161 lines
3.2 KiB
C
161 lines
3.2 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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Portions Copyright (C) 1999,2000 Nelson Rush.
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Copyright (C) 1999,2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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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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#include "d_iface.h"
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#include <mathlib.h>
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extern particle_t *active_particles, *free_particles;
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extern int ramp1[8], ramp2[8], ramp3[8];
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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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extern cvar_t *sv_gravity;
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void R_DrawParticles (void)
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{
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particle_t *p, *kill;
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float grav;
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int i;
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float time2, time3;
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float time1;
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float dvel;
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float frametime;
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D_StartParticles ();
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VectorScale (vright, xscaleshrink, r_pright);
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VectorScale (vup, yscaleshrink, r_pup);
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VectorCopy (vpn, r_ppn);
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#ifdef QUAKEWORLD
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frametime = host_frametime;
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#else
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frametime = cl.time - cl.oldtime;
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#endif
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time3 = frametime * 15;
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time2 = frametime * 10; // 15;
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time1 = frametime * 5;
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#ifdef QUAKEWORLD
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grav = frametime * 800 * 0.05;
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#else
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grav = frametime * sv_gravity->value * 0.05;
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#endif
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dvel = 4*frametime;
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for ( ;; )
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{
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kill = active_particles;
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if (kill && kill->die < cl.time)
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{
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active_particles = kill->next;
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kill->next = free_particles;
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free_particles = kill;
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continue;
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}
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break;
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}
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for (p=active_particles ; p ; p=p->next)
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{
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for ( ;; )
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{
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kill = p->next;
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if (kill && kill->die < cl.time)
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{
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p->next = kill->next;
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kill->next = free_particles;
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free_particles = kill;
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continue;
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}
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break;
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}
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D_DrawParticle (p);
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p->org[0] += p->vel[0]*frametime;
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p->org[1] += p->vel[1]*frametime;
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p->org[2] += p->vel[2]*frametime;
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switch (p->type)
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{
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case pt_static:
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break;
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case pt_fire:
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p->ramp += time1;
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if (p->ramp >= 6)
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p->die = -1;
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else
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p->color = ramp3[(int)p->ramp];
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p->vel[2] += grav;
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break;
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case pt_explode:
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p->ramp += time2;
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if (p->ramp >=8)
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p->die = -1;
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else
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p->color = ramp1[(int)p->ramp];
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for (i=0 ; i<3 ; i++)
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p->vel[i] += p->vel[i]*dvel;
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p->vel[2] -= grav;
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break;
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case pt_explode2:
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p->ramp += time3;
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if (p->ramp >=8)
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p->die = -1;
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else
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p->color = ramp2[(int)p->ramp];
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for (i=0 ; i<3 ; i++)
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p->vel[i] -= p->vel[i]*frametime;
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p->vel[2] -= grav;
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break;
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case pt_blob:
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for (i=0 ; i<3 ; i++)
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p->vel[i] += p->vel[i]*dvel;
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p->vel[2] -= grav;
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break;
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case pt_blob2:
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for (i=0 ; i<2 ; i++)
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p->vel[i] -= p->vel[i]*dvel;
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p->vel[2] -= grav;
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break;
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case pt_slowgrav:
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case pt_grav:
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p->vel[2] -= grav;
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break;
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}
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}
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D_EndParticles ();
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}
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