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quakeforge/libs/video/renderer/gl/gl_dyn_part.c
Ragnvald Maartmann-Moe IV 2a8896d4a1 Grr, what's with cvs today?
2002-09-13 01:08:21 +00:00

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/*
gl_dyn_part.c
OpenGL particle system.
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
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.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
static const char rcsid[] =
"$Id$";
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <stdlib.h>
#include "QF/cmd.h"
#include "QF/console.h"
#include "QF/cvar.h"
#include "QF/qargs.h"
#include "QF/quakefs.h"
#include "QF/render.h"
#include "QF/sys.h"
#include "QF/GL/defines.h"
#include "QF/GL/funcs.h"
#include "QF/GL/qf_explosions.h"
#include "QF/GL/qf_textures.h"
#include "compat.h"
#include "r_cvar.h"
#include "r_dynamic.h"
#include "r_shared.h"
#include "varrays.h"
int ramp1[8] = { 0x6f, 0x6d, 0x6b, 0x69, 0x67, 0x65, 0x63, 0x61 };
int ramp2[8] = { 0x6f, 0x6e, 0x6d, 0x6c, 0x6b, 0x6a, 0x68, 0x66 };
int ramp3[8] = { 0x6d, 0x6b, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 };
int part_tex_dot = 0;
int part_tex_spark = 1;
int part_tex_smoke = 2;
int pVAsize;
int *pVAindices;
varray_t2f_c4ub_v3f_t *particleVertexArray;
inline static void
particle_new (ptype_t type, int texnum, const vec3_t org, float scale,
const vec3_t vel, float die, int color, float alpha, float ramp)
{
particle_t *part;
/*
// Uncomment this for particle debugging!
if (numparticles >= r_maxparticles) {
Sys_Error ("FAILED PARTICLE ALLOC!");
return NULL;
}
*/
part = &particles[numparticles++];
VectorCopy (org, part->org);
part->color = color;
part->tex = texnum;
part->scale = scale;
part->alpha = alpha;
VectorCopy (vel, part->vel);
part->type = type;
part->die = die;
part->ramp = ramp;
}
inline static void
particle_new_random (ptype_t type, int texnum, const vec3_t org, int org_fuzz,
float scale, int vel_fuzz, float die, int color,
float alpha, float ramp)
{
int j;
vec3_t porg, pvel;
for (j = 0; j < 3; j++) {
if (org_fuzz)
porg[j] = qfrandom (org_fuzz * 2) - org_fuzz + org[j];
if (vel_fuzz)
pvel[j] = qfrandom (vel_fuzz * 2) - vel_fuzz;
}
particle_new (type, texnum, porg, scale, pvel, die, color, alpha, ramp);
}
inline void
R_ClearParticles (void)
{
numparticles = 0;
}
void
R_InitParticles (void)
{
int i;
if (r_maxparticles && r_init) {
if (vaelements > 3)
pVAsize = min (vaelements - (vaelements % 4), r_maxparticles * 4);
else
pVAsize = r_maxparticles * 4;
Con_Printf ("Particles: %i maximum vertex elements.\n", pVAsize);
if (particleVertexArray)
free (particleVertexArray);
particleVertexArray = (varray_t2f_c4ub_v3f_t *)
calloc (pVAsize, sizeof (varray_t2f_c4ub_v3f_t));
qfglInterleavedArrays (GL_T2F_C4UB_V3F, 0, particleVertexArray);
if (pVAindices)
free (pVAindices);
pVAindices = (int *) calloc (pVAsize, sizeof (int));
for (i = 0; i < pVAsize; i++)
pVAindices[i] = i;
} else {
if (particleVertexArray) {
free (particleVertexArray);
particleVertexArray = 0;
}
if (pVAindices) {
free (pVAindices);
pVAindices = 0;
}
}
}
void
R_ReadPointFile_f (void)
{
char name[MAX_OSPATH], *mapname, *t1;
int c, r;
vec3_t org;
QFile *f;
mapname = strdup (r_worldentity.model->name);
if (!mapname)
Sys_Error ("Can't duplicate mapname!");
t1 = strrchr (mapname, '.');
if (!t1)
Sys_Error ("Can't find .!");
t1[0] = '\0';
snprintf (name, sizeof (name), "%s.pts", mapname);
free (mapname);
COM_FOpenFile (name, &f);
if (!f) {
Con_Printf ("couldn't open %s\n", name);
return;
}
Con_Printf ("Reading %s...\n", name);
c = 0;
for (;;) {
char buf[64];
Qgets (f, buf, sizeof (buf));
r = sscanf (buf, "%f %f %f\n", &org[0], &org[1], &org[2]);
if (r != 3)
break;
c++;
if (numparticles >= r_maxparticles) {
Con_Printf ("Not enough free particles\n");
break;
} else {
particle_new (pt_static, part_tex_dot, org, 1.5, vec3_origin,
99999, (-c) & 15, 1.0, 0.0);
}
}
Qclose (f);
Con_Printf ("%i points read\n", c);
}
void
R_ParticleExplosion_QF (const vec3_t org)
{
// R_NewExplosion (org);
if (numparticles >= r_maxparticles)
return;
particle_new_random (pt_smokecloud, part_tex_smoke, org, 4, 30, 8,
r_realtime + 5.0, (rand () & 7) + 8,
0.5 + qfrandom (0.25), 0.0);
}
void
R_ParticleExplosion2_QF (const vec3_t org, int colorStart, int colorLength)
{
unsigned int i;
unsigned int colorMod = 0, j = 512;
if (numparticles >= r_maxparticles)
return;
else if (numparticles + j >= r_maxparticles)
j = r_maxparticles - numparticles;
for (i = 0; i < j; i++) {
particle_new_random (pt_blob, part_tex_dot, org, 16, 2, 256,
r_realtime + 0.3,
colorStart + (colorMod % colorLength), 1.0, 0.0);
colorMod++;
}
}
void
R_BlobExplosion_QF (const vec3_t org)
{
unsigned int i;
unsigned int j = 1024;
if (numparticles >= r_maxparticles)
return;
else if (numparticles + j >= r_maxparticles)
j = r_maxparticles - numparticles;
for (i = 0; i < j >> 1; i++) {
particle_new_random (pt_blob, part_tex_dot, org, 12, 2, 256,
r_realtime + 1.0 + (rand () & 7) * 0.05,
66 + rand () % 6, 1.0, 0.0);
}
for (i = 0; i < j / 2; i++) {
particle_new_random (pt_blob2, part_tex_dot, org, 12, 2, 256,
r_realtime + 1.0 + (rand () & 7) * 0.05,
150 + rand () % 6, 1.0, 0.0);
}
}
static inline void
R_RunSparkEffect_QF (const vec3_t org, int count, int ofuzz)
{
if (numparticles >= r_maxparticles)
return;
particle_new (pt_smokecloud, part_tex_smoke, org,
ofuzz * 0.08, vec3_origin, r_realtime + 9,
12 + (rand () & 3), 0.25 + qfrandom (0.125), 0.0);
if (numparticles + count >= r_maxparticles)
count = r_maxparticles - numparticles;
while (count--)
particle_new_random (pt_fallfadespark, part_tex_dot, org,
ofuzz * 0.75, 0.7, 96, r_realtime + 5.0,
ramp1[rand () & 7], 1.0, 0.0);
}
static inline void
R_BloodPuff_QF (const vec3_t org, int count)
{
if (numparticles >= r_maxparticles)
return;
particle_new (pt_bloodcloud, part_tex_smoke, org, count / 5, vec3_origin,
r_realtime + 99.0, 70 + (rand () & 3), 0.5, 0.0);
}
void
R_BloodPuffEffect_QF (const vec3_t org, int count)
{
R_BloodPuff_QF (org, count);
}
void
R_GunshotEffect_QF (const vec3_t org, int count)
{
int scale = 16;
if (count > 120)
scale = 24;
R_RunSparkEffect_QF (org, count >> 1, scale);
}
void
R_LightningBloodEffect_QF (const vec3_t org)
{
int count = 7;
R_BloodPuff_QF (org, 50);
if (numparticles >= r_maxparticles)
return;
particle_new (pt_smokecloud, part_tex_smoke, org, 3.0, vec3_origin,
r_realtime + 9.0, 12 + (rand () & 3),
0.25 + qfrandom (0.125), 0.0);
if (numparticles + count >= r_maxparticles)
count = r_maxparticles - numparticles;
while (count--)
particle_new_random (pt_fallfadespark, part_tex_spark, org, 12, 2.0,
128, r_realtime + 5.0, 244 + (rand () % 3), 1.0,
0.0);
}
void
R_RunParticleEffect_QF (const vec3_t org, const vec3_t dir, int color,
int count)
{
float scale;
unsigned int i, j;
vec3_t porg;
if (numparticles >= r_maxparticles)
return;
scale = pow (count, 0.23); // calculate scale before clipping to part. max
if (numparticles + count >= r_maxparticles)
count = r_maxparticles - numparticles;
for (i = 0; i < count; i++) {
for (j = 0; j < 3; j++) {
porg[j] = org[j] + scale * ((rand () & 15) - 7.5);
}
// Note that ParseParticleEffect handles (dir * 15)
particle_new (pt_grav, part_tex_dot, porg, 1.5, dir,
r_realtime + 0.1 * (rand () % 5),
(color & ~7) + (rand () & 7), 1.0, 0.0);
}
}
void
R_SpikeEffect_QF (const vec3_t org)
{
R_RunSparkEffect_QF (org, 5, 8);
}
void
R_SuperSpikeEffect_QF (const vec3_t org)
{
R_RunSparkEffect_QF (org, 10, 8);
}
void
R_KnightSpikeEffect_QF (const vec3_t org)
{
unsigned int count = 10;
if (numparticles >= r_maxparticles)
return;
particle_new (pt_smokecloud, part_tex_smoke, org, 1.0, vec3_origin,
r_realtime + 9.0, 234, 0.25 + qfrandom (0.125), 0.0);
if (numparticles + count >= r_maxparticles)
count = r_maxparticles - numparticles;
while (count--)
particle_new_random (pt_fallfadespark, part_tex_dot, org, 6, 0.7, 96,
r_realtime + 5.0, 234, 1.0, 0.0);
}
void
R_WizSpikeEffect_QF (const vec3_t org)
{
unsigned int count = 15;
if (numparticles >= r_maxparticles)
return;
particle_new (pt_smokecloud, part_tex_smoke, org, 2.0, vec3_origin,
r_realtime + 9.0, 63, 0.25 + qfrandom (0.125), 0.0);
if (numparticles + count >= r_maxparticles)
count = r_maxparticles - numparticles;
while (count--)
particle_new_random (pt_fallfadespark, part_tex_dot, org, 12, 0.7, 96,
r_realtime + 5.0, 63, 1.0, 0.0);
}
void
R_LavaSplash_QF (const vec3_t org)
{
float vel;
int rnd, i, j;
int k = 256;
vec3_t dir, porg, pvel;
if (numparticles + k >= r_maxparticles) {
return;
} // else if (numparticles + k >= r_maxparticles) {
// k = r_maxparticles - numparticles;
// }
dir[2] = 256;
for (i = -128; i < 128; i += 16) {
for (j = -128; j < 128; j += 16) {
rnd = rand ();
dir[0] = j + (rnd & 7);
dir[1] = i + ((rnd >> 6) & 7);
porg[0] = org[0] + dir[0];
porg[1] = org[1] + dir[1];
porg[2] = org[2] + ((rnd >> 9) & 63);
VectorNormalize (dir);
rnd = rand ();
vel = 50 + (rnd & 63);
VectorScale (dir, vel, pvel);
particle_new (pt_grav, part_tex_dot, porg, 3, pvel,
r_realtime + 2.0 + ((rnd >> 7) & 31) * 0.02,
224 + ((rnd >> 12) & 7), 0.75, 0.0);
}
}
}
void
R_TeleportSplash_QF (const vec3_t org)
{
float vel;
int rnd, i, j, k;
int l = 896;
vec3_t dir, pdir, porg, pvel;
if (numparticles + l >= r_maxparticles) {
return;
} // else if (numparticles + l >= r_maxparticles) {
// l = r_maxparticles - numparticles;
// }
for (k = -24; k < 32; k += 4) {
dir[2] = k * 8;
for (i = -16; i < 16; i += 4) {
dir[1] = i * 8;
for (j = -16; j < 16; j += 4) {
dir[0] = j * 8;
VectorCopy (dir, pdir);
VectorNormalize (pdir);
rnd = rand ();
porg[0] = org[0] + i + (rnd & 3);
porg[1] = org[1] + j + ((rnd >> 2) & 3);
porg[2] = org[2] + k + ((rnd >> 4) & 3);
vel = 50 + ((rnd >> 6) & 63);
VectorScale (pdir, vel, pvel);
particle_new (pt_grav, part_tex_spark, porg, 0.6, pvel,
(r_realtime + 0.2 + (rand () & 15) * 0.01),
(7 + ((rnd >> 12) & 7)), 1.0, 0.0);
}
}
}
}
void
R_RocketTrail_QF (entity_t *ent)
{
float dist, maxlen, origlen, percent, pscale, pscalenext;
float len = 0.0;
vec3_t vec;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
pscale = 1.5 + qfrandom (1.5);
while (len < maxlen) {
pscalenext = 1.5 + qfrandom (1.5);
dist = (pscale + pscalenext) * 3.0;
percent = len * origlen;
particle_new (pt_smoke, part_tex_smoke, ent->old_origin,
pscale + percent * 4.0, vec3_origin,
r_realtime + 2.0 - percent * 2.0,
12 + (rand () & 3),
0.5 + qfrandom (0.125) - percent * 0.40, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorMA (ent->old_origin, len, vec, ent->old_origin);
pscale = pscalenext;
}
}
void
R_GrenadeTrail_QF (entity_t *ent)
{
float dist, maxlen, origlen, percent, pscale, pscalenext;
float len = 0.0;
vec3_t vec;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
pscale = 6.0 + qfrandom (7.0);
while (len < maxlen) {
pscalenext = 6.0 + qfrandom (7.0);
dist = (pscale + pscalenext) * 2.0;
percent = len * origlen;
particle_new (pt_smoke, part_tex_smoke, ent->old_origin,
pscale + percent * 4.0, vec3_origin,
r_realtime + 2.0 - percent * 2.0,
1 + (rand () & 3),
0.625 + qfrandom (0.125) - percent * 0.40, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorMA (ent->old_origin, len, vec, ent->old_origin);
pscale = pscalenext;
}
}
void
R_BloodTrail_QF (entity_t *ent)
{
float dist, maxlen, origlen, percent, pscale, pscalenext;
float len = 0.0;
int j;
vec3_t vec, porg, pvel;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
pscale = 5.0 + qfrandom (10.0);
while (len < maxlen) {
pscalenext = 5.0 + qfrandom (10.0);
dist = (pscale + pscalenext) * 1.5;
for (j = 0; j < 3; j++) {
pvel[j] = qfrandom (24.0) - 12.0;
porg[j] = ent->old_origin[j] + qfrandom (3.0) - 1.5;
}
percent = len * origlen;
pvel[2] -= percent * 40.0;
particle_new (pt_grav, part_tex_smoke, porg, pscale, pvel,
r_realtime + 2.0 - percent * 2.0, 68 + (rand () & 3),
1.0, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorMA (ent->old_origin, len, vec, ent->old_origin);
pscale = pscalenext;
}
}
void
R_SlightBloodTrail_QF (entity_t *ent)
{
float dist, maxlen, origlen, percent, pscale, pscalenext;
float len = 0.0;
int j;
vec3_t vec, porg, pvel;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
pscale = 1.5 + qfrandom (7.5);
while (len < maxlen) {
pscalenext = 1.5 + qfrandom (7.5);
dist = (pscale + pscalenext) * 1.5;
for (j = 0; j < 3; j++) {
pvel[j] = (qfrandom (12.0) - 6.0);
porg[j] = ent->old_origin[j] + qfrandom (3.0) - 1.5;
}
percent = len * origlen;
pvel[2] -= percent * 40;
particle_new (pt_grav, part_tex_smoke, porg, pscale, pvel,
r_realtime + 1.5 - percent * 1.5, 68 + (rand () & 3),
0.75, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorMA (ent->old_origin, len, vec, ent->old_origin);
pscale = pscalenext;
}
}
void
R_WizTrail_QF (entity_t *ent)
{
float maxlen, origlen, percent;
float dist = 3.0, len = 0.0;
static int tracercount;
vec3_t subtract, vec, pvel;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
VectorScale (vec, maxlen - dist, subtract);
while (len < maxlen) {
percent = len * origlen;
tracercount++;
if (tracercount & 1) {
pvel[0] = 30.0 * vec[1];
pvel[1] = 30.0 * -vec[0];
} else {
pvel[0] = 30.0 * -vec[1];
pvel[1] = 30.0 * vec[0];
}
pvel[2] = 0.0;
particle_new (pt_flame, part_tex_smoke, ent->old_origin,
2.0 + qfrandom (1.0) - percent * 2.0, pvel,
r_realtime + 0.5 - percent * 0.5, 52 + (rand () & 4),
1.0 - percent * 0.125, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_FlameTrail_QF (entity_t *ent)
{
float maxlen, origlen, percent;
float dist = 3.0, len = 0.0;
static int tracercount;
vec3_t subtract, vec, pvel;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
VectorScale (vec, maxlen - dist, subtract);
while (len < maxlen) {
percent = len * origlen;
tracercount++;
if (tracercount & 1) {
pvel[0] = 30.0 * vec[1];
pvel[1] = 30.0 * -vec[0];
} else {
pvel[0] = 30.0 * -vec[1];
pvel[1] = 30.0 * vec[0];
}
pvel[2] = 0.0;
particle_new (pt_flame, part_tex_smoke, ent->old_origin,
2.0 + qfrandom (1.0) - percent * 2.0, pvel,
r_realtime + 0.5 - percent * 0.5, 234,
1.0 - percent * 0.125, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_VoorTrail_QF (entity_t *ent)
{
float maxlen, origlen, percent;
float dist = 3.0, len = 0.0;
int j;
vec3_t subtract, vec, porg;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
VectorScale (vec, maxlen - dist, subtract);
while (len < maxlen) {
percent = len * origlen;
for (j = 0; j < 3; j++)
porg[j] = ent->old_origin[j] + qfrandom (16.0) - 8.0;
particle_new (pt_static, part_tex_dot, porg, 1.0 + qfrandom (1.0),
vec3_origin, r_realtime + 0.3 - percent * 0.3,
9 * 16 + 8 + (rand () & 3), 1.0, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_GlowTrail_QF (entity_t *ent, int glow_color)
{
float maxlen, origlen, percent;
float dist = 3.0, len = 0.0;
int rnd;
vec3_t org, subtract, vec;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
VectorScale (vec, (maxlen - dist), subtract);
while (len < maxlen) {
percent = len * origlen;
rnd = rand ();
org[0] = ent->old_origin[0] + ((rnd >> 12) & 7) * (5.0/7.0) - 2.5;
org[1] = ent->old_origin[1] + ((rnd >> 9) & 7) * (5.0/7.0) - 2.5;
org[2] = ent->old_origin[2] + ((rnd >> 6) & 7) * (5.0/7.0) - 2.5;
particle_new (pt_smoke, part_tex_dot, org, 1.0, vec3_origin,
r_realtime + 2.0 - percent * 0.2, glow_color, 1.0, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_ParticleExplosion_EE (const vec3_t org)
{
/*
R_NewExplosion (org);
*/
if (numparticles >= r_maxparticles)
return;
particle_new_random (pt_smokecloud, part_tex_smoke, org, 4, 30, 8,
r_realtime + 5.0, rand () & 255,
0.5 + qfrandom (0.25), 0.0);
}
void
R_TeleportSplash_EE (const vec3_t org)
{
float vel;
int rnd, i, j, k;
int l = 896;
vec3_t dir, porg, pvel;
if (numparticles + l >= r_maxparticles) {
return;
} // else if (numparticles + l >= r_maxparticles) {
// l = r_maxparticles - numparticles;
// }
for (k = -24; k < 32; k += 4) {
dir[2] = k * 8;
for (i = -16; i < 16; i += 4) {
dir[1] = i * 8;
for (j = -16; j < 16; j += 4) {
dir[0] = j * 8;
rnd = rand ();
porg[0] = org[0] + i + (rnd & 3);
porg[1] = org[1] + j + ((rnd >> 2) & 3);
porg[2] = org[2] + k + ((rnd >> 4) & 3);
VectorNormalize (dir);
vel = 50 + ((rnd >> 6) & 63);
VectorScale (dir, vel, pvel);
particle_new (pt_grav, part_tex_spark, porg, 0.6, pvel,
(r_realtime + 0.2 + (rand () & 15) * 0.01),
qfrandom (1.0), 1.0, 0.0);
}
}
}
}
void
R_RocketTrail_EE (entity_t *ent)
{
float dist, maxlen, origlen, percent, pscale, pscalenext;
float len = 0.0;
vec3_t subtract, vec;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
pscale = 1.5 + qfrandom (1.5);
while (len < maxlen) {
pscalenext = 1.5 + qfrandom (1.5);
dist = (pscale + pscalenext) * 3.0;
percent = len * origlen;
particle_new (pt_smoke, part_tex_smoke, ent->old_origin,
pscale + percent * 4.0, vec3_origin,
r_realtime + 2.0 - percent * 2.0,
rand () & 255,
0.5 + qfrandom (0.125) - percent * 0.40, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorScale (vec, len, subtract);
VectorAdd (ent->old_origin, subtract, ent->old_origin);
pscale = pscalenext;
}
}
void
R_GrenadeTrail_EE (entity_t *ent)
{
float dist, maxlen, origlen, percent, pscale, pscalenext;
float len = 0.0;
vec3_t subtract, vec;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
origlen = r_frametime / maxlen;
pscale = 6.0 + qfrandom (7.0);
while (len < maxlen) {
pscalenext = 6.0 + qfrandom (7.0);
dist = (pscale + pscalenext) * 2.0;
percent = len * origlen;
particle_new (pt_smoke, part_tex_smoke, ent->old_origin,
pscale + percent * 4.0, vec3_origin,
r_realtime + 2.0 - percent * 2.0,
rand () & 255,
0.625 + qfrandom (0.125) - percent * 0.40, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorScale (vec, len, subtract);
VectorAdd (ent->old_origin, subtract, ent->old_origin);
pscale = pscalenext;
}
}
void
R_ParticleExplosion_ID (const vec3_t org)
{
unsigned int i;
unsigned int j = 1024;
ptype_t ptype;
if (numparticles >= r_maxparticles)
return;
else if (numparticles + j >= r_maxparticles)
j = r_maxparticles - numparticles;
for (i = 0; i < j; i++) {
if (i & 1)
ptype = pt_explode;
else
ptype = pt_explode2;
particle_new_random (ptype, part_tex_dot, org, 16, 1.0, 256,
r_realtime + 5.0, ramp1[0], 1.0, rand () & 3);
}
}
void
R_BlobExplosion_ID (const vec3_t org)
{
unsigned int i;
unsigned int j = 1024;
if (numparticles >= r_maxparticles)
return;
else if (numparticles + j >= r_maxparticles)
j = r_maxparticles - numparticles;
for (i = 0; i < j >> 1; i++) {
particle_new_random (pt_blob, part_tex_dot, org, 12, 1.0, 256,
r_realtime + 1.0 + (rand () & 8) * 0.05,
66 + rand () % 6, 1.0, 0.0);
}
for (i = 0; i < j / 2; i++) {
particle_new_random (pt_blob2, part_tex_dot, org, 12, 1.0, 256,
r_realtime + 1.0 + (rand () & 8) * 0.05,
150 + rand () % 6, 1.0, 0.0);
}
}
void
R_RunParticleEffect_ID (const vec3_t org, const vec3_t dir, int color,
int count)
{
float scale;
unsigned int i, j;
vec3_t porg;
if (numparticles >= r_maxparticles)
return;
if (count > 130) // calculate scale before clipping to particle max
scale = 3.0;
else if (count > 20)
scale = 2.0;
else
scale = 1.0;
if (numparticles + count >= r_maxparticles)
count = r_maxparticles - numparticles;
for (i = 0; i < count; i++) {
for (j = 0; j < 3; j++) {
porg[j] = org[j] + scale * ((rand () & 15) - 8);
}
// Note that ParseParticleEffect handles (dir * 15)
particle_new (pt_grav, part_tex_dot, porg, 1.0, dir,
r_realtime + 0.1 * (rand () % 5),
(color & ~7) + (rand () & 7), 1.0, 0.0);
}
}
void
R_BloodPuffEffect_ID (const vec3_t org, int count)
{
R_RunParticleEffect_ID (org, vec3_origin, 73, count);
}
void
R_GunshotEffect_ID (const vec3_t org, int count)
{
R_RunParticleEffect_ID (org, vec3_origin, 0, count);
}
void
R_LightningBloodEffect_ID (const vec3_t org)
{
R_RunParticleEffect_ID (org, vec3_origin, 225, 50);
}
void
R_SpikeEffect_ID (const vec3_t org)
{
R_RunParticleEffect_ID (org, vec3_origin, 0, 10);
}
void
R_SuperSpikeEffect_ID (const vec3_t org)
{
R_RunParticleEffect_ID (org, vec3_origin, 0, 20);
}
void
R_KnightSpikeEffect_ID (const vec3_t org)
{
R_RunParticleEffect_ID (org, vec3_origin, 226, 20);
}
void
R_WizSpikeEffect_ID (const vec3_t org)
{
R_RunParticleEffect_ID (org, vec3_origin, 20, 30);
}
void
R_LavaSplash_ID (const vec3_t org)
{
float vel;
int rnd, i, j;
int k = 256;
vec3_t dir, porg, pvel;
if (numparticles + k >= r_maxparticles) {
return;
} // else if (numparticles + k >= r_maxparticles) {
// k = r_maxparticles - numparticles;
// }
dir[2] = 256;
for (i = -128; i < 128; i += 16) {
for (j = -128; j < 128; j += 16) {
rnd = rand ();
dir[0] = j + (rnd & 7);
dir[1] = i + ((rnd >> 6) & 7);
porg[0] = org[0] + dir[0];
porg[1] = org[1] + dir[1];
porg[2] = org[2] + ((rnd >> 9) & 63);
VectorNormalize (dir);
rnd = rand ();
vel = 50 + (rnd & 63);
VectorScale (dir, vel, pvel);
particle_new (pt_grav, part_tex_dot, porg, 1.0, pvel,
r_realtime + 2 + ((rnd >> 7) & 31) * 0.02,
224 + ((rnd >> 12) & 7), 1.0, 0.0);
}
}
}
void
R_TeleportSplash_ID (const vec3_t org)
{
float vel;
int rnd, i, j, k;
int l = 896;
vec3_t dir, pdir, porg, pvel;
if (numparticles + l >= r_maxparticles) {
return;
} // else if (numparticles + l >= r_maxparticles) {
// l = r_maxparticles - numparticles;
// }
for (k = -24; k < 32; k += 4) {
dir[2] = k * 8;
for (i = -16; i < 16; i += 4) {
dir[1] = i * 8;
for (j = -16; j < 16; j += 4) {
dir[0] = j * 8;
VectorCopy (dir, pdir);
VectorNormalize (pdir);
rnd = rand ();
porg[0] = org[0] + i + (rnd & 3);
porg[1] = org[1] + j + ((rnd >> 2) & 3);
porg[2] = org[2] + k + ((rnd >> 4) & 3);
vel = 50 + ((rnd >> 6) & 63);
VectorScale (pdir, vel, pvel);
particle_new (pt_grav, part_tex_dot, porg, 1.0, pvel,
(r_realtime + 0.2 + (rand () & 7) * 0.02),
(7 + ((rnd >> 12) & 7)), 1.0, 0.0);
}
}
}
}
void
R_RocketTrail_ID (entity_t *ent)
{
float maxlen;
float dist = 3.0, len = 0.0;
int ramp, rnd;
vec3_t org, subtract, vec;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
VectorScale (vec, (maxlen - dist), subtract);
while (len < maxlen) {
rnd = rand ();
org[0] = ent->old_origin[0] + ((rnd >> 12) & 7) * (5.0/7.0) - 2.5;
org[1] = ent->old_origin[1] + ((rnd >> 9) & 7) * (5.0/7.0) - 2.5;
org[2] = ent->old_origin[2] + ((rnd >> 6) & 7) * (5.0/7.0) - 2.5;
ramp = rnd & 3;
particle_new (pt_fire, part_tex_dot, org, 1.0, vec3_origin,
r_realtime + 2.0, ramp3[ramp], 1.0, ramp);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_GrenadeTrail_ID (entity_t *ent)
{
float maxlen;
float dist = 3.0, len = 0.0;
unsigned int ramp, rnd;
vec3_t org, subtract, vec;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
VectorScale (vec, maxlen - dist, subtract);
while (len < maxlen) {
rnd = rand ();
org[0] = ent->old_origin[0] + ((rnd >> 12) & 7) * (5.0/7.0) - 2.5;
org[1] = ent->old_origin[1] + ((rnd >> 9) & 7) * (5.0/7.0) - 2.5;
org[2] = ent->old_origin[2] + ((rnd >> 6) & 7) * (5.0/7.0) - 2.5;
ramp = (rnd & 3) + 2;
particle_new (pt_fire, part_tex_dot, org, 1.0, vec3_origin,
r_realtime + 2.0, ramp3[ramp], 1.0, ramp);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_BloodTrail_ID (entity_t *ent)
{
float maxlen;
float dist = 3.0, len = 0.0;
unsigned int rnd;
vec3_t subtract, vec, porg;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
VectorScale (vec, maxlen - dist, subtract);
while (len < maxlen) {
rnd = rand ();
porg[0] = ent->old_origin[0] + ((rnd >> 12) & 7) * (5.0/7.0) - 2.5;
porg[1] = ent->old_origin[1] + ((rnd >> 9) & 7) * (5.0/7.0) - 2.5;
porg[2] = ent->old_origin[2] + ((rnd >> 6) & 7) * (5.0/7.0) - 2.5;
particle_new (pt_grav, part_tex_dot, porg, 1.0, vec3_origin,
r_realtime + 2.0, 67 + (rnd & 3), 1.0, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_SlightBloodTrail_ID (entity_t *ent)
{
float maxlen;
float dist = 6.0, len = 0.0;
unsigned int rnd;
vec3_t subtract, vec, porg;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
VectorScale (vec, maxlen - dist, subtract);
while (len < maxlen) {
rnd = rand ();
porg[0] = ent->old_origin[0] + ((rnd >> 12) & 7) * (5.0/7.0) - 2.5;
porg[1] = ent->old_origin[1] + ((rnd >> 9) & 7) * (5.0/7.0) - 2.5;
porg[2] = ent->old_origin[2] + ((rnd >> 6) & 7) * (5.0/7.0) - 2.5;
particle_new (pt_grav, part_tex_dot, porg, 1.0, vec3_origin,
r_realtime + 1.5, 67 + (rnd & 3), 1.0, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_WizTrail_ID (entity_t *ent)
{
float maxlen;
float dist = 3.0, len = 0.0;
static int tracercount;
vec3_t subtract, vec, pvel;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
VectorScale (vec, maxlen - dist, subtract);
while (len < maxlen) {
tracercount++;
if (tracercount & 1) {
pvel[0] = 30.0 * vec[1];
pvel[1] = 30.0 * -vec[0];
} else {
pvel[0] = 30.0 * -vec[1];
pvel[1] = 30.0 * vec[0];
}
pvel[2] = 0.0;
particle_new (pt_static, part_tex_dot, ent->old_origin, 1.0, pvel,
r_realtime + 0.5, 52 + ((tracercount & 4) << 1), 1.0,
0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_FlameTrail_ID (entity_t *ent)
{
float maxlen;
float dist = 3.0, len = 0.0;
static int tracercount;
vec3_t subtract, vec, pvel;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
VectorScale (vec, maxlen - dist, subtract);
while (len < maxlen) {
tracercount++;
if (tracercount & 1) {
pvel[0] = 30.0 * vec[1];
pvel[1] = 30.0 * -vec[0];
} else {
pvel[0] = 30.0 * -vec[1];
pvel[1] = 30.0 * vec[0];
}
pvel[2] = 0.0;
particle_new (pt_static, part_tex_dot, ent->old_origin, 1.0, pvel,
r_realtime + 0.5, 230 + ((tracercount & 4) << 1), 1.0,
0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_VoorTrail_ID (entity_t *ent)
{
float maxlen;
float dist = 3.0, len = 0.0;
unsigned int rnd;
vec3_t subtract, vec, porg;
if (numparticles >= r_maxparticles)
return;
VectorSubtract (ent->origin, ent->old_origin, vec);
maxlen = VectorNormalize (vec);
VectorScale (vec, maxlen - dist, subtract);
while (len < maxlen) {
rnd = rand ();
porg[0] = ent->old_origin[0] + ((rnd >> 3) & 15) - 7.5;
porg[1] = ent->old_origin[1] + ((rnd >> 7) & 15) - 7.5;
porg[2] = ent->old_origin[2] + ((rnd >> 11) & 15) - 7.5;
particle_new (pt_static, part_tex_dot, porg, 1.0, vec3_origin,
r_realtime + 0.3, 9 * 16 + 8 + (rnd & 3), 1.0, 0.0);
if (numparticles >= r_maxparticles)
break;
len += dist;
VectorAdd (ent->old_origin, subtract, ent->old_origin);
}
}
void
R_DrawParticles (void)
{
unsigned char *at;
float grav, fast_grav, minparticledist, scale,
time_125, time_25, time_40, time_55, time2, time4, time5,
time10, time15, time30, time50;
int activeparticles, maxparticle, j, k;
unsigned int vacount;
varray_t2f_c4ub_v3f_t *VA;
particle_t *part;
vec3_t up_scale, right_scale, up_right_scale, down_right_scale;
if (!r_particles->int_val)
return;
qfglBindTexture (GL_TEXTURE_2D, part_tex);
// LordHavoc: particles should not affect zbuffer
qfglDepthMask (GL_FALSE);
qfglInterleavedArrays (GL_T2F_C4UB_V3F, 0, particleVertexArray);
grav = (fast_grav = r_frametime * 800.0) * 0.05;
time_125 = r_frametime * 0.125;
time_25= r_frametime * 0.25;
time_40 = r_frametime * 0.40;
time_55 = r_frametime * 0.55;
time2 = r_frametime * 2.0;
time4 = r_frametime * 4.0;
time5 = r_frametime * 5.0;
time10 = r_frametime * 10.0;
time15 = r_frametime * 15.0;
time30 = r_frametime * 30.0;
time50 = r_frametime * 50.0;
minparticledist = DotProduct (r_refdef.vieworg, vpn) +
r_particles_nearclip->value;
activeparticles = 0;
vacount = 0;
VA = particleVertexArray;
maxparticle = -1;
j = 0;
for (k = 0, part = particles; k < numparticles; k++, part++) {
// Don't render particles too close to us.
// Note, we must still do physics and such on them.
if (!(DotProduct (part->org, vpn) < minparticledist)) {
at = (byte *) &d_8to24table[(byte) part->color];
VA[0].color[0] = at[0];
VA[0].color[1] = at[1];
VA[0].color[2] = at[2];
VA[0].color[3] = part->alpha * 255;
memcpy (VA[1].color, VA[0].color, sizeof(VA[0].color));
memcpy (VA[2].color, VA[0].color, sizeof(VA[0].color));
memcpy (VA[3].color, VA[0].color, sizeof(VA[0].color));
switch (part->tex) {
case 0:
VA[0].texcoord[0] = 0.0;
VA[0].texcoord[1] = 0.0;
VA[1].texcoord[0] = 0.5;
VA[1].texcoord[1] = 0.0;
VA[2].texcoord[0] = 0.5;
VA[2].texcoord[1] = 0.5;
VA[3].texcoord[0] = 0.0;
VA[3].texcoord[1] = 0.5;
break;
case 1:
VA[0].texcoord[0] = 0.5;
VA[0].texcoord[1] = 0.0;
VA[1].texcoord[0] = 1.0;
VA[1].texcoord[1] = 0.0;
VA[2].texcoord[0] = 1.0;
VA[2].texcoord[1] = 0.5;
VA[3].texcoord[0] = 0.5;
VA[3].texcoord[1] = 0.5;
break;
case 2:
VA[0].texcoord[0] = 0.0;
VA[0].texcoord[1] = 0.5;
VA[1].texcoord[0] = 0.5;
VA[1].texcoord[1] = 0.5;
VA[2].texcoord[0] = 0.5;
VA[2].texcoord[1] = 1.0;
VA[3].texcoord[0] = 0.0;
VA[3].texcoord[1] = 1.0;
break;
}
scale = part->scale;
VectorScale (vup, scale, up_scale);
VectorScale (vright, scale, right_scale);
VectorAdd (right_scale, up_scale, up_right_scale);
VectorSubtract (right_scale, up_scale, down_right_scale);
VectorAdd (part->org, down_right_scale, VA[0].vertex);
VectorSubtract (part->org, up_right_scale, VA[1].vertex);
VectorSubtract (part->org, down_right_scale, VA[2].vertex);
VectorAdd (part->org, up_right_scale, VA[3].vertex);
VA += 4;
vacount += 4;
if (vacount + 4 > pVAsize) {
qfglDrawElements (GL_QUADS, vacount, GL_UNSIGNED_INT,
pVAindices);
vacount = 0;
VA = particleVertexArray;
}
}
VectorMA (part->org, r_frametime, part->vel, part->org);
switch (part->type) {
case pt_static:
break;
case pt_grav:
part->vel[2] -= grav;
break;
case pt_fire:
part->ramp += time5;
if (part->ramp >= 6) {
part->die = -1;
break;
}
part->color = ramp3[(int) part->ramp];
part->alpha = (6.0 - part->ramp) / 6.0;
part->vel[2] += grav;
break;
case pt_explode:
part->ramp += time10;
if (part->ramp >= 8) {
part->die = -1;
break;
}
part->color = ramp1[(int) part->ramp];
VectorMA (part->vel, time4, part->vel, part->vel);
part->vel[2] -= grav;
break;
case pt_explode2:
part->ramp += time15;
if (part->ramp >= 8) {
part->die = -1;
break;
}
part->color = ramp2[(int) part->ramp];
VectorMA (part->vel, -r_frametime, part->vel, part->vel);
part->vel[2] -= grav;
break;
case pt_blob:
VectorMA (part->vel, time4, part->vel, part->vel);
part->vel[2] -= grav;
break;
case pt_blob2:
part->vel[0] -= part->vel[0] * time4;
part->vel[1] -= part->vel[1] * time4;
part->vel[2] -= grav;
break;
case pt_smoke:
if ((part->alpha -= time_40) <= 0.0)
part->die = -1;
part->scale += time4;
// part->org[2] += time30;
break;
case pt_smokecloud:
if ((part->alpha -= time_55) <= 0.0) {
part->die = -1;
break;
}
part->scale += time50;
part->org[2] += time30;
break;
case pt_bloodcloud:
if ((part->alpha -= time_25) <= 0.0) {
part->die = -1;
break;
}
part->scale += time4;
part->vel[2] -= grav;
break;
case pt_fallfadespark:
if ((part->alpha -= r_frametime) <= 0.0)
part->die = -1;
part->vel[2] -= fast_grav;
break;
case pt_flame:
if ((part->alpha -= time_125) <= 0.0)
part->die = -1;
part->scale -= time2;
break;
default:
Con_DPrintf ("unhandled particle type %d\n", part->type);
break;
}
// LordHavoc: immediate removal of unnecessary particles (must be done
// to ensure compactor below operates properly in all cases)
if (part->die < r_realtime)
freeparticles[j++] = part;
else {
maxparticle = k;
activeparticles++;
}
}
if (vacount)
qfglDrawElements (GL_QUADS, vacount, GL_UNSIGNED_INT, pVAindices);
k = 0;
while (maxparticle >= activeparticles) {
*freeparticles[k++] = particles[maxparticle--];
while (maxparticle >= activeparticles &&
particles[maxparticle].die <= r_realtime)
maxparticle--;
}
numparticles = activeparticles;
qfglColor3ubv (color_white);
qfglDepthMask (GL_TRUE);
}
void
r_easter_eggs_f (cvar_t *var)
{
if (easter_eggs) {
if (easter_eggs->int_val) {
R_ParticleExplosion = R_ParticleExplosion_EE;
R_TeleportSplash = R_TeleportSplash_EE;
R_RocketTrail = R_RocketTrail_EE;
R_GrenadeTrail = R_GrenadeTrail_EE;
} else if (r_particles_style) {
if (r_particles_style->int_val) {
R_ParticleExplosion = R_ParticleExplosion_QF;
R_TeleportSplash = R_TeleportSplash_QF;
R_RocketTrail = R_RocketTrail_QF;
R_GrenadeTrail = R_GrenadeTrail_QF;
} else {
R_ParticleExplosion = R_ParticleExplosion_ID;
R_TeleportSplash = R_TeleportSplash_ID;
R_RocketTrail = R_RocketTrail_ID;
R_GrenadeTrail = R_GrenadeTrail_ID;
}
}
}
}
void
r_particles_style_f (cvar_t *var)
{
if (r_particles_style) {
if (r_particles_style->int_val) {
R_BlobExplosion = R_BlobExplosion_QF;
R_ParticleExplosion = R_ParticleExplosion_QF;
R_ParticleExplosion2 = R_ParticleExplosion2_QF;
R_LavaSplash = R_LavaSplash_QF;
R_TeleportSplash = R_TeleportSplash_QF;
R_BloodPuffEffect = R_BloodPuffEffect_QF;
R_GunshotEffect = R_GunshotEffect_QF;
R_LightningBloodEffect = R_LightningBloodEffect_QF;
R_RunParticleEffect = R_RunParticleEffect_QF;
R_SpikeEffect = R_SpikeEffect_QF;
R_SuperSpikeEffect = R_SuperSpikeEffect_QF;
R_KnightSpikeEffect = R_KnightSpikeEffect_QF;
R_WizSpikeEffect = R_WizSpikeEffect_QF;
R_RocketTrail = R_RocketTrail_QF;
R_GrenadeTrail = R_GrenadeTrail_QF;
R_BloodTrail = R_BloodTrail_QF;
R_SlightBloodTrail = R_SlightBloodTrail_QF;
R_WizTrail = R_WizTrail_QF;
R_FlameTrail = R_FlameTrail_QF;
R_VoorTrail = R_VoorTrail_QF;
R_GlowTrail = R_GlowTrail_QF;
} else {
R_BlobExplosion = R_BlobExplosion_ID;
R_ParticleExplosion = R_ParticleExplosion_ID;
R_ParticleExplosion2 = R_ParticleExplosion2_QF;
R_LavaSplash = R_LavaSplash_ID;
R_TeleportSplash = R_TeleportSplash_ID;
R_BloodPuffEffect = R_BloodPuffEffect_ID;
R_GunshotEffect = R_GunshotEffect_ID;
R_LightningBloodEffect = R_LightningBloodEffect_ID;
R_RunParticleEffect = R_RunParticleEffect_ID;
R_SpikeEffect = R_SpikeEffect_ID;
R_SuperSpikeEffect = R_SuperSpikeEffect_ID;
R_KnightSpikeEffect = R_KnightSpikeEffect_ID;
R_WizSpikeEffect = R_WizSpikeEffect_ID;
R_RocketTrail = R_RocketTrail_ID;
R_GrenadeTrail = R_GrenadeTrail_ID;
R_BloodTrail = R_BloodTrail_ID;
R_SlightBloodTrail = R_SlightBloodTrail_ID;
R_WizTrail = R_WizTrail_ID;
R_FlameTrail = R_FlameTrail_ID;
R_VoorTrail = R_VoorTrail_ID;
R_GlowTrail = R_GlowTrail_QF;
}
}
}
void
R_ParticleFunctionInit (void)
{
r_particles_style_f (r_particles_style);
r_easter_eggs_f (easter_eggs);
}
void
R_Particles_Init_Cvars (void)
{
R_ParticleFunctionInit ();
}
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