yaw, pitch;
if (value1[1] == 0 && value1[0] == 0) if ((value1[1] == 0) && (value1[0] == 0))
{ {
yaw = 0; yaw = 0;
if (value1[2] > 0) if (value1[2] > 0)
{
pitch = 90; pitch = 90;
}
else else
{
pitch = 270; pitch = 270;
} }
}
else else
{ {
if (value1[0]) if (value1[0])
yaw = (int) (atan2(value1[1], value1[0]) * 180 / M_PI); {
yaw = (int)(atan2(value1[1], value1[0]) * 180 / M_PI);
}
else if (value1[1] > 0) else if (value1[1] > 0)
{
yaw = 90; yaw = 90;
}
else else
{
yaw = -90; yaw = -90;
if (yaw < 0) }
yaw += 360;
if (yaw < 0)
{
yaw += 360;
}
forward = sqrt(value1[0] * value1[0] + value1[1] * value1[1]);
pitch = (int)(atan2(value1[2], forward) * 180 / M_PI);
forward = sqrt (value1[0]*value1[0] + value1[1]*value1[1]);
pitch = (int) (atan2(value1[2], forward) * 180 / M_PI);
if (pitch < 0) if (pitch < 0)
{
pitch += 360; pitch += 360;
} }
}
angles[PITCH] = -pitch; angles[PITCH] = -pitch;
angles[YAW] = yaw; angles[YAW] = yaw;
angles[ROLL] = 0; angles[ROLL] = 0;
} }
char *G_CopyString (char *in) char *
G_CopyString(char *in)
{ {
char *out; char *out;
out = gi.TagMalloc (strlen(in)+1, TAG_LEVEL); out = gi.TagMalloc(strlen(in) + 1, TAG_LEVEL);
strcpy (out, in); strcpy(out, in);
return out; return out;
} }
void
void G_InitEdict (edict_t *e) G_InitEdict(edict_t *e)
{ {
e->inuse = true; e->inuse = true;
e->classname = "noclass"; e->classname = "noclass";
@ -407,162 +461,170 @@ void G_InitEdict (edict_t *e)
} }
/* /*
================= * Either finds a free edict, or allocates a new one.
G_Spawn * Try to avoid reusing an entity that was recently freed, because it
* can cause the client to think the entity morphed into something else
Either finds a free edict, or allocates a new one. * instead of being removed and recreated, which can cause interpolated
Try to avoid reusing an entity that was recently freed, because it * angles and bad trails.
can cause the client to think the entity morphed into something else */
instead of being removed and recreated, which can cause interpolated edict_t *
angles and bad trails. G_Spawn(void)
=================
*/
edict_t *G_Spawn (void)
{ {
int i; int i;
edict_t *e; edict_t *e;
e = &g_edicts[(int)maxclients->value+1]; e = &g_edicts[(int)maxclients->value + 1];
for ( i=maxclients->value+1 ; i<globals.num_edicts ; i++, e++)
for (i = maxclients->value + 1; i < globals.num_edicts; i++, e++)
{ {
// the first couple seconds of server time can involve a lot of /* the first couple seconds of server time can involve a lot of
// freeing and allocating, so relax the replacement policy freeing and allocating, so relax the replacement policy */
if (!e->inuse && ( e->freetime < 2 || level.time - e->freetime > 0.5 ) ) if (!e->inuse && ((e->freetime < 2) || (level.time - e->freetime > 0.5)))
{ {
G_InitEdict (e); G_InitEdict(e);
return e; return e;
} }
} }
if (i == game.maxentities) if (i == game.maxentities)
gi.error ("ED_Alloc: no free edicts"); {
gi.error("ED_Alloc: no free edicts");
}
globals.num_edicts++; globals.num_edicts++;
G_InitEdict (e); G_InitEdict(e);
return e; return e;
} }
/* /*
================= * Marks the edict as free
G_FreeEdict */
void
Marks the edict as free G_FreeEdict(edict_t *ed)
=================
*/
void G_FreeEdict (edict_t *ed)
{ {
gi.unlinkentity (ed); // unlink from world gi.unlinkentity(ed); /* unlink from world */
if ((ed - g_edicts) <= (maxclients->value + BODY_QUEUE_SIZE)) if ((ed - g_edicts) <= (maxclients->value + BODY_QUEUE_SIZE))
{ {
return; return;
} }
memset (ed, 0, sizeof(*ed)); memset(ed, 0, sizeof(*ed));
ed->classname = "freed"; ed->classname = "freed";
ed->freetime = level.time; ed->freetime = level.time;
ed->inuse = false; ed->inuse = false;
} }
void
/* G_TouchTriggers(edict_t *ent)
============
G_TouchTriggers
============
*/
void G_TouchTriggers (edict_t *ent)
{ {
int i, num; int i, num;
edict_t *touch[MAX_EDICTS], *hit; edict_t *touch[MAX_EDICTS], *hit;
// dead things don't activate triggers! /* dead things don't activate triggers! */
if ((ent->client || (ent->svflags & SVF_MONSTER)) && (ent->health <= 0)) if ((ent->client || (ent->svflags & SVF_MONSTER)) && (ent->health <= 0))
{
return; return;
}
num = gi.BoxEdicts (ent->absmin, ent->absmax, touch num = gi.BoxEdicts(ent->absmin, ent->absmax, touch,
, MAX_EDICTS, AREA_TRIGGERS); MAX_EDICTS, AREA_TRIGGERS);
// be careful, it is possible to have an entity in this /* be careful, it is possible to have an entity in this
// list removed before we get to it (killtriggered) list removed before we get to it (killtriggered) */
for (i=0 ; i<num ; i++) for (i = 0; i < num; i++)
{ {
hit = touch[i]; hit = touch[i];
if (!hit->inuse) if (!hit->inuse)
{
continue; continue;
}
if (!hit->touch) if (!hit->touch)
{
continue; continue;
hit->touch (hit, ent, NULL, NULL); }
hit->touch(hit, ent, NULL, NULL);
} }
} }
/* /*
============ * Call after linking a new trigger in during gameplay
G_TouchSolids * to force all entities it covers to immediately touch it
*/
Call after linking a new trigger in during gameplay void
to force all entities it covers to immediately touch it G_TouchSolids(edict_t *ent)
============
*/
void G_TouchSolids (edict_t *ent)
{ {
int i, num; int i, num;
edict_t *touch[MAX_EDICTS], *hit; edict_t *touch[MAX_EDICTS], *hit;
num = gi.BoxEdicts (ent->absmin, ent->absmax, touch num = gi.BoxEdicts(ent->absmin, ent->absmax, touch,
, MAX_EDICTS, AREA_SOLID); MAX_EDICTS, AREA_SOLID);
// be careful, it is possible to have an entity in this /* be careful, it is possible to have an entity in this
// list removed before we get to it (killtriggered) list removed before we get to it (killtriggered) */
for (i=0 ; i<num ; i++) for (i = 0; i < num; i++)
{ {
hit = touch[i]; hit = touch[i];
if (!hit->inuse) if (!hit->inuse)
{
continue; continue;
}
if (ent->touch) if (ent->touch)
ent->touch (hit, ent, NULL, NULL); {
ent->touch(hit, ent, NULL, NULL);
}
if (!ent->inuse) if (!ent->inuse)
{
break; break;
} }
}
} }
/*
* ==============================================================================
*
* Kill box
*
* ==============================================================================
*/
/* /*
============================================================================== * Kills all entities that would touch the proposed new positioning
* of ent. Ent should be unlinked before calling this!
Kill box */
qboolean
============================================================================== KillBox(edict_t *ent)
*/
/*
=================
KillBox
Kills all entities that would touch the proposed new positioning
of ent. Ent should be unlinked before calling this!
=================
*/
qboolean KillBox (edict_t *ent)
{ {
trace_t tr; trace_t tr;
while (1) while (1)
{ {
tr = gi.trace (ent->s.origin, ent->mins, ent->maxs, ent->s.origin, NULL, MASK_PLAYERSOLID); tr = gi.trace(ent->s.origin, ent->mins, ent->maxs, ent->s.origin,
NULL, MASK_PLAYERSOLID);
if (!tr.ent) if (!tr.ent)
{
break; 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 false;
} }
return true; // all clear /* 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 false;
}
}
return true; /* all clear */
} }