mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-27 06:34:11 +00:00
2c07108c65
r_local.h, r_shared.h, client.h and render.h at the same time (couldn't get away from that:/) verly likely to be lots of breakage (eg, player and eye models are NOT checksummed atm), but everything builds
747 lines
18 KiB
C
747 lines
18 KiB
C
/*
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gl_dyn_part.c
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OpenGL 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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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include "QF/cmd.h"
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#include "QF/compat.h"
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#include "QF/console.h"
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#include "QF/qargs.h"
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#include "QF/sys.h"
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#include "QF/varrays.h"
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#include "client.h"
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#include "glquake.h"
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#include "host.h"
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#include "render.h"
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#include "r_dynamic.h"
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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 cvar_t *cl_max_particles;
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extern int part_tex_dot;
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extern int part_tex_spark;
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extern int part_tex_smoke[8];
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extern int part_tex_smoke_ring[8];
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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, vec3_t up, vec3_t right)
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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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VectorScale (up, 1.5, part->up);
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VectorScale (right, 1.5, part->right);
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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,
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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, vec3_origin, vec3_origin);
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}
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/*
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R_MaxParticlesCheck
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Misty-chan: Dynamically change the maximum amount of particles on the fly.
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Thanks to a LOT of help from Taniwha, Deek, Mercury, Lordhavoc, and
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lots of others.
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*/
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void
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R_MaxParticlesCheck (cvar_t *var)
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{
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/*
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Catchall. If the user changed the setting to a number less than zero
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*or* if we had a wacky cfg get past the init code check, this will
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make sure we don't have problems. Also note that grabbing the
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var->int_val is IMPORTANT:
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Prevents a segfault since if we grabbed the int_val of
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cl_max_particles we'd sig11 right here at startup.
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*/
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r_numparticles = max(var->int_val, 0);
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// Be very careful the next time we do something like this.
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// calloc/free are IMPORTANT and the compiler doesn't know when we
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// do bad things with them.
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free (particles);
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free (freeparticles);
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particles = (particle_t *)
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calloc (r_numparticles, sizeof (particle_t));
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freeparticles = (particle_t **)
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calloc (r_numparticles, sizeof (particle_t*));
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R_ClearParticles();
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}
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void
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R_Particles_Init_Cvars (void)
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{
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// Misty-chan: This is a cvar that does callbacks. Whenever it
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// changes, it calls the function R_MaxParticlesCheck and therefore
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// is very nifty.
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Cvar_Get ("cl_max_particles", "2048", CVAR_ARCHIVE, R_MaxParticlesCheck,
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"Maximum amount of particles to display. No maximum, minimum is 0, although it's best to use r_particles 0 instead.");
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}
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void
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R_ClearParticles (void)
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{
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numparticles = 0;
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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 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, 1.5, vec3_origin,
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99999, (-c) & 15, 255, vec3_origin, vec3_origin)) {
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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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void
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R_ParticleExplosion (vec3_t org)
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{
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if (!r_particles->int_val)
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return;
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particle_new_random (pt_smokecloud, part_tex_smoke[rand () & 7], org, 4, 30,
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8, cl.time + 5, (rand () & 7) + 8,
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128 + (rand () & 63));
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}
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void
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R_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength)
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{
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int i;
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int colorMod = 0;
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if (!r_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, (cl.time + 0.3), (colorStart + (colorMod % colorLength)), 255);
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colorMod++;
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}
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}
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void
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R_BlobExplosion (vec3_t org)
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{
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int i;
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if (!r_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, 12, 2, 256,
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(cl.time + 1 + (rand () & 8) * 0.05),
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(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, 12, 2, 256,
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(cl.time + 1 + (rand () & 8) * 0.05),
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(150 + rand () % 6), 255);
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}
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}
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static void
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R_RunSparkEffect (vec3_t org, int count, int ofuzz)
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{
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if (!r_particles->int_val)
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return;
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particle_new (pt_smokecloud, part_tex_smoke[rand () & 7], org,
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(ofuzz / 8) * .75, vec3_origin, cl.time + 99,
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12 + (rand () & 3), 96, vec3_origin, vec3_origin);
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while (count--)
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particle_new_random (pt_fallfadespark, part_tex_spark, org, ofuzz * .75,
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1, 96, cl.time + 5, ramp[rand () % 6],
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lhrandom (0, 255));
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}
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static void
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R_RunGunshotEffect (vec3_t org, int count)
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{
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int scale;
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if (!r_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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/*
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static void
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R_BloodPuff (vec3_t org, int count)
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{
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if (!r_particles->int_val)
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return;
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particle_new (pt_bloodcloud, part_tex_smoke[rand () & 7], org, 9,
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vec3_origin, cl.time + 99, 68 + (rand () & 3), 128,
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vec3_origin, vec3_origin);
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}
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*/
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void
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R_RunPuffEffect (vec3_t org, byte type, byte count)
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{
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if (!r_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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}
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}
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void
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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 (!r_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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for (j = 0; j < 3; j++) {
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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, 1.5, vec3_origin,
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(cl.time + 0.1 * (rand () % 5)),
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(color & ~7) + (rand () & 7), 255, vec3_origin, vec3_origin);
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}
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}
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void
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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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void
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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 (!r_particles->int_val)
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return;
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for (i = -8; i < 8; i++) {
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for (j = -8; j < 8; j++) {
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dir[0] = j * 16 + (rand () & 7);
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dir[1] = i * 16 + (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, 3, pvel,
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(cl.time + 2 + (rand () & 31) * 0.02),
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(224 + (rand () & 7)), 193, vec3_origin, vec3_origin);
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}
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}
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}
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void
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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 (!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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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_spark, porg, 0.6, pvel,
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(cl.time + 0.2 + (rand () & 7) * 0.02),
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(7 + (rand () & 7)), 255, vec3_origin, vec3_origin);
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}
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}
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void
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R_RocketTrail (int type, entity_t *ent)
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{
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vec3_t vec, subtract;
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float len, dist;
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int j, ptex;
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ptype_t ptype;
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vec3_t porg, pvel, up, right;
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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 (ent->msg_origins[1], ent->origin, ent);
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if (!r_particles->int_val)
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return;
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VectorSubtract (ent->origin, ent->msg_origins[1], vec);
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len = VectorNormalize (vec);
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while (len > 0) {
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VectorCopy (vec3_origin, up);
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VectorCopy (vec3_origin, right);
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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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palpha = 255;
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pcolor = 0;
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pscale = 6;
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dist = 40;
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switch (type) {
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case 0: // rocket trail
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pdie = cl.time + 60;
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// ptype = pt_smokering; // Mercury's Rings
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ptype = pt_smoke;
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pscale = lhrandom (6, 8);
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// pcolor = (rand () & 255); // Misty-chan's Easter Egg
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pcolor = (rand () & 3) + 12;
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palpha = 128 + (rand () & 31);
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// VectorVectors(vec, right, up); // Mercury's Rings
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VectorCopy (ent->msg_origins[1], porg);
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// ptex = part_tex_smoke_ring[rand () & 7]; // Mercury's Rings
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ptex = part_tex_smoke[rand () & 7];
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break;
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case 1: // grenade trail
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ptype = pt_smoke;
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pscale = lhrandom (7, 10);
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// pcolor = (rand () & 255); // Misty-chan's Easter Egg
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pcolor = (rand () & 3);
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palpha = 128 + (rand () & 31);
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VectorCopy (ent->msg_origins[1], porg);
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ptex = part_tex_smoke[rand () & 7];
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break;
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case 2: // blood
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pscale = 5;
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case 4: // slight blood
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pscale += lhrandom (1, 4);
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ptex = part_tex_smoke[rand () & 7];
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pcolor = 68 + (rand () & 3);
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for (j = 0; j < 3; j++) {
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pvel[j] = lhrandom (-3, 3) * type;
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porg[j] = ent->msg_origins[1][j] + lhrandom (-1.5, 1.5);
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}
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ptype = pt_grav;
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break;
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case 6: // voor trail
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// Use smoke ring effects here, once merged with nq? --Despair
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dist = 3;
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pcolor = 9 * 16 + 8 + (rand () & 3);
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ptype = pt_static;
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pscale = lhrandom (.75, 1.5);
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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] = ent->msg_origins[1][j] + lhrandom (-8, 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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dist = 3;
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pdie = cl.time + 0.5;
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ptype = pt_static;
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pscale = lhrandom (1.5, 3);
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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 (ent->msg_origins[1], porg);
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if (tracercount & 1) {
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pvel[0] = 30 * vec[1];
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pvel[1] = 30 * -vec[0];
|
|
} else {
|
|
pvel[0] = 30 * -vec[1];
|
|
pvel[1] = 30 * vec[0];
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
VectorScale (vec, min(dist, len), subtract);
|
|
VectorAdd (ent->msg_origins[1], subtract, ent->msg_origins[1]);
|
|
len -= dist;
|
|
|
|
particle_new (ptype, ptex, porg, pscale, pvel, pdie, pcolor, palpha,
|
|
up, right);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
R_DrawParticles (void)
|
|
{
|
|
byte i;
|
|
float grav, fast_grav, dvel;
|
|
float minparticledist;
|
|
unsigned char *at;
|
|
byte alpha;
|
|
float scale;
|
|
particle_t *part;
|
|
vec3_t up, right, o_up, o_right;
|
|
vec3_t up_scale, right_scale, up_right_scale;
|
|
int activeparticles, maxparticle, j, k;
|
|
|
|
// LordHavoc: particles should not affect zbuffer
|
|
glDepthMask (GL_FALSE);
|
|
|
|
VectorScale (vup, 1.5, o_up);
|
|
VectorScale (vright, 1.5, o_right);
|
|
|
|
varray[0].texcoord[0] = 0; varray[0].texcoord[1] = 1;
|
|
varray[1].texcoord[0] = 0; varray[1].texcoord[1] = 0;
|
|
varray[2].texcoord[0] = 1; varray[2].texcoord[1] = 0;
|
|
varray[3].texcoord[0] = 1; varray[3].texcoord[1] = 1;
|
|
|
|
grav = (fast_grav = host_frametime * 800) * 0.05;
|
|
dvel = 4 * host_frametime;
|
|
|
|
minparticledist = DotProduct (r_refdef.vieworg, vpn) + 32.0f;
|
|
|
|
activeparticles = 0;
|
|
maxparticle = -1;
|
|
j = 0;
|
|
|
|
for (k = 0, part = particles; k < numparticles; k++, part++) {
|
|
// LordHavoc: this is probably no longer necessary, as it is
|
|
// checked at the end, but could still happen on weird particle
|
|
// effects, left for safety...
|
|
if (part->die <= cl.time) {
|
|
freeparticles[j++] = part;
|
|
continue;
|
|
}
|
|
maxparticle = k;
|
|
activeparticles++;
|
|
|
|
// Don't render particles too close to us.
|
|
// Note, we must still do physics and such on them.
|
|
if (!(DotProduct (part->org, vpn) < minparticledist) &&
|
|
r_particles->int_val) {
|
|
at = (byte *) & d_8to24table[(byte) part->color];
|
|
alpha = part->alpha;
|
|
|
|
#define mVectorCompare(x, y) ((x[0] == y[0]) && (x[1] == y[1]) && (x[2] == y[2]))
|
|
if (mVectorCompare(part->up, part->right)) {
|
|
memcpy(up, o_up, sizeof(up));
|
|
memcpy(right, o_right, sizeof(right));
|
|
} else {
|
|
memcpy(up, part->up, sizeof(up));
|
|
memcpy(right, part->right, sizeof(right));
|
|
}
|
|
|
|
if (lighthalf) {
|
|
varray[0].color[0] = (float) ((int) at[0] >> 1) / 255;
|
|
varray[0].color[1] = (float) ((int) at[1] >> 1) / 255;
|
|
varray[0].color[2] = (float) ((int) at[2] >> 1) / 255;
|
|
} else {
|
|
varray[0].color[0] = (float) at[0] / 255;
|
|
varray[0].color[1] = (float) at[1] / 255;
|
|
varray[0].color[2] = (float) at[2] / 255;
|
|
}
|
|
varray[0].color[3] = (float) alpha / 255;
|
|
|
|
memcpy(varray[1].color, varray[0].color, sizeof(varray[0].color));
|
|
memcpy(varray[2].color, varray[0].color, sizeof(varray[0].color));
|
|
memcpy(varray[3].color, varray[0].color, sizeof(varray[0].color));
|
|
|
|
scale = part->scale;
|
|
|
|
up_scale[0] = up[0] * scale;
|
|
up_scale[1] = up[1] * scale;
|
|
up_scale[2] = up[2] * scale;
|
|
|
|
right_scale[0] = right[0] * scale;
|
|
right_scale[1] = right[1] * scale;
|
|
right_scale[2] = right[2] * scale;
|
|
|
|
up_right_scale[0] = (up[0] + right[0]) * scale;
|
|
up_right_scale[1] = (up[1] + right[1]) * scale;
|
|
up_right_scale[2] = (up[2] + right[2]) * scale;
|
|
|
|
varray[0].vertex[0] = part->org[0] + up_right_scale[0];
|
|
varray[0].vertex[1] = part->org[1] + up_right_scale[1];
|
|
varray[0].vertex[2] = part->org[2] + up_right_scale[2];
|
|
|
|
varray[1].vertex[0] = part->org[0] - up_scale[0] + right_scale[0];
|
|
varray[1].vertex[1] = part->org[1] - up_scale[1] + right_scale[1];
|
|
varray[1].vertex[2] = part->org[2] - up_scale[2] + right_scale[2];
|
|
|
|
varray[2].vertex[0] = part->org[0] - up_right_scale[0];
|
|
varray[2].vertex[1] = part->org[1] - up_right_scale[1];
|
|
varray[2].vertex[2] = part->org[2] - up_right_scale[2];
|
|
|
|
varray[3].vertex[0] = part->org[0] + up_scale[0] - right_scale[0];
|
|
varray[3].vertex[1] = part->org[1] + up_scale[1] - right_scale[1];
|
|
varray[3].vertex[2] = part->org[2] + up_scale[2] - right_scale[2];
|
|
|
|
glBindTexture (GL_TEXTURE_2D, part->tex);
|
|
glDrawArrays (GL_QUADS, 0, 4);
|
|
}
|
|
|
|
for (i = 0; i < 3; i++)
|
|
part->org[i] += part->vel[i] * host_frametime;
|
|
|
|
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:
|
|
if ((part->alpha -= host_frametime * 90) < 1)
|
|
part->die = -1;
|
|
part->scale += host_frametime * 6;
|
|
// part->org[2] += host_frametime * 30;
|
|
break;
|
|
case pt_smokering:
|
|
if ((part->alpha -= host_frametime * 130) < 1)
|
|
part->die = -1;
|
|
part->scale += host_frametime * 10;
|
|
// part->org[2] += host_frametime * 30;
|
|
break;
|
|
case pt_smokecloud:
|
|
if ((part->alpha -= host_frametime * 128) < 1)
|
|
{
|
|
part->die = -1;
|
|
break;
|
|
}
|
|
part->scale += host_frametime * 60;
|
|
part->org[2] += host_frametime * 30;
|
|
break;
|
|
case pt_bloodcloud:
|
|
if ((part->alpha -= host_frametime * 64) < 1)
|
|
{
|
|
part->die = -1;
|
|
break;
|
|
}
|
|
part->scale += host_frametime * 4;
|
|
part->vel[2] -= grav;
|
|
break;
|
|
case pt_fadespark:
|
|
if ((part->alpha -= host_frametime * 256) < 1)
|
|
part->die = -1;
|
|
part->vel[2] -= grav;
|
|
break;
|
|
case pt_fadespark2:
|
|
if ((part->alpha -= host_frametime * 512) < 1)
|
|
part->die = -1;
|
|
part->vel[2] -= grav;
|
|
break;
|
|
case pt_fallfadespark:
|
|
if ((part->alpha -= host_frametime * 256) < 1)
|
|
part->die = -1;
|
|
part->vel[2] -= fast_grav;
|
|
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 <= cl.time)
|
|
freeparticles[j++] = part;
|
|
}
|
|
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);
|
|
}
|