mirror of
https://git.code.sf.net/p/quake/newtree
synced 2024-11-14 00:21:27 +00:00
5d07b61d7a
Lots of changes, more then I can cover quickly. Things now look, different, and probally much better! Note, SOFTWARE RENDERING IS BROKEN with this commit!
687 lines
14 KiB
C
687 lines
14 KiB
C
/*
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gl_dyn_part.c
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Particle system!
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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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$Id$
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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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#include "glquake.h"
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#include "quakedef.h"
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#include "cmd.h"
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#include "qargs.h"
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#include "console.h"
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#include "sys.h"
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#include "r_dynamic.h"
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#include <stdlib.h>
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#define MAX_PARTICLES 2048 // default max # of particles at one
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// time
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#define ABSOLUTE_MIN_PARTICLES 512 // no fewer than this no matter what's
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// on the command line
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typedef enum {
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pt_static, pt_grav, pt_blob, pt_blob2,
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pt_smoke, pt_smokecloud, pt_bloodcloud,
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pt_fadespark, pt_fadespark2, pt_fallfadespark
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} ptype_t;
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typedef struct particle_s
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{
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// driver-usable fields
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vec3_t org;
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int tex;
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float color;
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float alpha;
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float scale;
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// drivers never touch the following fields
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struct particle_s *next;
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vec3_t vel;
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float ramp;
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float die;
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ptype_t type;
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} particle_t;
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static particle_t *particles, **freeparticles;
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static short r_numparticles, numparticles;
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extern qboolean lighthalf;
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extern void GDT_Init();
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extern int part_tex_smoke[8];
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extern int part_tex_dot;
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int ramp[8] = {0x6d, 0x6b, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01};
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inline particle_t *
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particle_new(ptype_t type, int texnum, vec3_t org, float scale, vec3_t vel,
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float die, byte color, byte alpha)
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{
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particle_t *part;
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if (numparticles >= r_numparticles) {
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//Con_Printf("FAILED PARTICLE ALLOC!\n");
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return NULL;
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}
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part = &particles[numparticles++];
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part->type = type;
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VectorCopy(org, part->org);
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VectorCopy(vel, part->vel);
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part->die = die;
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part->color = color;
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part->alpha = alpha;
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part->tex = texnum;
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part->scale = scale;
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return part;
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}
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inline particle_t *
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particle_new_random(ptype_t type, int texnum, vec3_t org, int org_fuzz,
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float scale, int vel_fuzz, float die, byte color, byte alpha)
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{
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vec3_t porg, pvel;
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int j;
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for (j=0 ; j<3 ; j++) {
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if (org_fuzz)
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porg[j] = lhrandom(-org_fuzz, org_fuzz) + org[j];
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if (vel_fuzz)
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pvel[j] = lhrandom(-vel_fuzz, vel_fuzz);
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}
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return particle_new(type, texnum, porg, scale, pvel, die, color, alpha);
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}
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/*
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===============
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R_InitParticles
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===============
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*/
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void R_InitParticles (void)
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{
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int i;
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i = COM_CheckParm ("-particles");
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if (i) {
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r_numparticles = max(ABSOLUTE_MIN_PARTICLES, atoi(com_argv[i+1]));
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} else {
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r_numparticles = MAX_PARTICLES;
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}
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particles = (particle_t *)
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Hunk_AllocName (r_numparticles * sizeof(particle_t), "particles");
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freeparticles = (void *)
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Hunk_AllocName (r_numparticles * sizeof(particle_t), "particles");
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GDT_Init();
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}
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/*
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===============
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R_ClearParticles
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===============
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*/
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void R_ClearParticles (void)
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{
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numparticles = 0;
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}
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void 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 r;
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int c;
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char name[MAX_OSPATH], *mapname, *t1;
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mapname = strdup(cl.worldmodel->name);
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if (!mapname)
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Sys_Error("Can't duplicate mapname!");
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t1 = strrchr(mapname, '.');
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if (!t1)
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Sys_Error("Can't find .!");
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t1[0] = '\0';
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snprintf (name, sizeof(name), "%s.pts", mapname);
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free(mapname);
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COM_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 (!particle_new(pt_static, part_tex_dot, org, 2, vec3_origin, 99999,
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(-c)&15, 255)) {
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Con_Printf ("Not enough free particles\n");
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break;
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}
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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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/*
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===============
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R_ParticleExplosion
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===============
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*/
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void R_ParticleExplosion (vec3_t org)
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{
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if (!gl_particles->int_val)
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return;
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particle_new_random(pt_smokecloud, part_tex_smoke[rand()&7], org, 8, 30,
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8, cl.time + 5, (rand()&7) + 8, 128 + (rand()&63));
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}
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/*
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===============
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R_BlobExplosion
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===============
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*/
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void R_BlobExplosion (vec3_t org)
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{
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int i;
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if (!gl_particles->int_val)
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return;
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for (i=0 ; i<512 ; i++) {
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particle_new_random(pt_blob, part_tex_dot, org, 16, 2, 256,
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(cl.time + 1 + (rand()&8)*0.05), (66 + rand()%6), 255);
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}
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for (i=0 ; i<512 ; i++) {
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particle_new_random(pt_blob2, part_tex_dot, org, 16, 2, 256,
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(cl.time + 1 + (rand()&8)*0.05), (150 + rand()%6), 255);
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}
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}
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static void R_RunSparkEffect (vec3_t org, int count, int ofuzz)
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{
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if (!gl_particles->int_val)
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return;
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particle_new (pt_smokecloud, part_tex_smoke[rand()&7], org, ofuzz / 8,
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vec3_origin, cl.time + 99, 12 + (rand()&3), 96);
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while (count--)
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particle_new_random (pt_fallfadespark, part_tex_dot, org, ofuzz, 1, 96,
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cl.time + 5, ramp[rand()%6], lhrandom(0, 255));
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}
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static void R_RunGunshotEffect (vec3_t org, int count)
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{
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int scale;
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if (!gl_particles->int_val)
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return;
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if (count > 6)
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scale = 3;
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else
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scale = 2;
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R_RunSparkEffect(org, count * 10, 8 * scale);
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return;
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}
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static void R_BloodPuff (vec3_t org, int count)
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{
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if (!gl_particles->int_val)
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return;
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particle_new(pt_bloodcloud, part_tex_smoke[rand()&7], org, 12, vec3_origin,
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cl.time + 99, 68+(rand()&3), 128);
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}
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/*
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===============
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R_RunPuffEffect
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===============
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*/
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void R_RunPuffEffect (vec3_t org, int type, int count)
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{
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if (!gl_particles->int_val)
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return;
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switch (type) {
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case TE_GUNSHOT:
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R_RunGunshotEffect (org, count);
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break;
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case TE_BLOOD:
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R_BloodPuff (org, count);
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break;
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case TE_LIGHTNINGBLOOD:
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R_BloodPuff (org, 5+(rand()&1));
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break;
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}
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}
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/*
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===============
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R_RunParticleEffect
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===============
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*/
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void R_RunParticleEffect (vec3_t org, int color, int count)
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{
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int i, j, scale;
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vec3_t porg;
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if (!gl_particles->int_val)
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return;
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if (count > 130)
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scale = 3;
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else if (count > 20)
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scale = 2;
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else
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scale = 1;
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for (i=0 ; i<count ; i++)
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{
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for (j=0 ; j<3 ; j++)
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{
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porg[j] = org[j] + scale*((rand()&15)-8);
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}
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particle_new(pt_grav, part_tex_dot, porg, 2, vec3_origin,
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(cl.time + 0.1*(rand()%5)), (color&~7) + (rand()&7), 255);
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}
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}
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void R_RunSpikeEffect (vec3_t org, byte type)
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{
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switch (type) {
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case TE_SPIKE:
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R_RunSparkEffect(org, 5, 8);
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break;
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case TE_SUPERSPIKE:
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R_RunSparkEffect(org, 10, 8);
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break;
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case TE_KNIGHTSPIKE:
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R_RunSparkEffect(org, 10, 8);
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break;
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case TE_WIZSPIKE:
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R_RunSparkEffect(org, 15, 16);
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break;
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}
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}
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/*
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===============
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R_LavaSplash
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===============
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*/
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void R_LavaSplash (vec3_t org)
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{
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int i, j;
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float vel;
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vec3_t dir, porg, pvel;
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if (!gl_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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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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porg[0] = org[0] + dir[0];
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porg[1] = org[1] + dir[1];
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porg[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, pvel);
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particle_new(pt_grav, part_tex_dot, porg, 2, pvel,
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(cl.time + 2 + (rand()&31) * 0.02), (224 + (rand()&7)), 255);
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}
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}
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}
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/*
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===============
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R_TeleportSplash
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===============
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*/
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void R_TeleportSplash (vec3_t org)
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{
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int i, j, k;
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float vel;
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vec3_t dir, porg, pvel;
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if (!gl_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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{
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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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porg[0] = org[0] + i + (rand()&3);
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porg[1] = org[1] + j + (rand()&3);
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porg[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, pvel);
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particle_new(pt_grav, part_tex_dot, porg, 2, pvel,
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(cl.time + 0.2 + (rand()&7) * 0.02),
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(7 + (rand()&7)), 255);
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}
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}
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void R_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent)
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{
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vec3_t vec;
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float len;
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int j, ptex;
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ptype_t ptype;
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vec3_t porg, pvel;
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float pdie, pscale;
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byte palpha, pcolor;
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if (type == 0)
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R_AddFire (start, end, ent);
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if (!gl_particles->int_val)
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return;
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VectorSubtract (end, start, vec);
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len = VectorNormalize (vec);
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while (len > 0)
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{
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VectorCopy (vec3_origin, pvel);
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pdie = cl.time + 2;
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ptype = pt_static;
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ptex = part_tex_dot;
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pcolor = 0;
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pscale = 1;
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palpha = 255;
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switch (type) {
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case 0: // rocket trail
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pcolor = (rand()&3)+12;
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goto common_rocket_gren_trail;
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case 1: // grenade trail
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pcolor = (rand()&3)+3;
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goto common_rocket_gren_trail;
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common_rocket_gren_trail:
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len -= 4;
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ptex = part_tex_smoke[rand()&7];
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pscale = lhrandom(8, 12);
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palpha = 48 + (rand()&31);
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ptype = pt_smoke;
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pdie = cl.time + 1;
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VectorCopy(start, porg);
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break;
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case 2: // blood
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case 4: // slight blood
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len -= 5;
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ptex = part_tex_dot;
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pscale = 1;
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pcolor = 68 + (rand()&3);
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pdie = cl.time + 2;
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for (j=0 ; j<3 ; j++) {
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pvel[j] = (rand()&15)-8;
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porg[j] = start[j] + ((rand()%3)-2);
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}
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ptype = pt_grav;
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palpha = 255;
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break;
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case 6: // voor trail
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len -= 3;
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pcolor = 9*16 + 8 + (rand()&3);
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ptype = pt_static;
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pscale = lhrandom(1, 2);
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pdie = cl.time + 0.3;
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for (j=0 ; j<3 ; j++)
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porg[j] = start[j] + ((rand()&15)-8);
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break;
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case 3:
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case 5: // tracer
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{
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static int tracercount;
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len -= 3;
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pdie = cl.time + 0.5;
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ptype = pt_static;
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pscale = lhrandom(2, 4);
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if (type == 3)
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pcolor = 52 + ((tracercount&4)<<1);
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else
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pcolor = 230 + ((tracercount&4)<<1);
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tracercount++;
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VectorCopy (start, porg);
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if (tracercount & 1)
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{
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pvel[0] = 30*vec[1];
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pvel[1] = 30*-vec[0];
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}
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else
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{
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pvel[0] = 30*-vec[1];
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pvel[1] = 30*vec[0];
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}
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break;
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}
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}
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VectorAdd (start, vec, start);
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particle_new(ptype, ptex, porg, pscale, pvel, pdie, pcolor, palpha);
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}
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}
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/*
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===============
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R_DrawParticles
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===============
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*/
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void R_DrawParticles (void)
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{
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byte i;
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float grav, fast_grav, dvel;
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float minparticledist;
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unsigned char *at;
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byte alpha;
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vec3_t up, right;
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float scale, scale2;
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particle_t *part;
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int activeparticles, maxparticle, j, k;
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// LordHavoc: particles should not affect zbuffer
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glDepthMask(GL_FALSE);
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VectorScale (vup, 1.5, up);
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VectorScale (vright, 1.5, right);
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grav = (fast_grav = host_frametime * 800) * 0.05;
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dvel = 4*host_frametime;
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minparticledist = DotProduct(r_refdef.vieworg, vpn) + 32.0f;
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activeparticles = 0;
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maxparticle = -1;
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j = 0;
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for (k = 0, part = particles; k < numparticles; k++, part++) {
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if (part->die <= cl.time) {
|
|
freeparticles[j++] = part;
|
|
continue;
|
|
}
|
|
maxparticle = k;
|
|
activeparticles++;
|
|
|
|
if (DotProduct(part->org, vpn) < minparticledist)
|
|
continue;
|
|
|
|
at = (byte *)&d_8to24table[(byte)part->color];
|
|
alpha = part->alpha;
|
|
|
|
if (lighthalf)
|
|
glColor4ub((byte) ((int) at[0] >> 1), (byte) ((int) at[1] >> 1), (byte) ((int) at[2] >> 1), alpha);
|
|
else
|
|
glColor4ub(at[0], at[1], at[2], alpha);
|
|
|
|
scale = part->scale * 0.75;
|
|
scale2 = part->scale * -0.75;
|
|
|
|
glBindTexture(GL_TEXTURE_2D, part->tex);
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f(0,1);
|
|
glVertex3f((part->org[0] + up[0]*scale + right[0]*scale),
|
|
(part->org[1] + up[1]*scale + right[1]*scale),
|
|
(part->org[2] + up[2]*scale + right[2]*scale));
|
|
|
|
glTexCoord2f(0,0);
|
|
glVertex3f((part->org[0] + up[0]*scale2 + right[0]*scale),
|
|
(part->org[1] + up[1]*scale2 + right[1]*scale),
|
|
(part->org[2] + up[2]*scale2 + right[2]*scale));
|
|
|
|
glTexCoord2f(1,0);
|
|
glVertex3f((part->org[0] + up[0]*scale2 + right[0]*scale2),
|
|
(part->org[1] + up[1]*scale2 + right[1]*scale2),
|
|
(part->org[2] + up[2]*scale2 + right[2]*scale2));
|
|
|
|
glTexCoord2f(1,1);
|
|
glVertex3f((part->org[0] + up[0]*scale + right[0]*scale2),
|
|
(part->org[1] + up[1]*scale + right[1]*scale2),
|
|
(part->org[2] + up[2]*scale + right[2]*scale2));
|
|
|
|
glEnd();
|
|
|
|
for (i=0 ; i<3 ; i++)
|
|
part->org[i] += part->vel[i]*host_frametime;
|
|
|
|
|
|
#define alpha_die(p) if (p->alpha < 1) part->die = -1;
|
|
|
|
switch (part->type)
|
|
{
|
|
case pt_static:
|
|
break;
|
|
|
|
case pt_blob:
|
|
for (i=0 ; i<3 ; i++)
|
|
part->vel[i] += part->vel[i]*dvel;
|
|
part->vel[2] -= grav;
|
|
break;
|
|
|
|
case pt_blob2:
|
|
for (i=0 ; i<2 ; i++)
|
|
part->vel[i] -= part->vel[i]*dvel;
|
|
part->vel[2] -= grav;
|
|
break;
|
|
|
|
case pt_grav:
|
|
part->vel[2] -= grav;
|
|
break;
|
|
|
|
case pt_smoke:
|
|
part->scale += host_frametime * 6;
|
|
part->alpha -= host_frametime * 128;
|
|
alpha_die(part);
|
|
break;
|
|
case pt_smokecloud:
|
|
part->scale += host_frametime * 60;
|
|
part->alpha -= host_frametime * 128;
|
|
alpha_die(part);
|
|
break;
|
|
case pt_bloodcloud:
|
|
/*
|
|
if (Mod_PointInLeaf(part->org, cl.worldmodel)->contents != CONTENTS_EMPTY) {
|
|
part->die = -1;
|
|
break;
|
|
}
|
|
*/
|
|
part->scale += host_frametime * 4;
|
|
part->alpha -= host_frametime * 64;
|
|
part->vel[2] -= grav;
|
|
alpha_die(part);
|
|
break;
|
|
case pt_fadespark:
|
|
part->alpha -= host_frametime * 256;
|
|
part->vel[2] -= grav;
|
|
if (part->alpha < 1)
|
|
part->die = -1;
|
|
break;
|
|
case pt_fadespark2:
|
|
part->alpha -= host_frametime * 512;
|
|
part->vel[2] -= grav;
|
|
alpha_die(part);
|
|
break;
|
|
case pt_fallfadespark:
|
|
part->alpha -= host_frametime * 256;
|
|
part->vel[2] -= fast_grav;
|
|
if (part->alpha < 1)
|
|
part->die = -1;
|
|
break;
|
|
}
|
|
}
|
|
k = 0;
|
|
while (maxparticle >= activeparticles) {
|
|
*freeparticles[k++] = particles[maxparticle--];
|
|
while (maxparticle >= activeparticles && particles[maxparticle].die < cl.time)
|
|
maxparticle--;
|
|
}
|
|
numparticles = activeparticles;
|
|
|
|
glColor3ubv(lighthalf_v);
|
|
glDepthMask(GL_TRUE);
|
|
}
|