cl_particles.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22
  23 #define MAX_PARTICLES                   16384   // default max # of particles at one time
  24 #define ABSOLUTE_MIN_PARTICLES  512             // no fewer than this no matter what's on the command line
  25
  26 typedef enum
  27 {
  28         pt_static, pt_grav, pt_blob, pt_blob2, pt_bulletsmoke, pt_smoke, pt_snow, pt_rain, pt_spark, pt_bubble, pt_fade, pt_steam, pt_splash, pt_splashpuff, pt_flame, pt_blood, pt_oneframe, pt_lavasplash, pt_raindropsplash, pt_underwaterspark, pt_explosionsplash, pt_stardust
  29 }
  30 ptype_t;
  31
  32 #define P_TEXNUM_FIRSTBIT 0
  33 #define P_TEXNUM_BITS 6
  34 #define P_ORIENTATION_FIRSTBIT (P_TEXNUM_FIRSTBIT + P_TEXNUM_BITS)
  35 #define P_ORIENTATION_BITS 2
  36 #define P_FLAGS_FIRSTBIT (P_ORIENTATION_FIRSTBIT + P_ORIENTATION_BITS)
  37 #define P_DYNLIGHT (1 << (P_FLAGS_FIRSTBIT + 0))
  38 #define P_ADDITIVE (1 << (P_FLAGS_FIRSTBIT + 1))
  39
  40 typedef struct particle_s
  41 {
  42         ptype_t         type;
  43         unsigned int    flags; // dynamically lit, orientation, additive blending, texnum
  44         vec3_t          org;
  45         vec3_t          vel;
  46         float           die;
  47         float           scalex;
  48         float           scaley;
  49         float           alpha; // 0-255
  50         float           time2; // used for various things (snow fluttering, for example)
  51         float           bounce; // how much bounce-back from a surface the particle hits (0 = no physics, 1 = stop and slide, 2 = keep bouncing forever, 1.5 is typical)
  52         vec3_t          oldorg;
  53         vec3_t          vel2; // used for snow fluttering (base velocity, wind for instance)
  54         float           friction; // how much air friction affects this object (objects with a low mass/size ratio tend to get more air friction)
  55         float           pressure; // if non-zero, apply pressure to other particles
  56         qbyte           color[4];
  57 }
  58 particle_t;
  59
  60 static int particlepalette[256] =
  61 {
  62         0x000000,0x0f0f0f,0x1f1f1f,0x2f2f2f,0x3f3f3f,0x4b4b4b,0x5b5b5b,0x6b6b6b,
  63         0x7b7b7b,0x8b8b8b,0x9b9b9b,0xababab,0xbbbbbb,0xcbcbcb,0xdbdbdb,0xebebeb,
  64         0x0f0b07,0x170f0b,0x1f170b,0x271b0f,0x2f2313,0x372b17,0x3f2f17,0x4b371b,
  65         0x533b1b,0x5b431f,0x634b1f,0x6b531f,0x73571f,0x7b5f23,0x836723,0x8f6f23,
  66         0x0b0b0f,0x13131b,0x1b1b27,0x272733,0x2f2f3f,0x37374b,0x3f3f57,0x474767,
  67         0x4f4f73,0x5b5b7f,0x63638b,0x6b6b97,0x7373a3,0x7b7baf,0x8383bb,0x8b8bcb,
  68         0x000000,0x070700,0x0b0b00,0x131300,0x1b1b00,0x232300,0x2b2b07,0x2f2f07,
  69         0x373707,0x3f3f07,0x474707,0x4b4b0b,0x53530b,0x5b5b0b,0x63630b,0x6b6b0f,
  70         0x070000,0x0f0000,0x170000,0x1f0000,0x270000,0x2f0000,0x370000,0x3f0000,
  71         0x470000,0x4f0000,0x570000,0x5f0000,0x670000,0x6f0000,0x770000,0x7f0000,
  72         0x131300,0x1b1b00,0x232300,0x2f2b00,0x372f00,0x433700,0x4b3b07,0x574307,
  73         0x5f4707,0x6b4b0b,0x77530f,0x835713,0x8b5b13,0x975f1b,0xa3631f,0xaf6723,
  74         0x231307,0x2f170b,0x3b1f0f,0x4b2313,0x572b17,0x632f1f,0x733723,0x7f3b2b,
  75         0x8f4333,0x9f4f33,0xaf632f,0xbf772f,0xcf8f2b,0xdfab27,0xefcb1f,0xfff31b,
  76         0x0b0700,0x1b1300,0x2b230f,0x372b13,0x47331b,0x533723,0x633f2b,0x6f4733,
  77         0x7f533f,0x8b5f47,0x9b6b53,0xa77b5f,0xb7876b,0xc3937b,0xd3a38b,0xe3b397,
  78         0xab8ba3,0x9f7f97,0x937387,0x8b677b,0x7f5b6f,0x775363,0x6b4b57,0x5f3f4b,
  79         0x573743,0x4b2f37,0x43272f,0x371f23,0x2b171b,0x231313,0x170b0b,0x0f0707,
  80         0xbb739f,0xaf6b8f,0xa35f83,0x975777,0x8b4f6b,0x7f4b5f,0x734353,0x6b3b4b,
  81         0x5f333f,0x532b37,0x47232b,0x3b1f23,0x2f171b,0x231313,0x170b0b,0x0f0707,
  82         0xdbc3bb,0xcbb3a7,0xbfa39b,0xaf978b,0xa3877b,0x977b6f,0x876f5f,0x7b6353,
  83         0x6b5747,0x5f4b3b,0x533f33,0x433327,0x372b1f,0x271f17,0x1b130f,0x0f0b07,
  84         0x6f837b,0x677b6f,0x5f7367,0x576b5f,0x4f6357,0x475b4f,0x3f5347,0x374b3f,
  85         0x2f4337,0x2b3b2f,0x233327,0x1f2b1f,0x172317,0x0f1b13,0x0b130b,0x070b07,
  86         0xfff31b,0xefdf17,0xdbcb13,0xcbb70f,0xbba70f,0xab970b,0x9b8307,0x8b7307,
  87         0x7b6307,0x6b5300,0x5b4700,0x4b3700,0x3b2b00,0x2b1f00,0x1b0f00,0x0b0700,
  88         0x0000ff,0x0b0bef,0x1313df,0x1b1bcf,0x2323bf,0x2b2baf,0x2f2f9f,0x2f2f8f,
  89         0x2f2f7f,0x2f2f6f,0x2f2f5f,0x2b2b4f,0x23233f,0x1b1b2f,0x13131f,0x0b0b0f,
  90         0x2b0000,0x3b0000,0x4b0700,0x5f0700,0x6f0f00,0x7f1707,0x931f07,0xa3270b,
  91         0xb7330f,0xc34b1b,0xcf632b,0xdb7f3b,0xe3974f,0xe7ab5f,0xefbf77,0xf7d38b,
  92         0xa77b3b,0xb79b37,0xc7c337,0xe7e357,0x7fbfff,0xabe7ff,0xd7ffff,0x670000,
  93         0x8b0000,0xb30000,0xd70000,0xff0000,0xfff393,0xfff7c7,0xffffff,0x9f5b53
  94 };
  95
  96 static int explosparkramp[8] = {0x4b0700, 0x6f0f00, 0x931f07, 0xb7330f, 0xcf632b, 0xe3974f, 0xffe7b5, 0xffffff};
  97 //static int explounderwatersparkramp[8] = {0x00074b, 0x000f6f, 0x071f93, 0x0f33b7, 0x2b63cf, 0x4f97e3, 0xb5e7ff, 0xffffff};
  98
  99 // these must match r_part.c's textures
 100 static const int tex_smoke[8] = {0, 1, 2, 3, 4, 5, 6, 7};
 101 static const int tex_rainsplash[16] = {8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23};
 102 static const int tex_particle = 24;
 103 static const int tex_rain = 25;
 104 static const int tex_bubble = 26;
 105 //static const int tex_rocketglow = 27;
 106
 107 static int                      cl_maxparticles;
 108 static int                      cl_numparticles;
 109 static particle_t       *particles;
 110 static particle_t       **freeparticles; // list used only in compacting particles array
 111 //static renderparticle_t       *cl_renderparticles;
 112
 113 static cvar_t cl_particles = {CVAR_SAVE, "cl_particles", "1"};
 114 static cvar_t cl_particles_size = {CVAR_SAVE, "cl_particles_size", "1"};
 115 static cvar_t cl_particles_bloodshowers = {CVAR_SAVE, "cl_particles_bloodshowers", "1"};
 116 static cvar_t cl_particles_blood = {CVAR_SAVE, "cl_particles_blood", "1"};
 117 static cvar_t cl_particles_blood_size_min = {CVAR_SAVE, "cl_particles_blood_size_min", "5"};
 118 static cvar_t cl_particles_blood_size_max = {CVAR_SAVE, "cl_particles_blood_size_max", "10"};
 119 static cvar_t cl_particles_blood_alpha = {CVAR_SAVE, "cl_particles_blood_alpha", "0.5"};
 120 static cvar_t cl_particles_smoke = {CVAR_SAVE, "cl_particles_smoke", "1"};
 121 static cvar_t cl_particles_sparks = {CVAR_SAVE, "cl_particles_sparks", "1"};
 122 static cvar_t cl_particles_bubbles = {CVAR_SAVE, "cl_particles_bubbles", "1"};
 123 static cvar_t cl_particles_explosions = {CVAR_SAVE, "cl_particles_explosions", "0"};
 124
 125 static mempool_t *cl_part_mempool;
 126
 127 void CL_Particles_Clear(void)
 128 {
 129         cl_numparticles = 0;
 130 }
 131
 132 /*
 133 ===============
 134 CL_InitParticles
 135 ===============
 136 */
 137 void CL_ReadPointFile_f (void);
 138 void CL_Particles_Init (void)
 139 {
 140         int             i;
 141
 142         i = COM_CheckParm ("-particles");
 143
 144         if (i)
 145         {
 146                 cl_maxparticles = (int)(atoi(com_argv[i+1]));
 147                 if (cl_maxparticles < ABSOLUTE_MIN_PARTICLES)
 148                         cl_maxparticles = ABSOLUTE_MIN_PARTICLES;
 149         }
 150         else
 151                 cl_maxparticles = MAX_PARTICLES;
 152
 153         Cmd_AddCommand ("pointfile", CL_ReadPointFile_f);
 154
 155         Cvar_RegisterVariable (&cl_particles);
 156         Cvar_RegisterVariable (&cl_particles_size);
 157         Cvar_RegisterVariable (&cl_particles_bloodshowers);
 158         Cvar_RegisterVariable (&cl_particles_blood);
 159         Cvar_RegisterVariable (&cl_particles_blood_size_min);
 160         Cvar_RegisterVariable (&cl_particles_blood_size_max);
 161         Cvar_RegisterVariable (&cl_particles_blood_alpha);
 162         Cvar_RegisterVariable (&cl_particles_smoke);
 163         Cvar_RegisterVariable (&cl_particles_sparks);
 164         Cvar_RegisterVariable (&cl_particles_bubbles);
 165         Cvar_RegisterVariable (&cl_particles_explosions);
 166
 167         cl_part_mempool = Mem_AllocPool("CL_Part");
 168         particles = (particle_t *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t));
 169         freeparticles = (void *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t *));
 170         cl_numparticles = 0;
 171
 172         // FIXME: r_refdef stuff should be allocated somewhere else?
 173         //r_refdef.particles = cl_renderparticles = Mem_Alloc(cl_refdef_mempool, cl_maxparticles * sizeof(renderparticle_t));
 174 }
 175
 176 #define particle(ptype, porientation, pcolor1, pcolor2, ptex, plight, padditive, pscalex, pscaley, palpha, ptime, pbounce, px, py, pz, pvx, pvy, pvz, ptime2, pvx2, pvy2, pvz2, pfriction, ppressure)\
 177 {\
 178         if (cl_numparticles >= cl_maxparticles)\
 179                 return;\
 180         {\
 181                 particle_t      *part;\
 182                 int tempcolor, tempcolor2, cr1, cg1, cb1, cr2, cg2, cb2;\
 183                 unsigned int partflags;\
 184                 partflags = ((porientation) << P_ORIENTATION_FIRSTBIT) | ((ptex) << P_TEXNUM_FIRSTBIT);\
 185                 if (padditive)\
 186                         partflags |= P_ADDITIVE;\
 187                 if (plight)\
 188                         partflags |= P_DYNLIGHT;\
 189                 tempcolor = (pcolor1);\
 190                 tempcolor2 = (pcolor2);\
 191                 cr2 = ((tempcolor2) >> 16) & 0xFF;\
 192                 cg2 = ((tempcolor2) >> 8) & 0xFF;\
 193                 cb2 = (tempcolor2) & 0xFF;\
 194                 if (tempcolor != tempcolor2)\
 195                 {\
 196                         cr1 = ((tempcolor) >> 16) & 0xFF;\
 197                         cg1 = ((tempcolor) >> 8) & 0xFF;\
 198                         cb1 = (tempcolor) & 0xFF;\
 199                         tempcolor = rand() & 0xFF;\
 200                         cr2 = (((cr2 - cr1) * tempcolor) >> 8) + cr1;\
 201                         cg2 = (((cg2 - cg1) * tempcolor) >> 8) + cg1;\
 202                         cb2 = (((cb2 - cb1) * tempcolor) >> 8) + cb1;\
 203                 }\
 204                 part = &particles[cl_numparticles++];\
 205                 part->type = (ptype);\
 206                 part->color[0] = cr2;\
 207                 part->color[1] = cg2;\
 208                 part->color[2] = cb2;\
 209                 part->color[3] = 0xFF;\
 210                 part->flags = partflags;\
 211                 /*part->tex = (ptex);*/\
 212                 /*part->orientation = (porientation);*/\
 213                 /*part->dynlight = (plight);*/\
 214                 /*part->additive = (padditive);*/\
 215                 part->scalex = (pscalex);\
 216                 part->scaley = (pscaley);\
 217                 part->alpha = (palpha);\
 218                 part->die = cl.time + (ptime);\
 219                 part->bounce = (pbounce);\
 220                 part->org[0] = (px);\
 221                 part->org[1] = (py);\
 222                 part->org[2] = (pz);\
 223                 part->vel[0] = (pvx);\
 224                 part->vel[1] = (pvy);\
 225                 part->vel[2] = (pvz);\
 226                 part->time2 = (ptime2);\
 227                 part->vel2[0] = (pvx2);\
 228                 part->vel2[1] = (pvy2);\
 229                 part->vel2[2] = (pvz2);\
 230                 part->friction = (pfriction);\
 231                 part->pressure = (ppressure);\
 232         }\
 233 }
 234
 235 /*
 236 ===============
 237 CL_EntityParticles
 238 ===============
 239 */
 240 void CL_EntityParticles (entity_t *ent)
 241 {
 242         int                     i;
 243         float           angle;
 244         float           sp, sy, cp, cy;
 245         vec3_t          forward;
 246         float           dist;
 247         float           beamlength;
 248         static vec3_t avelocities[NUMVERTEXNORMALS];
 249         if (!cl_particles.integer) return;
 250
 251         dist = 64;
 252         beamlength = 16;
 253
 254         if (!avelocities[0][0])
 255                 for (i=0 ; i<NUMVERTEXNORMALS*3 ; i++)
 256                         avelocities[0][i] = (rand()&255) * 0.01;
 257
 258         for (i=0 ; i<NUMVERTEXNORMALS ; i++)
 259         {
 260                 angle = cl.time * avelocities[i][0];
 261                 sy = sin(angle);
 262                 cy = cos(angle);
 263                 angle = cl.time * avelocities[i][1];
 264                 sp = sin(angle);
 265                 cp = cos(angle);
 266
 267                 forward[0] = cp*cy;
 268                 forward[1] = cp*sy;
 269                 forward[2] = -sp;
 270
 271                 particle(pt_oneframe, PARTICLE_BILLBOARD, particlepalette[0x6f], particlepalette[0x6f], tex_particle, false, false, 2, 2, 255, 9999, 0, ent->render.origin[0] + m_bytenormals[i][0]*dist + forward[0]*beamlength, ent->render.origin[1] + m_bytenormals[i][1]*dist + forward[1]*beamlength, ent->render.origin[2] + m_bytenormals[i][2]*dist + forward[2]*beamlength, 0, 0, 0, 0, 0, 0, 0, 0, 0);
 272         }
 273 }
 274
 275
 276 void CL_ReadPointFile_f (void)
 277 {
 278         vec3_t  org;
 279         int             r, c;
 280         char    *pointfile, *pointfilepos, *t, tchar;
 281
 282         pointfile = COM_LoadFile(va("maps/%s.pts", sv.name), true);
 283         if (!pointfile)
 284         {
 285                 Con_Printf ("couldn't open %s.pts\n", sv.name);
 286                 return;
 287         }
 288
 289         Con_Printf ("Reading %s.pts...\n", sv.name);
 290         c = 0;
 291         pointfilepos = pointfile;
 292         while (*pointfilepos)
 293         {
 294                 while (*pointfilepos == '\n' || *pointfilepos == '\r')
 295                         pointfilepos++;
 296                 if (!*pointfilepos)
 297                         break;
 298                 t = pointfilepos;
 299                 while (*t && *t != '\n' && *t != '\r')
 300                         t++;
 301                 tchar = *t;
 302                 *t = 0;
 303                 r = sscanf (pointfilepos,"%f %f %f", &org[0], &org[1], &org[2]);
 304                 *t = tchar;
 305                 pointfilepos = t;
 306                 if (r != 3)
 307                         break;
 308                 c++;
 309
 310                 if (cl_numparticles >= cl_maxparticles)
 311                 {
 312                         Con_Printf ("Not enough free particles\n");
 313                         break;
 314                 }
 315                 particle(pt_static, PARTICLE_BILLBOARD, particlepalette[(-c)&15], particlepalette[(-c)&15], tex_particle, false, false, 2, 2, 255, 99999, 0, org[0], org[1], org[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
 316         }
 317
 318         Mem_Free(pointfile);
 319         Con_Printf ("%i points read\n", c);
 320 }
 321
 322 /*
 323 ===============
 324 CL_ParseParticleEffect
 325
 326 Parse an effect out of the server message
 327 ===============
 328 */
 329 void CL_ParseParticleEffect (void)
 330 {
 331         vec3_t          org, dir;
 332         int                     i, count, msgcount, color;
 333
 334         for (i=0 ; i<3 ; i++)
 335                 org[i] = MSG_ReadCoord ();
 336         for (i=0 ; i<3 ; i++)
 337                 dir[i] = MSG_ReadChar () * (1.0/16);
 338         msgcount = MSG_ReadByte ();
 339         color = MSG_ReadByte ();
 340
 341         if (msgcount == 255)
 342                 count = 1024;
 343         else
 344                 count = msgcount;
 345
 346         CL_RunParticleEffect (org, dir, color, count);
 347 }
 348
 349 /*
 350 ===============
 351 CL_ParticleExplosion
 352
 353 ===============
 354 */
 355 void CL_ParticleExplosion (vec3_t org, int smoke)
 356 {
 357         int i;
 358         R_Stain(org, 96, 80, 80, 80, 128, 176, 176, 176, 128);
 359
 360         i = Mod_PointInLeaf(org, cl.worldmodel)->contents;
 361         if (i == CONTENTS_SLIME || i == CONTENTS_WATER)
 362                 for (i = 0;i < 128;i++)
 363                         particle(pt_bubble, PARTICLE_BILLBOARD, 0x808080, 0xFFFFFF, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, org[0] + lhrandom(-16, 16), org[1] + lhrandom(-16, 16), org[2] + lhrandom(-16, 16), lhrandom(-96, 96), lhrandom(-96, 96), lhrandom(-96, 96), 0, 0, 0, 0, 0, 0);
 364
 365         if (cl_particles.integer && cl_particles_explosions.integer)
 366         {
 367                 int j, k;
 368                 float f;
 369                 vec3_t v, end, ang;
 370                 qbyte noise1[32*32], noise2[32*32];
 371
 372                 VectorClear(end); // hush MSVC
 373                 i = Mod_PointInLeaf(org, cl.worldmodel)->contents;
 374                 if (i == CONTENTS_SLIME || i == CONTENTS_WATER)
 375                 {
 376                         //for (i = 0;i < 128;i++)
 377                         //      particle(pt_bubble, PARTICLE_BILLBOARD, 0x808080, 0xFFFFFF, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, org[0] + lhrandom(-16, 16), org[1] + lhrandom(-16, 16), org[2] + lhrandom(-16, 16), lhrandom(-96, 96), lhrandom(-96, 96), lhrandom(-96, 96), 0, 0, 0, 0, 0, 0);
 378
 379                         ang[2] = lhrandom(0, 360);
 380                         fractalnoisequick(noise1, 32, 4);
 381                         fractalnoisequick(noise2, 32, 8);
 382                         for (i = 0;i < 32;i++)
 383                         {
 384                                 for (j = 0;j < 32;j++)
 385                                 {
 386                                         VectorRandom(v);
 387                                         VectorMA(org, 16, v, v);
 388                                         TraceLine(org, v, end, NULL, 0, true);
 389                                         ang[0] = (j + 0.5f) * (360.0f / 32.0f);
 390                                         ang[1] = (i + 0.5f) * (360.0f / 32.0f);
 391                                         AngleVectors(ang, v, NULL, NULL);
 392                                         f = noise1[j*32+i] * 1.5f;
 393                                         VectorScale(v, f, v);
 394                                         k = noise2[j*32+i] * 0x010101;
 395                                         particle(pt_underwaterspark, PARTICLE_BILLBOARD, k, k, tex_smoke[rand()&7], false, true, 10, 10, lhrandom(128, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2], 512.0f, 0, 0, 0, 2, 0);
 396                                         VectorScale(v, 0.75, v);
 397                                         k = explosparkramp[(noise2[j*32+i] >> 5)];
 398                                         particle(pt_underwaterspark, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 10, 10, lhrandom(128, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2], 512.0f, 0, 0, 0, 2, 0);
 399                                 }
 400                         }
 401                 }
 402                 else
 403                 {
 404                         ang[2] = lhrandom(0, 360);
 405                         fractalnoisequick(noise1, 32, 4);
 406                         fractalnoisequick(noise2, 32, 8);
 407                         for (i = 0;i < 32;i++)
 408                         {
 409                                 for (j = 0;j < 32;j++)
 410                                 {
 411                                         VectorRandom(v);
 412                                         VectorMA(org, 16, v, v);
 413                                         TraceLine(org, v, end, NULL, 0, true);
 414                                         ang[0] = (j + 0.5f) * (360.0f / 32.0f);
 415                                         ang[1] = (i + 0.5f) * (360.0f / 32.0f);
 416                                         AngleVectors(ang, v, NULL, NULL);
 417                                         f = noise1[j*32+i] * 1.5f;
 418                                         VectorScale(v, f, v);
 419                                         k = noise2[j*32+i] * 0x010101;
 420                                         particle(pt_spark, PARTICLE_BILLBOARD, k, k, tex_smoke[rand()&7], false, true, 10, 10, lhrandom(128, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2] + 160.0f, 512.0f, 0, 0, 0, 2, 0);
 421                                         VectorScale(v, 0.75, v);
 422                                         k = explosparkramp[(noise2[j*32+i] >> 5)];
 423                                         particle(pt_spark, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 10, 10, lhrandom(128, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2] + 160.0f, 512.0f, 0, 0, 0, 2, 0);
 424                                 //      VectorRandom(v);
 425                                 //      VectorScale(v, 384, v);
 426                                 //      particle(pt_spark, PARTICLE_BILLBOARD, explosparkramp[rand()&7], tex_particle, false, true, 2, 2, lhrandom(16, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2] + 160.0f, 512.0f, 0, 0, 0, 2, 0);
 427                                 }
 428                         }
 429                 }
 430         }
 431         else
 432         {
 433                 /*
 434                 int i;
 435                 vec3_t v;
 436                 for (i = 0;i < 256;i++)
 437                 {
 438                         do
 439                         {
 440                                 VectorRandom(v);
 441                         }
 442                         while(DotProduct(v,v) < 0.75);
 443                         VectorScale(v, 512, v);
 444                         k = explosparkramp[rand()&7];
 445                         particle(pt_spark, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 4, 4, 255, 9999, 1.5, org[0], org[1], org[2], v[0], v[1], v[2] + 160.0f, 512.0f, 0, 0, 0, 2, 0);
 446                 }
 447                 */
 448                 R_NewExplosion(org);
 449         }
 450 }
 451
 452 /*
 453 ===============
 454 CL_ParticleExplosion2
 455
 456 ===============
 457 */
 458 void CL_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength)
 459 {
 460         int i, k;
 461         if (!cl_particles.integer) return;
 462
 463         for (i = 0;i < 512;i++)
 464         {
 465                 k = particlepalette[colorStart + (i % colorLength)];
 466                 particle(pt_fade, PARTICLE_BILLBOARD, k, k, tex_particle, false, false, 1.5, 1.5, 255, 0.3, 0, org[0] + lhrandom(-8, 8), org[1] + lhrandom(-8, 8), org[2] + lhrandom(-8, 8), lhrandom(-192, 192), lhrandom(-192, 192), lhrandom(-192, 192), 384, 0, 0, 0, 1, 0);
 467         }
 468 }
 469
 470 /*
 471 ===============
 472 CL_BlobExplosion
 473
 474 ===============
 475 */
 476 void CL_BlobExplosion (vec3_t org)
 477 {
 478         //int i;
 479         if (!cl_particles.integer) return;
 480
 481         R_Stain(org, 96, 80, 80, 80, 128, 176, 176, 176, 128);
 482         //R_Stain(org, 96, 96, 64, 96, 128, 160, 128, 160, 128);
 483
 484         R_NewExplosion(org);
 485
 486         //for (i = 0;i < 256;i++)
 487         //      particle(pt_blob , PARTICLE_BILLBOARD, particlepalette[ 66+(rand()%6)], tex_particle, false, true, 4, 4, 255, 9999, 0, org[0] + lhrandom(-16, 16), org[1] + lhrandom(-16, 16), org[2] + lhrandom(-16, 16), lhrandom(-4, 4), lhrandom(-4, 4), lhrandom(-128, 128), 0, 0, 0, 0, 0, 0);
 488         //for (i = 0;i < 256;i++)
 489         //      particle(pt_blob2, PARTICLE_BILLBOARD, particlepalette[150+(rand()%6)], tex_particle, false, true, 4, 4, 255, 9999, 0, org[0] + lhrandom(-16, 16), org[1] + lhrandom(-16, 16), org[2] + lhrandom(-16, 16), lhrandom(-4, 4), lhrandom(-4, 4), lhrandom(-128, 128), 0, 0, 0, 0, 0, 0);
 490 }
 491
 492 /*
 493 ===============
 494 CL_RunParticleEffect
 495
 496 ===============
 497 */
 498 void CL_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count)
 499 {
 500         int k;
 501         if (!cl_particles.integer) return;
 502
 503         if (count == 1024)
 504         {
 505                 CL_ParticleExplosion(org, false);
 506                 return;
 507         }
 508         while (count--)
 509         {
 510                 k = particlepalette[color + (rand()&7)];
 511                 particle(pt_fade, PARTICLE_BILLBOARD, k, k, tex_particle, false, false, 1, 1, 128, 9999, 0, org[0] + lhrandom(-8, 8), org[1] + lhrandom(-8, 8), org[2] + lhrandom(-8, 8), lhrandom(-15, 15), lhrandom(-15, 15), lhrandom(-15, 15), 384, 0, 0, 0, 0, 0);
 512         }
 513 }
 514
 515 // LordHavoc: added this for spawning sparks/dust (which have strong gravity)
 516 /*
 517 ===============
 518 CL_SparkShower
 519 ===============
 520 */
 521 void CL_SparkShower (vec3_t org, vec3_t dir, int count)
 522 {
 523         int k;
 524         if (!cl_particles.integer) return;
 525
 526         R_Stain(org, 32, 96, 96, 96, 32, 128, 128, 128, 32);
 527
 528         // smoke puff
 529         if (cl_particles_smoke.integer)
 530                 particle(pt_bulletsmoke, PARTICLE_BILLBOARD, 0xA0A0A0, 0xFFFFFF, tex_smoke[rand()&7], true, true, 2, 2, 255, 9999, 0, org[0], org[1], org[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(0, 16), 0, 0, 0, 0, 0, 0);
 531
 532         if (cl_particles_sparks.integer)
 533         {
 534                 // sparks
 535                 while(count--)
 536                 {
 537                         k = particlepalette[0x68 + (rand() & 7)];
 538                         particle(pt_spark, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 1, 1, lhrandom(64, 128), 9999, 0, org[0], org[1], org[2], lhrandom(-64, 64) + dir[0], lhrandom(-64, 64) + dir[1], lhrandom(0, 128) + dir[2], 480, 0, 0, 0, 1, 0);
 539                 }
 540         }
 541 }
 542
 543 void CL_PlasmaBurn (vec3_t org)
 544 {
 545         if (!cl_particles.integer) return;
 546
 547         R_Stain(org, 48, 96, 96, 96, 48, 128, 128, 128, 48);
 548 }
 549
 550 void CL_BloodPuff (vec3_t org, vec3_t vel, int count)
 551 {
 552         float r, s;
 553         // bloodcount is used to accumulate counts too small to cause a blood particle
 554         static int bloodcount = 0;
 555         if (!cl_particles.integer) return;
 556         if (!cl_particles_blood.integer) return;
 557
 558         s = count + 32.0f;
 559         count *= 5.0f;
 560         if (count > 1000)
 561                 count = 1000;
 562         bloodcount += count;
 563         while(bloodcount > 0)
 564         {
 565                 r = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
 566                 particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, r, r, cl_particles_blood_alpha.value * 255, 9999, -1, org[0], org[1], org[2], vel[0] + lhrandom(-s, s), vel[1] + lhrandom(-s, s), vel[2] + lhrandom(-s, s), 0, 0, 0, 0, 1, 0);
 567                 bloodcount -= r;
 568         }
 569 }
 570
 571 void CL_BloodShower (vec3_t mins, vec3_t maxs, float velspeed, int count)
 572 {
 573         float c;
 574         float r;
 575         vec3_t diff, center, velscale;
 576         if (!cl_particles.integer) return;
 577         if (!cl_particles_bloodshowers.integer) return;
 578         if (!cl_particles_blood.integer) return;
 579
 580         VectorSubtract(maxs, mins, diff);
 581         center[0] = (mins[0] + maxs[0]) * 0.5;
 582         center[1] = (mins[1] + maxs[1]) * 0.5;
 583         center[2] = (mins[2] + maxs[2]) * 0.5;
 584         // FIXME: change velspeed back to 2.0x after fixing mod
 585         velscale[0] = velspeed * 2.0 / diff[0];
 586         velscale[1] = velspeed * 2.0 / diff[1];
 587         velscale[2] = velspeed * 2.0 / diff[2];
 588
 589         c = count * 5;
 590         while (c > 0)
 591         {
 592                 vec3_t org, vel;
 593                 org[0] = lhrandom(mins[0], maxs[0]);
 594                 org[1] = lhrandom(mins[1], maxs[1]);
 595                 org[2] = lhrandom(mins[2], maxs[2]);
 596                 vel[0] = (org[0] - center[0]) * velscale[0];
 597                 vel[1] = (org[1] - center[1]) * velscale[1];
 598                 vel[2] = (org[2] - center[2]) * velscale[2];
 599                 r = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
 600                 c -= r;
 601                 particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, r, r, cl_particles_blood_alpha.value * 255, 9999, -1, org[0], org[1], org[2], vel[0], vel[1], vel[2], 0, 0, 0, 0, 1, 0);
 602         }
 603 }
 604
 605 void CL_ParticleCube (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int gravity, int randomvel)
 606 {
 607         int k;
 608         float t;
 609         if (!cl_particles.integer) return;
 610         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
 611         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
 612         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
 613
 614         while (count--)
 615         {
 616                 k = particlepalette[colorbase + (rand()&3)];
 617                 particle(gravity ? pt_grav : pt_static, PARTICLE_BILLBOARD, k, k, tex_particle, false, false, 2, 2, 255, lhrandom(1, 2), 0, lhrandom(mins[0], maxs[0]), lhrandom(mins[1], maxs[1]), lhrandom(mins[2], maxs[2]), dir[0] + lhrandom(-randomvel, randomvel), dir[1] + lhrandom(-randomvel, randomvel), dir[2] + lhrandom(-randomvel, randomvel), 0, 0, 0, 0, 0, 0);
 618         }
 619 }
 620
 621 void CL_ParticleRain (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int type)
 622 {
 623         int k;
 624         vec3_t vel;
 625         float t, z;
 626         if (!cl_particles.integer) return;
 627         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
 628         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
 629         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
 630         if (dir[2] < 0) // falling
 631         {
 632                 t = (maxs[2] - mins[2]) / -dir[2];
 633                 z = maxs[2];
 634         }
 635         else // rising??
 636         {
 637                 t = (maxs[2] - mins[2]) / dir[2];
 638                 z = mins[2];
 639         }
 640         if (t < 0 || t > 2) // sanity check
 641                 t = 2;
 642
 643         switch(type)
 644         {
 645         case 0:
 646                 count *= 4; // ick, this should be in the mod or maps?
 647
 648                 while(count--)
 649                 {
 650                         vel[0] = dir[0] + lhrandom(-16, 16);
 651                         vel[1] = dir[1] + lhrandom(-16, 16);
 652                         vel[2] = dir[2] + lhrandom(-32, 32);
 653                         k = particlepalette[colorbase + (rand()&3)];
 654                         particle(pt_rain, PARTICLE_UPRIGHT_FACING, k, k, tex_particle, true, true, 1, 64, 64, t, 0, lhrandom(mins[0], maxs[0]), lhrandom(mins[1], maxs[1]), z, vel[0], vel[1], vel[2], 0, vel[0], vel[1], vel[2], 0, 0);
 655                 }
 656                 break;
 657         case 1:
 658                 while(count--)
 659                 {
 660                         vel[0] = dir[0] + lhrandom(-16, 16);
 661                         vel[1] = dir[1] + lhrandom(-16, 16);
 662                         vel[2] = dir[2] + lhrandom(-32, 32);
 663                         k = particlepalette[colorbase + (rand()&3)];
 664                         particle(pt_snow, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 2, 2, 255, t, 0, lhrandom(mins[0], maxs[0]), lhrandom(mins[1], maxs[1]), z, vel[0], vel[1], vel[2], 0, vel[0], vel[1], vel[2], 0, 0);
 665                 }
 666                 break;
 667         default:
 668                 Host_Error("CL_ParticleRain: unknown type %i (0 = rain, 1 = snow)\n", type);
 669         }
 670 }
 671
 672 void CL_Stardust (vec3_t mins, vec3_t maxs, int count)
 673 {
 674         int k;
 675         float t;
 676         vec3_t o, v, center;
 677         //Con_Printf("CL_Stardust ('%f %f %f', '%f %f %f', %d);\n", mins[0], mins[1], mins[2], maxs[0], maxs[1], maxs[2], count);
 678         if (!cl_particles.integer) return;
 679
 680         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
 681         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
 682         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
 683
 684         center[0] = (mins[0] + maxs[0]) * 0.5f;
 685         center[1] = (mins[1] + maxs[1]) * 0.5f;
 686         center[2] = (mins[2] + maxs[2]) * 0.5f;
 687
 688         while (count--)
 689         {
 690                 k = particlepalette[224 + (rand()&15)];
 691                 o[0] = lhrandom(mins[0], maxs[0]);
 692                 o[1] = lhrandom(mins[1], maxs[1]);
 693                 o[2] = lhrandom(mins[2], maxs[2]);
 694                 VectorSubtract(o, center, v);
 695                 VectorNormalizeFast(v);
 696                 VectorScale(v, 100, v);
 697                 v[2] += sv_gravity.value * 0.15f;
 698                 particle(pt_stardust, PARTICLE_BILLBOARD, 0x903010, 0xFFD030, tex_particle, false, true, 1.5, 1.5, lhrandom(64, 128), 9999, 0, o[0], o[1], o[2], v[0], v[1], v[2], 0, 0, 0, 0, 0, 0);
 699         }
 700 }
 701
 702 void CL_FlameCube (vec3_t mins, vec3_t maxs, int count)
 703 {
 704         int k;
 705         float t;
 706         if (!cl_particles.integer) return;
 707         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
 708         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
 709         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
 710
 711         while (count--)
 712         {
 713                 k = particlepalette[224 + (rand()&15)];
 714                 particle(pt_flame, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 4, 4, lhrandom(64, 128), 9999, 0, lhrandom(mins[0], maxs[0]), lhrandom(mins[1], maxs[1]), lhrandom(mins[2], maxs[2]), lhrandom(-32, 32), lhrandom(-32, 32), lhrandom(0, 64), 0, 0, 0, 0, 1, 0);
 715         }
 716 }
 717
 718 void CL_Flames (vec3_t org, vec3_t vel, int count)
 719 {
 720         int k;
 721         if (!cl_particles.integer) return;
 722
 723         while (count--)
 724         {
 725                 k = particlepalette[224 + (rand()&15)];
 726                 particle(pt_flame, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 4, 4, lhrandom(64, 128), 9999, 1.1, org[0], org[1], org[2], vel[0] + lhrandom(-128, 128), vel[1] + lhrandom(-128, 128), vel[2] + lhrandom(-128, 128), 0, 0, 0, 0, 1, 0);
 727         }
 728 }
 729
 730
 731
 732 /*
 733 ===============
 734 CL_LavaSplash
 735
 736 ===============
 737 */
 738 void CL_LavaSplash (vec3_t origin)
 739 {
 740         int                     i, j, k;
 741         float           vel;
 742         vec3_t          dir, org;
 743         if (!cl_particles.integer) return;
 744
 745         for (i=-128 ; i<128 ; i+=16)
 746         {
 747                 for (j=-128 ; j<128 ; j+=16)
 748                 {
 749                         dir[0] = j + lhrandom(0, 8);
 750                         dir[1] = i + lhrandom(0, 8);
 751                         dir[2] = 256;
 752                         org[0] = origin[0] + dir[0];
 753                         org[1] = origin[1] + dir[1];
 754                         org[2] = origin[2] + lhrandom(0, 64);
 755                         vel = lhrandom(50, 120) / VectorLength(dir); // normalize and scale
 756                         k = particlepalette[224 + (rand()&7)];
 757                         particle(pt_lavasplash, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 7, 7, 255, 9999, 0, org[0], org[1], org[2], dir[0] * vel, dir[1] * vel, dir[2] * vel, 0, 0, 0, 0, 0, 0);
 758                 }
 759         }
 760 }
 761
 762 /*
 763 ===============
 764 CL_TeleportSplash
 765
 766 ===============
 767 */
 768 void CL_TeleportSplash (vec3_t org)
 769 {
 770         int                     i, j, k;
 771         if (!cl_particles.integer) return;
 772
 773         for (i=-16 ; i<16 ; i+=8)
 774                 for (j=-16 ; j<16 ; j+=8)
 775                         for (k=-24 ; k<32 ; k+=8)
 776                                 //particle(pt_fade, PARTICLE_BILLBOARD, 0xA0A0A0, 0xFFFFFF, tex_particle, false, true, 1.5, 1.5, lhrandom(64, 128), 9999, 0, org[0] + i + lhrandom(0, 8), org[1] + j + lhrandom(0, 8), org[2] + k + lhrandom(0, 8), i*2 + lhrandom(-12.5, 12.5), j*2 + lhrandom(-12.5, 12.5), k*2 + lhrandom(27.5, 52.5), 384.0f, 0, 0, 0, 1, 0);
 777                                 particle(pt_fade, PARTICLE_BILLBOARD, 0xA0A0A0, 0xFFFFFF, tex_particle, false, true, 10, 10, lhrandom(64, 128), 9999, 0, org[0] + i + lhrandom(0, 8), org[1] + j + lhrandom(0, 8), org[2] + k + lhrandom(0, 8), lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-256, 256), 256.0f, 0, 0, 0, 1, 0);
 778 }
 779
 780 void CL_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent)
 781 {
 782         vec3_t          vec, dir, vel, pos;
 783         float           len, dec, speed;
 784         int                     contents, bubbles;
 785         if (!cl_particles.integer) return;
 786
 787         VectorSubtract(end, start, dir);
 788         VectorNormalize(dir);
 789
 790         //if (type == 0 && host_frametime != 0) // rocket glow
 791         //      particle(pt_oneframe, PARTICLE_BILLBOARD, 0xFFFFFF, 0xFFFFFF, tex_rocketglow, false, true, 24, 24, 255, 9999, 0, end[0] - 12 * dir[0], end[1] - 12 * dir[1], end[2] - 12 * dir[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
 792
 793         VectorSubtract (end, start, vec);
 794         len = VectorNormalizeLength (vec);
 795         dec = -ent->persistent.trail_time;
 796         ent->persistent.trail_time += len;
 797         if (ent->persistent.trail_time < 0.01f)
 798                 return;
 799
 800         speed = 1.0f / (ent->state_current.time - ent->state_previous.time);
 801         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, vel);
 802         VectorScale(vel, speed, vel);
 803
 804         // advance into this frame to reach the first puff location
 805         VectorMA(start, dec, vec, pos);
 806         len -= dec;
 807
 808         // if we skip out, leave it reset
 809         ent->persistent.trail_time = 0.0f;
 810
 811         contents = Mod_PointInLeaf(pos, cl.worldmodel)->contents;
 812         if (contents == CONTENTS_SKY || contents == CONTENTS_LAVA)
 813                 return;
 814
 815         bubbles = (contents == CONTENTS_WATER || contents == CONTENTS_SLIME);
 816
 817         while (len >= 0)
 818         {
 819                 switch (type)
 820                 {
 821                         case 0: // rocket trail
 822                                 if (!cl_particles_smoke.integer)
 823                                         return;
 824                                 //dec = 5;
 825                                 //particle(pt_fade, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_particle, true, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 256.0f, 0, 0, 0, 0, 0);
 826                                 dec = 6;
 827                                 particle(pt_fade, PARTICLE_BILLBOARD, 0x303030, 0x606060, tex_smoke[rand()&7], true, false, dec, dec, 64, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-5, 5), lhrandom(-5, 5), lhrandom(-5, 5), 64.0f, 0, 0, 0, 0, 0);
 828                                 //particle(pt_fade, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], false, true, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-10, 10), lhrandom(-10, 10), lhrandom(-10, 10), 128.0f, 0, 0, 0, 0, 0);
 829                                 //dec = 10;
 830                                 //particle(pt_smoke, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], false, true, 2, 2, 160, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
 831                                 if (bubbles && cl_particles_bubbles.integer)
 832                                 {
 833                                         particle(pt_bubble, PARTICLE_BILLBOARD, 0x404040, 0x808080, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
 834                                         //particle(pt_bubble, PARTICLE_BILLBOARD, 0x404040, 0x808080, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
 835                                 }
 836                                 else
 837                                 {
 838                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 2, 2, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 512.0f, 0, 0, 0, 1, 0);
 839                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 2, 2, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 512.0f, 0, 0, 0, 1, 0);
 840                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64) - vel[0] * 0.0625, lhrandom(-64, 64) - vel[1] * 0.0625, lhrandom(-64, 64) - vel[2] * 0.0625, 512.0f, 0, 0, 0, 1, 0);
 841                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64) - vel[0] * 0.0625, lhrandom(-64, 64) - vel[1] * 0.0625, lhrandom(-64, 64) - vel[2] * 0.0625, 512.0f, 0, 0, 0, 1, 0);
 842                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64) - vel[0] * 0.0625, lhrandom(-64, 64) - vel[1] * 0.0625, lhrandom(-64, 64) - vel[2] * 0.0625, 512.0f, 0, 0, 0, 1, 0);
 843                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64) - vel[0] * 0.0625, lhrandom(-64, 64) - vel[1] * 0.0625, lhrandom(-64, 64) - vel[2] * 0.0625, 512.0f, 0, 0, 0, 1, 0);
 844                                 }
 845                                 break;
 846
 847                         case 1: // grenade trail
 848                                 // FIXME: make it gradually stop smoking
 849                                 if (!cl_particles_smoke.integer)
 850                                         return;
 851                                 //dec = 5;
 852                                 //particle(pt_fade, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_particle, true, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 256.0f, 0, 0, 0, 0, 0);
 853                                 dec = 6;
 854                                 particle(pt_fade, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], true, false, dec, dec, 64, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-5, 5), lhrandom(-5, 5), lhrandom(-5, 5), 128.0f, 0, 0, 0, 0, 0);
 855                                 //particle(pt_smoke, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], false, true, 2, 2, 160, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
 856                                 if (bubbles && cl_particles_bubbles.integer)
 857                                 {
 858                                         particle(pt_bubble, PARTICLE_BILLBOARD, 0x404040, 0x808080, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
 859                                         //particle(pt_bubble, PARTICLE_BILLBOARD, c * 2, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
 860                                 }
 861                                 break;
 862
 863
 864                         case 2: // blood
 865                                 if (!cl_particles_blood.integer)
 866                                         return;
 867                                 dec = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
 868                                 particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, dec, dec, cl_particles_blood_alpha.value * 255.0f, 9999, -1, pos[0], pos[1], pos[2], vel[0] * 0.5f + lhrandom(-64, 64), vel[1] * 0.5f + lhrandom(-64, 64), vel[2] * 0.5f + lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
 869                                 //particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, dec, dec, cl_particles_blood_alpha.value * 255.0f, 9999, -1, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
 870                                 //particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_particle, true, false, dec, dec, cl_particles_blood_alpha.value * 255.0f, 9999, -1, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
 871                                 break;
 872
 873                         case 4: // slight blood
 874                                 if (!cl_particles_blood.integer)
 875                                         return;
 876                                 dec = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
 877                                 particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, dec, dec, cl_particles_blood_alpha.value * 255.0f, 9999, -1, pos[0], pos[1], pos[2], vel[0] * 0.5f + lhrandom(-64, 64), vel[1] * 0.5f + lhrandom(-64, 64), vel[2] * 0.5f + lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
 878                                 //particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, dec, dec, cl_particles_blood_alpha.value * 128.0f, 9999, -1, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
 879                                 //particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_particle, true, false, dec, dec, cl_particles_blood_alpha.value * 128.0f, 9999, -1, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
 880                                 break;
 881
 882                         case 3: // green tracer
 883                                 dec = 6;
 884                                 //particle(pt_fade, PARTICLE_BILLBOARD, 0x373707, 0x373707, tex_particle, false, true, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 384.0f, 0, 0, 0, 0, 0);
 885                                 particle(pt_fade, PARTICLE_BILLBOARD, 0x373707, 0x373707, tex_particle, false, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 384.0f, 0, 0, 0, 0, 0);
 886                                 break;
 887
 888                         case 5: // flame tracer
 889                                 dec = 6;
 890                                 //particle(pt_fade, PARTICLE_BILLBOARD, 0xCF632B, 0xCF632B, tex_particle, false, true, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 384.0f, 0, 0, 0, 0, 0);
 891                                 particle(pt_fade, PARTICLE_BILLBOARD, 0xCF632B, 0xCF632B, tex_particle, false, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 384.0f, 0, 0, 0, 0, 0);
 892                                 break;
 893
 894                         case 6: // voor trail
 895                                 dec = 6;
 896                                 //particle(pt_fade, PARTICLE_BILLBOARD, 0x47232B, 0x47232B, tex_particle, false, true, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 384.0f, 0, 0, 0, 0, 0);
 897                                 particle(pt_fade, PARTICLE_BILLBOARD, 0x47232B, 0x47232B, tex_particle, false, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 384.0f, 0, 0, 0, 0, 0);
 898                                 break;
 899
 900                         case 7: // Nehahra smoke tracer
 901                                 if (!cl_particles_smoke.integer)
 902                                         return;
 903                                 dec = 10;
 904                                 particle(pt_smoke, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], true, false, dec, dec, 64, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
 905                                 break;
 906                 }
 907
 908                 // advance to next time and position
 909                 len -= dec;
 910                 VectorMA (pos, dec, vec, pos);
 911         }
 912         ent->persistent.trail_time = len;
 913 }
 914
 915 void CL_RocketTrail2 (vec3_t start, vec3_t end, int color, entity_t *ent)
 916 {
 917         vec3_t          vec, pos;
 918         int                     len;
 919         if (!cl_particles.integer) return;
 920         if (!cl_particles_smoke.integer) return;
 921
 922         VectorCopy(start, pos);
 923         VectorSubtract (end, start, vec);
 924         len = (int) (VectorNormalizeLength (vec) * (1.0f / 3.0f));
 925         VectorScale(vec, 3, vec);
 926         color = particlepalette[color];
 927         while (len--)
 928         {
 929                 particle(pt_smoke, PARTICLE_BILLBOARD, color, color, tex_particle, false, false, 5, 5, 128, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
 930                 VectorAdd (pos, vec, pos);
 931         }
 932 }
 933
 934
 935 /*
 936 ===============
 937 CL_MoveParticles
 938 ===============
 939 */
 940 void CL_MoveParticles (void)
 941 {
 942         particle_t *p;
 943         //renderparticle_t *r, *rend;
 944         int i, activeparticles, maxparticle, j, a, pressureused = false, content;
 945         float gravity, dvel, frametime, f, dist, normal[3], v[3], org[3];
 946
 947         // LordHavoc: early out condition
 948         if (!cl_numparticles)
 949         {
 950                 //r_refdef.numparticles = 0;
 951                 return;
 952         }
 953
 954         frametime = cl.time - cl.oldtime;
 955         if (!frametime)
 956                 return; // if absolutely still, don't update particles
 957         gravity = frametime * sv_gravity.value;
 958         dvel = 1+4*frametime;
 959
 960         activeparticles = 0;
 961         maxparticle = -1;
 962         j = 0;
 963         for (i = 0, p = particles/*, r = r_refdef.particles, rend = r + cl_maxparticles*/;i < cl_numparticles;i++, p++)
 964         {
 965                 if (p->die < cl.time)
 966                 {
 967                         freeparticles[j++] = p;
 968                         continue;
 969                 }
 970
 971                 content = 0;
 972                 VectorCopy(p->org, p->oldorg);
 973                 VectorMA(p->org, frametime, p->vel, p->org);
 974                 VectorCopy(p->org, org);
 975                 if (p->bounce)
 976                 {
 977                         if (TraceLine(p->oldorg, p->org, v, normal, 0, true) < 1)
 978                         {
 979                                 VectorCopy(v, p->org);
 980                                 if (p->bounce < 0)
 981                                 {
 982                                         // assume it's blood (lame, but...)
 983                                         R_Stain(v, 64, 32, 16, 16, p->alpha * p->scalex * (1.0f / 100.0f), 192, 48, 48, p->alpha * p->scalex * (1.0f / 100.0f));
 984                                         p->die = -1;
 985                                         freeparticles[j++] = p;
 986                                         continue;
 987                                 }
 988                                 else
 989                                 {
 990                                         dist = DotProduct(p->vel, normal) * -p->bounce;
 991                                         VectorMA(p->vel, dist, normal, p->vel);
 992                                         if (DotProduct(p->vel, p->vel) < 0.03)
 993                                                 VectorClear(p->vel);
 994                                 }
 995                         }
 996                 }
 997                 if (p->friction)
 998                 {
 999                         f = p->friction * frametime;
1000                         if (!content)
1001                                 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1002                         if (content != CONTENTS_EMPTY)
1003                                 f *= 4;
1004                         f = 1.0f - f;
1005                         VectorScale(p->vel, f, p->vel);
1006                 }
1007
1008                 switch (p->type)
1009                 {
1010                 case pt_static:
1011                         break;
1012
1013                         // LordHavoc: drop-through because of shared code
1014                 case pt_blob:
1015                         p->vel[2] *= dvel;
1016                 case pt_blob2:
1017                         p->vel[0] *= dvel;
1018                         p->vel[1] *= dvel;
1019                         p->alpha -= frametime * 256;
1020                         if (p->alpha < 1)
1021                                 p->die = -1;
1022                         break;
1023
1024                 case pt_grav:
1025                         p->vel[2] -= gravity;
1026                         break;
1027                 case pt_lavasplash:
1028                         p->vel[2] -= gravity * 0.05;
1029                         p->alpha -= frametime * 192;
1030                         if (p->alpha < 1)
1031                                 p->die = -1;
1032                         break;
1033                 case pt_snow:
1034                         if (cl.time > p->time2)
1035                         {
1036                                 p->time2 = cl.time + (rand() & 3) * 0.1;
1037                                 p->vel[0] = (rand()&63)-32 + p->vel2[0];
1038                                 p->vel[1] = (rand()&63)-32 + p->vel2[1];
1039                                 p->vel[2] = (rand()&63)-32 + p->vel2[2];
1040                         }
1041                         if (!content)
1042                                 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1043                         a = content;
1044                         if (a != CONTENTS_EMPTY && a != CONTENTS_SKY)
1045                         {
1046                                 p->die = -1;
1047                                 /*
1048                                 if (a == CONTENTS_SOLID && Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents == CONTENTS_SOLID)
1049                                         break; // still in solid
1050                                 p->die = cl.time + 1000;
1051                                 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1052                                 switch (a)
1053                                 {
1054                                 case CONTENTS_LAVA:
1055                                 case CONTENTS_SLIME:
1056                                         p->tex = tex_smoke[rand()&7];
1057                                         p->orientation = PARTICLE_BILLBOARD;
1058                                         p->type = pt_steam;
1059                                         p->alpha = 96;
1060                                         p->scalex = 5;
1061                                         p->scaley = 5;
1062                                         p->vel[2] = 96;
1063                                         break;
1064                                 case CONTENTS_WATER:
1065                                         p->tex = tex_smoke[rand()&7];
1066                                         p->orientation = PARTICLE_BILLBOARD;
1067                                         p->type = pt_splash;
1068                                         p->alpha = 96;
1069                                         p->scalex = 5;
1070                                         p->scaley = 5;
1071                                         p->vel[2] = 96;
1072                                         break;
1073                                 default: // CONTENTS_SOLID and any others
1074                                         TraceLine(p->oldorg, p->org, v, normal, 0, true);
1075                                         VectorCopy(v, p->org);
1076                                         p->tex = tex_smoke[rand()&7];
1077                                         p->orientation = PARTICLE_BILLBOARD;
1078                                         p->type = pt_fade;
1079                                         p->time2 = 384.0f;
1080                                         p->scalex = 5;
1081                                         p->scaley = 5;
1082                                         VectorClear(p->vel);
1083                                         break;
1084                                 }
1085                                 */
1086                         }
1087                         break;
1088                 case pt_blood:
1089                         p->friction = 1;
1090                         if (!content)
1091                                 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1092                         a = content;
1093                         if (a != CONTENTS_EMPTY)
1094                         {
1095                                 if (a == CONTENTS_WATER || a == CONTENTS_SLIME)
1096                                 {
1097                                         //p->friction = 5;
1098                                         p->scalex += frametime * (cl_particles_blood_size_min.value + cl_particles_blood_size_max.value);
1099                                         p->scaley += frametime * (cl_particles_blood_size_min.value + cl_particles_blood_size_max.value);
1100                                         p->alpha -= frametime * max(cl_particles_blood_alpha.value, 0.01f) * 128.0f;
1101                                         //p->vel[2] += gravity * 0.25f;
1102                                         if (p->alpha < 1)
1103                                                 p->die = -1;
1104                                 }
1105                                 else
1106                                         p->die = -1;
1107                         }
1108                         else
1109                                 p->vel[2] -= gravity;
1110                         break;
1111                 case pt_spark:
1112                         p->alpha -= frametime * p->time2;
1113                         p->vel[2] -= gravity;
1114                         if (p->alpha < 1)
1115                                 p->die = -1;
1116                         else
1117                         {
1118                                 if (!content)
1119                                         content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1120                                 if (content != CONTENTS_EMPTY)
1121                                         p->die = -1;
1122                         }
1123                         break;
1124                 case pt_explosionsplash:
1125                         if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents == CONTENTS_EMPTY)
1126                                 p->vel[2] -= gravity;
1127                         else
1128                                 p->alpha = 0;
1129                         p->scalex += frametime * 64.0f;
1130                         p->scaley += frametime * 64.0f;
1131                         p->alpha -= frametime * 1024.0f;
1132                         if (p->alpha < 1)
1133                                 p->die = -1;
1134                         break;
1135                 case pt_fade:
1136                         p->alpha -= frametime * p->time2;
1137                         if (p->alpha < 1)
1138                                 p->die = -1;
1139                         break;
1140                 case pt_bubble:
1141                         if (!content)
1142                                 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1143                         if (content != CONTENTS_WATER && content != CONTENTS_SLIME)
1144                         {
1145                                 p->die = -1;
1146                                 break;
1147                                 /*
1148                                 p->tex = tex_smoke[rand()&7];
1149                                 p->orientation = PARTICLE_BILLBOARD;
1150                                 p->type = pt_splashpuff;
1151                                 p->scalex = 4;
1152                                 p->scaley = 4;
1153                                 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1154                                 break;
1155                                 */
1156                         }
1157                         p->vel[0] *= (1 - (frametime * 0.0625));
1158                         p->vel[1] *= (1 - (frametime * 0.0625));
1159                         p->vel[2] = (p->vel[2] + gravity * 0.25) * (1 - (frametime * 0.0625));
1160                         if (cl.time > p->time2)
1161                         {
1162                                 p->time2 = cl.time + lhrandom(0, 0.5);
1163                                 p->vel[0] += lhrandom(-32,32);
1164                                 p->vel[1] += lhrandom(-32,32);
1165                                 p->vel[2] += lhrandom(-32,32);
1166                         }
1167                         p->alpha -= frametime * 256;
1168                         if (p->alpha < 1)
1169                                 p->die = -1;
1170                         break;
1171                 case pt_bulletsmoke:
1172                         p->scalex += frametime * 16;
1173                         p->scaley += frametime * 16;
1174                         p->alpha -= frametime * 1024;
1175                         p->vel[2] += gravity * 0.2;
1176                         if (p->alpha < 1)
1177                                 p->die = -1;
1178                         break;
1179                 case pt_smoke:
1180                         p->scalex += frametime * 16;
1181                         p->scaley += frametime * 16;
1182                         p->alpha -= frametime * 320;
1183                         //p->vel[2] += gravity * 0.2;
1184                         if (p->alpha < 1)
1185                                 p->die = -1;
1186                         break;
1187                 case pt_steam:
1188                         p->scalex += frametime * 48;
1189                         p->scaley += frametime * 48;
1190                         p->alpha -= frametime * 512;
1191                         p->vel[2] += gravity * 0.05;
1192                         if (p->alpha < 1)
1193                                 p->die = -1;
1194                         break;
1195                 case pt_splashpuff:
1196                         p->alpha -= frametime * 1024;
1197                         if (p->alpha < 1)
1198                                 p->die = -1;
1199                         break;
1200                 case pt_rain:
1201                         if (!content)
1202                                 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1203                         a = content;
1204                         if (a != CONTENTS_EMPTY && a != CONTENTS_SKY)
1205                                 p->die = -1;
1206                         /*
1207                         f = 0;
1208                         b = Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents;
1209                         VectorCopy(p->oldorg, o);
1210                         while (f < 1)
1211                         {
1212                                 a = b;
1213                                 f = TraceLine(o, p->org, v, normal, a, true);
1214                                 b = traceline_endcontents;
1215                                 if (f < 1 && b != CONTENTS_EMPTY && b != CONTENTS_SKY)
1216                                 {
1217                                         #if 1
1218                                         p->die = -1;
1219                                         #else
1220                                         p->die = cl.time + 1000;
1221                                         p->vel[0] = p->vel[1] = p->vel[2] = 0;
1222                                         VectorCopy(v, p->org);
1223                                         switch (b)
1224                                         {
1225                                         case CONTENTS_LAVA:
1226                                         case CONTENTS_SLIME:
1227                                                 p->tex = tex_smoke[rand()&7];
1228                                                 p->orientation = PARTICLE_BILLBOARD;
1229                                                 p->type = pt_steam;
1230                                                 p->scalex = 3;
1231                                                 p->scaley = 3;
1232                                                 p->vel[2] = 96;
1233                                                 break;
1234                                         default: // water, solid, and anything else
1235                                                 p->tex = tex_rainsplash[0];
1236                                                 p->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
1237                                                 p->time2 = 0;
1238                                                 VectorCopy(normal, p->vel2);
1239                                         //      VectorAdd(p->org, normal, p->org);
1240                                                 p->type = pt_raindropsplash;
1241                                                 p->scalex = 8;
1242                                                 p->scaley = 8;
1243                                                 break;
1244                                         }
1245                                         #endif
1246                                         break;
1247                                 }
1248                         }
1249                         */
1250                         break;
1251                         /*
1252                 case pt_raindropsplash:
1253                         p->time2 += frametime * 64.0f;
1254                         if (p->time2 >= 16.0f)
1255                         {
1256                                 p->die = -1;
1257                                 break;
1258                         }
1259                         p->tex = tex_rainsplash[(int) p->time2];
1260                         p->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
1261                         break;
1262                         */
1263                 case pt_flame:
1264                         p->alpha -= frametime * 384;
1265                         p->vel[2] += gravity;
1266                         if (p->alpha < 16)
1267                                 p->die = -1;
1268                         break;
1269                 case pt_oneframe:
1270                         if (p->time2)
1271                                 p->die = -1;
1272                         p->time2 = 1;
1273                         break;
1274                 case pt_stardust:
1275                         p->alpha -= frametime * 128;
1276                         p->vel[2] -= gravity;
1277                         if (p->alpha < 16)
1278                                 p->die = -1;
1279                         break;
1280                 default:
1281                         printf("unknown particle type %i\n", p->type);
1282                         p->die = -1;
1283                         break;
1284                 }
1285
1286                 // LordHavoc: immediate removal of unnecessary particles (must be done to ensure compactor below operates properly in all cases)
1287                 if (p->die < cl.time)
1288                         freeparticles[j++] = p;
1289                 else
1290                 {
1291                         maxparticle = i;
1292                         activeparticles++;
1293                         if (p->pressure)
1294                                 pressureused = true;
1295
1296                         /*
1297                         // build renderparticle for renderer to use
1298                         r->orientation = p->orientation;
1299                         r->additive = p->additive;
1300                         r->dir[0] = p->vel2[0];
1301                         r->dir[1] = p->vel2[1];
1302                         r->dir[2] = p->vel2[2];
1303                         r->org[0] = p->org[0];
1304                         r->org[1] = p->org[1];
1305                         r->org[2] = p->org[2];
1306                         r->tex = p->tex;
1307                         r->scalex = p->scalex * cl_particles_size.value;
1308                         r->scaley = p->scaley * cl_particles_size.value;
1309                         r->dynlight = p->dynlight;
1310                         r->color[0] = p->color[0] * (1.0f / 255.0f);
1311                         r->color[1] = p->color[1] * (1.0f / 255.0f);
1312                         r->color[2] = p->color[2] * (1.0f / 255.0f);
1313                         r->color[3] = p->alpha * (1.0f / 255.0f);
1314                         r++;
1315                         */
1316                 }
1317         }
1318         //r_refdef.numparticles = r - r_refdef.particles;
1319         // fill in gaps to compact the array
1320         i = 0;
1321         while (maxparticle >= activeparticles)
1322         {
1323                 *freeparticles[i++] = particles[maxparticle--];
1324                 while (maxparticle >= activeparticles && particles[maxparticle].die < cl.time)
1325                         maxparticle--;
1326         }
1327         cl_numparticles = activeparticles;
1328
1329         if (pressureused)
1330         {
1331                 activeparticles = 0;
1332                 for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1333                         if (p->pressure)
1334                                 freeparticles[activeparticles++] = p;
1335
1336                 if (activeparticles)
1337                 {
1338                         for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1339                         {
1340                                 for (j = 0;j < activeparticles;j++)
1341                                 {
1342                                         if (freeparticles[j] != p)
1343                                         {
1344                                                 float dist, diff[3];
1345                                                 VectorSubtract(p->org, freeparticles[j]->org, diff);
1346                                                 dist = DotProduct(diff, diff);
1347                                                 if (dist < 4096 && dist >= 1)
1348                                                 {
1349                                                         dist = freeparticles[j]->scalex * 4.0f * frametime / sqrt(dist);
1350                                                         VectorMA(p->vel, dist, diff, p->vel);
1351                                                         //dist = freeparticles[j]->scalex * 4.0f * frametime / dist;
1352                                                         //VectorMA(p->vel, dist, freeparticles[j]->vel, p->vel);
1353                                                 }
1354                                         }
1355                                 }
1356                         }
1357                 }
1358         }
1359 }
1360
1361 static rtexturepool_t *particletexturepool;
1362
1363 static rtexture_t *particlefonttexture;
1364 // [0] is normal, [1] is fog, they may be the same
1365 static particletexture_t particletexture[MAX_PARTICLETEXTURES][2];
1366
1367 static cvar_t r_drawparticles = {0, "r_drawparticles", "1"};
1368 static cvar_t r_particles_lighting = {0, "r_particles_lighting", "1"};
1369
1370 static qbyte shadebubble(float dx, float dy, vec3_t light)
1371 {
1372         float   dz, f, dot;
1373         vec3_t  normal;
1374         dz = 1 - (dx*dx+dy*dy);
1375         if (dz > 0) // it does hit the sphere
1376         {
1377                 f = 0;
1378                 // back side
1379                 normal[0] = dx;normal[1] = dy;normal[2] = dz;
1380                 VectorNormalize(normal);
1381                 dot = DotProduct(normal, light);
1382                 if (dot > 0.5) // interior reflection
1383                         f += ((dot *  2) - 1);
1384                 else if (dot < -0.5) // exterior reflection
1385                         f += ((dot * -2) - 1);
1386                 // front side
1387                 normal[0] = dx;normal[1] = dy;normal[2] = -dz;
1388                 VectorNormalize(normal);
1389                 dot = DotProduct(normal, light);
1390                 if (dot > 0.5) // interior reflection
1391                         f += ((dot *  2) - 1);
1392                 else if (dot < -0.5) // exterior reflection
1393                         f += ((dot * -2) - 1);
1394                 f *= 128;
1395                 f += 16; // just to give it a haze so you can see the outline
1396                 f = bound(0, f, 255);
1397                 return (qbyte) f;
1398         }
1399         else
1400                 return 0;
1401 }
1402
1403 static void setuptex(int cltexnum, int fog, int rtexnum, qbyte *data, qbyte *particletexturedata)
1404 {
1405         int basex, basey, y;
1406         basex = ((rtexnum >> 0) & 7) * 32;
1407         basey = ((rtexnum >> 3) & 7) * 32;
1408         particletexture[cltexnum][fog].s1 = (basex + 1) / 256.0f;
1409         particletexture[cltexnum][fog].t1 = (basey + 1) / 256.0f;
1410         particletexture[cltexnum][fog].s2 = (basex + 31) / 256.0f;
1411         particletexture[cltexnum][fog].t2 = (basey + 31) / 256.0f;
1412         for (y = 0;y < 32;y++)
1413                 memcpy(particletexturedata + ((basey + y) * 256 + basex) * 4, data + y * 32 * 4, 32 * 4);
1414 }
1415
1416 static void R_InitParticleTexture (void)
1417 {
1418         int             x,y,d,i,m;
1419         float   dx, dy, radius, f, f2;
1420         qbyte   data[32][32][4], noise1[64][64], noise2[64][64];
1421         vec3_t  light;
1422         qbyte   particletexturedata[256*256*4];
1423
1424         memset(particletexturedata, 255, sizeof(particletexturedata));
1425
1426         // the particletexture[][] array numbers must match the cl_part.c textures
1427         // smoke/blood
1428         for (i = 0;i < 8;i++)
1429         {
1430                 do
1431                 {
1432                         fractalnoise(&noise1[0][0], 64, 4);
1433                         fractalnoise(&noise2[0][0], 64, 8);
1434                         m = 0;
1435                         for (y = 0;y < 32;y++)
1436                         {
1437                                 dy = y - 16;
1438                                 for (x = 0;x < 32;x++)
1439                                 {
1440                                         data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1441                                         dx = x - 16;
1442                                         d = (noise2[y][x] - 128) * 3 + 192;
1443                                         if (d > 0)
1444                                                 d = (d * (256 - (int) (dx*dx+dy*dy))) >> 8;
1445                                         d = (d * noise1[y][x]) >> 7;
1446                                         d = bound(0, d, 255);
1447                                         data[y][x][3] = (qbyte) d;
1448                                         if (m < d)
1449                                                 m = d;
1450                                 }
1451                         }
1452                 }
1453                 while (m < 224);
1454
1455                 setuptex(i + 0, 0, i + 0, &data[0][0][0], particletexturedata);
1456                 setuptex(i + 0, 1, i + 0, &data[0][0][0], particletexturedata);
1457         }
1458         /*
1459         for (i = 0;i < 8;i++)
1460         {
1461                 do
1462                 {
1463                         fractalnoise(&noise1[0][0], 64, 4);
1464                         fractalnoise(&noise2[0][0], 64, 8);
1465                         m = 0;
1466                         for (y = 0;y < 32;y++)
1467                         {
1468                                 dy = y - 16;
1469                                 for (x = 0;x < 32;x++)
1470                                 {
1471                                         d = (noise1[y][x] - 128) * 2 + 128;
1472                                         d = bound(0, d, 255);
1473                                         data[y][x][0] = data[y][x][1] = data[y][x][2] = d;
1474                                         dx = x - 16;
1475                                         d = (noise2[y][x] - 128) * 3 + 192;
1476                                         if (d > 0)
1477                                                 d = (d * (256 - (int) (dx*dx+dy*dy))) >> 8;
1478                                         d = bound(0, d, 255);
1479                                         data[y][x][3] = (qbyte) d;
1480                                         if (m < d)
1481                                                 m = d;
1482                                 }
1483                         }
1484                 }
1485                 while (m < 224);
1486
1487                 setuptex(i + 0, 0, i + 0, &data[0][0][0], particletexturedata);
1488                 for (y = 0;y < 32;y++)
1489                         for (x = 0;x < 32;x++)
1490                                 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1491                 setuptex(i + 0, 1, i + 8, &data[0][0][0], particletexturedata);
1492         }
1493         */
1494
1495         // rain splash
1496         for (i = 0;i < 16;i++)
1497         {
1498                 radius = i * 3.0f / 16.0f;
1499                 f2 = 255.0f * ((15.0f - i) / 15.0f);
1500                 for (y = 0;y < 32;y++)
1501                 {
1502                         dy = (y - 16) * 0.25f;
1503                         for (x = 0;x < 32;x++)
1504                         {
1505                                 dx = (x - 16) * 0.25f;
1506                                 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1507                                 f = (1.0 - fabs(radius - sqrt(dx*dx+dy*dy))) * f2;
1508                                 f = bound(0.0f, f, 255.0f);
1509                                 data[y][x][3] = (int) f;
1510                         }
1511                 }
1512                 setuptex(i + 8, 0, i + 16, &data[0][0][0], particletexturedata);
1513                 setuptex(i + 8, 1, i + 16, &data[0][0][0], particletexturedata);
1514         }
1515
1516         // normal particle
1517         for (y = 0;y < 32;y++)
1518         {
1519                 dy = y - 16;
1520                 for (x = 0;x < 32;x++)
1521                 {
1522                         data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1523                         dx = x - 16;
1524                         d = (256 - (dx*dx+dy*dy));
1525                         d = bound(0, d, 255);
1526                         data[y][x][3] = (qbyte) d;
1527                 }
1528         }
1529         setuptex(24, 0, 32, &data[0][0][0], particletexturedata);
1530         setuptex(24, 1, 32, &data[0][0][0], particletexturedata);
1531
1532         // rain
1533         light[0] = 1;light[1] = 1;light[2] = 1;
1534         VectorNormalize(light);
1535         for (y = 0;y < 32;y++)
1536         {
1537                 for (x = 0;x < 32;x++)
1538                 {
1539                         data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1540                         data[y][x][3] = shadebubble((x - 16) * (1.0 / 8.0), y < 24 ? (y - 24) * (1.0 / 24.0) : (y - 24) * (1.0 / 8.0), light);
1541                 }
1542         }
1543         setuptex(25, 0, 33, &data[0][0][0], particletexturedata);
1544         setuptex(25, 1, 33, &data[0][0][0], particletexturedata);
1545
1546         // bubble
1547         light[0] = 1;light[1] = 1;light[2] = 1;
1548         VectorNormalize(light);
1549         for (y = 0;y < 32;y++)
1550         {
1551                 for (x = 0;x < 32;x++)
1552                 {
1553                         data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1554                         data[y][x][3] = shadebubble((x - 16) * (1.0 / 16.0), (y - 16) * (1.0 / 16.0), light);
1555                 }
1556         }
1557         setuptex(26, 0, 34, &data[0][0][0], particletexturedata);
1558         setuptex(26, 1, 34, &data[0][0][0], particletexturedata);
1559
1560         // rocket flare
1561         /*
1562         for (y = 0;y < 32;y++)
1563         {
1564                 dy = y - 16;
1565                 for (x = 0;x < 32;x++)
1566                 {
1567                         dx = x - 16;
1568                         d = (2048.0f / (dx*dx+dy*dy+1)) - 8.0f;
1569                         data[y][x][0] = bound(0, d * 1.0f, 255);
1570                         data[y][x][1] = bound(0, d * 0.8f, 255);
1571                         data[y][x][2] = bound(0, d * 0.5f, 255);
1572                         data[y][x][3] = bound(0, d * 1.0f, 255);
1573                 }
1574         }
1575         setuptex(27, 0, 35, &data[0][0][0], particletexturedata);
1576         for (y = 0;y < 32;y++)
1577                 for (x = 0;x < 32;x++)
1578                         data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1579         setuptex(28, 1, 36, &data[0][0][0], particletexturedata);
1580         */
1581
1582         particlefonttexture = R_LoadTexture (particletexturepool, "particlefont", 256, 256, particletexturedata, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE);
1583 }
1584
1585 static void r_part_start(void)
1586 {
1587         particletexturepool = R_AllocTexturePool();
1588         R_InitParticleTexture ();
1589 }
1590
1591 static void r_part_shutdown(void)
1592 {
1593         R_FreeTexturePool(&particletexturepool);
1594 }
1595
1596 static void r_part_newmap(void)
1597 {
1598 }
1599
1600 void R_Particles_Init (void)
1601 {
1602         Cvar_RegisterVariable(&r_drawparticles);
1603         Cvar_RegisterVariable(&r_particles_lighting);
1604         R_RegisterModule("R_Particles", r_part_start, r_part_shutdown, r_part_newmap);
1605 }
1606
1607 int partindexarray[6] = {0, 1, 2, 0, 2, 3};
1608
1609 void R_DrawParticles (void)
1610 {
1611         //renderparticle_t *r;
1612         int i, lighting, dynlight, additive, texnum, orientation;
1613         float minparticledist, org[3], uprightangles[3], up2[3], right2[3], v[3], right[3], up[3], tvxyz[4][4], tvst[4][2], fog, ifog, fogvec[3];
1614         mleaf_t *leaf;
1615         particletexture_t *tex, *texfog;
1616         rmeshinfo_t m;
1617         particle_t *p;
1618
1619         // LordHavoc: early out conditions
1620         //if ((!r_refdef.numparticles) || (!r_drawparticles.integer))
1621         if ((!cl_numparticles) || (!r_drawparticles.integer))
1622                 return;
1623
1624         lighting = r_particles_lighting.integer;
1625         if (!r_dynamic.integer)
1626                 lighting = 0;
1627
1628         c_particles += cl_numparticles; //r_refdef.numparticles;
1629
1630         uprightangles[0] = 0;
1631         uprightangles[1] = r_refdef.viewangles[1];
1632         uprightangles[2] = 0;
1633         AngleVectors (uprightangles, NULL, right2, up2);
1634
1635         minparticledist = DotProduct(r_origin, vpn) + 16.0f;
1636
1637         // LordHavoc: this meshinfo must match up with R_Mesh_DrawDecal
1638         // LordHavoc: the commented out lines are hardwired behavior in R_Mesh_DrawDecal
1639         memset(&m, 0, sizeof(m));
1640         m.transparent = true;
1641         m.blendfunc1 = GL_SRC_ALPHA;
1642         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1643         m.numtriangles = 2;
1644         m.index = partindexarray;
1645         m.numverts = 4;
1646         m.vertex = &tvxyz[0][0];
1647         m.vertexstep = sizeof(float[4]);
1648         m.tex[0] = R_GetTexture(particlefonttexture);
1649         m.texcoords[0] = &tvst[0][0];
1650         m.texcoordstep[0] = sizeof(float[2]);
1651
1652         for (i = 0/*, r = r_refdef.particles*/, p = particles;i < /*r_refdef.numparticles*/cl_numparticles;i++, p++)
1653         {
1654                 // LordHavoc: only render if not too close
1655                 if (DotProduct(p->org, vpn) < minparticledist)
1656                         continue;
1657
1658                 // LordHavoc: check if it's in a visible leaf
1659                 leaf = Mod_PointInLeaf(p->org, cl.worldmodel);
1660                 if (leaf->visframe != r_framecount)
1661                         continue;
1662
1663                 VectorCopy(p->org, org);
1664                 orientation = (p->flags >> P_ORIENTATION_FIRSTBIT) & ((1 << P_ORIENTATION_BITS) - 1);
1665                 texnum = (p->flags >> P_TEXNUM_FIRSTBIT) & ((1 << P_TEXNUM_BITS) - 1);
1666                 dynlight = p->flags & P_DYNLIGHT;
1667                 additive = p->flags & P_ADDITIVE;
1668                 if (orientation == PARTICLE_BILLBOARD)
1669                 {
1670                         VectorScale(vright, p->scalex, right);
1671                         VectorScale(vup, p->scaley, up);
1672                 }
1673                 else if (orientation == PARTICLE_UPRIGHT_FACING)
1674                 {
1675                         VectorScale(right2, p->scalex, right);
1676                         VectorScale(up2, p->scaley, up);
1677                 }
1678                 else if (orientation == PARTICLE_ORIENTED_DOUBLESIDED)
1679                 {
1680                         // double-sided
1681                         if (DotProduct(p->vel2, r_origin) > DotProduct(p->vel2, org))
1682                         {
1683                                 VectorNegate(p->vel2, v);
1684                                 VectorVectors(v, right, up);
1685                         }
1686                         else
1687                                 VectorVectors(p->vel2, right, up);
1688                         VectorScale(right, p->scalex, right);
1689                         VectorScale(up, p->scaley, up);
1690                 }
1691                 else
1692                         Host_Error("R_DrawParticles: unknown particle orientation %i\n", orientation);
1693
1694                 m.cr = p->color[0] * (1.0f / 255.0f);
1695                 m.cg = p->color[1] * (1.0f / 255.0f);
1696                 m.cb = p->color[2] * (1.0f / 255.0f);
1697                 m.ca = p->alpha * (1.0f / 255.0f);
1698                 if (lighting >= 1 && (dynlight || lighting >= 2))
1699                 {
1700                         R_CompleteLightPoint(v, org, true, leaf);
1701                         m.cr *= v[0];
1702                         m.cg *= v[1];
1703                         m.cb *= v[2];
1704                 }
1705
1706                 tex = &particletexture[texnum][0];
1707
1708                 tvxyz[0][0] = org[0] - right[0] - up[0];
1709                 tvxyz[0][1] = org[1] - right[1] - up[1];
1710                 tvxyz[0][2] = org[2] - right[2] - up[2];
1711                 tvxyz[1][0] = org[0] - right[0] + up[0];
1712                 tvxyz[1][1] = org[1] - right[1] + up[1];
1713                 tvxyz[1][2] = org[2] - right[2] + up[2];
1714                 tvxyz[2][0] = org[0] + right[0] + up[0];
1715                 tvxyz[2][1] = org[1] + right[1] + up[1];
1716                 tvxyz[2][2] = org[2] + right[2] + up[2];
1717                 tvxyz[3][0] = org[0] + right[0] - up[0];
1718                 tvxyz[3][1] = org[1] + right[1] - up[1];
1719                 tvxyz[3][2] = org[2] + right[2] - up[2];
1720                 tvst[0][0] = tex->s1;
1721                 tvst[0][1] = tex->t1;
1722                 tvst[1][0] = tex->s1;
1723                 tvst[1][1] = tex->t2;
1724                 tvst[2][0] = tex->s2;
1725                 tvst[2][1] = tex->t2;
1726                 tvst[3][0] = tex->s2;
1727                 tvst[3][1] = tex->t1;
1728
1729                 if (additive)
1730                 {
1731                         m.blendfunc2 = GL_ONE;
1732                         fog = 0;
1733                         if (fogenabled)
1734                         {
1735                                 texfog = &particletexture[texnum][1];
1736                                 VectorSubtract(org, r_origin, fogvec);
1737                                 ifog = 1 - exp(fogdensity/DotProduct(fogvec,fogvec));
1738                                 if (ifog < (1.0f - (1.0f / 64.0f)))
1739                                 {
1740                                         if (ifog >= (1.0f / 64.0f))
1741                                         {
1742                                                 // partially fogged, darken it
1743                                                 m.cr *= ifog;
1744                                                 m.cg *= ifog;
1745                                                 m.cb *= ifog;
1746                                                 R_Mesh_Draw(&m);
1747                                         }
1748                                 }
1749                                 else
1750                                         R_Mesh_Draw(&m);
1751                         }
1752                         else
1753                                 R_Mesh_Draw(&m);
1754                 }
1755                 else
1756                 {
1757                         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1758                         fog = 0;
1759                         if (fogenabled)
1760                         {
1761                                 texfog = &particletexture[texnum][1];
1762                                 VectorSubtract(org, r_origin, fogvec);
1763                                 fog = exp(fogdensity/DotProduct(fogvec,fogvec));
1764                                 if (fog >= (1.0f / 64.0f))
1765                                 {
1766                                         if (fog >= (1.0f - (1.0f / 64.0f)))
1767                                         {
1768                                                 // fully fogged, just use the fog texture and render as alpha
1769                                                 m.cr = fogcolor[0];
1770                                                 m.cg = fogcolor[1];
1771                                                 m.cb = fogcolor[2];
1772                                                 tvst[0][0] = texfog->s1;
1773                                                 tvst[0][1] = texfog->t1;
1774                                                 tvst[1][0] = texfog->s1;
1775                                                 tvst[1][1] = texfog->t2;
1776                                                 tvst[2][0] = texfog->s2;
1777                                                 tvst[2][1] = texfog->t2;
1778                                                 tvst[3][0] = texfog->s2;
1779                                                 tvst[3][1] = texfog->t1;
1780                                                 R_Mesh_Draw(&m);
1781                                         }
1782                                         else
1783                                         {
1784                                                 // partially fogged, darken the first pass
1785                                                 ifog = 1 - fog;
1786                                                 m.cr *= ifog;
1787                                                 m.cg *= ifog;
1788                                                 m.cb *= ifog;
1789                                                 if (tex->s1 == texfog->s1 && tex->t1 == texfog->t1)
1790                                                 {
1791                                                         // fog texture is the same as the base, just change the color
1792                                                         m.cr += fogcolor[0] * fog;
1793                                                         m.cg += fogcolor[1] * fog;
1794                                                         m.cb += fogcolor[2] * fog;
1795                                                         R_Mesh_Draw(&m);
1796                                                 }
1797                                                 else
1798                                                 {
1799                                                         // render the first pass (alpha), then do additive fog
1800                                                         R_Mesh_Draw(&m);
1801
1802                                                         m.blendfunc2 = GL_ONE;
1803                                                         m.cr = fogcolor[0] * fog;
1804                                                         m.cg = fogcolor[1] * fog;
1805                                                         m.cb = fogcolor[2] * fog;
1806                                                         tvst[0][0] = texfog->s1;
1807                                                         tvst[0][1] = texfog->t1;
1808                                                         tvst[1][0] = texfog->s1;
1809                                                         tvst[1][1] = texfog->t2;
1810                                                         tvst[2][0] = texfog->s2;
1811                                                         tvst[2][1] = texfog->t2;
1812                                                         tvst[3][0] = texfog->s2;
1813                                                         tvst[3][1] = texfog->t1;
1814                                                         R_Mesh_Draw(&m);
1815                                                 }
1816                                         }
1817                                 }
1818                                 else
1819                                         R_Mesh_Draw(&m);
1820                         }
1821                         else
1822                                 R_Mesh_Draw(&m);
1823                 }
1824         }
1825 }