mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-23 21:02:50 +00:00
873 lines
17 KiB
C
873 lines
17 KiB
C
/*
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sw_rpart.c
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Software renderer particle effects code.
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((unused)) const char rcsid[] =
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"$Id$";
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#include <stdlib.h>
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#include "QF/console.h"
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#include "QF/cvar.h"
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#include "QF/qargs.h"
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#include "QF/quakefs.h"
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#include "QF/render.h"
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#include "compat.h"
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#include "r_cvar.h"
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#include "r_dynamic.h"
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#include "r_local.h"
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int ramp1[8] = { 0x6f, 0x6d, 0x6b, 0x69, 0x67, 0x65, 0x63, 0x61 };
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int ramp2[8] = { 0x6f, 0x6e, 0x6d, 0x6c, 0x6b, 0x6a, 0x68, 0x66 };
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int ramp3[8] = { 0x6d, 0x6b, 6, 5, 4, 3 };
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void
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R_InitParticles (void)
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{
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}
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void
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R_ClearParticles (void)
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{
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unsigned int i;
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free_particles = &particles[0];
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active_particles = NULL;
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for (i = 0; i < r_maxparticles; i++)
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particles[i].next = &particles[i + 1];
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if (r_maxparticles)
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particles[r_maxparticles - 1].next = NULL;
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}
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void
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R_ReadPointFile_f (void)
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{
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QFile *f;
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vec3_t org;
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int c, r;
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particle_t *p;
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char name[MAX_OSPATH];
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// FIXME snprintf (name, sizeof (name), "maps/%s.pts", sv.name);
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QFS_FOpenFile (name, &f);
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if (!f) {
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Con_Printf ("couldn't open %s\n", name);
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return;
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}
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Con_Printf ("Reading %s...\n", name);
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c = 0;
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for (;;) {
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char buf[64];
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Qgets (f, buf, sizeof (buf));
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r = sscanf (buf, "%f %f %f\n", &org[0], &org[1], &org[2]);
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if (r != 3)
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break;
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c++;
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if (!free_particles) {
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Con_Printf ("Not enough free particles\n");
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break;
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}
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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p->die = 99999;
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p->color = (-c) & 15;
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p->type = pt_static;
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VectorZero (p->vel);
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VectorCopy (org, p->org);
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}
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Qclose (f);
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Con_Printf ("%i points read\n", c);
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}
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static void
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R_ParticleExplosion_QF (const vec3_t org)
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{
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int i, j;
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particle_t *p;
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if (!r_particles->int_val)
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return;
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for (i = 0; i < 1024; i++) {
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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p->die = r_realtime + 5;
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p->color = ramp1[0];
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p->ramp = rand () & 3;
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if (i & 1)
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p->type = pt_explode;
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else
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p->type = pt_explode2;
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for (j = 0; j < 3; j++) {
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p->org[j] = org[j] + ((rand () % 32) - 16);
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p->vel[j] = (rand () % 512) - 256;
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}
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}
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}
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static void
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R_ParticleExplosion2_QF (const vec3_t org, int colorStart, int colorLength)
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{
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int i, j;
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int colorMod = 0;
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particle_t *p;
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for (i=0; i<512; i++) {
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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p->die = r_realtime + 0.3;
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p->color = colorStart + (colorMod % colorLength);
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colorMod++;
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p->type = pt_blob;
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for (j=0 ; j<3 ; j++) {
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p->org[j] = org[j] + ((rand()%32)-16);
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p->vel[j] = (rand()%512)-256;
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}
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}
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}
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static void
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R_BlobExplosion_QF (const vec3_t org)
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{
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int i, j;
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particle_t *p;
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if (!r_particles->int_val)
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return;
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for (i = 0; i < 1024; i++) {
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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p->die = r_realtime + 1 + (rand () & 8) * 0.05;
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if (i & 1) {
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p->type = pt_blob;
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p->color = 66 + rand () % 6;
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} else {
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p->type = pt_blob2;
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p->color = 150 + rand () % 6;
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}
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for (j = 0; j < 3; j++) {
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p->org[j] = org[j] + ((rand () % 32) - 16);
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p->vel[j] = (rand () % 512) - 256;
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}
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}
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}
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static void
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R_RunParticleEffect_QF (const vec3_t org, const vec3_t dir, int color,
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int count)
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{
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int i, j;
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particle_t *p;
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if (!r_particles->int_val)
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return;
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for (i = 0; i < count; i++) {
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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p->die = r_realtime + 0.1 * (rand () % 5);
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p->color = (color & ~7) + (rand () & 7);
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p->type = pt_grav;
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for (j = 0; j < 3; j++) {
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p->org[j] = org[j] + ((rand () & 15) - 8);
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p->vel[j] = dir[j]; // + (rand()%300)-150;
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}
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}
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}
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static void
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R_SpikeEffect_QF (const vec3_t org)
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{
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R_RunParticleEffect_QF (org, vec3_origin, 0, 10);
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}
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static void
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R_SuperSpikeEffect_QF (const vec3_t org)
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{
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R_RunParticleEffect (org, vec3_origin, 0, 20);
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}
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static void
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R_KnightSpikeEffect_QF (const vec3_t org)
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{
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R_RunParticleEffect_QF (org, vec3_origin, 226, 20);
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}
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static void
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R_WizSpikeEffect_QF (const vec3_t org)
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{
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R_RunParticleEffect_QF (org, vec3_origin, 20, 30);
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}
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static void
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R_BloodPuffEffect_QF (const vec3_t org, int count)
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{
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R_RunParticleEffect_QF (org, vec3_origin, 73, count);
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}
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static void
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R_GunshotEffect_QF (const vec3_t org, int count)
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{
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R_RunParticleEffect_QF (org, vec3_origin, 0, count);
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}
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static void
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R_LightningBloodEffect_QF (const vec3_t org)
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{
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R_RunParticleEffect_QF (org, vec3_origin, 225, 50);
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}
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static void
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R_LavaSplash_QF (const vec3_t org)
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{
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int i, j, k;
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particle_t *p;
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float vel;
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vec3_t dir;
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if (!r_particles->int_val)
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return;
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for (i = -16; i < 16; i++)
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for (j = -16; j < 16; j++)
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for (k = 0; k < 1; k++) {
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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p->die = r_realtime + 2 + (rand () & 31) * 0.02;
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p->color = 224 + (rand () & 7);
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p->type = pt_grav;
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dir[0] = j * 8 + (rand () & 7);
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dir[1] = i * 8 + (rand () & 7);
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dir[2] = 256;
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p->org[0] = org[0] + dir[0];
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p->org[1] = org[1] + dir[1];
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p->org[2] = org[2] + (rand () & 63);
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VectorNormalize (dir);
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vel = 50 + (rand () & 63);
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VectorScale (dir, vel, p->vel);
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}
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}
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static void
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R_TeleportSplash_QF (const vec3_t org)
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{
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int i, j, k;
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particle_t *p;
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float vel;
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vec3_t dir;
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if (!r_particles->int_val)
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return;
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for (i = -16; i < 16; i += 4)
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for (j = -16; j < 16; j += 4)
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for (k = -24; k < 32; k += 4) {
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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p->die = r_realtime + 0.2 + (rand () & 7) * 0.02;
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p->color = 7 + (rand () & 7);
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p->type = pt_grav;
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dir[0] = j * 8;
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dir[1] = i * 8;
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dir[2] = k * 8;
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p->org[0] = org[0] + i + (rand () & 3);
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p->org[1] = org[1] + j + (rand () & 3);
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p->org[2] = org[2] + k + (rand () & 3);
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VectorNormalize (dir);
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vel = 50 + (rand () & 63);
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VectorScale (dir, vel, p->vel);
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}
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}
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static void
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R_DarkFieldParticles_ID (const entity_t *ent)
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{
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int i, j, k;
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unsigned int rnd;
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float vel;
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particle_t *p;
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vec3_t dir, org;
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if (!r_particles->int_val)
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return;
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org[0] = ent->origin[0];
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org[1] = ent->origin[1];
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org[2] = ent->origin[2];
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for (i = -16; i < 16; i += 8) {
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for (j = -16; j < 16; j += 8) {
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for (k = 0; k < 32; k += 8) {
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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rnd = rand ();
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p->die = r_realtime + 0.2 + (rnd & 7) * 0.02;
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p->color = 150 + rand () % 6;
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p->type = pt_slowgrav;
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dir[0] = j * 8;
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dir[1] = i * 8;
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dir[2] = k * 8;
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p->org[0] = org[0] + i + ((rnd >> 3) & 3);
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p->org[1] = org[1] + j + ((rnd >> 5) & 3);
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p->org[2] = org[2] + k + ((rnd >> 7) & 3);
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VectorNormalize (dir);
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vel = 50 + ((rnd >> 9) & 63);
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VectorScale (dir, vel, p->vel);
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}
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}
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}
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}
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static vec3_t avelocities[NUMVERTEXNORMALS];
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static void
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R_EntityParticles_ID (const entity_t *ent)
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{
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int i;
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float angle, sp, sy, cp, cy; // cr, sr
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float beamlength = 16.0, dist = 64.0;
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particle_t *p;
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vec3_t forward;
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if (!r_particles->int_val)
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return;
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if (!avelocities[0][0]) {
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for (i = 0; i < NUMVERTEXNORMALS * 3; i++)
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avelocities[0][i] = (rand () & 255) * 0.01;
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}
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for (i = 0; i < NUMVERTEXNORMALS; i++) {
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angle = r_realtime * avelocities[i][0];
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cy = cos (angle);
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sy = sin (angle);
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angle = r_realtime * avelocities[i][1];
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cp = cos (angle);
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sp = sin (angle);
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// Next 3 lines results aren't currently used, may be in future. --Despair
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// angle = r_realtime * avelocities[i][2];
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// sr = sin (angle);
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// cr = cos (angle);
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forward[0] = cp * cy;
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forward[1] = cp * sy;
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forward[2] = -sp;
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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p->die = r_realtime + 0.01;
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p->color = 0x6f;
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p->type = pt_explode;
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p->org[0] = ent->origin[0] + r_avertexnormals[i][0] * dist +
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forward[0] * beamlength;
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p->org[1] = ent->origin[1] + r_avertexnormals[i][1] * dist +
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forward[1] * beamlength;
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p->org[2] = ent->origin[2] + r_avertexnormals[i][2] * dist +
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forward[2] * beamlength;
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}
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}
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static void
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R_RocketTrail_QF (const entity_t *ent)
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{
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float len;
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int j;
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particle_t *p;
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vec3_t old_origin, vec;
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if (!r_particles->int_val)
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return;
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VectorCopy (ent->old_origin, old_origin);
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VectorSubtract (ent->origin, old_origin, vec);
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len = VectorNormalize (vec);
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while (len > 0) {
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len -= 3;
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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VectorZero (p->vel);
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p->die = r_realtime + 2;
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p->ramp = (rand () & 3);
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p->color = ramp3[(int) p->ramp];
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p->type = pt_fire;
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for (j = 0; j < 3; j++)
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p->org[j] = old_origin[j] + ((rand () % 6) - 3);
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VectorAdd (old_origin, vec, old_origin);
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}
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}
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static void
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R_GrenadeTrail_QF (const entity_t *ent)
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{
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float len;
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int j;
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particle_t *p;
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vec3_t old_origin, vec;
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if (!r_particles->int_val)
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return;
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VectorCopy (ent->old_origin, old_origin);
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VectorSubtract (ent->origin, old_origin, vec);
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len = VectorNormalize (vec);
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while (len > 0) {
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len -= 3;
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if (!free_particles)
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return;
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p = free_particles;
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free_particles = p->next;
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p->next = active_particles;
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active_particles = p;
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VectorZero (p->vel);
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p->die = r_realtime + 2;
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p->ramp = (rand () & 3) + 2;
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p->color = ramp3[(int) p->ramp];
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p->type = pt_fire;
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for (j = 0; j < 3; j++)
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p->org[j] = old_origin[j] + ((rand () % 6) - 3);
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VectorAdd (old_origin, vec, old_origin);
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}
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}
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static void
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R_BloodTrail_QF (const entity_t *ent)
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{
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float len;
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int j;
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particle_t *p;
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vec3_t old_origin, vec;
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if (!r_particles->int_val)
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return;
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VectorCopy (ent->old_origin, old_origin);
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VectorSubtract (ent->origin, old_origin, vec);
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len = VectorNormalize (vec);
|
|
|
|
while (len > 0) {
|
|
len -= 3;
|
|
|
|
if (!free_particles)
|
|
return;
|
|
p = free_particles;
|
|
free_particles = p->next;
|
|
p->next = active_particles;
|
|
active_particles = p;
|
|
|
|
VectorZero (p->vel);
|
|
|
|
p->die = r_realtime + 2;
|
|
p->type = pt_slowgrav;
|
|
p->color = 67 + (rand () & 3);
|
|
for (j = 0; j < 3; j++)
|
|
p->org[j] = old_origin[j] + ((rand () % 6) - 3);
|
|
break;
|
|
|
|
VectorAdd (old_origin, vec, old_origin);
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_SlightBloodTrail_QF (const entity_t *ent)
|
|
{
|
|
float len;
|
|
int j;
|
|
particle_t *p;
|
|
vec3_t old_origin, vec;
|
|
|
|
if (!r_particles->int_val)
|
|
return;
|
|
|
|
VectorCopy (ent->old_origin, old_origin);
|
|
VectorSubtract (ent->origin, old_origin, vec);
|
|
len = VectorNormalize (vec);
|
|
|
|
while (len > 0) {
|
|
len -= 6;
|
|
|
|
if (!free_particles)
|
|
return;
|
|
p = free_particles;
|
|
free_particles = p->next;
|
|
p->next = active_particles;
|
|
active_particles = p;
|
|
|
|
VectorZero (p->vel);
|
|
|
|
p->die = r_realtime + 2;
|
|
p->type = pt_slowgrav;
|
|
p->color = 67 + (rand () & 3);
|
|
for (j = 0; j < 3; j++)
|
|
p->org[j] = old_origin[j] + ((rand () % 6) - 3);
|
|
|
|
VectorAdd (old_origin, vec, old_origin);
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_WizTrail_QF (const entity_t *ent)
|
|
{
|
|
float len;
|
|
particle_t *p;
|
|
vec3_t old_origin, vec;
|
|
|
|
if (!r_particles->int_val)
|
|
return;
|
|
|
|
VectorCopy (ent->old_origin, old_origin);
|
|
VectorSubtract (ent->origin, old_origin, vec);
|
|
len = VectorNormalize (vec);
|
|
|
|
while (len > 0) {
|
|
static int tracercount;
|
|
|
|
len -= 3;
|
|
|
|
if (!free_particles)
|
|
return;
|
|
p = free_particles;
|
|
free_particles = p->next;
|
|
p->next = active_particles;
|
|
active_particles = p;
|
|
|
|
p->die = r_realtime + 0.5;
|
|
p->type = pt_static;
|
|
p->color = 52 + ((tracercount & 4) << 1);
|
|
|
|
tracercount++;
|
|
|
|
VectorCopy (old_origin, p->org);
|
|
if (tracercount & 1) {
|
|
p->vel[0] = 30.0 * vec[1];
|
|
p->vel[1] = 30.0 * -vec[0];
|
|
} else {
|
|
p->vel[0] = 30.0 * -vec[1];
|
|
p->vel[1] = 30.0 * vec[0];
|
|
}
|
|
p->vel[2] = 0.0;
|
|
|
|
VectorAdd (old_origin, vec, old_origin);
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_FlameTrail_QF (const entity_t *ent)
|
|
{
|
|
float len;
|
|
particle_t *p;
|
|
vec3_t old_origin, vec;
|
|
|
|
if (!r_particles->int_val)
|
|
return;
|
|
|
|
VectorCopy (ent->old_origin, old_origin);
|
|
VectorSubtract (ent->origin, old_origin, vec);
|
|
len = VectorNormalize (vec);
|
|
|
|
while (len > 0) {
|
|
static int tracercount;
|
|
|
|
len -= 3;
|
|
|
|
if (!free_particles)
|
|
return;
|
|
p = free_particles;
|
|
free_particles = p->next;
|
|
p->next = active_particles;
|
|
active_particles = p;
|
|
|
|
p->die = r_realtime + 0.5;
|
|
p->type = pt_static;
|
|
p->color = 230 + ((tracercount & 4) << 1);
|
|
|
|
tracercount++;
|
|
|
|
VectorCopy (old_origin, p->org);
|
|
if (tracercount & 1) {
|
|
p->vel[0] = 30 * vec[1];
|
|
p->vel[1] = 30 * -vec[0];
|
|
} else {
|
|
p->vel[0] = 30 * -vec[1];
|
|
p->vel[1] = 30 * vec[0];
|
|
}
|
|
p->vel[2] = 0.0;
|
|
|
|
VectorAdd (old_origin, vec, old_origin);
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_VoorTrail_QF (const entity_t *ent)
|
|
{
|
|
float len;
|
|
int j;
|
|
particle_t *p;
|
|
vec3_t old_origin, vec;
|
|
|
|
if (!r_particles->int_val)
|
|
return;
|
|
|
|
VectorCopy (ent->old_origin, old_origin);
|
|
VectorSubtract (ent->origin, old_origin, vec);
|
|
len = VectorNormalize (vec);
|
|
|
|
while (len > 0) {
|
|
len -= 3;
|
|
|
|
if (!free_particles)
|
|
return;
|
|
p = free_particles;
|
|
free_particles = p->next;
|
|
p->next = active_particles;
|
|
active_particles = p;
|
|
|
|
VectorZero (p->vel);
|
|
|
|
p->die = r_realtime + 0.3;
|
|
p->type = pt_static;
|
|
p->color = 9 * 16 + 8 + (rand () & 3);
|
|
for (j = 0; j < 3; j++)
|
|
p->org[j] = old_origin[j] + ((rand () & 15) - 8);
|
|
|
|
VectorAdd (old_origin, vec, old_origin);
|
|
}
|
|
}
|
|
|
|
void
|
|
R_DrawParticles (void)
|
|
{
|
|
int i;
|
|
float dvel, frametime, grav, time1, time2, time3;
|
|
particle_t *p, **particle;
|
|
|
|
D_StartParticles ();
|
|
|
|
VectorScale (vright, xscaleshrink, r_pright);
|
|
VectorScale (vup, yscaleshrink, r_pup);
|
|
VectorCopy (vpn, r_ppn);
|
|
|
|
frametime = r_frametime;
|
|
time3 = frametime * 15;
|
|
time2 = frametime * 10; // 15;
|
|
time1 = frametime * 5;
|
|
grav = frametime * r_gravity * 0.05;
|
|
dvel = 4 * frametime;
|
|
|
|
for (particle = &active_particles; *particle;) {
|
|
if ((*particle)->die < r_realtime) {
|
|
p = (*particle)->next;
|
|
(*particle)->next = free_particles;
|
|
free_particles = (*particle);
|
|
(*particle) = p;
|
|
} else {
|
|
p = *particle;
|
|
particle = &(*particle)->next;
|
|
|
|
D_DrawParticle (p);
|
|
|
|
p->org[0] += p->vel[0] * frametime;
|
|
p->org[1] += p->vel[1] * frametime;
|
|
p->org[2] += p->vel[2] * frametime;
|
|
|
|
switch (p->type) {
|
|
case pt_static:
|
|
break;
|
|
case pt_fire:
|
|
p->ramp += time1;
|
|
if (p->ramp >= 6)
|
|
p->die = -1;
|
|
else
|
|
p->color = ramp3[(int) p->ramp];
|
|
p->vel[2] += grav;
|
|
break;
|
|
case pt_explode:
|
|
p->ramp += time2;
|
|
if (p->ramp >= 8)
|
|
p->die = -1;
|
|
else
|
|
p->color = ramp1[(int) p->ramp];
|
|
for (i = 0; i < 3; i++)
|
|
p->vel[i] += p->vel[i] * dvel;
|
|
p->vel[2] -= grav;
|
|
break;
|
|
case pt_explode2:
|
|
p->ramp += time3;
|
|
if (p->ramp >= 8)
|
|
p->die = -1;
|
|
else
|
|
p->color = ramp2[(int) p->ramp];
|
|
for (i = 0; i < 3; i++)
|
|
p->vel[i] -= p->vel[i] * frametime;
|
|
p->vel[2] -= grav;
|
|
break;
|
|
case pt_blob:
|
|
for (i = 0; i < 3; i++)
|
|
p->vel[i] += p->vel[i] * dvel;
|
|
p->vel[2] -= grav;
|
|
break;
|
|
case pt_blob2:
|
|
for (i = 0; i < 2; i++)
|
|
p->vel[i] -= p->vel[i] * dvel;
|
|
p->vel[2] -= grav;
|
|
break;
|
|
case pt_slowgrav:
|
|
case pt_grav:
|
|
p->vel[2] -= grav;
|
|
break;
|
|
default:
|
|
Con_DPrintf ("unhandled particle type %d\n", p->type);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
D_EndParticles ();
|
|
}
|
|
|
|
void
|
|
r_easter_eggs_f (cvar_t *var)
|
|
{
|
|
}
|
|
|
|
void
|
|
r_particles_style_f (cvar_t *var)
|
|
{
|
|
}
|
|
|
|
static void
|
|
R_ParticleFunctionInit (void)
|
|
{
|
|
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_DarkFieldParticles = R_DarkFieldParticles_ID;
|
|
R_EntityParticles = R_EntityParticles_ID;
|
|
|
|
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;
|
|
}
|
|
|
|
void
|
|
R_Particles_Init_Cvars (void)
|
|
{
|
|
R_ParticleFunctionInit ();
|
|
}
|