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cl_particles.c
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cl_particles.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.
*/
#include "quakedef.h"
#include "cl_collision.h"
#include "image.h"
#include "r_shadow.h"
// must match ptype_t values
particletype_t particletype[pt_total] =
{
{PBLEND_INVALID, PARTICLE_INVALID, false}, //pt_dead (should never happen)
{PBLEND_ALPHA, PARTICLE_BILLBOARD, false}, //pt_alphastatic
{PBLEND_ADD, PARTICLE_BILLBOARD, false}, //pt_static
{PBLEND_ADD, PARTICLE_SPARK, false}, //pt_spark
{PBLEND_ADD, PARTICLE_HBEAM, false}, //pt_beam
{PBLEND_ADD, PARTICLE_SPARK, false}, //pt_rain
{PBLEND_ADD, PARTICLE_ORIENTED_DOUBLESIDED, false}, //pt_raindecal
{PBLEND_ADD, PARTICLE_BILLBOARD, false}, //pt_snow
{PBLEND_ADD, PARTICLE_BILLBOARD, false}, //pt_bubble
{PBLEND_INVMOD, PARTICLE_BILLBOARD, false}, //pt_blood
{PBLEND_ADD, PARTICLE_BILLBOARD, false}, //pt_smoke
{PBLEND_INVMOD, PARTICLE_ORIENTED_DOUBLESIDED, false}, //pt_decal
{PBLEND_ALPHA, PARTICLE_BILLBOARD, false}, //pt_entityparticle
};
#define PARTICLEEFFECT_UNDERWATER 1
#define PARTICLEEFFECT_NOTUNDERWATER 2
#define PARTICLEEFFECT_FORCENEAREST 4
#define PARTICLEEFFECT_DEFINED 2147483648U
typedef struct particleeffectinfo_s
{
int effectnameindex; // which effect this belongs to
// PARTICLEEFFECT_* bits
int flags;
// blood effects may spawn very few particles, so proper fraction-overflow
// handling is very important, this variable keeps track of the fraction
double particleaccumulator;
// the math is: countabsolute + requestedcount * countmultiplier * quality
// absolute number of particles to spawn, often used for decals
// (unaffected by quality and requestedcount)
float countabsolute;
// multiplier for the number of particles CL_ParticleEffect was told to
// spawn, most effects do not really have a count and hence use 1, so
// this is often the actual count to spawn, not merely a multiplier
float countmultiplier;
// if > 0 this causes the particle to spawn in an evenly spaced line from
// originmins to originmaxs (causing them to describe a trail, not a box)
float trailspacing;
// type of particle to spawn (defines some aspects of behavior)
ptype_t particletype;
// blending mode used on this particle type
pblend_t blendmode;
// orientation of this particle type (BILLBOARD, SPARK, BEAM, etc)
porientation_t orientation;
// range of colors to choose from in hex RRGGBB (like HTML color tags),
// randomly interpolated at spawn
unsigned int color[2];
// a random texture is chosen in this range (note the second value is one
// past the last choosable, so for example 8,16 chooses any from 8 up and
// including 15)
// if start and end of the range are the same, no randomization is done
int tex[2];
// range of size values randomly chosen when spawning, plus size increase over time
float size[3];
// range of alpha values randomly chosen when spawning, plus alpha fade
float alpha[3];
// how long the particle should live (note it is also removed if alpha drops to 0)
float time[2];
// how much gravity affects this particle (negative makes it fly up!)
float gravity;
// how much bounce the particle has when it hits a surface
// if negative the particle is removed on impact
float bounce;
// if in air this friction is applied
// if negative the particle accelerates
float airfriction;
// if in liquid (water/slime/lava) this friction is applied
// if negative the particle accelerates
float liquidfriction;
// these offsets are added to the values given to particleeffect(), and
// then an ellipsoid-shaped jitter is added as defined by these
// (they are the 3 radii)
float stretchfactor;
// stretch velocity factor (used for sparks)
float originoffset[3];
float relativeoriginoffset[3];
float velocityoffset[3];
float relativevelocityoffset[3];
float originjitter[3];
float velocityjitter[3];
float velocitymultiplier;
// an effect can also spawn a dlight
float lightradiusstart;
float lightradiusfade;
float lighttime;
float lightcolor[3];
qbool lightshadow;
int lightcubemapnum;
float lightcorona[2];
unsigned int staincolor[2]; // note: 0x808080 = neutral (particle's own color), these are modding factors for the particle's original color!
int staintex[2];
float stainalpha[2];
float stainsize[2];
// other parameters
float rotate[4]; // min/max base angle, min/max rotation over time
}
particleeffectinfo_t;
char particleeffectname[MAX_PARTICLEEFFECTNAME][64];
int numparticleeffectinfo;
particleeffectinfo_t particleeffectinfo[MAX_PARTICLEEFFECTINFO];
static int particlepalette[256];
/*
0x000000,0x0f0f0f,0x1f1f1f,0x2f2f2f,0x3f3f3f,0x4b4b4b,0x5b5b5b,0x6b6b6b, // 0-7
0x7b7b7b,0x8b8b8b,0x9b9b9b,0xababab,0xbbbbbb,0xcbcbcb,0xdbdbdb,0xebebeb, // 8-15
0x0f0b07,0x170f0b,0x1f170b,0x271b0f,0x2f2313,0x372b17,0x3f2f17,0x4b371b, // 16-23
0x533b1b,0x5b431f,0x634b1f,0x6b531f,0x73571f,0x7b5f23,0x836723,0x8f6f23, // 24-31
0x0b0b0f,0x13131b,0x1b1b27,0x272733,0x2f2f3f,0x37374b,0x3f3f57,0x474767, // 32-39
0x4f4f73,0x5b5b7f,0x63638b,0x6b6b97,0x7373a3,0x7b7baf,0x8383bb,0x8b8bcb, // 40-47
0x000000,0x070700,0x0b0b00,0x131300,0x1b1b00,0x232300,0x2b2b07,0x2f2f07, // 48-55
0x373707,0x3f3f07,0x474707,0x4b4b0b,0x53530b,0x5b5b0b,0x63630b,0x6b6b0f, // 56-63
0x070000,0x0f0000,0x170000,0x1f0000,0x270000,0x2f0000,0x370000,0x3f0000, // 64-71
0x470000,0x4f0000,0x570000,0x5f0000,0x670000,0x6f0000,0x770000,0x7f0000, // 72-79
0x131300,0x1b1b00,0x232300,0x2f2b00,0x372f00,0x433700,0x4b3b07,0x574307, // 80-87
0x5f4707,0x6b4b0b,0x77530f,0x835713,0x8b5b13,0x975f1b,0xa3631f,0xaf6723, // 88-95
0x231307,0x2f170b,0x3b1f0f,0x4b2313,0x572b17,0x632f1f,0x733723,0x7f3b2b, // 96-103
0x8f4333,0x9f4f33,0xaf632f,0xbf772f,0xcf8f2b,0xdfab27,0xefcb1f,0xfff31b, // 104-111
0x0b0700,0x1b1300,0x2b230f,0x372b13,0x47331b,0x533723,0x633f2b,0x6f4733, // 112-119
0x7f533f,0x8b5f47,0x9b6b53,0xa77b5f,0xb7876b,0xc3937b,0xd3a38b,0xe3b397, // 120-127
0xab8ba3,0x9f7f97,0x937387,0x8b677b,0x7f5b6f,0x775363,0x6b4b57,0x5f3f4b, // 128-135
0x573743,0x4b2f37,0x43272f,0x371f23,0x2b171b,0x231313,0x170b0b,0x0f0707, // 136-143
0xbb739f,0xaf6b8f,0xa35f83,0x975777,0x8b4f6b,0x7f4b5f,0x734353,0x6b3b4b, // 144-151
0x5f333f,0x532b37,0x47232b,0x3b1f23,0x2f171b,0x231313,0x170b0b,0x0f0707, // 152-159
0xdbc3bb,0xcbb3a7,0xbfa39b,0xaf978b,0xa3877b,0x977b6f,0x876f5f,0x7b6353, // 160-167
0x6b5747,0x5f4b3b,0x533f33,0x433327,0x372b1f,0x271f17,0x1b130f,0x0f0b07, // 168-175
0x6f837b,0x677b6f,0x5f7367,0x576b5f,0x4f6357,0x475b4f,0x3f5347,0x374b3f, // 176-183
0x2f4337,0x2b3b2f,0x233327,0x1f2b1f,0x172317,0x0f1b13,0x0b130b,0x070b07, // 184-191
0xfff31b,0xefdf17,0xdbcb13,0xcbb70f,0xbba70f,0xab970b,0x9b8307,0x8b7307, // 192-199
0x7b6307,0x6b5300,0x5b4700,0x4b3700,0x3b2b00,0x2b1f00,0x1b0f00,0x0b0700, // 200-207
0x0000ff,0x0b0bef,0x1313df,0x1b1bcf,0x2323bf,0x2b2baf,0x2f2f9f,0x2f2f8f, // 208-215
0x2f2f7f,0x2f2f6f,0x2f2f5f,0x2b2b4f,0x23233f,0x1b1b2f,0x13131f,0x0b0b0f, // 216-223
0x2b0000,0x3b0000,0x4b0700,0x5f0700,0x6f0f00,0x7f1707,0x931f07,0xa3270b, // 224-231
0xb7330f,0xc34b1b,0xcf632b,0xdb7f3b,0xe3974f,0xe7ab5f,0xefbf77,0xf7d38b, // 232-239
0xa77b3b,0xb79b37,0xc7c337,0xe7e357,0x7fbfff,0xabe7ff,0xd7ffff,0x670000, // 240-247
0x8b0000,0xb30000,0xd70000,0xff0000,0xfff393,0xfff7c7,0xffffff,0x9f5b53 // 248-255
*/
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};
//static int explosparkramp[8] = {0x4b0700, 0x6f0f00, 0x931f07, 0xb7330f, 0xcf632b, 0xe3974f, 0xffe7b5, 0xffffff};
// particletexture_t is a rectangle in the particlefonttexture
typedef struct particletexture_s
{
rtexture_t *texture;
float s1, t1, s2, t2;
}
particletexture_t;
static rtexturepool_t *particletexturepool;
static rtexture_t *particlefonttexture;
static particletexture_t particletexture[MAX_PARTICLETEXTURES];
skinframe_t *decalskinframe;
// texture numbers in particle font
static const int tex_smoke[8] = {0, 1, 2, 3, 4, 5, 6, 7};
static const int tex_bulletdecal[8] = {8, 9, 10, 11, 12, 13, 14, 15};
static const int tex_blooddecal[8] = {16, 17, 18, 19, 20, 21, 22, 23};
static const int tex_bloodparticle[8] = {24, 25, 26, 27, 28, 29, 30, 31};
static const int tex_rainsplash = 32;
static const int tex_square = 33;
static const int tex_beam = 60;
static const int tex_bubble = 62;
static const int tex_raindrop = 61;
static const int tex_particle = 63;
particleeffectinfo_t baselineparticleeffectinfo =
{
0, //int effectnameindex; // which effect this belongs to
// PARTICLEEFFECT_* bits
0, //int flags;
// blood effects may spawn very few particles, so proper fraction-overflow
// handling is very important, this variable keeps track of the fraction
0.0, //double particleaccumulator;
// the math is: countabsolute + requestedcount * countmultiplier * quality
// absolute number of particles to spawn, often used for decals
// (unaffected by quality and requestedcount)
0.0f, //float countabsolute;
// multiplier for the number of particles CL_ParticleEffect was told to
// spawn, most effects do not really have a count and hence use 1, so
// this is often the actual count to spawn, not merely a multiplier
0.0f, //float countmultiplier;
// if > 0 this causes the particle to spawn in an evenly spaced line from
// originmins to originmaxs (causing them to describe a trail, not a box)
0.0f, //float trailspacing;
// type of particle to spawn (defines some aspects of behavior)
pt_alphastatic, //ptype_t particletype;
// blending mode used on this particle type
PBLEND_ALPHA, //pblend_t blendmode;
// orientation of this particle type (BILLBOARD, SPARK, BEAM, etc)
PARTICLE_BILLBOARD, //porientation_t orientation;
// range of colors to choose from in hex RRGGBB (like HTML color tags),
// randomly interpolated at spawn
{0xFFFFFF, 0xFFFFFF}, //unsigned int color[2];
// a random texture is chosen in this range (note the second value is one
// past the last choosable, so for example 8,16 chooses any from 8 up and
// including 15)
// if start and end of the range are the same, no randomization is done
{63, 63 /* tex_particle */}, //int tex[2];
// range of size values randomly chosen when spawning, plus size increase over time
{1, 1, 0.0f}, //float size[3];
// range of alpha values randomly chosen when spawning, plus alpha fade
{0.0f, 256.0f, 256.0f}, //float alpha[3];
// how long the particle should live (note it is also removed if alpha drops to 0)
{16777216.0f, 16777216.0f}, //float time[2];
// how much gravity affects this particle (negative makes it fly up!)
0.0f, //float gravity;
// how much bounce the particle has when it hits a surface
// if negative the particle is removed on impact
0.0f, //float bounce;
// if in air this friction is applied
// if negative the particle accelerates
0.0f, //float airfriction;
// if in liquid (water/slime/lava) this friction is applied
// if negative the particle accelerates
0.0f, //float liquidfriction;
// these offsets are added to the values given to particleeffect(), and
// then an ellipsoid-shaped jitter is added as defined by these
// (they are the 3 radii)
1.0f, //float stretchfactor;
// stretch velocity factor (used for sparks)
{0.0f, 0.0f, 0.0f}, //float originoffset[3];
{0.0f, 0.0f, 0.0f}, //float relativeoriginoffset[3];
{0.0f, 0.0f, 0.0f}, //float velocityoffset[3];
{0.0f, 0.0f, 0.0f}, //float relativevelocityoffset[3];
{0.0f, 0.0f, 0.0f}, //float originjitter[3];
{0.0f, 0.0f, 0.0f}, //float velocityjitter[3];
0.0f, //float velocitymultiplier;
// an effect can also spawn a dlight
0.0f, //float lightradiusstart;
0.0f, //float lightradiusfade;
16777216.0f, //float lighttime;
{1.0f, 1.0f, 1.0f}, //float lightcolor[3];
true, //qbool lightshadow;
0, //int lightcubemapnum;
{1.0f, 0.25f}, //float lightcorona[2];
{(unsigned int)-1, (unsigned int)-1}, //unsigned int staincolor[2]; // note: 0x808080 = neutral (particle's own color), these are modding factors for the particle's original color!
{-1, -1}, //int staintex[2];
{1.0f, 1.0f}, //float stainalpha[2];
{2.0f, 2.0f}, //float stainsize[2];
// other parameters
{0.0f, 360.0f, 0.0f, 0.0f}, //float rotate[4]; // min/max base angle, min/max rotation over time
};
cvar_t cl_particles = {CF_CLIENT | CF_ARCHIVE, "cl_particles", "1", "enables particle effects"};
cvar_t cl_particles_quality = {CF_CLIENT | CF_ARCHIVE, "cl_particles_quality", "1", "multiplies number of particles"};
cvar_t cl_particles_alpha = {CF_CLIENT | CF_ARCHIVE, "cl_particles_alpha", "1", "multiplies opacity of particles"};
cvar_t cl_particles_size = {CF_CLIENT | CF_ARCHIVE, "cl_particles_size", "1", "multiplies particle size"};
cvar_t cl_particles_quake = {CF_CLIENT | CF_ARCHIVE, "cl_particles_quake", "0", "0: Fancy particles; 1: Disc particles like GLQuake; 2: Square particles like software-rendered Quake"};
cvar_t cl_particles_blood = {CF_CLIENT | CF_ARCHIVE, "cl_particles_blood", "1", "enables blood effects"};
cvar_t cl_particles_blood_alpha = {CF_CLIENT | CF_ARCHIVE, "cl_particles_blood_alpha", "1", "opacity of blood, does not affect decals"};
cvar_t cl_particles_blood_decal_alpha = {CF_CLIENT | CF_ARCHIVE, "cl_particles_blood_decal_alpha", "1", "opacity of blood decal"};
cvar_t cl_particles_blood_decal_scalemin = {CF_CLIENT | CF_ARCHIVE, "cl_particles_blood_decal_scalemin", "1.5", "minimal random scale of decal"};
cvar_t cl_particles_blood_decal_scalemax = {CF_CLIENT | CF_ARCHIVE, "cl_particles_blood_decal_scalemax", "2", "maximal random scale of decal"};
cvar_t cl_particles_blood_bloodhack = {CF_CLIENT | CF_ARCHIVE, "cl_particles_blood_bloodhack", "1", "make certain quake particle() calls create blood effects instead"};
cvar_t cl_particles_bulletimpacts = {CF_CLIENT | CF_ARCHIVE, "cl_particles_bulletimpacts", "1", "enables bulletimpact effects"};
cvar_t cl_particles_explosions_sparks = {CF_CLIENT | CF_ARCHIVE, "cl_particles_explosions_sparks", "1", "enables sparks from explosions"};
cvar_t cl_particles_explosions_shell = {CF_CLIENT | CF_ARCHIVE, "cl_particles_explosions_shell", "0", "enables polygonal shell from explosions"};
cvar_t cl_particles_rain = {CF_CLIENT | CF_ARCHIVE, "cl_particles_rain", "1", "enables rain effects"};
cvar_t cl_particles_snow = {CF_CLIENT | CF_ARCHIVE, "cl_particles_snow", "1", "enables snow effects"};
cvar_t cl_particles_smoke = {CF_CLIENT | CF_ARCHIVE, "cl_particles_smoke", "1", "enables smoke (used by multiple effects)"};
cvar_t cl_particles_smoke_alpha = {CF_CLIENT | CF_ARCHIVE, "cl_particles_smoke_alpha", "0.5", "smoke brightness"};
cvar_t cl_particles_smoke_alphafade = {CF_CLIENT | CF_ARCHIVE, "cl_particles_smoke_alphafade", "0.55", "brightness fade per second"};
cvar_t cl_particles_sparks = {CF_CLIENT | CF_ARCHIVE, "cl_particles_sparks", "1", "enables sparks (used by multiple effects)"};
cvar_t cl_particles_bubbles = {CF_CLIENT | CF_ARCHIVE, "cl_particles_bubbles", "1", "enables bubbles (used by multiple effects)"};
cvar_t cl_particles_visculling = {CF_CLIENT | CF_ARCHIVE, "cl_particles_visculling", "0", "perform a costly check if each particle is visible before drawing"};
cvar_t cl_particles_collisions = {CF_CLIENT | CF_ARCHIVE, "cl_particles_collisions", "1", "allow costly collision detection on particles (sparks that bounce, particles not going through walls, blood hitting surfaces, etc)"};
cvar_t cl_particles_forcetraileffects = {CF_CLIENT, "cl_particles_forcetraileffects", "0", "force trails to be displayed even if a non-trail draw primitive was used (debug/compat feature)"};
cvar_t cl_decals = {CF_CLIENT | CF_ARCHIVE, "cl_decals", "1", "enables decals (bullet holes, blood, etc)"};
cvar_t cl_decals_time = {CF_CLIENT | CF_ARCHIVE, "cl_decals_time", "20", "how long before decals start to fade away"};
cvar_t cl_decals_fadetime = {CF_CLIENT | CF_ARCHIVE, "cl_decals_fadetime", "1", "how long decals take to fade away"};
cvar_t cl_decals_newsystem_intensitymultiplier = {CF_CLIENT | CF_ARCHIVE, "cl_decals_newsystem_intensitymultiplier", "2", "boosts intensity of decals (because the distance fade can make them hard to see otherwise)"};
cvar_t cl_decals_newsystem_immediatebloodstain = {CF_CLIENT | CF_ARCHIVE, "cl_decals_newsystem_immediatebloodstain", "2", "0: no on-spawn blood stains; 1: on-spawn blood stains for pt_blood; 2: always use on-spawn blood stains"};
cvar_t cl_decals_newsystem_bloodsmears = {CF_CLIENT | CF_ARCHIVE, "cl_decals_newsystem_bloodsmears", "1", "enable use of particle velocity as decal projection direction rather than surface normal"};
cvar_t cl_decals_models = {CF_CLIENT | CF_ARCHIVE, "cl_decals_models", "0", "enables decals on animated models"};
cvar_t cl_decals_bias = {CF_CLIENT | CF_ARCHIVE, "cl_decals_bias", "0.125", "distance to bias decals from surface to prevent depth fighting"};
cvar_t cl_decals_max = {CF_CLIENT | CF_ARCHIVE, "cl_decals_max", "4096", "maximum number of decals allowed to exist in the world at once"};
static void CL_Particles_ParseEffectInfo(const char *textstart, const char *textend, const char *filename)
{
int arrayindex;
int argc;
int i;
int linenumber;
particleeffectinfo_t *info = NULL;
const char *text = textstart;
char argv[16][1024];
for (linenumber = 1;;linenumber++)
{
argc = 0;
for (arrayindex = 0;arrayindex < 16;arrayindex++)
argv[arrayindex][0] = 0;
for (;;)
{
if (!COM_ParseToken_Simple(&text, true, false, true))
return;
if (!strcmp(com_token, "\n"))
break;
if (argc < 16)
{
dp_strlcpy(argv[argc], com_token, sizeof(argv[argc]));
argc++;
}
}
if (argc < 1)
continue;
#define checkparms(n) if (argc != (n)) {Con_Printf("%s:%i: error while parsing: %s given %i parameters, should be %i parameters\n", filename, linenumber, argv[0], argc, (n));break;}
#define readints(array, n) checkparms(n+1);for (arrayindex = 0;arrayindex < argc - 1;arrayindex++) array[arrayindex] = strtol(argv[1+arrayindex], NULL, 0)
#define readfloats(array, n) checkparms(n+1);for (arrayindex = 0;arrayindex < argc - 1;arrayindex++) array[arrayindex] = atof(argv[1+arrayindex])
#define readint(var) checkparms(2);var = strtol(argv[1], NULL, 0)
#define readfloat(var) checkparms(2);var = atof(argv[1])
#define readbool(var) checkparms(2);var = strtol(argv[1], NULL, 0) != 0
if (!strcmp(argv[0], "effect"))
{
int effectnameindex;
checkparms(2);
if (numparticleeffectinfo >= MAX_PARTICLEEFFECTINFO)
{
Con_Printf("%s:%i: too many effects!\n", filename, linenumber);
break;
}
for (effectnameindex = 1;effectnameindex < MAX_PARTICLEEFFECTNAME;effectnameindex++)
{
if (particleeffectname[effectnameindex][0])
{
if (!strcmp(particleeffectname[effectnameindex], argv[1]))
break;
}
else
{
dp_strlcpy(particleeffectname[effectnameindex], argv[1], sizeof(particleeffectname[effectnameindex]));
break;
}
}
// if we run out of names, abort
if (effectnameindex == MAX_PARTICLEEFFECTNAME)
{
Con_Printf("%s:%i: too many effects!\n", filename, linenumber);
break;
}
for(i = 0; i < numparticleeffectinfo; ++i)
{
info = particleeffectinfo + i;
if(!(info->flags & PARTICLEEFFECT_DEFINED))
if(info->effectnameindex == effectnameindex)
break;
}
if(i < numparticleeffectinfo)
continue;
info = particleeffectinfo + numparticleeffectinfo++;
// copy entire info from baseline, then fix up the nameindex
*info = baselineparticleeffectinfo;
info->effectnameindex = effectnameindex;
continue;
}
else if (info == NULL)
{
Con_Printf("%s:%i: command %s encountered before effect\n", filename, linenumber, argv[0]);
break;
}
info->flags |= PARTICLEEFFECT_DEFINED;
if (!strcmp(argv[0], "countabsolute")) {readfloat(info->countabsolute);}
else if (!strcmp(argv[0], "count")) {readfloat(info->countmultiplier);}
else if (!strcmp(argv[0], "type"))
{
checkparms(2);
if (!strcmp(argv[1], "alphastatic")) info->particletype = pt_alphastatic;
else if (!strcmp(argv[1], "static")) info->particletype = pt_static;
else if (!strcmp(argv[1], "spark")) info->particletype = pt_spark;
else if (!strcmp(argv[1], "beam")) info->particletype = pt_beam;
else if (!strcmp(argv[1], "rain")) info->particletype = pt_rain;
else if (!strcmp(argv[1], "raindecal")) info->particletype = pt_raindecal;
else if (!strcmp(argv[1], "snow")) info->particletype = pt_snow;
else if (!strcmp(argv[1], "bubble")) info->particletype = pt_bubble;
else if (!strcmp(argv[1], "blood")) {info->particletype = pt_blood;info->gravity = 1;}
else if (!strcmp(argv[1], "smoke")) info->particletype = pt_smoke;
else if (!strcmp(argv[1], "decal")) info->particletype = pt_decal;
else if (!strcmp(argv[1], "entityparticle")) info->particletype = pt_entityparticle;
else Con_Printf("%s:%i: unrecognized particle type %s\n", filename, linenumber, argv[1]);
info->blendmode = particletype[info->particletype].blendmode;
info->orientation = particletype[info->particletype].orientation;
}
else if (!strcmp(argv[0], "blend"))
{
checkparms(2);
if (!strcmp(argv[1], "alpha")) info->blendmode = PBLEND_ALPHA;
else if (!strcmp(argv[1], "add")) info->blendmode = PBLEND_ADD;
else if (!strcmp(argv[1], "invmod")) info->blendmode = PBLEND_INVMOD;
else Con_Printf("%s:%i: unrecognized blendmode %s\n", filename, linenumber, argv[1]);
}
else if (!strcmp(argv[0], "orientation"))
{
checkparms(2);
if (!strcmp(argv[1], "billboard")) info->orientation = PARTICLE_BILLBOARD;
else if (!strcmp(argv[1], "spark")) info->orientation = PARTICLE_SPARK;
else if (!strcmp(argv[1], "oriented")) info->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
else if (!strcmp(argv[1], "beam")) info->orientation = PARTICLE_HBEAM;
else Con_Printf("%s:%i: unrecognized orientation %s\n", filename, linenumber, argv[1]);
}
else if (!strcmp(argv[0], "color")) {readints(info->color, 2);}
else if (!strcmp(argv[0], "tex")) {readints(info->tex, 2);}
else if (!strcmp(argv[0], "size")) {readfloats(info->size, 2);}
else if (!strcmp(argv[0], "sizeincrease")) {readfloat(info->size[2]);}
else if (!strcmp(argv[0], "alpha")) {readfloats(info->alpha, 3);}
else if (!strcmp(argv[0], "time")) {readfloats(info->time, 2);}
else if (!strcmp(argv[0], "gravity")) {readfloat(info->gravity);}
else if (!strcmp(argv[0], "bounce")) {readfloat(info->bounce);}
else if (!strcmp(argv[0], "airfriction")) {readfloat(info->airfriction);}
else if (!strcmp(argv[0], "liquidfriction")) {readfloat(info->liquidfriction);}
else if (!strcmp(argv[0], "originoffset")) {readfloats(info->originoffset, 3);}
else if (!strcmp(argv[0], "relativeoriginoffset")) {readfloats(info->relativeoriginoffset, 3);}
else if (!strcmp(argv[0], "velocityoffset")) {readfloats(info->velocityoffset, 3);}
else if (!strcmp(argv[0], "relativevelocityoffset")) {readfloats(info->relativevelocityoffset, 3);}
else if (!strcmp(argv[0], "originjitter")) {readfloats(info->originjitter, 3);}
else if (!strcmp(argv[0], "velocityjitter")) {readfloats(info->velocityjitter, 3);}
else if (!strcmp(argv[0], "velocitymultiplier")) {readfloat(info->velocitymultiplier);}
else if (!strcmp(argv[0], "lightradius")) {readfloat(info->lightradiusstart);}
else if (!strcmp(argv[0], "lightradiusfade")) {readfloat(info->lightradiusfade);}
else if (!strcmp(argv[0], "lighttime")) {readfloat(info->lighttime);}
else if (!strcmp(argv[0], "lightcolor")) {readfloats(info->lightcolor, 3);}
else if (!strcmp(argv[0], "lightshadow")) {readbool(info->lightshadow);}
else if (!strcmp(argv[0], "lightcubemapnum")) {readint(info->lightcubemapnum);}
else if (!strcmp(argv[0], "lightcorona")) {readints(info->lightcorona, 2);}
else if (!strcmp(argv[0], "underwater")) {checkparms(1);info->flags |= PARTICLEEFFECT_UNDERWATER;}
else if (!strcmp(argv[0], "notunderwater")) {checkparms(1);info->flags |= PARTICLEEFFECT_NOTUNDERWATER;}
else if (!strcmp(argv[0], "trailspacing")) {readfloat(info->trailspacing);if (info->trailspacing > 0) info->countmultiplier = 1.0f / info->trailspacing;}
else if (!strcmp(argv[0], "stretchfactor")) {readfloat(info->stretchfactor);}
else if (!strcmp(argv[0], "staincolor")) {readints(info->staincolor, 2);}
else if (!strcmp(argv[0], "stainalpha")) {readfloats(info->stainalpha, 2);}
else if (!strcmp(argv[0], "stainsize")) {readfloats(info->stainsize, 2);}
else if (!strcmp(argv[0], "staintex")) {readints(info->staintex, 2);}
else if (!strcmp(argv[0], "stainless")) {info->staintex[0] = -2; info->staincolor[0] = (unsigned int)-1; info->staincolor[1] = (unsigned int)-1; info->stainalpha[0] = 1; info->stainalpha[1] = 1; info->stainsize[0] = 2; info->stainsize[1] = 2; }
else if (!strcmp(argv[0], "rotate")) {readfloats(info->rotate, 4);}
else if (!strcmp(argv[0], "forcenearest")) {checkparms(1);info->flags |= PARTICLEEFFECT_FORCENEAREST;}
else
Con_Printf("%s:%i: skipping unknown command %s\n", filename, linenumber, argv[0]);
#undef checkparms
#undef readints
#undef readfloats
#undef readint
#undef readfloat
}
}
int CL_ParticleEffectIndexForName(const char *name)
{
int i;
for (i = 1;i < MAX_PARTICLEEFFECTNAME && particleeffectname[i][0];i++)
if (!strcmp(particleeffectname[i], name))
return i;
return 0;
}
const char *CL_ParticleEffectNameForIndex(int i)
{
if (i < 1 || i >= MAX_PARTICLEEFFECTNAME)
return NULL;
return particleeffectname[i];
}
// MUST match effectnameindex_t in client.h
static const char *standardeffectnames[EFFECT_TOTAL] =
{
"",
"TE_GUNSHOT",
"TE_GUNSHOTQUAD",
"TE_SPIKE",
"TE_SPIKEQUAD",
"TE_SUPERSPIKE",
"TE_SUPERSPIKEQUAD",
"TE_WIZSPIKE",
"TE_KNIGHTSPIKE",
"TE_EXPLOSION",
"TE_EXPLOSIONQUAD",
"TE_TAREXPLOSION",
"TE_TELEPORT",
"TE_LAVASPLASH",
"TE_SMALLFLASH",
"TE_FLAMEJET",
"EF_FLAME",
"TE_BLOOD",
"TE_SPARK",
"TE_PLASMABURN",
"TE_TEI_G3",
"TE_TEI_SMOKE",
"TE_TEI_BIGEXPLOSION",
"TE_TEI_PLASMAHIT",
"EF_STARDUST",
"TR_ROCKET",
"TR_GRENADE",
"TR_BLOOD",
"TR_WIZSPIKE",
"TR_SLIGHTBLOOD",
"TR_KNIGHTSPIKE",
"TR_VORESPIKE",
"TR_NEHAHRASMOKE",
"TR_NEXUIZPLASMA",
"TR_GLOWTRAIL",
"SVC_PARTICLE"
};
static void CL_Particles_LoadEffectInfo(const char *customfile)
{
int i;
int filepass;
unsigned char *filedata;
fs_offset_t filesize;
char filename[MAX_QPATH];
numparticleeffectinfo = 0;
memset(particleeffectinfo, 0, sizeof(particleeffectinfo));
memset(particleeffectname, 0, sizeof(particleeffectname));
for (i = 0;i < EFFECT_TOTAL;i++)
dp_strlcpy(particleeffectname[i], standardeffectnames[i], sizeof(particleeffectname[i]));
for (filepass = 0;;filepass++)
{
if (filepass == 0)
{
if (customfile)
dp_strlcpy(filename, customfile, sizeof(filename));
else
dp_strlcpy(filename, "effectinfo.txt", sizeof(filename));
}
else if (filepass == 1)
{
if (!cl.worldbasename[0] || customfile)
continue;
dpsnprintf(filename, sizeof(filename), "%s_effectinfo.txt", cl.worldnamenoextension);
}
else
break;
filedata = FS_LoadFile(filename, tempmempool, true, &filesize);
if (!filedata)
continue;
CL_Particles_ParseEffectInfo((const char *)filedata, (const char *)filedata + filesize, filename);
Mem_Free(filedata);
}
}
static void CL_Particles_LoadEffectInfo_f(cmd_state_t *cmd)
{
CL_Particles_LoadEffectInfo(Cmd_Argc(cmd) > 1 ? Cmd_Argv(cmd, 1) : NULL);
}
/*
===============
CL_InitParticles
===============
*/
void CL_ReadPointFile_f(cmd_state_t *cmd);
void CL_Particles_Init (void)
{
Cmd_AddCommand(CF_CLIENT, "pointfile", CL_ReadPointFile_f, "display point file produced by qbsp when a leak was detected in the map (a line leading through the leak hole, to an entity inside the level)");
Cmd_AddCommand(CF_CLIENT, "cl_particles_reloadeffects", CL_Particles_LoadEffectInfo_f, "reloads effectinfo.txt and maps/levelname_effectinfo.txt (where levelname is the current map) if parameter is given, loads from custom file (no levelname_effectinfo are loaded in this case)");
Cvar_RegisterVariable (&cl_particles);
Cvar_RegisterVariable (&cl_particles_quality);
Cvar_RegisterVariable (&cl_particles_alpha);
Cvar_RegisterVariable (&cl_particles_size);
Cvar_RegisterVariable (&cl_particles_quake);
Cvar_RegisterVariable (&cl_particles_blood);
Cvar_RegisterVariable (&cl_particles_blood_alpha);
Cvar_RegisterVariable (&cl_particles_blood_decal_alpha);
Cvar_RegisterVariable (&cl_particles_blood_decal_scalemin);
Cvar_RegisterVariable (&cl_particles_blood_decal_scalemax);
Cvar_RegisterVariable (&cl_particles_blood_bloodhack);
Cvar_RegisterVariable (&cl_particles_explosions_sparks);
Cvar_RegisterVariable (&cl_particles_explosions_shell);
Cvar_RegisterVariable (&cl_particles_bulletimpacts);
Cvar_RegisterVariable (&cl_particles_rain);
Cvar_RegisterVariable (&cl_particles_snow);
Cvar_RegisterVariable (&cl_particles_smoke);
Cvar_RegisterVariable (&cl_particles_smoke_alpha);
Cvar_RegisterVariable (&cl_particles_smoke_alphafade);
Cvar_RegisterVariable (&cl_particles_sparks);
Cvar_RegisterVariable (&cl_particles_bubbles);
Cvar_RegisterVariable (&cl_particles_visculling);
Cvar_RegisterVariable (&cl_particles_collisions);
Cvar_RegisterVariable (&cl_particles_forcetraileffects);
Cvar_RegisterVariable (&cl_decals);
Cvar_RegisterVariable (&cl_decals_time);
Cvar_RegisterVariable (&cl_decals_fadetime);
Cvar_RegisterVariable (&cl_decals_newsystem_intensitymultiplier);
Cvar_RegisterVariable (&cl_decals_newsystem_immediatebloodstain);
Cvar_RegisterVariable (&cl_decals_newsystem_bloodsmears);
Cvar_RegisterVariable (&cl_decals_models);
Cvar_RegisterVariable (&cl_decals_bias);
Cvar_RegisterVariable (&cl_decals_max);
}
void CL_Particles_Shutdown (void)
{
}
void CL_SpawnDecalParticleForSurface(int hitent, const vec3_t org, const vec3_t normal, int color1, int color2, int texnum, float size, float alpha);
void CL_SpawnDecalParticleForPoint(const vec3_t org, float maxdist, float size, float alpha, int texnum, int color1, int color2);
/**
* @brief Creates a new particle and returns a pointer to it
*
* @param[in] sortorigin ?
* @param[in] ptypeindex Any of the pt_ enum values (pt_static, pt_blood, etc), see ptype_t near the top of this file
* @param[in] pcolor1,pcolor2 Minimum and maximum range of color, randomly interpolated with pcolor2 to decide particle color
* @param[in] ptex Any of the tex_ values such as tex_smoke[rand()&7] or tex_particle
* @param[in] psize Size of particle (or thickness for PARTICLE_SPARK and PARTICLE_*BEAM)
* @param[in] psizeincrease ?
* @param[in] palpha Opacity of particle as 0-255 (can be more than 255)
* @param[in] palphafade Rate of fade per second (so 256 would mean a 256 alpha particle would fade to nothing in 1 second)
* @param[in] pgravity How much effect gravity has on the particle (0-1)
* @param[in] pbounce How much bounce the particle has when it hits a surface (0-1), -1 makes a blood splat when it hits a surface, 0 does not even check for collisions
* @param[in] px,py,pz Starting origin of particle
* @param[in] pvx,pvy,pvz Starting velocity of particle
* @param[in] pairfriction How much the particle slows down, in air, per second (0-1 typically, can slowdown faster than 1)
* @param[in] pliquidfriction How much the particle slows down, in liquids, per second (0-1 typically, can slowdown faster than 1)
* @param[in] originjitter ?
* @param[in] velocityjitter ?
* @param[in] pqualityreduction ?
* @param[in] lifetime How long the particle can live (note it is also removed if alpha drops to nothing)
* @param[in] stretch ?
* @param[in] blendmode One of the PBLEND_ values
* @param[in] orientation One of the PARTICLE_ values
* @param[in] staincolor1 Minimum and maximum ranges of stain color, randomly interpolated to decide stain color (-1 to use none)
* @param[in] staincolor2 Minimum and maximum ranges of stain color, randomly interpolated to decide stain color (-1 to use none)
* @param[in] staintex Any of the tex_ values such as tex_smoke[rand()&7] or tex_particle
* @param[in] angle Base rotation of the particle geometry around its center normal
* @param[in] spin Rotation speed of the particle geometry around its center normal
* @param[in] tint The tint
*
* @return Pointer to the new particle
*/
particle_t *CL_NewParticle(
const vec3_t sortorigin,
unsigned short ptypeindex,
int pcolor1, int pcolor2,
int ptex,
float psize,
float psizeincrease,
float palpha,
float palphafade,
float pgravity,
float pbounce,
float px, float py, float pz,
float pvx, float pvy, float pvz,
float pairfriction,
float pliquidfriction,
float originjitter,
float velocityjitter,
qbool pqualityreduction,
float lifetime,
float stretch,
pblend_t blendmode,
porientation_t orientation,
int staincolor1,
int staincolor2,
int staintex,
float stainalpha,
float stainsize,
float angle,
float spin,
float tint[4])
{
int l1, l2, r, g, b;
particle_t *part;
vec3_t v;
if (!cl_particles.integer)
return NULL;
for (;cl.free_particle < cl.max_particles && cl.particles[cl.free_particle].typeindex;cl.free_particle++);
if (cl.free_particle >= cl.max_particles)
return NULL;
if (!lifetime)
lifetime = palpha / min(1, palphafade);
part = &cl.particles[cl.free_particle++];
if (cl.num_particles < cl.free_particle)
cl.num_particles = cl.free_particle;
memset(part, 0, sizeof(*part));
VectorCopy(sortorigin, part->sortorigin);
part->typeindex = ptypeindex;
part->blendmode = blendmode;
if(orientation == PARTICLE_HBEAM || orientation == PARTICLE_VBEAM)
{
particletexture_t *tex = &particletexture[ptex];
if(tex->t1 == 0 && tex->t2 == 1) // full height of texture?
part->orientation = PARTICLE_VBEAM;
else
part->orientation = PARTICLE_HBEAM;
}
else
part->orientation = orientation;
l2 = (int)lhrandom(0.5, 256.5);
l1 = 256 - l2;
part->color[0] = ((((pcolor1 >> 16) & 0xFF) * l1 + ((pcolor2 >> 16) & 0xFF) * l2) >> 8) & 0xFF;
part->color[1] = ((((pcolor1 >> 8) & 0xFF) * l1 + ((pcolor2 >> 8) & 0xFF) * l2) >> 8) & 0xFF;
part->color[2] = ((((pcolor1 >> 0) & 0xFF) * l1 + ((pcolor2 >> 0) & 0xFF) * l2) >> 8) & 0xFF;
if (vid.sRGB3D)
{
part->color[0] = (unsigned char)floor(Image_LinearFloatFromsRGB(part->color[0]) * 255.0f + 0.5f);
part->color[1] = (unsigned char)floor(Image_LinearFloatFromsRGB(part->color[1]) * 255.0f + 0.5f);
part->color[2] = (unsigned char)floor(Image_LinearFloatFromsRGB(part->color[2]) * 255.0f + 0.5f);
}
part->alpha = palpha;
part->alphafade = palphafade;
part->staintexnum = staintex;
if(staincolor1 >= 0 && staincolor2 >= 0)
{
l2 = (int)lhrandom(0.5, 256.5);
l1 = 256 - l2;
if(blendmode == PBLEND_INVMOD)
{
r = ((((staincolor1 >> 16) & 0xFF) * l1 + ((staincolor2 >> 16) & 0xFF) * l2) * (255 - part->color[0])) / 0x8000; // staincolor 0x808080 keeps color invariant
g = ((((staincolor1 >> 8) & 0xFF) * l1 + ((staincolor2 >> 8) & 0xFF) * l2) * (255 - part->color[1])) / 0x8000;
b = ((((staincolor1 >> 0) & 0xFF) * l1 + ((staincolor2 >> 0) & 0xFF) * l2) * (255 - part->color[2])) / 0x8000;
}
else
{
r = ((((staincolor1 >> 16) & 0xFF) * l1 + ((staincolor2 >> 16) & 0xFF) * l2) * part->color[0]) / 0x8000; // staincolor 0x808080 keeps color invariant
g = ((((staincolor1 >> 8) & 0xFF) * l1 + ((staincolor2 >> 8) & 0xFF) * l2) * part->color[1]) / 0x8000;
b = ((((staincolor1 >> 0) & 0xFF) * l1 + ((staincolor2 >> 0) & 0xFF) * l2) * part->color[2]) / 0x8000;
}
if(r > 0xFF) r = 0xFF;
if(g > 0xFF) g = 0xFF;
if(b > 0xFF) b = 0xFF;
}
else
{
r = part->color[0]; // -1 is shorthand for stain = particle color
g = part->color[1];
b = part->color[2];
}
part->staincolor[0] = r;
part->staincolor[1] = g;
part->staincolor[2] = b;
part->stainalpha = palpha * stainalpha;
part->stainsize = psize * stainsize;
if(tint)
{
if(blendmode != PBLEND_INVMOD) // invmod is immune to tinting
{
part->color[0] *= tint[0];
part->color[1] *= tint[1];
part->color[2] *= tint[2];
}
part->alpha *= tint[3];
part->alphafade *= tint[3];
part->stainalpha *= tint[3];
}
part->texnum = ptex;
part->size = psize;
part->sizeincrease = psizeincrease;
part->gravity = pgravity;
part->bounce = pbounce;
part->stretch = stretch;
VectorRandom(v);
part->org[0] = px + originjitter * v[0];
part->org[1] = py + originjitter * v[1];
part->org[2] = pz + originjitter * v[2];
part->vel[0] = pvx + velocityjitter * v[0];
part->vel[1] = pvy + velocityjitter * v[1];
part->vel[2] = pvz + velocityjitter * v[2];
part->airfriction = pairfriction;
part->liquidfriction = pliquidfriction;
part->die = cl.time + lifetime;
part->delayedspawn = cl.time;
// part->delayedcollisions = 0;
part->qualityreduction = pqualityreduction;
part->angle = angle;
part->spin = spin;
// if it is rain or snow, trace ahead and shut off collisions until an actual collision event needs to occur to improve performance
if (part->typeindex == pt_rain)
{
int i;
particle_t *part2;
vec3_t endvec;
trace_t trace;
// turn raindrop into simple spark and create delayedspawn splash effect
part->typeindex = pt_spark;
part->bounce = 0;
VectorMA(part->org, lifetime, part->vel, endvec);
trace = CL_TraceLine(part->org, endvec, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_LIQUIDSMASK, 0, 0, collision_extendmovelength.value, true, false, NULL, false, false);
part->die = cl.time + lifetime * trace.fraction;
part2 = CL_NewParticle(endvec, pt_raindecal, pcolor1, pcolor2, tex_rainsplash, part->size, part->size * 20, part->alpha, part->alpha / 0.4, 0, 0, trace.endpos[0] + trace.plane.normal[0], trace.endpos[1] + trace.plane.normal[1], trace.endpos[2] + trace.plane.normal[2], trace.plane.normal[0], trace.plane.normal[1], trace.plane.normal[2], 0, 0, 0, 0, pqualityreduction, 0, 1, PBLEND_ADD, PARTICLE_ORIENTED_DOUBLESIDED, -1, -1, -1, 1, 1, 0, 0, NULL);
if (part2)
{
part2->delayedspawn = part->die;
part2->die += part->die - cl.time;
for (i = rand() & 7;i < 10;i++)
{
part2 = CL_NewParticle(endvec, pt_spark, pcolor1, pcolor2, tex_particle, 0.25f, 0, part->alpha * 2, part->alpha * 4, 1, 0.1, trace.endpos[0] + trace.plane.normal[0], trace.endpos[1] + trace.plane.normal[1], trace.endpos[2] + trace.plane.normal[2], trace.plane.normal[0] * 16, trace.plane.normal[1] * 16, trace.plane.normal[2] * 16 + cl.movevars_gravity * 0.04, 0, 0, 0, 32, pqualityreduction, 0, 1, PBLEND_ADD, PARTICLE_SPARK, -1, -1, -1, 1, 1, 0, 0, NULL);
if (part2)
{
part2->delayedspawn = part->die;
part2->die += part->die - cl.time;
}
}
}
}
else if (part->typeindex == pt_explode || part->typeindex == pt_explode2)
part->time2 = rand()&3; // time2 is used to progress the colour ramp index
#if 0
else if (part->bounce != 0 && part->gravity == 0 && part->typeindex != pt_snow)
{
float lifetime = part->alpha / (part->alphafade ? part->alphafade : 1);
vec3_t endvec;
trace_t trace;
VectorMA(part->org, lifetime, part->vel, endvec);
trace = CL_TraceLine(part->org, endvec, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY, true, false, NULL, false);
part->delayedcollisions = cl.time + lifetime * trace.fraction - 0.1;
}
#endif
return part;
}
/**
* @brief Creates a simple particle, a square like Quake, or a disc like GLQuake
*
* @param[in] origin ?
* @param[in] color_1,color_2 Minimum and maximum range of color, randomly interpolated with pcolor2 to decide particle color
* @param[in] gravity How much effect gravity has on the particle (0-1)
* @param[in] offset_x,offset_y,offset_z Starting origin of particle
* @param[in] velocity_offset_x,velocity_offset_y,velocity_offset_z Starting velocity of particle
* @param[in] air_friction How much the particle slows down, in air, per second (0-1 typically, can slowdown faster than 1)
* @param[in] liquid_friction How much the particle slows down, in liquids, per second (0-1 typically, can slowdown faster than 1)
* @param[in] origin_jitter ?
* @param[in] velocity_jitter ?
* @param[in] lifetime How long the particle can live (note it is also removed if alpha drops to nothing)
*
* @return Pointer to the new particle
*/
particle_t *CL_NewQuakeParticle(
const vec3_t origin,
const unsigned short ptypeindex,
const int color_1,
const int color_2,
const float gravity,
const float offset_x,
const float offset_y,
const float offset_z,
const float velocity_offset_x,
const float velocity_offset_y,
const float velocity_offset_z,
const float air_friction,
const float liquid_friction,
const float origin_jitter,
const float velocity_jitter,
const float lifetime)
{
int texture;
// Set the particle texture based on the value of cl_particles_quake; defaulting to the GLQuake disc
if (cl_particles_quake.integer == 2)
texture = tex_square;
else
texture = tex_particle;
return CL_NewParticle(
origin,
ptypeindex, // type
color_1,
color_2,
texture,
0.8f, // size
0, // size increase
255, // alpha
0, // alpha fade
gravity,
0, // bounce
offset_x,
offset_y,
offset_z,
velocity_offset_x,
velocity_offset_y,
velocity_offset_z,
air_friction,
liquid_friction,
origin_jitter,
velocity_jitter,
true, // quality reduction
lifetime,
1, // stretch
PBLEND_ALPHA, // blend mode
PARTICLE_BILLBOARD, // orientation
-1, // stain color 1
-1, // stain color 2
-1, // stain texture
1, // stain alpha
1, // stain size
0, // angle
0, // spin
NULL // tint
);
}
static void CL_ImmediateBloodStain(particle_t *part)
{
vec3_t v;
int staintex;
// blood creates a splash at spawn, not just at impact, this makes monsters bloody where they are shot
if (part->staintexnum >= 0 && cl_decals.integer)
{
VectorCopy(part->vel, v);
VectorNormalize(v);
staintex = part->staintexnum;
R_DecalSystem_SplatEntities(part->org, v, 1-part->staincolor[0]*(1.0f/255.0f), 1-part->staincolor[1]*(1.0f/255.0f), 1-part->staincolor[2]*(1.0f/255.0f), part->stainalpha*(1.0f/255.0f), particletexture[staintex].s1, particletexture[staintex].t1, particletexture[staintex].s2, particletexture[staintex].t2, part->stainsize);
}
// blood creates a splash at spawn, not just at impact, this makes monsters bloody where they are shot
if (part->typeindex == pt_blood && cl_decals.integer)
{
VectorCopy(part->vel, v);
VectorNormalize(v);
staintex = tex_blooddecal[rand()&7];
R_DecalSystem_SplatEntities(part->org, v, part->color[0]*(1.0f/255.0f), part->color[1]*(1.0f/255.0f), part->color[2]*(1.0f/255.0f), part->alpha*(1.0f/255.0f), particletexture[staintex].s1, particletexture[staintex].t1, particletexture[staintex].s2, particletexture[staintex].t2, part->size * 2);
}
}
void CL_SpawnDecalParticleForSurface(int hitent, const vec3_t org, const vec3_t normal, int color1, int color2, int texnum, float size, float alpha)
{
int l1, l2;
entity_render_t *ent = &cl.entities[hitent].render;
unsigned char color[3];
if (!cl_decals.integer)
return;
if (!ent->allowdecals)
return;
l2 = (int)lhrandom(0.5, 256.5);
l1 = 256 - l2;
color[0] = ((((color1 >> 16) & 0xFF) * l1 + ((color2 >> 16) & 0xFF) * l2) >> 8) & 0xFF;
color[1] = ((((color1 >> 8) & 0xFF) * l1 + ((color2 >> 8) & 0xFF) * l2) >> 8) & 0xFF;
color[2] = ((((color1 >> 0) & 0xFF) * l1 + ((color2 >> 0) & 0xFF) * l2) >> 8) & 0xFF;
if (vid.sRGB3D)
R_DecalSystem_SplatEntities(org, normal, Image_LinearFloatFromsRGB(color[0]), Image_LinearFloatFromsRGB(color[1]), Image_LinearFloatFromsRGB(color[2]), alpha*(1.0f/255.0f), particletexture[texnum].s1, particletexture[texnum].t1, particletexture[texnum].s2, particletexture[texnum].t2, size);
else
R_DecalSystem_SplatEntities(org, normal, color[0]*(1.0f/255.0f), color[1]*(1.0f/255.0f), color[2]*(1.0f/255.0f), alpha*(1.0f/255.0f), particletexture[texnum].s1, particletexture[texnum].t1, particletexture[texnum].s2, particletexture[texnum].t2, size);
}
void CL_SpawnDecalParticleForPoint(const vec3_t org, float maxdist, float size, float alpha, int texnum, int color1, int color2)
{
int i;
vec_t bestfrac;
vec3_t bestorg;
vec3_t bestnormal;
vec3_t org2;
int besthitent = 0, hitent;
trace_t trace;
bestfrac = 10;
for (i = 0;i < 32;i++)
{
VectorRandom(org2);
VectorMA(org, maxdist, org2, org2);
trace = CL_TraceLine(org, org2, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_SKY, 0, 0, collision_extendmovelength.value, true, false, &hitent, false, true);
// take the closest trace result that doesn't end up hitting a NOMARKS
// surface (sky for example)
if (bestfrac > trace.fraction && !(trace.hitq3surfaceflags & Q3SURFACEFLAG_NOMARKS))
{
bestfrac = trace.fraction;