forked from KolibriOS/kolibrios
801 lines
15 KiB
C
801 lines
15 KiB
C
/*
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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 the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "quakedef.h"
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#include "r_local.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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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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particle_t *active_particles, *free_particles;
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particle_t *particles;
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int r_numparticles;
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vec3_t r_pright, r_pup, r_ppn;
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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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{
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r_numparticles = (int)(Q_atoi(com_argv[i+1]));
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if (r_numparticles < ABSOLUTE_MIN_PARTICLES)
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r_numparticles = ABSOLUTE_MIN_PARTICLES;
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}
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else
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{
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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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}
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#ifdef QUAKE2
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void R_DarkFieldParticles (entity_t *ent)
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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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vec3_t org;
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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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{
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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 = cl.time + 0.2 + (rand()&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 + (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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#endif
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/*
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===============
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R_EntityParticles
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===============
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*/
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#define NUMVERTEXNORMALS 162
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extern float r_avertexnormals[NUMVERTEXNORMALS][3];
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vec3_t avelocities[NUMVERTEXNORMALS];
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float beamlength = 16;
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vec3_t avelocity = {23, 7, 3};
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float partstep = 0.01;
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float timescale = 0.01;
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void R_EntityParticles (entity_t *ent)
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{
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int count;
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int i;
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particle_t *p;
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float angle;
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float sr, sp, sy, cr, cp, cy;
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vec3_t forward;
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float dist;
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dist = 64;
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count = 50;
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if (!avelocities[0][0])
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{
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for (i=0 ; i<NUMVERTEXNORMALS*3 ; i++)
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*(&avelocities[0][0] + i) = (rand()&255) * 0.01;
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}
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for (i=0 ; i<NUMVERTEXNORMALS ; i++)
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{
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angle = cl.time * avelocities[i][0];
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sy = sin(angle);
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cy = cos(angle);
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angle = cl.time * avelocities[i][1];
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sp = sin(angle);
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cp = cos(angle);
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angle = cl.time * 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 = cl.time + 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 + forward[0]*beamlength;
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p->org[1] = ent->origin[1] + r_avertexnormals[i][1]*dist + forward[1]*beamlength;
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p->org[2] = ent->origin[2] + r_avertexnormals[i][2]*dist + forward[2]*beamlength;
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}
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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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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_numparticles ; i++)
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particles[i].next = &particles[i+1];
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particles[r_numparticles-1].next = NULL;
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}
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void R_ReadPointFile_f (void)
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{
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FILE *f;
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vec3_t org;
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int r;
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int c;
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particle_t *p;
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char name[MAX_OSPATH];
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sprintf (name,"maps/%s.pts", sv.name);
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COM_FOpenFile (name, &f);
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if (!f)
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{
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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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{
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r = fscanf (f,"%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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{
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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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VectorCopy (vec3_origin, p->vel);
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VectorCopy (org, p->org);
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}
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fclose (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_ParseParticleEffect
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Parse an effect out of the server message
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===============
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*/
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void R_ParseParticleEffect (void)
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{
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vec3_t org, dir;
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int i, count, msgcount, color;
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for (i=0 ; i<3 ; i++)
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org[i] = MSG_ReadCoord ();
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for (i=0 ; i<3 ; i++)
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dir[i] = MSG_ReadChar () * (1.0/16);
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msgcount = MSG_ReadByte ();
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color = MSG_ReadByte ();
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if (msgcount == 255)
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count = 1024;
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else
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count = msgcount;
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R_RunParticleEffect (org, dir, color, count);
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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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int i, j;
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particle_t *p;
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for (i=0 ; i<1024 ; i++)
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{
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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 = cl.time + 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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{
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p->type = pt_explode;
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for (j=0 ; j<3 ; j++)
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{
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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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else
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{
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p->type = pt_explode2;
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for (j=0 ; j<3 ; j++)
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{
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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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}
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/*
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===============
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R_ParticleExplosion2
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===============
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*/
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void R_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength)
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{
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int i, j;
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particle_t *p;
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int colorMod = 0;
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for (i=0; i<512; i++)
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{
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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 = cl.time + 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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{
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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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/*
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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, j;
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particle_t *p;
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for (i=0 ; i<1024 ; i++)
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{
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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 = cl.time + 1 + (rand()&8)*0.05;
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if (i & 1)
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{
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p->type = pt_blob;
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p->color = 66 + rand()%6;
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for (j=0 ; j<3 ; j++)
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{
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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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else
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{
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p->type = pt_blob2;
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p->color = 150 + rand()%6;
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for (j=0 ; j<3 ; j++)
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{
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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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}
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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, vec3_t dir, int color, int count)
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{
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int i, j;
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particle_t *p;
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for (i=0 ; i<count ; i++)
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{
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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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if (count == 1024)
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{ // rocket explosion
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p->die = cl.time + 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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{
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p->type = pt_explode;
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for (j=0 ; j<3 ; j++)
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{
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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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else
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{
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p->type = pt_explode2;
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for (j=0 ; j<3 ; j++)
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{
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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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else
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{
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p->die = cl.time + 0.1*(rand()%5);
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p->color = (color&~7) + (rand()&7);
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p->type = pt_slowgrav;
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for (j=0 ; j<3 ; j++)
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{
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p->org[j] = org[j] + ((rand()&15)-8);
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p->vel[j] = dir[j]*15;// + (rand()%300)-150;
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}
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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_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, 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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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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{
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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 = cl.time + 2 + (rand()&31) * 0.02;
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p->color = 224 + (rand()&7);
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p->type = pt_slowgrav;
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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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/*
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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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particle_t *p;
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float vel;
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vec3_t dir;
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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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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 = cl.time + 0.2 + (rand()&7) * 0.02;
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p->color = 7 + (rand()&7);
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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 + (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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void R_RocketTrail (vec3_t start, vec3_t end, int type)
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{
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vec3_t vec;
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float len;
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int j;
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particle_t *p;
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int dec;
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static int tracercount;
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VectorSubtract (end, start, vec);
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len = VectorNormalize (vec);
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if (type < 128)
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dec = 3;
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else
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{
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dec = 1;
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type -= 128;
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}
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while (len > 0)
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{
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len -= dec;
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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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VectorCopy (vec3_origin, p->vel);
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p->die = cl.time + 2;
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switch (type)
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{
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case 0: // rocket trail
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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++)
|
|
p->org[j] = start[j] + ((rand()%6)-3);
|
|
break;
|
|
|
|
case 1: // smoke smoke
|
|
p->ramp = (rand()&3) + 2;
|
|
p->color = ramp3[(int)p->ramp];
|
|
p->type = pt_fire;
|
|
for (j=0 ; j<3 ; j++)
|
|
p->org[j] = start[j] + ((rand()%6)-3);
|
|
break;
|
|
|
|
case 2: // blood
|
|
p->type = pt_grav;
|
|
p->color = 67 + (rand()&3);
|
|
for (j=0 ; j<3 ; j++)
|
|
p->org[j] = start[j] + ((rand()%6)-3);
|
|
break;
|
|
|
|
case 3:
|
|
case 5: // tracer
|
|
p->die = cl.time + 0.5;
|
|
p->type = pt_static;
|
|
if (type == 3)
|
|
p->color = 52 + ((tracercount&4)<<1);
|
|
else
|
|
p->color = 230 + ((tracercount&4)<<1);
|
|
|
|
tracercount++;
|
|
|
|
VectorCopy (start, 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];
|
|
}
|
|
break;
|
|
|
|
case 4: // slight blood
|
|
p->type = pt_grav;
|
|
p->color = 67 + (rand()&3);
|
|
for (j=0 ; j<3 ; j++)
|
|
p->org[j] = start[j] + ((rand()%6)-3);
|
|
len -= 3;
|
|
break;
|
|
|
|
case 6: // voor trail
|
|
p->color = 9*16 + 8 + (rand()&3);
|
|
p->type = pt_static;
|
|
p->die = cl.time + 0.3;
|
|
for (j=0 ; j<3 ; j++)
|
|
p->org[j] = start[j] + ((rand()&15)-8);
|
|
break;
|
|
}
|
|
|
|
|
|
VectorAdd (start, vec, start);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
R_DrawParticles
|
|
===============
|
|
*/
|
|
extern cvar_t sv_gravity;
|
|
|
|
void R_DrawParticles (void)
|
|
{
|
|
particle_t *p, *kill;
|
|
float grav;
|
|
int i;
|
|
float time2, time3;
|
|
float time1;
|
|
float dvel;
|
|
float frametime;
|
|
|
|
#ifdef GLQUAKE
|
|
vec3_t up, right;
|
|
float scale;
|
|
|
|
GL_Bind(particletexture);
|
|
glEnable (GL_BLEND);
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
|
glBegin (GL_TRIANGLES);
|
|
|
|
VectorScale (vup, 1.5, up);
|
|
VectorScale (vright, 1.5, right);
|
|
#else
|
|
D_StartParticles ();
|
|
|
|
VectorScale (vright, xscaleshrink, r_pright);
|
|
VectorScale (vup, yscaleshrink, r_pup);
|
|
VectorCopy (vpn, r_ppn);
|
|
#endif
|
|
frametime = cl.time - cl.oldtime;
|
|
time3 = frametime * 15;
|
|
time2 = frametime * 10; // 15;
|
|
time1 = frametime * 5;
|
|
grav = frametime * sv_gravity.value * 0.05;
|
|
dvel = 4*frametime;
|
|
|
|
for ( ;; )
|
|
{
|
|
kill = active_particles;
|
|
if (kill && kill->die < cl.time)
|
|
{
|
|
active_particles = kill->next;
|
|
kill->next = free_particles;
|
|
free_particles = kill;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
for (p=active_particles ; p ; p=p->next)
|
|
{
|
|
for ( ;; )
|
|
{
|
|
kill = p->next;
|
|
if (kill && kill->die < cl.time)
|
|
{
|
|
p->next = kill->next;
|
|
kill->next = free_particles;
|
|
free_particles = kill;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
#ifdef GLQUAKE
|
|
// hack a scale up to keep particles from disapearing
|
|
scale = (p->org[0] - r_origin[0])*vpn[0] + (p->org[1] - r_origin[1])*vpn[1]
|
|
+ (p->org[2] - r_origin[2])*vpn[2];
|
|
if (scale < 20)
|
|
scale = 1;
|
|
else
|
|
scale = 1 + scale * 0.004;
|
|
glColor3ubv ((byte *)&d_8to24table[(int)p->color]);
|
|
glTexCoord2f (0,0);
|
|
glVertex3fv (p->org);
|
|
glTexCoord2f (1,0);
|
|
glVertex3f (p->org[0] + up[0]*scale, p->org[1] + up[1]*scale, p->org[2] + up[2]*scale);
|
|
glTexCoord2f (0,1);
|
|
glVertex3f (p->org[0] + right[0]*scale, p->org[1] + right[1]*scale, p->org[2] + right[2]*scale);
|
|
#else
|
|
D_DrawParticle (p);
|
|
#endif
|
|
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_grav:
|
|
#ifdef QUAKE2
|
|
p->vel[2] -= grav * 20;
|
|
break;
|
|
#endif
|
|
case pt_slowgrav:
|
|
p->vel[2] -= grav;
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef GLQUAKE
|
|
glEnd ();
|
|
glDisable (GL_BLEND);
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
|
|
#else
|
|
D_EndParticles ();
|
|
#endif
|
|
}
|
|
|