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fteqw/engine/client/r_part.c

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/*
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
The aim of this particle system is to have as much as possible configurable.
Some parts still fail here, and are marked FIXME
Effects are flushed on new maps.
The engine has a few builtins.
*/
#include "quakedef.h"
#ifdef SWQUAKE
#include "r_local.h"
#endif
#ifdef RGLQUAKE
#include "glquake.h"//hack
#endif
#include "renderque.h"
#include "r_partset.h"
int pt_explosion,
pt_pointfile,
pt_entityparticles,
pt_darkfield,
pt_blob,
pt_blood,
pt_lightningblood,
pt_gunshot,
pt_wizspike,
pt_knightspike,
pt_spike,
pt_superspike,
pt_lavasplash,
pt_teleportsplash,
pt_blasterparticles,
pt_superbullet,
pt_bullet,
pt_spark,
pt_plasma,
pt_smoke;
int pe_default,
pe_size2,
pe_size3;
int rt_blastertrail,
rt_railtrail,
rt_bubbletrail,
rt_rocket,
rt_grenade,
rt_gib,
rt_lightning1,
rt_lightning2,
rt_lightning3,
pt_lightning1_end,
pt_lightning2_end,
pt_lightning3_end;
//triangle fan sparks use these.
static double sint[7] = {0.000000, 0.781832, 0.974928, 0.433884, -0.433884, -0.974928, -0.781832};
static double cost[7] = {1.000000, 0.623490, -0.222521, -0.900969, -0.900969, -0.222521, 0.623490};
#define crand() (rand()%32767/16383.5f-1)
void D_DrawParticleTrans (particle_t *pparticle);
void D_DrawSparkTrans (particle_t *pparticle, vec3_t src, vec3_t dest);
void P_ReadPointFile_f (void);
#define MAX_BEAMSEGS 2048 // default max # of beam segments
#define MAX_PARTICLES 32768 // default max # of particles at one
// time
#define MAX_DECALS 4096 // this is going to be expensive
#define MAX_TRAILSTATES 512 // default max # of trailstates
//int ramp1[8] = {0x6f, 0x6d, 0x6b, 0x69, 0x67, 0x65, 0x63, 0x61};
//int ramp2[8] = {0x6f, 0x6e, 0x6d, 0x6c, 0x6b, 0x6a, 0x68, 0x66};
//int ramp3[8] = {0x6d, 0x6b, 6, 5, 4, 3, 2, 1};
particle_t *free_particles;
particle_t *particles; //contains the initial list of alloced particles.
int r_numparticles;
beamseg_t *free_beams;
beamseg_t *beams;
int r_numbeams;
clippeddecal_t *free_decals;
clippeddecal_t *decals;
int r_numdecals;
trailstate_t *trailstates;
int ts_cycle; // current cyclic index of trailstates
int r_numtrailstates;
vec3_t r_pright, r_pup, r_ppn;
extern cvar_t r_bouncysparks;
extern cvar_t r_part_rain;
extern cvar_t gl_part_explosionheart, gl_part_emp;
extern cvar_t r_bloodstains;
cvar_t r_particlesdesc = {"r_particlesdesc", "spikeset", NULL, CVAR_LATCH|CVAR_SEMICHEAT};
cvar_t r_part_rain_quantity = {"r_part_rain_quantity", "1"};
cvar_t r_rockettrail = {"r_rockettrail", "1"};
cvar_t r_grenadetrail = {"r_grenadetrail", "1"};
cvar_t r_particle_tracelimit = {"r_particle_tracelimit", "250"};
cvar_t r_part_sparks = {"r_part_sparks", "1"};
cvar_t r_part_sparks_trifan = {"r_part_sparks_trifan", "1"};
cvar_t r_part_sparks_textured = {"r_part_sparks_textured", "1"};
cvar_t r_part_beams = {"r_part_beams", "1"};
cvar_t r_part_beams_textured = {"r_part_beams_textured", "1"};
static float particletime;
typedef struct skytris_s {
struct skytris_s *next;
vec3_t org;
vec3_t x;
vec3_t y;
float area;
float nexttime;
msurface_t *face;
} skytris_t;
//these could be deltas or absolutes depending on ramping mode.
typedef struct {
vec3_t rgb;
float alpha;
float scale;
float rotation;
} ramp_t;
typedef struct part_type_s {
char name[MAX_QPATH];
char texname[MAX_QPATH];
vec3_t rgb;
vec3_t rgbchange;
vec3_t rgbrand;
int colorindex;
int colorrand;
qboolean citracer;
float rgbchangetime;
vec3_t rgbrandsync;
float scale, alpha;
float alphachange;
float die, randdie;
float randomvel, veladd;
float offsetspread;
float offsetspreadvert;
float randomvelvert;
float randscale;
float timelimit;
enum {PT_NORMAL, PT_SPARK, PT_SPARKFAN, PT_TEXTUREDSPARK, PT_BEAM, PT_DECAL} type;
enum {BM_MERGE, BM_ADD, BM_SUBTRACT} blendmode;
float rotationstartmin, rotationstartrand;
float rotationmin, rotationrand;
float scaledelta;
float count;
int texturenum;
int assoc;
int cliptype;
float clipcount;
int emit;
float emittime;
float emitrand;
float emitstart;
float areaspread;
float areaspreadvert;
float scalefactor;
float invscalefactor;
float spawnparam1;
float spawnparam2;
/* float spawnparam3; */
float offsetup; // make this into a vec3_t later with dir, possibly for mdls
enum {SM_BOX, SM_CIRCLE, SM_BALL, SM_SPIRAL, SM_TRACER, SM_TELEBOX, SM_LAVASPLASH, SM_UNICIRCLE, SM_FIELD} spawnmode;
//box = even spread within the area
//circle = around edge of a circle
//ball = filled sphere
//spiral = spiral trail
//tracer = tracer trail
//telebox = q1-style telebox
//lavasplash = q1-style lavasplash
//unicircle = uniform circle
//field = synced field (brightfield, etc)
float gravity;
vec3_t friction;
float clipbounce;
int stains;
enum {RAMP_NONE, RAMP_DELTA, RAMP_ABSOLUTE} rampmode;
int rampindexes;
ramp_t *ramp;
int loaded;
particle_t *particles;
clippeddecal_t *clippeddecals;
beamseg_t *beams;
skytris_t *skytris;
unsigned int flags;
#define PT_VELOCITY 1
#define PT_FRICTION 2
#define PT_CHANGESCOLOUR 4
} part_type_t;
int numparticletypes;
part_type_t *part_type;
static part_type_t *P_GetParticleType(char *name)
{
int i;
part_type_t *ptype;
for (i = 0; i < numparticletypes; i++)
{
ptype = &part_type[i];
if (!strcmp(ptype->name, name))
return ptype;
}
part_type = BZ_Realloc(part_type, sizeof(part_type_t)*(numparticletypes+1));
ptype = &part_type[numparticletypes++];
strcpy(ptype->name, name);
ptype->assoc=-1;
ptype->cliptype = -1;
ptype->emit = -1;
/*
Due to BZ_Realloc we can assume all of this anyway
ptype->loaded = 0;
ptype->ramp = NULL;
ptype->particles = NULL;
ptype->beams = NULL;
*/
return ptype;
}
int P_AllocateParticleType(char *name) //guarentees that the particle type exists, returning it's index.
{
part_type_t *pt = P_GetParticleType(name);
return pt - part_type;
}
int P_ParticleTypeForName(char *name)
{
int to;
to = P_GetParticleType(name) - part_type;
if (to < 0 || to >= numparticletypes)
{
return -1;
}
return to;
}
int P_FindParticleType(char *name) //checks if particle description 'name' exists, returns -1 if not.
{
int i;
for (i = 0; i < numparticletypes; i++)
{
if (!strcmp(part_type[i].name, name))
return i;
}
return -1;
}
int P_DescriptionIsLoaded(char *name)
{
int i = P_FindParticleType(name);
part_type_t *ptype;
if (i < 0)
return false;
ptype = &part_type[i];
if (!ptype->loaded)
return false;
return i+1;
}
static void P_SetModified(void) //called when the particle system changes (from console).
{
if (Cmd_FromGamecode())
return; //server stuffed particle descriptions don't count.
f_modified_particles = true;
if (care_f_modified)
{
care_f_modified = false;
Cbuf_AddText("say particles description has changed\n", RESTRICT_LOCAL);
}
}
static int CheckAssosiation(char *name, int from)
{
int to, orig;
orig = to = P_AllocateParticleType(name);
while(to != -1)
{
if (to == from)
{
Con_Printf("Assosiation of %s would cause infinate loop\n", name);
return -1;
}
to = part_type[to].assoc;
}
return orig;
}
#ifdef RGLQUAKE
void P_LoadTexture(part_type_t *ptype, qboolean warn)
{
if (*ptype->texname && strcmp(ptype->texname, "default"))
{
ptype->texturenum = Mod_LoadHiResTexture(ptype->texname, "particles", true, true, true);
if (!ptype->texturenum)
{
if (warn)
Con_DPrintf("Couldn't load texture %s for particle effect %s\n", ptype->texname, ptype->name);
if (strstr(ptype->texname, "glow") || strstr(ptype->texname, "ball"))
ptype->texturenum = balltexture;
else
ptype->texturenum = explosiontexture;
}
}
else
ptype->texturenum = explosiontexture;
}
#endif
//Uses FTE's multiline console stuff.
//This is the function that loads the effect descriptions (via console).
void P_ParticleEffect_f(void)
{
char *var, *value;
char *buf;
particle_t *parts;
beamseg_t *beamsegs;
skytris_t *st;
part_type_t *ptype;
int pnum, assoc;
if (Cmd_Argc()!=2)
{
Con_Printf("No name for particle effect\n");
return;
}
buf = Cbuf_GetNext(Cmd_ExecLevel);
while (*buf && *buf <= ' ')
buf++; //no whitespace please.
if (*buf != '{')
{
Cbuf_InsertText(buf, Cmd_ExecLevel);
Con_Printf("This is a multiline command and should be used within config files\n");
return;
}
ptype = P_GetParticleType(Cmd_Argv(1));
if (!ptype)
{
Con_Printf("Bad name\n");
return;
}
P_SetModified();
pnum = ptype-part_type;
st = ptype->skytris;
if (ptype->ramp)
BZ_Free(ptype->ramp);
while (ptype->particles) // empty particle list
{
parts = ptype->particles->next;
ptype->particles->next = free_particles;
free_particles = ptype->particles;
ptype->particles = parts;
}
// go with a lazy clear of list.. mark everything as DEAD and let
// the beam rendering handle removing nodes
beamsegs = ptype->beams;
while (beamsegs)
{
beamsegs->flags |= BS_DEAD;
beamsegs = beamsegs->next;
}
beamsegs = ptype->beams;
memset(ptype, 0, sizeof(*ptype));
// ptype->particles = parts;
ptype->beams = beamsegs;
ptype->skytris = st;
strcpy(ptype->name, Cmd_Argv(1));
ptype->assoc=-1;
ptype->cliptype = -1;
ptype->emit = -1;
ptype->alpha = 1;
ptype->alphachange = 1;
ptype->clipbounce = 0.8;
ptype->colorindex = -1;
ptype->rotationstartmin = -M_PI; //start with a random angle
ptype->rotationstartrand = M_PI-ptype->rotationstartmin;
ptype->rotationmin = 0; //but don't spin
ptype->rotationrand = 0;
while(1)
{
buf = Cbuf_GetNext(Cmd_ExecLevel);
while (*buf && *buf <= ' ')
buf++; //no whitespace please.
if (*buf == '}')
break;
if (!*buf)
{
Con_Printf("Unexpected End Of Buffer\n");
return;
}
Cmd_TokenizeString(buf, true, true);
var = Cmd_Argv(0);
value = Cmd_Argv(1);
if (!strcmp(var, "texture"))
Q_strncpyz(ptype->texname, value, sizeof(ptype->texname));
else if (!strcmp(var, "rotationstart"))
{
ptype->rotationstartmin = atof(value)*M_PI/180;
if (Cmd_Argc()>2)
ptype->rotationstartrand = atof(Cmd_Argv(2))*M_PI/180-ptype->rotationstartmin;
else
ptype->rotationstartrand = 0;
}
else if (!strcmp(var, "rotationspeed"))
{
ptype->rotationmin = atof(value)*M_PI/180;
if (Cmd_Argc()>2)
ptype->rotationrand = atof(Cmd_Argv(2))*M_PI/180-ptype->rotationmin;
else
ptype->rotationrand = 0;
}
else if (!strcmp(var, "scale"))
{
ptype->scale = atof(value);
if (Cmd_Argc()>2)
ptype->randscale = atof(Cmd_Argv(2)) - ptype->scale;
}
else if (!strcmp(var, "scalerand"))
ptype->randscale = atof(value);
else if (!strcmp(var, "scalefactor"))
ptype->scalefactor = atof(value);
else if (!strcmp(var, "scaledelta"))
ptype->scaledelta = atof(value);
else if (!strcmp(var, "step"))
ptype->count = 1/atof(value);
else if (!strcmp(var, "count"))
ptype->count = atof(value);
else if (!strcmp(var, "alpha"))
ptype->alpha = atof(value);
else if (!strcmp(var, "alphachange"))
ptype->alphachange = atof(value);
else if (!strcmp(var, "die"))
ptype->die = atof(value);
else if (!strcmp(var, "diesubrand"))
ptype->randdie = atof(value);
else if (!strcmp(var, "randomvel"))
{
ptype->randomvel = atof(value);
if (Cmd_Argc()>2)
ptype->randomvelvert = atof(Cmd_Argv(2));
else
ptype->randomvelvert = ptype->randomvel;
}
else if (!strcmp(var, "veladd"))
ptype->veladd = atof(value);
else if (!strcmp(var, "friction"))
{
ptype->friction[2] = ptype->friction[1] = ptype->friction[0] = atof(value);
if (Cmd_Argc()>3)
{
ptype->friction[2] = atof(Cmd_Argv(3));
ptype->friction[1] = atof(Cmd_Argv(2));
}
else if (Cmd_Argc()>2)
{
ptype->friction[2] = atof(Cmd_Argv(2));
}
}
else if (!strcmp(var, "gravity"))
ptype->gravity = atof(value);
else if (!strcmp(var, "clipbounce"))
ptype->clipbounce = atof(value);
else if (!strcmp(var, "assoc"))
{
assoc = CheckAssosiation(value, pnum); //careful - this can realloc all the particle types
ptype = &part_type[pnum];
ptype->assoc = assoc;
}
else if (!strcmp(var, "colorindex"))
ptype->colorindex = atoi(value);
else if (!strcmp(var, "colorrand"))
ptype->colorrand = atoi(value);
else if (!strcmp(var, "citracer"))
ptype->citracer = true;
else if (!strcmp(var, "red"))
ptype->rgb[0] = atof(value)/255;
else if (!strcmp(var, "green"))
ptype->rgb[1] = atof(value)/255;
else if (!strcmp(var, "blue"))
ptype->rgb[2] = atof(value)/255;
else if (!strcmp(var, "rgb"))
{
ptype->rgb[0] = ptype->rgb[1] = ptype->rgb[2] = atof(value)/255;
if (Cmd_Argc()>3)
{
ptype->rgb[1] = atof(Cmd_Argv(2))/255;
ptype->rgb[2] = atof(Cmd_Argv(3))/255;
}
}
else if (!strcmp(var, "reddelta"))
{
ptype->rgbchange[0] = atof(value)/255;
if (!ptype->rgbchangetime)
ptype->rgbchangetime = ptype->die;
}
else if (!strcmp(var, "greendelta"))
{
ptype->rgbchange[1] = atof(value)/255;
if (!ptype->rgbchangetime)
ptype->rgbchangetime = ptype->die;
}
else if (!strcmp(var, "bluedelta"))
{
ptype->rgbchange[2] = atof(value)/255;
if (!ptype->rgbchangetime)
ptype->rgbchangetime = ptype->die;
}
else if (!strcmp(var, "rgbdelta"))
{
ptype->rgbchange[0] = ptype->rgbchange[1] = ptype->rgbchange[2] = atof(value)/255;
if (Cmd_Argc()>3)
{
ptype->rgbchange[1] = atof(Cmd_Argv(2))/255;
ptype->rgbchange[2] = atof(Cmd_Argv(3))/255;
}
if (!ptype->rgbchangetime)
ptype->rgbchangetime = ptype->die;
}
else if (!strcmp(var, "rgbdeltatime"))
ptype->rgbchangetime = atof(value);
else if (!strcmp(var, "redrand"))
ptype->rgbrand[0] = atof(value)/255;
else if (!strcmp(var, "greenrand"))
ptype->rgbrand[1] = atof(value)/255;
else if (!strcmp(var, "bluerand"))
ptype->rgbrand[2] = atof(value)/255;
else if (!strcmp(var, "rgbrand"))
{
ptype->rgbrand[0] = ptype->rgbrand[1] = ptype->rgbrand[2] = atof(value)/255;
if (Cmd_Argc()>3)
{
ptype->rgbrand[1] = atof(Cmd_Argv(2))/255;
ptype->rgbrand[2] = atof(Cmd_Argv(3))/255;
}
}
else if (!strcmp(var, "rgbrandsync"))
{
ptype->rgbrandsync[0] = ptype->rgbrandsync[1] = ptype->rgbrandsync[2] = atof(value);
if (Cmd_Argc()>3)
{
ptype->rgbrandsync[1] = atof(Cmd_Argv(2));
ptype->rgbrandsync[2] = atof(Cmd_Argv(3));
}
}
else if (!strcmp(var, "redrandsync"))
ptype->rgbrandsync[0] = atof(value);
else if (!strcmp(var, "greenrandsync"))
ptype->rgbrandsync[1] = atof(value);
else if (!strcmp(var, "bluerandsync"))
ptype->rgbrandsync[2] = atof(value);
else if (!strcmp(var, "stains"))
ptype->stains = atoi(value);
else if (!strcmp(var, "blend"))
{
if (!strcmp(value, "add"))
ptype->blendmode = BM_ADD;
else if (!strcmp(value, "subtract"))
ptype->blendmode = BM_SUBTRACT;
else
ptype->blendmode = BM_MERGE;
}
else if (!strcmp(var, "spawnmode"))
{
if (!strcmp(value, "circle"))
ptype->spawnmode = SM_CIRCLE;
else if (!strcmp(value, "ball"))
ptype->spawnmode = SM_BALL;
else if (!strcmp(value, "spiral"))
ptype->spawnmode = SM_SPIRAL;
else if (!strcmp(value, "tracer"))
ptype->spawnmode = SM_TRACER;
else if (!strcmp(value, "telebox"))
ptype->spawnmode = SM_TELEBOX;
else if (!strcmp(value, "lavasplash"))
ptype->spawnmode = SM_LAVASPLASH;
else if (!strcmp(value, "uniformcircle"))
ptype->spawnmode = SM_UNICIRCLE;
else if (!strcmp(value, "syncfield"))
ptype->spawnmode = SM_FIELD;
else
ptype->spawnmode = SM_BOX;
}
else if (!strcmp(var, "type"))
{
if (!strcmp(value, "beam"))
ptype->type = PT_BEAM;
else if (!strcmp(value, "spark"))
ptype->type = PT_SPARK;
else if (!strcmp(value, "sparkfan") || !strcmp(value, "trianglefan"))
ptype->type = PT_SPARKFAN;
else if (!strcmp(value, "texturedspark"))
ptype->type = PT_TEXTUREDSPARK;
else if (!strcmp(value, "decal"))
ptype->type = PT_DECAL;
else
ptype->type = PT_NORMAL;
}
else if (!strcmp(var, "isbeam"))
{
Con_DPrintf("isbeam is deprechiated, use type beam\n");
ptype->type = PT_BEAM;
}
else if (!strcmp(var, "timelimit"))
ptype->timelimit = atof(value);
else if (!strcmp(var, "cliptype"))
{
assoc = P_ParticleTypeForName(value);//careful - this can realloc all the particle types
ptype = &part_type[pnum];
ptype->cliptype = assoc;
}
else if (!strcmp(var, "clipcount"))
ptype->clipcount = atof(value);
else if (!strcmp(var, "emit"))
{
assoc = P_ParticleTypeForName(value);//careful - this can realloc all the particle types
ptype = &part_type[pnum];
ptype->emit = assoc;
}
else if (!strcmp(var, "emitinterval"))
ptype->emittime = atof(value);
else if (!strcmp(var, "emitintervalrand"))
ptype->emitrand = atof(value);
else if (!strcmp(var, "emitstart"))
ptype->emitstart = atof(value);
// old names
else if (!strcmp(var, "areaspread"))
{
Con_DPrintf("areaspread is deprechiated, use spawnorg\n");
ptype->areaspread = atof(value);
}
else if (!strcmp(var, "areaspreadvert"))
{
Con_DPrintf("areaspreadvert is deprechiated, use spawnorg\n");
ptype->areaspreadvert = atof(value);
}
else if (!strcmp(var, "offsetspread"))
{
Con_DPrintf("offsetspread is deprechiated, use spawnvel\n");
ptype->offsetspread = atof(value);
}
else if (!strcmp(var, "offsetspreadvert"))
{
Con_DPrintf("offsetspreadvert is deprechiated, use spawnvel\n");
ptype->offsetspreadvert = atof(value);
}
// new names
else if (!strcmp(var, "spawnorg"))
{
ptype->areaspreadvert = ptype->areaspread = atof(value);
if (Cmd_Argc()>2)
ptype->areaspreadvert = atof(Cmd_Argv(2));
}
else if (!strcmp(var, "spawnvel"))
{
ptype->offsetspreadvert = ptype->offsetspread = atof(value);
if (Cmd_Argc()>2)
ptype->offsetspreadvert = atof(Cmd_Argv(2));
}
// spawn mode param fields
else if (!strcmp(var, "spawnparam1"))
ptype->spawnparam1 = atof(value);
else if (!strcmp(var, "spawnparam2"))
ptype->spawnparam2 = atof(value);
/* else if (!strcmp(var, "spawnparam3"))
ptype->spawnparam3 = atof(value); */
else if (!strcmp(var, "up"))
ptype->offsetup = atof(value);
else if (!strcmp(var, "rampmode"))
{
if (!strcmp(value, "none"))
ptype->rampmode = RAMP_NONE;
else if (!strcmp(value, "absolute"))
ptype->rampmode = RAMP_ABSOLUTE;
else //if (!strcmp(value, "delta"))
ptype->rampmode = RAMP_DELTA;
}
else if (!strcmp(var, "rampindexlist"))
{ // better not use this with delta ramps...
int cidx, i;
i = 1;
while (i <= Cmd_Argc())
{
ptype->ramp = BZ_Realloc(ptype->ramp, sizeof(ramp_t)*(ptype->rampindexes+1));
cidx = atoi(Cmd_Argv(i));
ptype->ramp[ptype->rampindexes].alpha = cidx > 255 ? 0.5 : 1;
cidx = d_8to24rgbtable[cidx];
ptype->ramp[ptype->rampindexes].rgb[0] = (cidx & 0xff) * (1/255.0);
ptype->ramp[ptype->rampindexes].rgb[1] = (cidx >> 8 & 0xff) * (1/255.0);
ptype->ramp[ptype->rampindexes].rgb[2] = (cidx >> 16 & 0xff) * (1/255.0);
ptype->ramp[ptype->rampindexes].scale = ptype->scale;
ptype->rampindexes++;
i++;
}
}
else if (!strcmp(var, "rampindex"))
{
int cidx;
ptype->ramp = BZ_Realloc(ptype->ramp, sizeof(ramp_t)*(ptype->rampindexes+1));
cidx = atoi(value);
ptype->ramp[ptype->rampindexes].alpha = cidx > 255 ? 0.5 : 1;
if (Cmd_Argc() > 2) // they gave alpha
ptype->ramp[ptype->rampindexes].alpha *= atof(Cmd_Argv(2));
cidx = d_8to24rgbtable[cidx];
ptype->ramp[ptype->rampindexes].rgb[0] = (cidx & 0xff) * (1/255.0);
ptype->ramp[ptype->rampindexes].rgb[1] = (cidx >> 8 & 0xff) * (1/255.0);
ptype->ramp[ptype->rampindexes].rgb[2] = (cidx >> 16 & 0xff) * (1/255.0);
if (Cmd_Argc() > 3) // they gave scale
ptype->ramp[ptype->rampindexes].scale = atof(Cmd_Argv(3));
else
ptype->ramp[ptype->rampindexes].scale = ptype->scale;
ptype->rampindexes++;
}
else if (!strcmp(var, "ramp"))
{
ptype->ramp = BZ_Realloc(ptype->ramp, sizeof(ramp_t)*(ptype->rampindexes+1));
ptype->ramp[ptype->rampindexes].rgb[0] = atof(value)/255;
if (Cmd_Argc()>3) //seperate rgb
{
ptype->ramp[ptype->rampindexes].rgb[1] = atof(Cmd_Argv(2))/255;
ptype->ramp[ptype->rampindexes].rgb[2] = atof(Cmd_Argv(3))/255;
if (Cmd_Argc()>4) //have we alpha and scale changes?
{
ptype->ramp[ptype->rampindexes].alpha = atof(Cmd_Argv(4));
if (Cmd_Argc()>5) //have we scale changes?
ptype->ramp[ptype->rampindexes].scale = atof(Cmd_Argv(5));
else
ptype->ramp[ptype->rampindexes].scale = ptype->scaledelta;
}
else
{
ptype->ramp[ptype->rampindexes].alpha = ptype->alpha;
ptype->ramp[ptype->rampindexes].scale = ptype->scaledelta;
}
}
else //they only gave one value
{
ptype->ramp[ptype->rampindexes].rgb[1] = ptype->ramp[ptype->rampindexes].rgb[0];
ptype->ramp[ptype->rampindexes].rgb[2] = ptype->ramp[ptype->rampindexes].rgb[0];
ptype->ramp[ptype->rampindexes].alpha = ptype->alpha;
ptype->ramp[ptype->rampindexes].scale = ptype->scaledelta;
}
ptype->rampindexes++;
}
else
Con_DPrintf("%s is not a recognised particle type field (in %s)\n", var, ptype->name);
}
ptype->invscalefactor = 1-ptype->scalefactor;
ptype->loaded = 1;
if (ptype->clipcount < 1)
ptype->clipcount = 1;
ptype->flags = 0;
//if there is a chance that it moves
if (ptype->randomvel || ptype->gravity || ptype->veladd || ptype->offsetspread || ptype->offsetspreadvert)
ptype->flags |= PT_VELOCITY;
//if it has friction
if (ptype->friction)
ptype->flags |= PT_FRICTION;
if (ptype->type == PT_NORMAL && !*ptype->texname)
ptype->type = PT_SPARK;
if (ptype->type == PT_SPARK)
{
if (*ptype->texname)
ptype->type = PT_TEXTUREDSPARK;
if (ptype->scale)
ptype->type = PT_SPARKFAN;
}
if (ptype->rampmode && !ptype->ramp)
{
ptype->rampmode = RAMP_NONE;
Con_Printf("Particle type %s has a ramp mode but no ramp\n", ptype->name);
}
else if (ptype->ramp && !ptype->rampmode)
{
Con_Printf("Particle type %s has a ramp but no ramp mode\n", ptype->name);
}
#ifdef RGLQUAKE
if (qrenderer == QR_OPENGL)
{
P_LoadTexture(ptype, true);
}
#endif
}
//assosiate a point effect with a model.
//the effect will be spawned every frame with count*frametime
//has the capability to hide models.
void P_AssosiateEffect_f (void)
{
char *modelname = Cmd_Argv(1);
char *effectname = Cmd_Argv(2);
int effectnum;
model_t *model;
if (!cls.demoplayback && (
strstr(modelname, "player") ||
strstr(modelname, "eyes") ||
strstr(modelname, "flag") ||
strstr(modelname, "tf_stan") ||
strstr(modelname, ".bsp") ||
strstr(modelname, "turr")))
{
Con_Printf("Sorry: Not allowed to attach effects to model \"%s\"\n", modelname);
return;
}
model = Mod_FindName(modelname);
if (!cls.demoplayback && (model->flags & EF_ROTATE))
{
Con_Printf("Sorry: You may not assosiate effects with item model \"%s\"\n", modelname);
return;
}
effectnum = P_AllocateParticleType(effectname);
model->particleeffect = effectnum;
model->particleengulphs = atoi(Cmd_Argv(3));
P_SetModified(); //make it appear in f_modified.
}
//assosiate a particle trail with a model.
//the effect will be spawned between two points when an entity with the model moves.
void P_AssosiateTrail_f (void)
{
char *modelname = Cmd_Argv(1);
char *effectname = Cmd_Argv(2);
int effectnum;
model_t *model;
if (!cls.demoplayback && (
strstr(modelname, "player") ||
strstr(modelname, "eyes") ||
strstr(modelname, "flag") ||
strstr(modelname, "tf_stan")))
{
Con_Printf("Sorry, you can't assosiate trails with model \"%s\"\n", modelname);
return;
}
model = Mod_FindName(modelname);
effectnum = P_AllocateParticleType(effectname);
model->particletrail = effectnum;
model->nodefaulttrail = true; //we could have assigned the trail to a model that wasn't loaded.
P_SetModified(); //make it appear in f_modified.
}
void P_DefaultTrail (model_t *model)
{
if (model->nodefaulttrail == true)
return;
if (model->flags & EF_ROCKET)
{
switch((int)r_rockettrail.value)
{
case 0:
model->particletrail = P_AllocateParticleType("t_null");
break;
case 1:
default:
model->particletrail = rt_rocket;//q2 models do this without flags.
break;
case 2:
model->particletrail = rt_grenade;
break;
case 3:
model->particletrail = P_AllocateParticleType("t_altrocket");
break;
case 4:
model->particletrail = rt_gib;
break;
case 5:
model->particletrail = P_AllocateParticleType("t_zomgib");
break;
case 6:
model->particletrail = P_AllocateParticleType("t_tracer");
break;
case 7:
model->particletrail = P_AllocateParticleType("t_tracer2");
break;
case 8:
model->particletrail = P_AllocateParticleType("t_tracer3");
break;
}
}
else if (model->flags & EF_GRENADE)
{
if (r_grenadetrail.value)
model->particletrail = rt_grenade;
else
model->particletrail = P_AllocateParticleType("t_null");
}
else if (model->flags & EF_GIB)
model->particletrail = rt_gib;
else if (model->flags & EF_TRACER)
model->particletrail = P_AllocateParticleType("t_tracer");
else if (model->flags & EF_ZOMGIB)
model->particletrail = P_AllocateParticleType("t_zomgib");
else if (model->flags & EF_TRACER2)
model->particletrail = P_AllocateParticleType("t_tracer2");
else if (model->flags & EF_TRACER3)
model->particletrail = P_AllocateParticleType("t_tracer3");
else if (model->flags & EF_BLOODSHOT) //these are the hexen2 ones.
model->particletrail = P_AllocateParticleType("t_bloodshot");
else if (model->flags & EF_FIREBALL)
model->particletrail = P_AllocateParticleType("t_fireball");
else if (model->flags & EF_ACIDBALL)
model->particletrail = P_AllocateParticleType("t_acidball");
else if (model->flags & EF_ICE)
model->particletrail = P_AllocateParticleType("t_ice");
else if (model->flags & EF_SPIT)
model->particletrail = P_AllocateParticleType("t_spit");
else if (model->flags & EF_SPELL)
model->particletrail = P_AllocateParticleType("t_spell");
else if (model->flags & EF_VORP_MISSILE)
model->particletrail = P_AllocateParticleType("t_vorpmissile");
else if (model->flags & EF_SET_STAFF)
model->particletrail = P_AllocateParticleType("t_setstaff");
else if (model->flags & EF_MAGICMISSILE)
model->particletrail = P_AllocateParticleType("t_magicmissile");
else if (model->flags & EF_BONESHARD)
model->particletrail = P_AllocateParticleType("t_boneshard");
else if (model->flags & EF_SCARAB)
model->particletrail = P_AllocateParticleType("t_scarab");
else
model->particletrail = -1;
}
#if _DEBUG
// R_BeamInfo_f - debug junk
void P_BeamInfo_f (void)
{
beamseg_t *bs;
int i, j, k, l, m;
i = 0;
for (bs = free_beams; bs; bs = bs->next)
i++;
Con_Printf("%i free beams\n", i);
for (i = 0; i < numparticletypes; i++)
{
m = l = k = j = 0;
for (bs = part_type[i].beams; bs; bs = bs->next)
{
if (!bs->p)
k++;
if (bs->flags & BS_DEAD)
l++;
if (bs->flags & BS_LASTSEG)
m++;
j++;
}
if (j)
Con_Printf("Type %i = %i NULL p, %i DEAD, %i LASTSEG, %i total\n", i, k, l, m, j);
}
}
void P_PartInfo_f (void)
{
particle_t *p;
int i, j;
i = 0;
for (p = free_particles; p; p = p->next)
i++;
Con_Printf("%i free particles\n", i);
for (i = 0; i < numparticletypes; i++)
{
j = 0;
for (p = part_type[i].particles; p; p = p->next)
j++;
if (j)
Con_Printf("Type %s = %i total\n", part_type[i].name, j);
}
}
#endif
/*
===============
R_InitParticles
===============
*/
void P_InitParticles (void)
{
char *particlecvargroupname = "Particle effects";
int i;
if (r_numparticles) //already inited
return;
i = COM_CheckParm ("-particles");
if (i)
{
r_numparticles = (int)(Q_atoi(com_argv[i+1]));
}
else
{
r_numparticles = MAX_PARTICLES;
}
r_numbeams = MAX_BEAMSEGS;
r_numdecals = MAX_DECALS;
r_numtrailstates = MAX_TRAILSTATES;
particles = (particle_t *)
Hunk_AllocName (r_numparticles * sizeof(particle_t), "particles");
beams = (beamseg_t *)
Hunk_AllocName (r_numbeams * sizeof(beamseg_t), "beamsegs");
decals = (clippeddecal_t *)
Hunk_AllocName (r_numdecals * sizeof(clippeddecal_t), "decals");
trailstates = (trailstate_t *)
Hunk_AllocName (r_numtrailstates * sizeof(trailstate_t), "trailstates");
ts_cycle = 0;
Cmd_AddCommand("pointfile", P_ReadPointFile_f); //load the leak info produced from qbsp into the particle system to show a line. :)
Cmd_AddCommand("r_part", P_ParticleEffect_f);
Cmd_AddCommand("r_effect", P_AssosiateEffect_f);
Cmd_AddCommand("r_trail", P_AssosiateTrail_f);
#if _DEBUG
Cmd_AddCommand("r_partinfo", P_PartInfo_f);
Cmd_AddCommand("r_beaminfo", P_BeamInfo_f);
#endif
//particles
Cvar_Register(&r_particlesdesc, particlecvargroupname);
Cvar_Register(&r_bouncysparks, particlecvargroupname);
Cvar_Register(&r_part_rain, particlecvargroupname);
Cvar_Register(&r_part_rain_quantity, particlecvargroupname);
Cvar_Register(&r_particle_tracelimit, particlecvargroupname);
Cvar_Register(&r_rockettrail, particlecvargroupname);
Cvar_Register(&r_grenadetrail, particlecvargroupname);
Cvar_Register(&r_part_sparks, particlecvargroupname);
Cvar_Register(&r_part_sparks_trifan, particlecvargroupname);
Cvar_Register(&r_part_sparks_textured, particlecvargroupname);
Cvar_Register(&r_part_beams, particlecvargroupname);
Cvar_Register(&r_part_beams_textured, particlecvargroupname);
pt_explosion = P_AllocateParticleType("te_explosion");
pt_pointfile = P_AllocateParticleType("pe_pointfile");
pt_entityparticles = P_AllocateParticleType("ef_entityparticles");
pt_darkfield = P_AllocateParticleType("ef_darkfield");
pt_blob = P_AllocateParticleType("te_blob");
pt_blood = P_AllocateParticleType("te_blood");
pt_lightningblood = P_AllocateParticleType("te_lightningblood");
pt_gunshot = P_AllocateParticleType("te_gunshot");
pt_lavasplash = P_AllocateParticleType("te_lavasplash");
pt_teleportsplash = P_AllocateParticleType("te_teleportsplash");
pt_superbullet = P_AllocateParticleType("te_superbullet");
pt_bullet = P_AllocateParticleType("te_bullet");
pt_blasterparticles = P_AllocateParticleType("te_blasterparticles");
pt_wizspike = P_AllocateParticleType("te_wizspike");
pt_knightspike = P_AllocateParticleType("te_knightspike");
pt_spike = P_AllocateParticleType("te_spike");
pt_superspike = P_AllocateParticleType("te_superspike");
rt_railtrail = P_AllocateParticleType("te_railtrail");
rt_bubbletrail = P_AllocateParticleType("te_bubbletrail");
rt_blastertrail = P_AllocateParticleType("t_blastertrail");
rt_rocket = P_AllocateParticleType("t_rocket");
rt_grenade = P_AllocateParticleType("t_grenade");
rt_gib = P_AllocateParticleType("t_gib");
rt_lightning1 = P_AllocateParticleType("te_lightning1");
rt_lightning2 = P_AllocateParticleType("te_lightning2");
rt_lightning3 = P_AllocateParticleType("te_lightning3");
pt_lightning1_end = P_AllocateParticleType("te_lightning1_end");
pt_lightning2_end = P_AllocateParticleType("te_lightning2_end");
pt_lightning3_end = P_AllocateParticleType("te_lightning3_end");
pt_spark = P_AllocateParticleType("te_spark");
pt_plasma = P_AllocateParticleType("te_plasma");
pt_smoke = P_AllocateParticleType("te_smoke");
pe_default = P_AllocateParticleType("pe_default");
pe_size2 = P_AllocateParticleType("pe_size2");
pe_size3 = P_AllocateParticleType("pe_size3");
}
/*
===============
P_ClearParticles
===============
*/
void P_ClearParticles (void)
{
int i;
free_particles = &particles[0];
for (i=0 ;i<r_numparticles ; i++)
particles[i].next = &particles[i+1];
particles[r_numparticles-1].next = NULL;
free_decals = &decals[0];
for (i=0 ;i<r_numdecals ; i++)
decals[i].next = &decals[i+1];
decals[r_numdecals-1].next = NULL;
free_beams = &beams[0];
for (i=0 ;i<r_numbeams ; i++)
{
beams[i].p = NULL;
beams[i].flags = BS_DEAD;
beams[i].next = &beams[i+1];
}
beams[r_numbeams-1].next = NULL;
particletime = cl.time;
#ifdef RGLQUAKE
if (qrenderer == QR_OPENGL)
{
for (i = 0; i < numparticletypes; i++)
{
P_LoadTexture(&part_type[i], false);
}
}
#endif
for (i = 0; i < numparticletypes; i++)
{
part_type[i].clippeddecals = NULL;
part_type[i].particles = NULL;
part_type[i].beams = NULL;
part_type[i].skytris = NULL;
}
}
void P_NewServer(void)
{
extern model_t mod_known[];
extern int mod_numknown;
model_t *mod;
int i;
for (i = 0; i < numparticletypes; i++)
{
*part_type[i].texname = '\0';
part_type[i].scale = 0;
part_type[i].loaded = 0;
if (part_type->ramp)
BZ_Free(part_type->ramp);
part_type->ramp = NULL;
}
for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++)
{
mod->particleeffect = -1;
mod->particletrail = -1;
mod->nodefaulttrail = false;
P_DefaultTrail(mod);
}
f_modified_particles = false;
//particle descriptions submitted by the server are deemed to not be cheats but game configs.
if (!stricmp(r_particlesdesc.string, "none"))
return;
else if (!stricmp(r_particlesdesc.string, "faithful") || !*r_particlesdesc.string)
Cbuf_AddText(particle_set_faithful, RESTRICT_SERVER);
else if (!stricmp(r_particlesdesc.string, "spikeset"))
Cbuf_AddText(particle_set_spikeset, RESTRICT_SERVER);
else if (!stricmp(r_particlesdesc.string, "highfps"))
Cbuf_AddText(particle_set_highfps, RESTRICT_SERVER);
else
{
char *file = COM_LoadMallocFile(va("particles/%s.cfg", r_particlesdesc.string));
if (!file)
file = COM_LoadMallocFile(va("%s.cfg", r_particlesdesc.string));
if (file)
{
Cbuf_AddText(file, RESTRICT_LOCAL);
Cbuf_AddText("\n", RESTRICT_LOCAL); //I'm paranoid.
BZ_Free(file);
}
else
{
Con_Printf("Couldn't find particle description, using spikeset\n");
Cbuf_AddText(particle_set_spikeset, RESTRICT_SERVER);
}
/*
#if defined(_DEBUG) && defined(_WIN32) //expand the particles cfg into a C style quoted string, and copy to clipboard so I can paste it in.
{
char *TL_ExpandToCString(char *in);
extern HWND mainwindow;
char *file = COM_LoadTempFile(va("%s.cfg", r_particlesdesc.string));
char *lptstrCopy, *buf, temp;
int len;
HANDLE hglbCopy = GlobalAlloc(GMEM_MOVEABLE,
com_filesize*2);
lptstrCopy = GlobalLock(hglbCopy);
while(file && *file)
{
len = strlen(file)+1;
if (len > 1024)
len = 1024;
temp = file[len-1];
file[len-1] = '\0';
buf = TL_ExpandToCString(file);
file[len-1] = temp;
len-=1;
com_filesize -= len;
file+=len;
len = strlen(buf);
memcpy(lptstrCopy, buf, len);
lptstrCopy+=len;
}
*lptstrCopy = '\0';
GlobalUnlock(hglbCopy);
if (!OpenClipboard(mainwindow))
return;
EmptyClipboard();
SetClipboardData(CF_TEXT, hglbCopy);
CloseClipboard();
}
#endif
*/
}
}
void P_ReadPointFile_f (void)
{
FILE *f;
vec3_t org;
int r;
int c;
char name[MAX_OSPATH];
COM_StripExtension(cl.worldmodel->name, name);
strcat(name, ".pts");
COM_FOpenFile (name, &f);
if (!f)
{
Con_Printf ("couldn't open %s\n", name);
return;
}
P_ClearParticles(); //so overflows arn't as bad.
Con_Printf ("Reading %s...\n", name);
c = 0;
for ( ;; )
{
r = fscanf (f,"%f %f %f\n", &org[0], &org[1], &org[2]);
if (r != 3)
break;
c++;
if (c%8)
continue;
if (!free_particles)
{
Con_Printf ("Not enough free particles\n");
break;
}
P_RunParticleEffectType(org, NULL, 1, pt_pointfile);
}
fclose (f);
Con_Printf ("%i points read\n", c);
}
void P_AddRainParticles(void)
{
float x;
float y;
static float skipped;
static float lastrendered;
int ptype;
vec3_t org, vdist;
skytris_t *st;
if (!r_part_rain.value || !r_part_rain_quantity.value)
{
skipped = true;
return;
}
if (lastrendered < particletime - 0.5)
skipped = true; //we've gone for half a sec without any new rain. This would cause some strange effects, so reset times.
if (skipped)
{
for (ptype = 0; ptype<numparticletypes; ptype++)
{
for (st = part_type[ptype].skytris; st; st = st->next)
{
st->nexttime = particletime;
}
}
}
skipped = false;
lastrendered = particletime;
/*
{
int i;
glDisable(GL_TEXTURE_2D);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glDisable(GL_DEPTH_TEST);
glBegin(GL_TRIANGLES);
st = skytris;
for (i = 0; i < r_part_rain_quantity.value; i++)
st = st->next;
glVertex3f(st->org[0], st->org[1], st->org[2]);
glVertex3f(st->org[0]+st->x[0], st->org[1]+st->x[1], st->org[2]+st->x[2]);
glVertex3f(st->org[0]+st->y[0], st->org[1]+st->y[1], st->org[2]+st->y[2]);
glEnd();
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glBegin(GL_POINTS);
for (i = 0; i < 1000; i++)
{
x = frandom()*frandom();
y = frandom() * (1-x);
VectorMA(st->org, x, st->x, org);
VectorMA(org, y, st->y, org);
glVertex3f(org[0], org[1], org[2]);
}
glEnd();
glEnable(GL_DEPTH_TEST);
}
*/
for (ptype = 0; ptype<numparticletypes; ptype++)
{
if (!part_type[ptype].loaded) //woo, batch skipping.
continue;
for (st = part_type[ptype].skytris; st; st = st->next)
{
// if (st->face->visframe != r_framecount)
// continue;
if (st->face->visframe != r_framecount)
{
st->nexttime = particletime;
continue;
}
while (st->nexttime < particletime)
{
if (!free_particles)
return;
st->nexttime += 10000/(st->area*r_part_rain_quantity.value);
x = frandom()*frandom();
y = frandom() * (1-x);
VectorMA(st->org, x, st->x, org);
VectorMA(org, y, st->y, org);
VectorSubtract(org, r_refdef.vieworg, vdist);
if (Length(vdist) > (1024+512)*frandom())
continue;
if (st->face->flags & SURF_PLANEBACK)
VectorMA(org, -0.5, st->face->plane->normal, org);
else
VectorMA(org, 0.5, st->face->plane->normal, org);
if (!(cl.worldmodel->hulls->funcs.HullPointContents(cl.worldmodel->hulls, org) & FTECONTENTS_SOLID))
{
if (st->face->flags & SURF_PLANEBACK)
{
vdist[0] = -st->face->plane->normal[0];
vdist[1] = -st->face->plane->normal[1];
vdist[2] = -st->face->plane->normal[2];
P_RunParticleEffectType(org, vdist, 1, ptype);
}
else
P_RunParticleEffectType(org, st->face->plane->normal, 1, ptype);
}
}
}
}
}
void R_Part_SkyTri(float *v1, float *v2, float *v3, msurface_t *surf)
{
float dot;
float xm;
float ym;
float theta;
vec3_t xd;
vec3_t yd;
skytris_t *st;
st = Hunk_Alloc(sizeof(skytris_t));
st->next = part_type[surf->texinfo->texture->parttype].skytris;
VectorCopy(v1, st->org);
VectorSubtract(v2, st->org, st->x);
VectorSubtract(v3, st->org, st->y);
VectorCopy(st->x, xd);
VectorCopy(st->y, yd);
/*
xd[2] = 0; //prevent area from being valid on vertical surfaces
yd[2] = 0;
*/
xm = Length(xd);
ym = Length(yd);
dot = DotProduct(xd, yd);
theta = acos(dot/(xm*ym));
st->area = sin(theta)*xm*ym;
st->nexttime = particletime;
st->face = surf;
if (st->area<=0)
return;//bummer.
part_type[surf->texinfo->texture->parttype].skytris = st;
}
void P_EmitSkyEffectTris(model_t *mod, msurface_t *fa)
{
vec3_t verts[64];
int v1;
int v2;
int v3;
int numverts;
int i, lindex;
float *vec;
//
// convert edges back to a normal polygon
//
numverts = 0;
for (i=0 ; i<fa->numedges ; i++)
{
lindex = mod->surfedges[fa->firstedge + i];
if (lindex > 0)
vec = mod->vertexes[mod->edges[lindex].v[0]].position;
else
vec = mod->vertexes[mod->edges[-lindex].v[1]].position;
VectorCopy (vec, verts[numverts]);
numverts++;
if (numverts>=64)
{
Con_Printf("Too many verts on sky surface\n");
return;
}
}
v1 = 0;
v2 = 1;
for (v3 = 2; v3 < numverts; v3++)
{
R_Part_SkyTri(verts[v1], verts[v2], verts[v3], fa);
v2 = v3;
}
}
//FIXME!
void P_DarkFieldParticles (float *org, qbyte colour)
{
int i, j, k;
vec3_t dir, norg;
for (i=-16 ; i<16 ; i+=8)
for (j=-16 ; j<16 ; j+=8)
for (k=0 ; k<32 ; k+=8)
{
if (!free_particles)
return;
norg[0] = org[0] + i + (rand()&3);
norg[1] = org[1] + j + (rand()&3);
norg[2] = org[2] + k + (rand()&3);
dir[0] = j;
dir[1] = i;
dir[2] = k;
P_RunParticleEffectType(norg, dir, 1, pt_darkfield);
}
}
/*
===============
R_EntityParticles
===============
*/
#define NUMVERTEXNORMALS 162
float r_avertexnormals[NUMVERTEXNORMALS][3] = {
#include "anorms.h"
};
vec2_t avelocities[NUMVERTEXNORMALS];
#define BEAMLENGTH 16
// vec3_t avelocity = {23, 7, 3};
// float partstep = 0.01;
// float timescale = 0.01;
void P_EntityParticles (float *org, qbyte colour, float *radius)
{
part_type[pt_entityparticles].areaspread = radius[0]*0.5 + radius[1]*0.5;
part_type[pt_entityparticles].areaspreadvert = radius[2];
part_type[pt_entityparticles].colorindex = colour;
P_RunParticleEffectType(org, NULL, 1, pt_entityparticles);
}
/*
===============
R_ParticleExplosion
===============
*/
void P_ParticleExplosion (vec3_t org)
{
// int i, j;
// particle_t *p;
P_RunParticleEffectType(org, NULL, 1, pt_explosion);
R_AddStain(org, -1, -1, -1, 100);
/*
for (i=0 ; i<r_particles_in_explosion.value ; i++)
{
if (!free_particles)
return;
if ((rand()&3)==3)
{
p = free_particles;
free_particles = p->next;
p->next = active_sparks;
active_sparks = p;
p->scale = 1;
p->alpha = 0.8 + (rand()&15)/(15.0*5);
p->die = particletime + 7;
p->color = ramp1[0];
p->ramp = rand()&3;
if (i & 1)
{
p->type = st_shrapnal;
for (j=0 ; j<3 ; j++)
{
p->org[j] = org[j];// + ((rand()%32)-16);
p->vel[j] = ((rand()%512)-256)*r_particle_explosion_speed.value;
}
}
else
{
p->type = pt_grav;
for (j=0 ; j<3 ; j++)
{
p->org[j] = org[j];// + ((rand()%32)-16);
p->vel[j] = ((rand()%512)-256)*r_particle_explosion_speed.value;
}
}
}
else
{
p = free_particles;
free_particles = p->next;
p->next = active_sparks;
active_sparks = p;
p->scale = 1;
p->alpha = 0.8;
p->die = particletime + 7;
p->color = ramp1[0];
p->ramp = rand()&3;
if (i & 1)
{
p->type = st_shrapnal;
for (j=0 ; j<3 ; j++)
{
p->org[j] = org[j];// + ((rand()%32)-16);
p->vel[j] = ((rand()%512)-256)*r_particle_explosion_speed.value;
}
}
else
{
p->type = st_shrapnal;
for (j=0 ; j<3 ; j++)
{
p->org[j] = org[j];// + ((rand()%32)-16);
p->vel[j] = ((rand()%512)-256)*r_particle_explosion_speed.value;
}
}
}
}*/
}
/*
===============
R_BlobExplosion
===============
*/
void P_BlobExplosion (vec3_t org)
{
P_RunParticleEffectType(org, NULL, 1, pt_blob);
}
int P_RunParticleEffectTypeString (vec3_t org, vec3_t dir, float count, char *name)
{
int type = P_FindParticleType(name);
if (type < 0)
return 1;
return P_RunParticleEffectType(org, dir, count, type);
}
int Q1BSP_ClipDecal(vec3_t center, vec3_t normal, vec3_t tangent, vec3_t tangent2, float size, float **out);
int P_RunParticleEffectType (vec3_t org, vec3_t dir, float count, int typenum)
{
part_type_t *ptype = &part_type[typenum];
int i, j, k, l, spawnspc;
float m;
particle_t *p;
beamseg_t *b, *bfirst;
vec3_t ofsvec, arsvec; // offsetspread vec, areaspread vec
if (typenum < 0)
return 1;
if (!ptype->loaded)
return 1;
if (ptype->type == PT_DECAL)
{
clippeddecal_t *d;
int decalcount;
float dist;
vec3_t tangent, t2;
vec3_t vec={0.5, 0.5, 0.5};
static vec3_t up = {0,0.73,-0.73};
float *decverts;
int i;
if (!free_decals)
return 0;
if (!dir)
dir = up;
VectorNormalize(vec);
CrossProduct(dir, vec, tangent);
CrossProduct(dir, tangent, t2);
decalcount = Q1BSP_ClipDecal(org, dir, tangent, t2, ptype->scale, &decverts);
while(decalcount)
{
if (!free_decals)
break;
d = free_decals;
free_decals = d->next;
d->next = ptype->clippeddecals;
ptype->clippeddecals = d;
VectorCopy((decverts+0), d->vertex[0]);
VectorCopy((decverts+3), d->vertex[1]);
VectorCopy((decverts+6), d->vertex[2]);
for (i = 0; i < 3; i++)
{
VectorSubtract(d->vertex[i], org, vec);
d->texcoords[i][0] = (DotProduct(vec, t2)/ptype->scale)+0.5;
d->texcoords[i][1] = (DotProduct(vec, tangent)/ptype->scale)+0.5;
}
d->die = ptype->randdie*frandom();
if (ptype->die)
d->alpha = ptype->alpha-d->die*(ptype->alpha/ptype->die)*ptype->alphachange;
else
d->alpha = ptype->alpha;
if (ptype->colorindex >= 0)
{
int cidx;
cidx = ptype->colorrand > 0 ? rand() % ptype->colorrand : 0;
cidx = ptype->colorindex + cidx;
if (cidx > 255)
d->alpha = d->alpha / 2; // Hexen 2 style transparency
cidx = d_8to24rgbtable[cidx & 0xff];
d->rgb[0] = (cidx & 0xff) * (1/255.0);
d->rgb[1] = (cidx >> 8 & 0xff) * (1/255.0);
d->rgb[2] = (cidx >> 16 & 0xff) * (1/255.0);
}
else
VectorCopy(ptype->rgb, d->rgb);
vec[2] = frandom();
vec[0] = vec[2]*ptype->rgbrandsync[0] + frandom()*(1-ptype->rgbrandsync[0]);
vec[1] = vec[2]*ptype->rgbrandsync[1] + frandom()*(1-ptype->rgbrandsync[1]);
vec[2] = vec[2]*ptype->rgbrandsync[2] + frandom()*(1-ptype->rgbrandsync[2]);
d->rgb[0] += vec[0]*ptype->rgbrand[0] + ptype->rgbchange[0]*d->die;
d->rgb[1] += vec[1]*ptype->rgbrand[1] + ptype->rgbchange[1]*d->die;
d->rgb[2] += vec[2]*ptype->rgbrand[2] + ptype->rgbchange[2]*d->die;
d->die = particletime + ptype->die - d->die;
decverts += 3*3;
decalcount--;
}
return 0;
}
// get msvc to shut up
j = k = l = 0;
m = 0;
while(ptype)
{
// init spawn specific variables
b = bfirst = NULL;
spawnspc = 8;
switch (ptype->spawnmode)
{
case SM_UNICIRCLE:
m = (count*ptype->count);
if (ptype->type == PT_BEAM)
m--;
if (m < 1)
m = 0;
else
m = (M_PI*2)/m;
if (ptype->spawnparam1) /* use for weird shape hacks */
m *= ptype->spawnparam1;
break;
case SM_TELEBOX:
spawnspc = 4;
l = -ptype->areaspreadvert;
case SM_LAVASPLASH:
j = k = -ptype->areaspread;
if (ptype->spawnparam1)
m = ptype->spawnparam1;
else
m = 0.55752; /* default weird number for tele/lavasplash used in vanilla Q1 */
if (ptype->spawnparam2)
spawnspc = (int)ptype->spawnparam2;
break;
case SM_FIELD:
if (!avelocities[0][0])
{
for (j=0 ; j<NUMVERTEXNORMALS*2 ; j++)
avelocities[0][j] = (rand()&255) * 0.01;
}
j = 0;
m = 0;
break;
default: //others don't need intitialisation
break;
}
// particle spawning loop
for (i = 0; i < count*ptype->count; i++)
{
if (!free_particles)
break;
p = free_particles;
if (ptype->type == PT_BEAM)
{
if (!free_beams)
break;
if (b)
{
b = b->next = free_beams;
free_beams = free_beams->next;
}
else
{
b = bfirst = free_beams;
free_beams = free_beams->next;
}
b->texture_s = i; // TODO: FIX THIS NUMBER
b->flags = 0;
b->p = p;
VectorClear(b->dir);
}
free_particles = p->next;
p->next = ptype->particles;
ptype->particles = p;
p->die = ptype->randdie*frandom();
p->scale = ptype->scale+ptype->randscale*frandom();
if (ptype->die)
p->alpha = ptype->alpha-p->die*(ptype->alpha/ptype->die)*ptype->alphachange;
else
p->alpha = ptype->alpha;
p->color = 0;
p->nextemit = particletime + ptype->emitstart - p->die;
if (ptype->emittime < 0)
p->trailstate = NULL;
p->rotationspeed = ptype->rotationmin + frandom()*ptype->rotationrand;
p->angle = ptype->rotationstartmin + frandom()*ptype->rotationstartrand;
if (ptype->colorindex >= 0)
{
int cidx;
cidx = ptype->colorrand > 0 ? rand() % ptype->colorrand : 0;
cidx = ptype->colorindex + cidx;
if (cidx > 255)
p->alpha = p->alpha / 2; // Hexen 2 style transparency
cidx = d_8to24rgbtable[cidx & 0xff];
p->rgb[0] = (cidx & 0xff) * (1/255.0);
p->rgb[1] = (cidx >> 8 & 0xff) * (1/255.0);
p->rgb[2] = (cidx >> 16 & 0xff) * (1/255.0);
}
else
VectorCopy(ptype->rgb, p->rgb);
// use org temporarily for rgbsync
p->org[2] = frandom();
p->org[0] = p->org[2]*ptype->rgbrandsync[0] + frandom()*(1-ptype->rgbrandsync[0]);
p->org[1] = p->org[2]*ptype->rgbrandsync[1] + frandom()*(1-ptype->rgbrandsync[1]);
p->org[2] = p->org[2]*ptype->rgbrandsync[2] + frandom()*(1-ptype->rgbrandsync[2]);
p->rgb[0] += p->org[0]*ptype->rgbrand[0] + ptype->rgbchange[0]*p->die;
p->rgb[1] += p->org[1]*ptype->rgbrand[1] + ptype->rgbchange[1]*p->die;
p->rgb[2] += p->org[2]*ptype->rgbrand[2] + ptype->rgbchange[2]*p->die;
// randomvel
p->vel[0] = crandom()*ptype->randomvel;
p->vel[1] = crandom()*ptype->randomvel;
p->vel[2] = crandom()*ptype->randomvelvert;
// handle spawn modes (org/vel)
switch (ptype->spawnmode)
{
case SM_BOX:
ofsvec[0] = crandom();
ofsvec[1] = crandom();
ofsvec[2] = crandom();
arsvec[0] = ofsvec[0]*ptype->areaspread;
arsvec[1] = ofsvec[1]*ptype->areaspread;
arsvec[2] = ofsvec[2]*ptype->areaspreadvert;
break;
case SM_TELEBOX:
ofsvec[0] = k;
ofsvec[1] = j;
ofsvec[2] = l+4;
VectorNormalize(ofsvec);
VectorScale(ofsvec, 1.0-(frandom())*m, ofsvec);
// org is just like the original
arsvec[0] = j + (rand()%spawnspc);
arsvec[1] = k + (rand()%spawnspc);
arsvec[2] = l + (rand()%spawnspc);
// advance telebox loop
j += spawnspc;
if (j >= ptype->areaspread)
{
j = -ptype->areaspread;
k += spawnspc;
if (k >= ptype->areaspread)
{
k = -ptype->areaspread;
l += spawnspc;
if (l >= ptype->areaspreadvert)
l = -ptype->areaspreadvert;
}
}
break;
case SM_LAVASPLASH:
// calc directions, org with temp vector
ofsvec[0] = k + (rand()%spawnspc);
ofsvec[1] = j + (rand()%spawnspc);
ofsvec[2] = 256;
arsvec[0] = ofsvec[0];
arsvec[1] = ofsvec[1];
arsvec[2] = frandom()*ptype->areaspreadvert;
VectorNormalize(ofsvec);
VectorScale(ofsvec, 1.0-(frandom())*m, ofsvec);
// advance splash loop
j += spawnspc;
if (j >= ptype->areaspread)
{
j = -ptype->areaspread;
k += spawnspc;
if (k >= ptype->areaspread)
k = -ptype->areaspread;
}
break;
case SM_UNICIRCLE:
ofsvec[0] = cos(m*i);
ofsvec[1] = sin(m*i);
ofsvec[2] = 0;
VectorScale(ofsvec, ptype->areaspread, arsvec);
break;
case SM_FIELD:
arsvec[0] = cl.time * (avelocities[i][0] + m);
arsvec[1] = cl.time * (avelocities[i][1] + m);
arsvec[2] = cos(arsvec[1]);
ofsvec[0] = arsvec[2]*cos(arsvec[0]);
ofsvec[1] = arsvec[2]*sin(arsvec[0]);
ofsvec[2] = -sin(arsvec[1]);
arsvec[0] = r_avertexnormals[j][0]*ptype->areaspread + ofsvec[0]*BEAMLENGTH;
arsvec[1] = r_avertexnormals[j][1]*ptype->areaspread + ofsvec[1]*BEAMLENGTH;
arsvec[2] = r_avertexnormals[j][2]*ptype->areaspreadvert + ofsvec[2]*BEAMLENGTH;
VectorNormalize(ofsvec);
j++;
if (j >= NUMVERTEXNORMALS)
{
j = 0;
m += 0.1762891; // some BS number to try to "randomize" things
}
break;
default: // SM_BALL, SM_CIRCLE
ofsvec[0] = hrandom();
ofsvec[1] = hrandom();
if (ptype->areaspreadvert)
ofsvec[2] = hrandom();
else
ofsvec[2] = 0;
VectorNormalize(ofsvec);
if (ptype->spawnmode != SM_CIRCLE)
VectorScale(ofsvec, frandom(), ofsvec);
arsvec[0] = ofsvec[0]*ptype->areaspread;
arsvec[1] = ofsvec[1]*ptype->areaspread;
arsvec[2] = ofsvec[2]*ptype->areaspreadvert;
break;
}
// apply arsvec+ofsvec
if (dir)
{
p->vel[0] += dir[0]*ptype->veladd+ofsvec[0]*ptype->offsetspread;
p->vel[1] += dir[1]*ptype->veladd+ofsvec[1]*ptype->offsetspread;
p->vel[2] += dir[2]*ptype->veladd+ofsvec[2]*ptype->offsetspreadvert;
}
else
{
p->vel[0] += ofsvec[0]*ptype->offsetspread;
p->vel[1] += ofsvec[1]*ptype->offsetspread;
p->vel[2] += ofsvec[2]*ptype->offsetspreadvert - ptype->veladd;
}
p->org[0] = org[0] + arsvec[0];
p->org[1] = org[1] + arsvec[1];
p->org[2] = org[2] + arsvec[2] + ptype->offsetup;
p->die = particletime + ptype->die - p->die;
}
// update beam list
if (ptype->type == PT_BEAM)
{
if (b)
{
// update dir for bfirst for certain modes since it will never get updated
switch (ptype->spawnmode)
{
case SM_UNICIRCLE:
// kinda hackish here, assuming ofsvec contains the point at i-1
arsvec[0] = cos(m*(i-2));
arsvec[1] = sin(m*(i-2));
arsvec[2] = 0;
VectorSubtract(ofsvec, arsvec, bfirst->dir);
VectorNormalize(bfirst->dir);
break;
default:
break;
}
b->flags |= BS_NODRAW;
b->next = ptype->beams;
ptype->beams = bfirst;
}
}
// go to next associated effect
if (ptype->assoc < 0)
break;
ptype = &part_type[ptype->assoc];
}
return 0;
}
/*
===============
R_RunParticleEffect
===============
*/
void P_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count)
{
int ptype;
ptype = P_FindParticleType(va("pe_%i", color));
if (P_RunParticleEffectType(org, dir, count, ptype))
{
color &= ~0x7;
if (count > 130 && part_type[pe_size3].loaded)
{
part_type[pe_size3].colorindex = color;
part_type[pe_size3].colorrand = 8;
P_RunParticleEffectType(org, dir, count, pe_size3);
return;
}
if (count > 20 && part_type[pe_size2].loaded)
{
part_type[pe_size2].colorindex = color;
part_type[pe_size2].colorrand = 8;
P_RunParticleEffectType(org, dir, count, pe_size2);
return;
}
part_type[pe_default].colorindex = color;
part_type[pe_default].colorrand = 8;
P_RunParticleEffectType(org, dir, count, pe_default);
return;
}
}
//h2 stylie
void P_RunParticleEffect2 (vec3_t org, vec3_t dmin, vec3_t dmax, int color, int effect, int count)
{
int i, j;
float num;
float invcount;
vec3_t nvel;
int ptype = P_FindParticleType(va("pe2_%i_%i", effect, color));
if (ptype < 0)
{
ptype = P_FindParticleType(va("pe2_%i", effect));
if (ptype < 0)
ptype = pe_default;
part_type[ptype].colorindex = color;
}
invcount = 1/part_type[ptype].count; // using this to get R_RPET to always spawn 1
count = count * part_type[ptype].count;
for (i=0 ; i<count ; i++)
{
if (!free_particles)
return;
for (j=0 ; j<3 ; j++)
{
num = rand() / (float)RAND_MAX;
nvel[j] = dmin[j] + ((dmax[j] - dmin[j]) * num);
}
P_RunParticleEffectType(org, nvel, invcount, ptype);
}
}
/*
===============
R_RunParticleEffect3
===============
*/
//h2 stylie
void P_RunParticleEffect3 (vec3_t org, vec3_t box, int color, int effect, int count)
{
int i, j;
vec3_t nvel;
float num;
float invcount;
int ptype = P_FindParticleType(va("pe3_%i_%i", effect, color));
if (ptype < 0)
{
ptype = P_FindParticleType(va("pe3_%i", effect));
if (ptype < 0)
ptype = pe_default;
part_type[ptype].colorindex = color;
}
invcount = 1/part_type[ptype].count; // using this to get R_RPET to always spawn 1
count = count * part_type[ptype].count;
for (i=0 ; i<count ; i++)
{
if (!free_particles)
return;
for (j=0 ; j<3 ; j++)
{
num = rand() / (float)RAND_MAX;
nvel[j] = (box[j] * num * 2) - box[j];
}
P_RunParticleEffectType(org, nvel, invcount, ptype);
}
}
/*
===============
R_RunParticleEffect4
===============
*/
//h2 stylie
void P_RunParticleEffect4 (vec3_t org, float radius, int color, int effect, int count)
{
int i, j;
vec3_t nvel;
float num;
float invcount;
int ptype = P_FindParticleType(va("pe4_%i_%i", effect, color));
if (ptype < 0)
{
ptype = P_FindParticleType(va("pe4_%i", effect));
if (ptype < 0)
ptype = pe_default;
part_type[ptype].colorindex = color;
}
invcount = 1/part_type[ptype].count; // using this to get R_RPET to always spawn 1
count = count * part_type[ptype].count;
for (i=0 ; i<count ; i++)
{
if (!free_particles)
return;
for (j=0 ; j<3 ; j++)
{
num = rand() / (float)RAND_MAX;
nvel[j] = (radius * num * 2) - radius;
}
P_RunParticleEffectType(org, nvel, invcount, ptype);
}
}
/*
===============
R_LavaSplash
===============
*/
void P_LavaSplash (vec3_t org)
{
P_RunParticleEffectType(org, NULL, 1, pt_lavasplash);
}
/*
===============
R_TeleportSplash
===============
*/
void CLQ2_BlasterTrail (vec3_t start, vec3_t end)
{
P_ParticleTrail(start, end, rt_blastertrail, NULL);
}
void MakeNormalVectors (vec3_t forward, vec3_t right, vec3_t up)
{
float d;
// this rotate and negat guarantees a vector
// not colinear with the original
right[1] = -forward[0];
right[2] = forward[1];
right[0] = forward[2];
d = DotProduct (right, forward);
VectorMA (right, -d, forward, right);
VectorNormalize (right);
CrossProduct (right, forward, up);
}
void CLQ2_RailTrail (vec3_t start, vec3_t end)
{
P_ParticleTrail(start, end, rt_railtrail, NULL);
}
// Trailstate functions
static void P_CleanTrailstate(trailstate_t *ts)
{
// clear LASTSEG flag from lastbeam so it can be reused
if (ts->lastbeam)
{
ts->lastbeam->flags &= ~BS_LASTSEG;
ts->lastbeam->flags |= BS_NODRAW;
}
// clean structure
memset(ts, 0, sizeof(trailstate_t));
}
void P_DelinkTrailstate(trailstate_t **tsk)
{
trailstate_t *ts;
trailstate_t *assoc;
if (*tsk == NULL)
return; // not linked to a trailstate
ts = *tsk; // store old pointer
*tsk = NULL; // clear pointer
if (ts->key != tsk)
return; // prevent overwrite
assoc = ts->assoc; // store assoc
P_CleanTrailstate(ts); // clean directly linked trailstate
// clean trailstates assoc linked
while (assoc)
{
ts = assoc->assoc;
P_CleanTrailstate(assoc);
assoc = ts;
}
}
static trailstate_t *P_NewTrailstate(trailstate_t **key)
{
trailstate_t *ts;
// bounds check here in case r_numtrailstates changed
if (ts_cycle >= r_numtrailstates)
ts_cycle = 0;
// get trailstate
ts = trailstates + ts_cycle;
// clear trailstate
P_CleanTrailstate(ts);
// set key
ts->key = key;
// advance index cycle
ts_cycle++;
// return clean trailstate
return ts;
}
int P_ParticleTrail (vec3_t startpos, vec3_t end, int type, trailstate_t **tsk)
{
vec3_t vec, vstep, right, up, start;
float len;
int tcount;
particle_t *p;
part_type_t *ptype = &part_type[type];
beamseg_t *b;
beamseg_t *bfirst;
trailstate_t *ts;
float veladd = -ptype->veladd;
float randvel = ptype->randomvel;
float step;
float stop;
float tdegree = 2*M_PI/256; /* MSVC whine */
if (!ptype->loaded)
return 1;
VectorCopy(startpos, start);
// trailstate allocation/deallocation
if (tsk)
{
// if *tsk = NULL get a new one
if (*tsk == NULL)
{
ts = P_NewTrailstate(tsk);
*tsk = ts;
}
else
{
ts = *tsk;
if (ts->key != tsk) // trailstate was overwritten
{
ts = P_NewTrailstate(tsk); // so get a new one
*tsk = ts;
}
}
}
else
ts = NULL;
if (ptype->assoc>=0)
{
if (ts)
P_ParticleTrail(start, end, ptype->assoc, &(ts->assoc));
else
P_ParticleTrail(start, end, ptype->assoc, NULL);
}
// time limit for trails
if (ptype->timelimit && ts)
{
if (ts->statetime > particletime)
return 0; // timelimit still in effect
ts->statetime = particletime + ptype->timelimit; // record old time
ts = NULL; // clear trailstate so we don't save length/lastseg
}
if (!ptype->die)
ts = NULL;
step = 1/ptype->count;
if (step < 0.01)
step = 0.01;
VectorSubtract (end, start, vec);
len = VectorNormalize (vec);
VectorScale(vec, step, vstep);
// add offset
start[2] += ptype->offsetup;
if (ptype->spawnmode == SM_SPIRAL)
{
VectorVectors(vec, right, up);
// precalculate degree of rotation
if (ptype->spawnparam1)
tdegree = 2*M_PI/ptype->spawnparam1; /* distance per rotation inversed */
}
// store last stop here for lack of a better solution besides vectors
if (ts)
{
ts->laststop = stop = ts->laststop + len; //when to stop
len = ts->lastdist;
}
else
{
stop = len;
len = 0;
}
// len = ts->lastdist/step;
// len = (len - (int)len)*step;
// VectorMA (start, -len, vec, start);
b = bfirst = NULL;
while (len < stop)
{
len += step;
if (!free_particles)
{
len = stop;
break;
}
p = free_particles;
if (ptype->type == PT_BEAM)
{
if (!free_beams)
{
len = stop;
break;
}
if (b)
{
b = b->next = free_beams;
free_beams = free_beams->next;
}
else
{
b = bfirst = free_beams;
free_beams = free_beams->next;
}
b->texture_s = len; // not sure how to calc this
b->flags = 0;
b->p = p;
VectorCopy(vec, b->dir);
}
free_particles = p->next;
p->next = ptype->particles;
ptype->particles = p;
p->die = ptype->randdie*frandom();
p->scale = ptype->scale+ptype->randscale*frandom();
if (ptype->die)
p->alpha = ptype->alpha-p->die*(ptype->alpha/ptype->die)*ptype->alphachange;
else
p->alpha = ptype->alpha;
p->color = 0;
// if (ptype->spawnmode == SM_TRACER)
if (ptype->spawnparam1)
tcount = (int)(len * ptype->count / ptype->spawnparam1);
else
tcount = (int)(len * ptype->count);
if (ptype->colorindex >= 0)
{
int cidx;
cidx = ptype->colorrand > 0 ? rand() % ptype->colorrand : 0;
if (ptype->citracer) // colorindex behavior as per tracers in std Q1
cidx += ((tcount & 4) << 1);
cidx = ptype->colorindex + cidx;
if (cidx > 255)
p->alpha = p->alpha / 2;
cidx = d_8to24rgbtable[cidx & 0xff];
p->rgb[0] = (cidx & 0xff) * (1/255.0);
p->rgb[1] = (cidx >> 8 & 0xff) * (1/255.0);
p->rgb[2] = (cidx >> 16 & 0xff) * (1/255.0);
}
else
VectorCopy(ptype->rgb, p->rgb);
// use org temporarily for rgbsync
p->org[2] = frandom();
p->org[0] = p->org[2]*ptype->rgbrandsync[0] + frandom()*(1-ptype->rgbrandsync[0]);
p->org[1] = p->org[2]*ptype->rgbrandsync[1] + frandom()*(1-ptype->rgbrandsync[1]);
p->org[2] = p->org[2]*ptype->rgbrandsync[2] + frandom()*(1-ptype->rgbrandsync[2]);
p->rgb[0] += p->org[0]*ptype->rgbrand[0] + ptype->rgbchange[0]*p->die;
p->rgb[1] += p->org[1]*ptype->rgbrand[1] + ptype->rgbchange[1]*p->die;
p->rgb[2] += p->org[2]*ptype->rgbrand[2] + ptype->rgbchange[2]*p->die;
VectorCopy (vec3_origin, p->vel);
p->nextemit = particletime + ptype->emitstart - p->die;
if (ptype->emittime < 0)
p->trailstate = NULL; // init trailstate
p->rotationspeed = ptype->rotationmin + frandom()*ptype->rotationrand;
p->angle = ptype->rotationstartmin + frandom()*ptype->rotationstartrand;
switch(ptype->spawnmode)
{
case SM_TRACER:
if (tcount & 1)
{
p->vel[0] = vec[1]*ptype->offsetspread;
p->vel[1] = -vec[0]*ptype->offsetspread;
p->org[0] = vec[1]*ptype->areaspread;
p->org[1] = -vec[0]*ptype->areaspread;
}
else
{
p->vel[0] = -vec[1]*ptype->offsetspread;
p->vel[1] = vec[0]*ptype->offsetspread;
p->org[0] = -vec[1]*ptype->areaspread;
p->org[1] = vec[0]*ptype->areaspread;
}
p->vel[0] += vec[0]*veladd+crandom()*randvel;
p->vel[1] += vec[1]*veladd+crandom()*randvel;
p->vel[2] = vec[2]*veladd+crandom()*randvel;
p->org[0] += start[0];
p->org[1] += start[1];
p->org[2] = start[2];
break;
case SM_SPIRAL:
{
float tsin, tcos;
tcos = cos(len*tdegree)*ptype->areaspread;
tsin = sin(len*tdegree)*ptype->areaspread;
p->org[0] = start[0] + right[0]*tcos + up[0]*tsin;
p->org[1] = start[1] + right[1]*tcos + up[1]*tsin;
p->org[2] = start[2] + right[2]*tcos + up[2]*tsin;
tcos = cos(len*tdegree)*ptype->offsetspread;
tsin = sin(len*tdegree)*ptype->offsetspread;
p->vel[0] = vec[0]*veladd+crandom()*randvel + right[0]*tcos + up[0]*tsin;
p->vel[1] = vec[1]*veladd+crandom()*randvel + right[1]*tcos + up[1]*tsin;
p->vel[2] = vec[2]*veladd+crandom()*randvel + right[2]*tcos + up[2]*tsin;
}
break;
default:
p->org[0] = crandom();
p->org[1] = crandom();
p->org[2] = crandom();
p->vel[0] = vec[0]*veladd+crandom()*randvel + p->org[0]*ptype->offsetspread;
p->vel[1] = vec[1]*veladd+crandom()*randvel + p->org[1]*ptype->offsetspread;
p->vel[2] = vec[2]*veladd+crandom()*randvel + p->org[2]*ptype->offsetspreadvert;
p->org[0] = p->org[0]*ptype->areaspread + start[0];
p->org[1] = p->org[1]*ptype->areaspread + start[1];
p->org[2] = p->org[2]*ptype->areaspreadvert + start[2];
break;
}
VectorAdd (start, vstep, start);
p->die = particletime + ptype->die - p->die;
}
if (ts)
{
ts->lastdist = len;
// update beamseg list
if (ptype->type == PT_BEAM)
{
if (b)
{
if (ptype->beams)
{
if (ts->lastbeam)
{
b->next = ts->lastbeam->next;
ts->lastbeam->next = bfirst;
ts->lastbeam->flags &= ~BS_LASTSEG;
}
else
{
b->next = ptype->beams;
ptype->beams = bfirst;
}
}
else
{
ptype->beams = bfirst;
b->next = NULL;
}
b->flags |= BS_LASTSEG;
ts->lastbeam = b;
}
if ((!free_particles || !free_beams) && ts->lastbeam)
{
ts->lastbeam->flags &= ~BS_LASTSEG;
ts->lastbeam->flags |= BS_NODRAW;
ts->lastbeam = NULL;
}
}
}
else if (ptype->type == PT_BEAM)
{
if (b)
{
b->flags |= BS_NODRAW;
b->next = ptype->beams;
ptype->beams = bfirst;
}
}
return 0;
}
void P_TorchEffect (vec3_t pos, int type)
{
#ifdef SIDEVIEWS
if (r_secondaryview) //this is called when the models are actually drawn.
return;
#endif
if (cl.paused)
return;
P_RunParticleEffectType(pos, NULL, host_frametime, type);
}
void CLQ2_BubbleTrail (vec3_t start, vec3_t end)
{
P_ParticleTrail(start, end, rt_bubbletrail, NULL);
}
#ifdef Q2BSPS
qboolean Q2TraceLineN (vec3_t start, vec3_t end, vec3_t impact, vec3_t normal)
{
vec3_t nul = {0,0,0};
trace_t trace = CM_BoxTrace(start, end, nul, nul, pmove.physents[0].model->hulls[0].firstclipnode, MASK_SOLID);
if (trace.fraction < 1)
{
VectorCopy (trace.plane.normal, normal);
VectorCopy (trace.endpos, impact);
return true;
}
return false;
}
#endif
qboolean DoomTraceLineN (vec3_t start, vec3_t end, vec3_t impact, vec3_t normal)
{
return false;
}
#if 1 //extra code to make em bounce of doors.
qboolean TraceLineN (vec3_t start, vec3_t end, vec3_t impact, vec3_t normal)
{
trace_t trace;
float len, bestlen;
int i;
vec3_t delta, ts, te;
physent_t *pe;
hull_t *hull;
qboolean clipped=false;
memset (&trace, 0, sizeof(trace));
VectorSubtract(end, start, delta);
bestlen = Length(delta);
VectorCopy (end, impact);
for (i=0 ; i< pmove.numphysent ; i++)
{
pe = &pmove.physents[i];
if (pe->model)
{
hull = &pe->model->hulls[0];
memset (&trace, 0, sizeof(trace));
VectorSubtract(start, pe->origin, ts);
VectorSubtract(end, pe->origin, te);
if (!pe->model->funcs.Trace(pe->model, 0, 0, ts, te, vec3_origin, vec3_origin, &trace))
{
VectorSubtract(trace.endpos, ts, delta);
len = Length(delta);
if (len < bestlen)
{
bestlen = len;
VectorCopy (trace.plane.normal, normal);
VectorAdd (pe->origin, trace.endpos, impact);
}
clipped=true;
}
if (trace.startsolid)
{
VectorNormalize(delta);
normal[0] = -delta[0];
normal[1] = -delta[1];
normal[2] = -delta[2];
VectorCopy (start, impact);
return true;
}
}
}
if (clipped)
{
return true;
}
else
{
return false;
}
}
#else //basic (faster)
qboolean TraceLineN (vec3_t start, vec3_t end, vec3_t impact, vec3_t normal)
{
pmtrace_t trace;
memset (&trace, 0, sizeof(trace));
trace.fraction = 1;
if (cl.worldmodel->hulls->funcs.RecursiveHullCheck (cl.worldmodel->hulls, 0, 0, 1, start, end, &trace))
return false;
if (trace.startsolid)
return true;
VectorCopy (trace.endpos, impact);
VectorCopy (trace.plane.normal, normal);
return true;
}
#endif
part_type_t *lasttype;
static vec3_t pright, pup;
float pframetime;
#ifdef RGLQUAKE
void GL_DrawTexturedParticle(particle_t *p, part_type_t *type)
{
float x,y;
float scale;
if (lasttype != type)
{
lasttype = type;
qglEnd();
qglEnable(GL_TEXTURE_2D);
GL_Bind(type->texturenum);
if (type->blendmode == BM_ADD) //addative
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
// else if (type->blendmode == BM_SUBTRACT) //subtractive
// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
else
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglShadeModel(GL_FLAT);
qglBegin(GL_QUADS);
}
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];
scale = (scale*p->scale)*(type->invscalefactor) + p->scale * (type->scalefactor*250);
if (scale < 20)
scale = 0.25;
else
scale = 0.25 + scale * 0.001;
qglColor4f (p->rgb[0],
p->rgb[1],
p->rgb[2],
p->alpha);
if (p->angle)
{
x = sin(p->angle)*scale;
y = cos(p->angle)*scale;
}
else
{
x = 0;
y = scale;
}
qglTexCoord2f(0,0);
qglVertex3f (p->org[0] - x*pright[0] - y*pup[0], p->org[1] - x*pright[1] - y*pup[1], p->org[2] - x*pright[2] - y*pup[2]);
qglTexCoord2f(0,1);
qglVertex3f (p->org[0] - y*pright[0] + x*pup[0], p->org[1] - y*pright[1] + x*pup[1], p->org[2] - y*pright[2] + x*pup[2]);
qglTexCoord2f(1,1);
qglVertex3f (p->org[0] + x*pright[0] + y*pup[0], p->org[1] + x*pright[1] + y*pup[1], p->org[2] + x*pright[2] + y*pup[2]);
qglTexCoord2f(1,0);
qglVertex3f (p->org[0] + y*pright[0] - x*pup[0], p->org[1] + y*pright[1] - x*pup[1], p->org[2] + y*pright[2] - x*pup[2]);
}
void GL_DrawSketchParticle(particle_t *p, part_type_t *type)
{
float x,y;
float scale;
int quant;
if (lasttype != type)
{
lasttype = type;
qglEnd();
qglDisable(GL_TEXTURE_2D);
GL_Bind(type->texturenum);
// if (type->blendmode == BM_ADD) //addative
// glBlendFunc(GL_SRC_ALPHA, GL_ONE);
// else if (type->blendmode == BM_SUBTRACT) //subtractive
// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// else
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglShadeModel(GL_SMOOTH);
qglBegin(GL_LINES);
}
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];
scale = (scale*p->scale)*(type->invscalefactor) + p->scale * (type->scalefactor*250);
if (scale < 20)
scale = 0.25;
else
scale = 0.25 + scale * 0.001;
qglColor4f (p->rgb[0]/2,
p->rgb[1]/2,
p->rgb[2]/2,
p->alpha*2);
quant = scale;
if (p->angle)
{
x = sin(p->angle)*scale;
y = cos(p->angle)*scale;
}
else
{
x = 0;
y = scale;
}
qglVertex3f (p->org[0] - x*pright[0] - y*pup[0], p->org[1] - x*pright[1] - y*pup[1], p->org[2] - x*pright[2] - y*pup[2]);
qglVertex3f (p->org[0] + x*pright[0] + y*pup[0], p->org[1] + x*pright[1] + y*pup[1], p->org[2] + x*pright[2] + y*pup[2]);
qglVertex3f (p->org[0] + y*pright[0] - x*pup[0], p->org[1] + y*pright[1] - x*pup[1], p->org[2] + y*pright[2] - x*pup[2]);
qglVertex3f (p->org[0] - y*pright[0] + x*pup[0], p->org[1] - y*pright[1] + x*pup[1], p->org[2] - y*pright[2] + x*pup[2]);
}
void GL_DrawTrifanParticle(particle_t *p, part_type_t *type)
{
int i;
vec3_t v;
float scale;
qglEnd();
if (lasttype != type)
{
lasttype = type;
qglDisable(GL_TEXTURE_2D);
if (type->blendmode == BM_ADD) //addative
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
// else if (type->blendmode == BM_SUBTRACT) //subtractive
// qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
else
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglShadeModel(GL_SMOOTH);
}
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];
scale = (scale*p->scale)*(type->invscalefactor) + p->scale * (type->scalefactor*250);
if (scale < 20)
scale = 0.05;
else
scale = 0.05 + scale * 0.0001;
/*
if ((p->vel[0]*p->vel[0]+p->vel[1]*p->vel[1]+p->vel[2]*p->vel[2])*2*scale > 30*30)
scale = 1+1/30/Length(p->vel)*2;*/
qglBegin (GL_TRIANGLE_FAN);
qglColor4f (p->rgb[0],
p->rgb[1],
p->rgb[2],
p->alpha);
qglVertex3fv (p->org);
qglColor4f (p->rgb[0]/2,
p->rgb[1]/2,
p->rgb[2]/2,
0);
for (i=7 ; i>=0 ; i--)
{
v[0] = p->org[0] - p->vel[0]*scale + vright[0]*cost[i%7]*p->scale + vup[0]*sint[i%7]*p->scale;
v[1] = p->org[1] - p->vel[1]*scale + vright[1]*cost[i%7]*p->scale + vup[1]*sint[i%7]*p->scale;
v[2] = p->org[2] - p->vel[2]*scale + vright[2]*cost[i%7]*p->scale + vup[2]*sint[i%7]*p->scale;
qglVertex3fv (v);
}
qglEnd ();
qglBegin (GL_TRIANGLES);
}
void GL_DrawLineSparkParticle(particle_t *p, part_type_t *type)
{
if (lasttype != type)
{
lasttype = type;
qglEnd();
qglDisable(GL_TEXTURE_2D);
GL_Bind(type->texturenum);
if (type->blendmode == BM_ADD) //addative
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
// else if (type->blendmode == BM_SUBTRACT) //subtractive
// qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
else
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglShadeModel(GL_SMOOTH);
qglBegin(GL_LINES);
}
qglColor4f (p->rgb[0],
p->rgb[1],
p->rgb[2],
p->alpha);
qglVertex3f (p->org[0], p->org[1], p->org[2]);
qglColor4f (p->rgb[0],
p->rgb[1],
p->rgb[2],
0);
qglVertex3f (p->org[0]-p->vel[0]/10, p->org[1]-p->vel[1]/10, p->org[2]-p->vel[2]/10);
}
void GL_DrawTexturedSparkParticle(particle_t *p, part_type_t *type)
{
vec3_t v, cr, o2, point;
if (lasttype != type)
{
lasttype = type;
qglEnd();
qglEnable(GL_TEXTURE_2D);
GL_Bind(type->texturenum);
if (type->blendmode == BM_ADD) //addative
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
// else if (type->blendmode == BM_SUBTRACT) //subtractive
// qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
else
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglShadeModel(GL_SMOOTH);
qglBegin(GL_QUADS);
}
qglColor4f (p->rgb[0],
p->rgb[1],
p->rgb[2],
p->alpha);
VectorSubtract(r_refdef.vieworg, p->org, v);
CrossProduct(v, p->vel, cr);
VectorNormalize(cr);
VectorMA(p->org, -p->scale/2, cr, point);
qglTexCoord2f(0, 0);
qglVertex3fv(point);
VectorMA(p->org, p->scale/2, cr, point);
qglTexCoord2f(0, 1);
qglVertex3fv(point);
VectorMA(p->org, 0.1, p->vel, o2);
VectorSubtract(r_refdef.vieworg, o2, v);
CrossProduct(v, p->vel, cr);
VectorNormalize(cr);
VectorMA(o2, p->scale/2, cr, point);
qglTexCoord2f(1, 1);
qglVertex3fv(point);
VectorMA(o2, -p->scale/2, cr, point);
qglTexCoord2f(1, 0);
qglVertex3fv(point);
}
void GL_DrawSketchSparkParticle(particle_t *p, part_type_t *type)
{
if (lasttype != type)
{
lasttype = type;
qglEnd();
qglDisable(GL_TEXTURE_2D);
GL_Bind(type->texturenum);
if (type->blendmode == BM_ADD) //addative
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
// else if (type->blendmode == BM_SUBTRACT) //subtractive
// qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
else
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglShadeModel(GL_SMOOTH);
qglBegin(GL_LINES);
}
qglColor4f (p->rgb[0],
p->rgb[1],
p->rgb[2],
p->alpha);
qglVertex3f (p->org[0], p->org[1], p->org[2]);
qglColor4f (p->rgb[0],
p->rgb[1],
p->rgb[2],
0);
qglVertex3f (p->org[0]-p->vel[0]/10, p->org[1]-p->vel[1]/10, p->org[2]-p->vel[2]/10);
}
void GL_DrawParticleBeam_Textured(beamseg_t *b, part_type_t *type)
{
vec3_t v, point;
vec3_t cr;
beamseg_t *c;
particle_t *p;
particle_t *q;
float ts;
// if (!b->next)
// return;
c = b->next;
q = c->p;
// if (!q)
// return;
p = b->p;
// if (!p)
// return;
if (lasttype != type)
{
lasttype = type;
qglEnd();
qglEnable(GL_TEXTURE_2D);
GL_Bind(type->texturenum);
if (type->blendmode == BM_ADD) //addative
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
// else if (type->blendmode == BM_SUBTRACT) //subtractive
// qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
else
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglShadeModel(GL_SMOOTH);
qglBegin(GL_QUADS);
}
qglColor4f(q->rgb[0],
q->rgb[1],
q->rgb[2],
q->alpha);
// qglBegin(GL_LINE_LOOP);
VectorSubtract(r_refdef.vieworg, q->org, v);
VectorNormalize(v);
CrossProduct(c->dir, v, cr);
ts = (c->texture_s*type->rotationstartmin + particletime*type->rotationmin)/754;
VectorMA(q->org, -q->scale, cr, point);
qglTexCoord2f(ts, 0);
qglVertex3fv(point);
VectorMA(q->org, q->scale, cr, point);
qglTexCoord2f(ts, 1);
qglVertex3fv(point);
qglColor4f(p->rgb[0],
p->rgb[1],
p->rgb[2],
p->alpha);
VectorSubtract(r_refdef.vieworg, p->org, v);
VectorNormalize(v);
CrossProduct(b->dir, v, cr); // replace with old p->dir?
ts = (b->texture_s*type->rotationstartmin + particletime*type->rotationmin)/754;
VectorMA(p->org, p->scale, cr, point);
qglTexCoord2f(ts, 1);
qglVertex3fv(point);
VectorMA(p->org, -p->scale, cr, point);
qglTexCoord2f(ts, 0);
qglVertex3fv(point);
// qglEnd();
}
void GL_DrawParticleBeam_Untextured(beamseg_t *b, part_type_t *type)
{
vec3_t v;
vec3_t cr;
beamseg_t *c;
particle_t *p;
particle_t *q;
vec3_t point[4];
// if (!b->next)
// return;
c = b->next;
q = c->p;
// if (!q)
// return;
p = b->p;
// if (!p)
// return;
if (lasttype != type)
{
lasttype = type;
qglEnd();
qglDisable(GL_TEXTURE_2D);
GL_Bind(type->texturenum);
if (type->blendmode == BM_ADD) //addative
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
// else if (type->blendmode == BM_SUBTRACT) //subtractive
// qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
else
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglShadeModel(GL_SMOOTH);
qglBegin(GL_QUADS);
}
// qglBegin(GL_LINE_LOOP);
VectorSubtract(r_refdef.vieworg, q->org, v);
VectorNormalize(v);
CrossProduct(c->dir, v, cr);
VectorMA(q->org, -q->scale, cr, point[0]);
VectorMA(q->org, q->scale, cr, point[1]);
VectorSubtract(r_refdef.vieworg, p->org, v);
VectorNormalize(v);
CrossProduct(b->dir, v, cr); // replace with old p->dir?
VectorMA(p->org, p->scale, cr, point[2]);
VectorMA(p->org, -p->scale, cr, point[3]);
//one half
//back out
//back in
//front in
//front out
qglColor4f(q->rgb[0],
q->rgb[1],
q->rgb[2],
0);
qglVertex3fv(point[0]);
qglColor4f(q->rgb[0],
q->rgb[1],
q->rgb[2],
q->alpha);
qglVertex3fv(q->org);
qglColor4f(p->rgb[0],
p->rgb[1],
p->rgb[2],
p->alpha);
qglVertex3fv(p->org);
qglColor4f(p->rgb[0],
p->rgb[1],
p->rgb[2],
0);
qglVertex3fv(point[3]);
//front out
//front in
//back in
//back out
qglColor4f(p->rgb[0],
p->rgb[1],
p->rgb[2],
0);
qglVertex3fv(point[2]);
qglColor4f(p->rgb[0],
p->rgb[1],
p->rgb[2],
p->alpha);
qglVertex3fv(p->org);
qglColor4f(q->rgb[0],
q->rgb[1],
q->rgb[2],
q->alpha);
qglVertex3fv(q->org);
qglColor4f(q->rgb[0],
q->rgb[1],
q->rgb[2],
0);
qglVertex3fv(point[1]);
// qglEnd();
}
void GL_DrawClippedDecal(clippeddecal_t *d, part_type_t *type)
{
if (lasttype != type)
{
lasttype = type;
qglEnd();
qglEnable(GL_TEXTURE_2D);
GL_Bind(type->texturenum);
if (type->blendmode == BM_ADD) //addative
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
// else if (type->blendmode == BM_SUBTRACT) //subtractive
// qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
else
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglShadeModel(GL_SMOOTH);
qglBegin(GL_TRIANGLES);
}
qglColor4f(d->rgb[0],
d->rgb[1],
d->rgb[2],
d->alpha);
qglTexCoord2fv(d->texcoords[0]);
qglVertex3fv(d->vertex[0]);
qglTexCoord2fv(d->texcoords[1]);
qglVertex3fv(d->vertex[1]);
qglTexCoord2fv(d->texcoords[2]);
qglVertex3fv(d->vertex[2]);
}
#endif
#ifdef SWQUAKE
void SWD_DrawParticleSpark(particle_t *p, part_type_t *type)
{
float speed;
vec3_t src, dest;
int r,g,b; //if you have a cpu with mmx, good for you...
r = p->rgb[0]*255;
if (r < 0)
r = 0;
else if (r > 255)
r = 255;
g = p->rgb[1]*255;
if (g < 0)
g = 0;
else if (g > 255)
g = 255;
b = p->rgb[2]*255;
if (b < 0)
b = 0;
else if (b > 255)
b = 255;
p->color = GetPalette(r, g, b);
speed = Length(p->vel);
if ((speed) < 1)
{
VectorCopy(p->org, src);
VectorCopy(p->org, dest);
}
else
{ //causes flickers with lower vels (due to bouncing in physics)
if (speed < 50)
speed *= 50/speed;
VectorMA(p->org, 2.5/(speed), p->vel, src);
VectorMA(p->org, -2.5/(speed), p->vel, dest);
}
D_DrawSparkTrans(p, src, dest);
}
void SWD_DrawParticleBlob(particle_t *p, part_type_t *type)
{
int r,g,b; //This really shouldn't be like this. Pitty the 32 bit renderer...
r = p->rgb[0]*255;
if (r < 0)
r = 0;
else if (r > 255)
r = 255;
g = p->rgb[1]*255;
if (g < 0)
g = 0;
else if (g > 255)
g = 255;
b = p->rgb[2]*255;
if (b < 0)
b = 0;
else if (b > 255)
b = 255;
p->color = GetPalette(r, g, b);
D_DrawParticleTrans(p);
}
void SWD_DrawParticleBeam(beamseg_t *beam, part_type_t *type)
{
int r,g,b; //if you have a cpu with mmx, good for you...
beamseg_t *c;
particle_t *p;
particle_t *q;
// if (!b->next)
// return;
c = beam->next;
q = c->p;
// if (!q)
// return;
p = beam->p;
r = p->rgb[0]*255;
if (r < 0)
r = 0;
else if (r > 255)
r = 255;
g = p->rgb[1]*255;
if (g < 0)
g = 0;
else if (g > 255)
g = 255;
b = p->rgb[2]*255;
if (b < 0)
b = 0;
else if (b > 255)
b = 255;
p->color = GetPalette(r, g, b);
D_DrawSparkTrans(p, p->org, q->org );
}
#endif
void DrawParticleTypes (void texturedparticles(particle_t *,part_type_t*), void sparklineparticles(particle_t*,part_type_t*), void sparkfanparticles(particle_t*,part_type_t*), void sparktexturedparticles(particle_t*,part_type_t*), void beamparticlest(beamseg_t*,part_type_t*), void beamparticlesut(beamseg_t*,part_type_t*), void drawdecalparticles(clippeddecal_t*,part_type_t*))
{
RSpeedMark();
qboolean (*tr) (vec3_t start, vec3_t end, vec3_t impact, vec3_t normal);
void *pdraw, *bdraw;
int i;
vec3_t oldorg;
vec3_t stop, normal;
part_type_t *type;
particle_t *p, *kill;
clippeddecal_t *d, *dkill;
ramp_t *ramp;
float grav;
vec3_t friction;
float dist;
particle_t *kill_list, *kill_first; //the kill list is to stop particles from being freed and reused whilst still in this loop
//which is bad because beams need to find out when particles died. Reuse can do wierd things.
//remember that they're not drawn instantly either.
beamseg_t *b, *bkill;
int traces=r_particle_tracelimit.value;
lasttype = NULL;
pframetime = host_frametime;
if (cl.paused || r_secondaryview)
pframetime = 0;
VectorScale (vup, 1.5, pup);
VectorScale (vright, 1.5, pright);
#ifdef SWQUAKE
VectorScale (vright, xscaleshrink, r_pright);
VectorScale (vup, yscaleshrink, r_pup);
VectorCopy (vpn, r_ppn);
#endif
#ifdef Q2BSPS
if (cl.worldmodel->fromgame == fg_quake2 || cl.worldmodel->fromgame == fg_quake3)
tr = Q2TraceLineN;
else
#endif
tr = TraceLineN;
kill_list = kill_first = NULL;
for (i = 0, type = &part_type[i]; i < numparticletypes; i++, type++)
{
if (type->clippeddecals)
{
/* for ( ;; )
{
dkill = type->clippeddecals;
if (dkill && dkill->die < particletime)
{
type->clippeddecals = dkill->next;
free_decals =
dkill->next = (clippeddecal_t *)kill_list;
kill_list = (particle_t*)dkill;
if (!kill_first)
kill_first = kill_list;
continue;
}
break;
}
*/ for (d=type->clippeddecals ; d ; d=d->next)
{
/* for ( ;; )
{
dkill = d->next;
if (dkill && dkill->die < particletime)
{
d->next = dkill->next;
dkill->next = (clippeddecal_t *)kill_list;
kill_list = (particle_t*)dkill;
if (!kill_first)
kill_first = kill_list;
continue;
}
break;
}*/
switch (type->rampmode)
{
case RAMP_ABSOLUTE:
ramp = type->ramp + (int)(type->rampindexes * (type->die - (d->die - particletime)) / type->die);
VectorCopy(ramp->rgb, d->rgb);
d->alpha = ramp->alpha;
break;
case RAMP_DELTA: //particle ramps
ramp = type->ramp + (int)(type->rampindexes * (type->die - (d->die - particletime)) / type->die);
VectorMA(d->rgb, pframetime, ramp->rgb, d->rgb);
d->alpha -= pframetime*ramp->alpha;
break;
case RAMP_NONE: //particle changes acording to it's preset properties.
if (particletime < (d->die-type->die+type->rgbchangetime))
{
d->rgb[0] += pframetime*type->rgbchange[0];
d->rgb[1] += pframetime*type->rgbchange[1];
d->rgb[2] += pframetime*type->rgbchange[2];
}
d->alpha -= pframetime*(type->alpha/type->die)*type->alphachange;
}
drawdecalparticles(d, type);
}
}
if (!type->particles)
continue;
bdraw = NULL;
pdraw = NULL;
// set drawing methods by type and cvars and hope branch
// prediction takes care of the rest
switch(type->type)
{
case PT_NORMAL:
pdraw = texturedparticles;
break;
case PT_BEAM:
if (r_part_beams.value)
{
if (r_part_beams_textured.value && *type->texname)
{
if (r_part_beams_textured.value > 0)
bdraw = beamparticlest;
}
else if (r_part_beams.value > 0)
bdraw = beamparticlesut;
}
case PT_TEXTUREDSPARK:
if (r_part_sparks.value)
{
if (r_part_sparks_textured.value)
{
if (r_part_sparks_textured.value > 0)
pdraw = sparktexturedparticles;
}
else
pdraw = sparklineparticles;
}
break;
case PT_SPARKFAN:
if (r_part_sparks.value)
{
if (r_part_sparks_trifan.value)
{
if (r_part_sparks_trifan.value > 0)
pdraw = sparkfanparticles;
}
else
pdraw = sparklineparticles;
}
break;
case PT_SPARK:
if (r_part_sparks.value)
{
if (r_part_sparks.value > 0)
pdraw = sparklineparticles;
}
break;
}
if (!type->die)
{
while ((p=type->particles))
{
if (pdraw)
RQ_AddDistReorder(pdraw, p, type, p->org);
// make sure emitter runs at least once
if (type->emit >= 0 && type->emitstart <= 0)
P_RunParticleEffectType(p->org, p->vel, 1, type->emit);
// make sure stain effect runs
if (type->stains && r_bloodstains.value)
{
if (traces-->0&&tr(oldorg, p->org, stop, normal))
{
R_AddStain(stop, (p->rgb[1]*-10+p->rgb[2]*-10),
(p->rgb[0]*-10+p->rgb[2]*-10),
(p->rgb[0]*-10+p->rgb[1]*-10),
30*p->alpha*type->stains);
}
}
type->particles = p->next;
// p->next = free_particles;
// free_particles = p;
p->next = kill_list;
kill_list = p;
if (!kill_first) // branch here is probably faster than list traversal later
kill_first = p;
}
if (type->beams)
{
b = type->beams;
}
while ((b=type->beams) && (b->flags & BS_DEAD))
{
type->beams = b->next;
b->next = free_beams;
free_beams = b;
}
while (b)
{
if (!(b->flags & BS_NODRAW))
{
// no BS_NODRAW implies b->next != NULL
// BS_NODRAW should imply b->next == NULL or b->next->flags & BS_DEAD
VectorCopy(b->next->p->org, stop);
VectorCopy(b->p->org, oldorg);
VectorSubtract(stop, oldorg, b->next->dir);
VectorNormalize(b->next->dir);
if (bdraw)
{
VectorAdd(stop, oldorg, stop);
VectorScale(stop, 0.5, stop);
RQ_AddDistReorder(bdraw, b, type, stop);
}
}
// clean up dead entries ahead of current
for ( ;; )
{
bkill = b->next;
if (bkill && (bkill->flags & BS_DEAD))
{
b->next = bkill->next;
bkill->next = free_beams;
free_beams = bkill;
continue;
}
break;
}
b->flags |= BS_DEAD;
b = b->next;
}
continue;
}
//kill off early ones.
if (type->emittime < 0)
{
for ( ;; )
{
kill = type->particles;
if (kill && kill->die < particletime)
{
P_DelinkTrailstate(&kill->trailstate);
type->particles = kill->next;
kill->next = kill_list;
kill_list = kill;
if (!kill_first)
kill_first = kill;
continue;
}
break;
}
}
else
{
for ( ;; )
{
kill = type->particles;
if (kill && kill->die < particletime)
{
type->particles = kill->next;
kill->next = kill_list;
kill_list = kill;
if (!kill_first)
kill_first = kill;
continue;
}
break;
}
}
grav = type->gravity*pframetime;
VectorScale(type->friction, pframetime, friction);
for (p=type->particles ; p ; p=p->next)
{
if (type->emittime < 0)
{
for ( ;; )
{
kill = p->next;
if (kill && kill->die < particletime)
{
P_DelinkTrailstate(&kill->trailstate);
p->next = kill->next;
kill->next = kill_list;
kill_list = kill;
if (!kill_first)
kill_first = kill;
continue;
}
break;
}
}
else
{
for ( ;; )
{
kill = p->next;
if (kill && kill->die < particletime)
{
p->next = kill->next;
kill->next = kill_list;
kill_list = kill;
if (!kill_first)
kill_first = kill;
continue;
}
break;
}
}
VectorCopy(p->org, oldorg);
if (type->flags & PT_VELOCITY)
{
p->org[0] += p->vel[0]*pframetime;
p->org[1] += p->vel[1]*pframetime;
p->org[2] += p->vel[2]*pframetime;
if (type->flags & PT_FRICTION)
{
p->vel[0] -= friction[0]*p->vel[0];
p->vel[1] -= friction[1]*p->vel[1];
p->vel[2] -= friction[2]*p->vel[2];
}
p->vel[2] -= grav;
}
p->angle += p->rotationspeed*pframetime;
switch (type->rampmode)
{
case RAMP_ABSOLUTE:
ramp = type->ramp + (int)(type->rampindexes * (type->die - (p->die - particletime)) / type->die);
VectorCopy(ramp->rgb, p->rgb);
p->alpha = ramp->alpha;
p->scale = ramp->scale;
break;
case RAMP_DELTA: //particle ramps
ramp = type->ramp + (int)(type->rampindexes * (type->die - (p->die - particletime)) / type->die);
VectorMA(p->rgb, pframetime, ramp->rgb, p->rgb);
p->alpha -= pframetime*ramp->alpha;
p->scale += pframetime*ramp->scale;
break;
case RAMP_NONE: //particle changes acording to it's preset properties.
if (particletime < (p->die-type->die+type->rgbchangetime))
{
p->rgb[0] += pframetime*type->rgbchange[0];
p->rgb[1] += pframetime*type->rgbchange[1];
p->rgb[2] += pframetime*type->rgbchange[2];
}
p->alpha -= pframetime*(type->alpha/type->die)*type->alphachange;
p->scale += pframetime*type->scaledelta;
}
if (type->emit >= 0)
{
if (type->emittime < 0)
P_ParticleTrail(oldorg, p->org, type->emit, &p->trailstate);
else if (p->nextemit < particletime)
{
p->nextemit = particletime + type->emittime + frandom()*type->emitrand;
P_RunParticleEffectType(p->org, p->vel, 1, type->emit);
}
}
if (type->cliptype>=0 && r_bouncysparks.value)
{
if (traces-->0&&tr(oldorg, p->org, stop, normal))
{
if (type->stains && r_bloodstains.value)
R_AddStain(stop, p->rgb[1]*-10+p->rgb[2]*-10,
p->rgb[0]*-10+p->rgb[2]*-10,
p->rgb[0]*-10+p->rgb[1]*-10,
30*p->alpha);
if (type->cliptype == i)
{ //bounce
dist = DotProduct(p->vel, normal) * (-1-(rand()/(float)0x7fff)/2);
VectorMA(p->vel, dist, normal, p->vel);
VectorCopy(stop, p->org);
p->vel[0] *= type->clipbounce;
p->vel[1] *= type->clipbounce;
p->vel[2] *= type->clipbounce;
if (!*type->texname && Length(p->vel)<1000*pframetime && type->type == PT_NORMAL)
p->die = -1;
}
else
{
p->die = -1;
VectorNormalize(p->vel);
P_RunParticleEffectType(stop, p->vel, type->clipcount/part_type[type->cliptype].count, type->cliptype);
}
continue;
}
}
else if (type->stains && r_bloodstains.value)
{
if (traces-->0&&tr(oldorg, p->org, stop, normal))
{
R_AddStain(stop, (p->rgb[1]*-10+p->rgb[2]*-10),
(p->rgb[0]*-10+p->rgb[2]*-10),
(p->rgb[0]*-10+p->rgb[1]*-10),
30*p->alpha*type->stains);
p->die = -1;
continue;
}
}
if (pdraw)
RQ_AddDistReorder((void*)pdraw, p, type, p->org);
}
// beams are dealt with here
// kill early entries
for ( ;; )
{
bkill = type->beams;
if (bkill && (bkill->flags & BS_DEAD || bkill->p->die < particletime) && !(bkill->flags & BS_LASTSEG))
{
type->beams = bkill->next;
bkill->next = free_beams;
free_beams = bkill;
continue;
}
break;
}
b = type->beams;
if (!b)
continue;
for ( ;; )
{
if (b->next)
{
// mark dead entries
if (b->flags & (BS_LASTSEG|BS_DEAD|BS_NODRAW))
{
// kill some more dead entries
for ( ;; )
{
bkill = b->next;
if (bkill && (bkill->flags & BS_DEAD) && !(bkill->flags & BS_LASTSEG))
{
b->next = bkill->next;
bkill->next = free_beams;
free_beams = bkill;
continue;
}
break;
}
if (!bkill) // have to check so we don't hit NULL->next
continue;
}
else
{
if (!(b->next->flags & BS_DEAD))
{
VectorCopy(b->next->p->org, stop);
VectorCopy(b->p->org, oldorg);
VectorSubtract(stop, oldorg, b->next->dir);
VectorNormalize(b->next->dir);
if (bdraw)
{
VectorAdd(stop, oldorg, stop);
VectorScale(stop, 0.5, stop);
RQ_AddDistReorder(bdraw, b, type, stop);
}
}
// if (b->p->die < particletime)
// b->flags |= BS_DEAD;
}
}
else
{
if (b->p->die < particletime) // end of the list check
b->flags |= BS_DEAD;
break;
}
if (b->p->die < particletime)
b->flags |= BS_DEAD;
b = b->next;
}
}
RSpeedEnd(RSPEED_PARTICLES);
// lazy delete for particles is done here
if (kill_list)
{
kill_first->next = free_particles;
free_particles = kill_list;
}
particletime += pframetime;
}
#ifdef RGLQUAKE
void P_FlushRenderer(void)
{
qglDepthMask(0); //primarily to stop close particles from obscuring each other
qglDisable(GL_ALPHA_TEST);
qglEnable (GL_BLEND);
GL_TexEnv(GL_MODULATE);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
lasttype = NULL;
}
#endif
/*
===============
R_DrawParticles
===============
*/
void P_DrawParticles (void)
{
RSpeedMark();
P_AddRainParticles();
#if defined(RGLQUAKE)
if (qrenderer == QR_OPENGL)
{
extern cvar_t r_drawflat;
P_FlushRenderer();
if (qglPolygonOffset)
qglPolygonOffset(-1, 0);
qglEnable(GL_POLYGON_OFFSET_FILL);
qglBegin(GL_QUADS);
if (r_drawflat.value == 2)
DrawParticleTypes(GL_DrawSketchParticle, GL_DrawSketchSparkParticle, GL_DrawSketchSparkParticle, GL_DrawSketchSparkParticle, GL_DrawParticleBeam_Textured, GL_DrawParticleBeam_Untextured, GL_DrawClippedDecal);
else
DrawParticleTypes(GL_DrawTexturedParticle, GL_DrawLineSparkParticle, GL_DrawTrifanParticle, GL_DrawTexturedSparkParticle, GL_DrawParticleBeam_Textured, GL_DrawParticleBeam_Untextured, GL_DrawClippedDecal);
qglEnd();
qglDisable(GL_POLYGON_OFFSET_FILL);
RSpeedRemark();
qglBegin(GL_QUADS);
RQ_RenderDistAndClear();
qglEnd();
RSpeedEnd(RSPEED_PARTICLESDRAW);
qglEnable(GL_TEXTURE_2D);
GL_TexEnv(GL_MODULATE);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglDepthMask(1);
return;
}
#endif
#ifdef SWQUAKE
if (qrenderer == QR_SOFTWARE)
{
lasttype = NULL;
DrawParticleTypes(SWD_DrawParticleBlob, SWD_DrawParticleSpark, SWD_DrawParticleSpark, SWD_DrawParticleSpark, SWD_DrawParticleBeam, SWD_DrawParticleBeam, NULL);
RSpeedRemark();
D_StartParticles();
RQ_RenderDistAndClear();
D_EndParticles();
RSpeedEnd(RSPEED_PARTICLESDRAW);
return;
}
#endif
}
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