r_part.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                   4096    // default max # of particles at one
  24                                                                                 //  time
  25 #define ABSOLUTE_MIN_PARTICLES  512             // no fewer than this no matter what's
  26                                                                                 //  on the command line
  27
  28 int             ramp1[8] = {0x6f, 0x6d, 0x6b, 0x69, 0x67, 0x65, 0x63, 0x61};
  29 int             ramp2[8] = {0x6f, 0x6e, 0x6d, 0x6c, 0x6b, 0x6a, 0x68, 0x66};
  30 int             ramp3[8] = {0x6d, 0x6b, 6, 5, 4, 3};
  31
  32 int             particletexture;
  33 int             smokeparticletexture[8];
  34 int             flareparticletexture;
  35 int             rainparticletexture;
  36 int             bloodcloudparticletexture;
  37 int             bubbleparticletexture;
  38
  39 particle_t      *active_particles, *free_particles;
  40
  41 particle_t      *particles;
  42 int                     r_numparticles;
  43
  44 vec3_t                  r_pright, r_pup, r_ppn;
  45
  46 cvar_t r_particles = {"r_particles", "1"};
  47 cvar_t r_dynamicparticles = {"r_dynamicparticles", "1"};
  48
  49 void fractalnoise(char *noise, int size);
  50 void fractalnoise_zeroedge(char *noise, int size);
  51
  52 void R_InitParticleTexture (void)
  53 {
  54         int             x,y,d,i;
  55         float   dx, dy, dz, f, dot;
  56         byte    data[32][32][4], noise1[32][32], noise2[32][32];
  57         vec3_t  normal, light;
  58
  59         particletexture = texture_extension_number++;
  60         glBindTexture(GL_TEXTURE_2D, particletexture);
  61
  62         for (x=0 ; x<32 ; x++)
  63         {
  64                 for (y=0 ; y<32 ; y++)
  65                 {
  66                         data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
  67                         dx = x - 16;
  68                         dy = y - 16;
  69                         d = (255 - (dx*dx+dy*dy));
  70                         if (d < 0) d = 0;
  71                         data[y][x][3] = (byte) d;
  72                 }
  73         }
  74         glTexImage2D (GL_TEXTURE_2D, 0, 4, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
  75
  76         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
  77
  78         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
  79         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  80
  81
  82         for (i = 0;i < 8;i++)
  83         {
  84                 fractalnoise(&noise1[0][0], 32);
  85                 fractalnoise(&noise2[0][0], 32);
  86                 for (y = 0;y < 32;y++)
  87                         for (x = 0;x < 32;x++)
  88                         {
  89                                 data[y][x][0] = data[y][x][1] = data[y][x][2] = (noise1[y][x] >> 1) + 128;
  90                                 dx = x - 16;
  91                                 dy = y - 16;
  92                                 d = noise2[y][x] * 4 - 512;
  93                                 if (d > 0)
  94                                 {
  95                                         if (d > 255)
  96                                                 d = 255;
  97                                         d = (d * (255 - (int) (dx*dx+dy*dy))) >> 8;
  98                                         if (d < 0) d = 0;
  99                                         if (d > 255) d = 255;
 100                                         data[y][x][3] = (byte) d;
 101                                 }
 102                                 else
 103                                         data[y][x][3] = 0;
 104                         }
 105
 106                 /*
 107                 for (x=0 ; x<34 ; x+=2)
 108                         for (y=0 ; y<34 ; y+=2)
 109                                 data[y][x][0] = data[y][x][1] = data[y][x][2] = (rand()%32)+192;
 110                 for (x=0 ; x<32 ; x+=2)
 111                         for (y=0 ; y<32 ; y+=2)
 112                         {
 113                                 data[y  ][x+1][0] = data[y  ][x+1][1] = data[y  ][x+1][2] = (int) (data[y  ][x  ][0] + data[y  ][x+2][0]) >> 1;
 114                                 data[y+1][x  ][0] = data[y+1][x  ][1] = data[y+1][x  ][2] = (int) (data[y  ][x  ][0] + data[y+2][x  ][0]) >> 1;
 115                                 data[y+1][x+1][0] = data[y+1][x+1][1] = data[y+1][x+1][2] = (int) (data[y  ][x  ][0] + data[y  ][x+2][0] + data[y+2][x  ][0] + data[y+2][x+2][0]) >> 2;
 116                         }
 117                 for (x=0 ; x<32 ; x++)
 118                 {
 119                         for (y=0 ; y<32 ; y++)
 120                         {
 121                                 //data[y][x][0] = data[y][x][1] = data[y][x][2] = (rand()%192)+32;
 122                                 dx = x - 16;
 123                                 dy = y - 16;
 124                                 d = (255 - (dx*dx+dy*dy));
 125                                 if (d < 0) d = 0;
 126                                 data[y][x][3] = (byte) d;
 127                         }
 128                 }
 129                 */
 130                 smokeparticletexture[i] = texture_extension_number++;
 131                 glBindTexture(GL_TEXTURE_2D, smokeparticletexture[i]);
 132                 glTexImage2D (GL_TEXTURE_2D, 0, 4, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
 133                 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 134                 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 135                 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 136         }
 137
 138         fractalnoise(&noise1[0][0], 32);
 139         fractalnoise(&noise2[0][0], 32);
 140         for (y = 0;y < 32;y++)
 141                 for (x = 0;x < 32;x++)
 142                 {
 143                         data[y][x][0] = data[y][x][1] = data[y][x][2] = (noise1[y][x] >> 1) + 128;
 144                         dx = x - 16;
 145                         dy = y - 16;
 146                         d = (noise2[y][x] * (255 - (dx*dx+dy*dy))) * (1.0f / 255.0f);
 147                         if (d < 0) d = 0;
 148                         if (d > 255) d = 255;
 149                         data[y][x][3] = (byte) d;
 150                 }
 151
 152         bloodcloudparticletexture = texture_extension_number++;
 153         glBindTexture(GL_TEXTURE_2D, bloodcloudparticletexture);
 154         glTexImage2D (GL_TEXTURE_2D, 0, 4, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
 155         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 156         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 157         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 158
 159         flareparticletexture = texture_extension_number++;
 160         glBindTexture(GL_TEXTURE_2D, flareparticletexture);
 161
 162         for (x=0 ; x<32 ; x++)
 163         {
 164                 for (y=0 ; y<32 ; y++)
 165                 {
 166                         data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
 167                         dx = x - 16;
 168                         dy = y - 16;
 169                         d = 2048 / (dx*dx+dy*dy+1) - 32;
 170                         d = bound(0, d, 255);
 171                         data[y][x][3] = (byte) d;
 172                 }
 173         }
 174         glTexImage2D (GL_TEXTURE_2D, 0, 4, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
 175
 176         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 177
 178         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 179         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 180
 181         rainparticletexture = texture_extension_number++;
 182         glBindTexture(GL_TEXTURE_2D, rainparticletexture);
 183
 184         for (x=0 ; x<32 ; x++)
 185         {
 186                 for (y=0 ; y<32 ; y++)
 187                 {
 188                         data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
 189                         if (y < 24) // stretch the upper half to make a raindrop
 190                         {
 191                                 dx = (x - 16)*2;
 192                                 dy = (y - 24)*2/3;
 193                                 d = (255 - (dx*dx+dy*dy))/2;
 194                         }
 195                         else
 196                         {
 197                                 dx = (x - 16)*2;
 198                                 dy = (y - 24)*2;
 199                                 d = (255 - (dx*dx+dy*dy))/2;
 200                         }
 201                         if (d < 0) d = 0;
 202                         data[y][x][3] = (byte) d;
 203                 }
 204         }
 205         glTexImage2D (GL_TEXTURE_2D, 0, 4, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
 206
 207         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 208
 209         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 210         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 211
 212         bubbleparticletexture = texture_extension_number++;
 213         glBindTexture(GL_TEXTURE_2D, bubbleparticletexture);
 214
 215         light[0] = 1;light[1] = 1;light[2] = 1;
 216         VectorNormalize(light);
 217         for (x=0 ; x<32 ; x++)
 218         {
 219                 for (y=0 ; y<32 ; y++)
 220                 {
 221                         data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
 222                         dx = x * (1.0 / 16.0) - 1.0;
 223                         dy = y * (1.0 / 16.0) - 1.0;
 224                         if (dx*dx+dy*dy < 1) // it does hit the sphere
 225                         {
 226                                 dz = 1 - (dx*dx+dy*dy);
 227                                 f = 0;
 228                                 // back side
 229                                 normal[0] = dx;normal[1] = dy;normal[2] = dz;
 230                                 VectorNormalize(normal);
 231                                 dot = DotProduct(normal, light);
 232                                 if (dot > 0.5) // interior reflection
 233                                         f += ((dot *  2) - 1);
 234                                 else if (dot < -0.5) // exterior reflection
 235                                         f += ((dot * -2) - 1);
 236                                 // front side
 237                                 normal[0] = dx;normal[1] = dy;normal[2] = -dz;
 238                                 VectorNormalize(normal);
 239                                 dot = DotProduct(normal, light);
 240                                 if (dot > 0.5) // interior reflection
 241                                         f += ((dot *  2) - 1);
 242                                 else if (dot < -0.5) // exterior reflection
 243                                         f += ((dot * -2) - 1);
 244                                 f *= 64;
 245                                 f = bound(0, f, 255);
 246                                 data[y][x][3] = (byte) f;
 247                         }
 248                         else
 249                                 data[y][x][3] = 0;
 250                 }
 251         }
 252         glTexImage2D (GL_TEXTURE_2D, 0, 4, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
 253
 254         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 255
 256         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 257         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 258 }
 259
 260 /*
 261 ===============
 262 R_InitParticles
 263 ===============
 264 */
 265 void R_InitParticles (void)
 266 {
 267         int             i;
 268
 269         i = COM_CheckParm ("-particles");
 270
 271         if (i)
 272         {
 273                 r_numparticles = (int)(atoi(com_argv[i+1]));
 274                 if (r_numparticles < ABSOLUTE_MIN_PARTICLES)
 275                         r_numparticles = ABSOLUTE_MIN_PARTICLES;
 276         }
 277         else
 278         {
 279                 r_numparticles = MAX_PARTICLES;
 280         }
 281
 282         particles = (particle_t *) Hunk_AllocName (r_numparticles * sizeof(particle_t), "particles");
 283
 284         Cvar_RegisterVariable (&r_particles);
 285         Cvar_RegisterVariable (&r_dynamicparticles);
 286         R_InitParticleTexture ();
 287 }
 288
 289 /*
 290 ===============
 291 R_EntityParticles
 292 ===============
 293 */
 294
 295 #define NUMVERTEXNORMALS        162
 296 extern  float   r_avertexnormals[NUMVERTEXNORMALS][3];
 297 vec3_t  avelocities[NUMVERTEXNORMALS];
 298 float   beamlength = 16;
 299 vec3_t  avelocity = {23, 7, 3};
 300 float   partstep = 0.01;
 301 float   timescale = 0.01;
 302
 303 void R_EntityParticles (entity_t *ent)
 304 {
 305         int                     count;
 306         int                     i;
 307         particle_t      *p;
 308         float           angle;
 309         float           sr, sp, sy, cr, cp, cy;
 310         vec3_t          forward;
 311         float           dist;
 312         if (!r_particles.value) return; // LordHavoc: particles are optional
 313
 314         dist = 64;
 315         count = 50;
 316
 317 if (!avelocities[0][0])
 318 {
 319 for (i=0 ; i<NUMVERTEXNORMALS*3 ; i++)
 320 avelocities[0][i] = (rand()&255) * 0.01;
 321 }
 322
 323
 324         for (i=0 ; i<NUMVERTEXNORMALS ; i++)
 325         {
 326                 angle = cl.time * avelocities[i][0];
 327                 sy = sin(angle);
 328                 cy = cos(angle);
 329                 angle = cl.time * avelocities[i][1];
 330                 sp = sin(angle);
 331                 cp = cos(angle);
 332                 angle = cl.time * avelocities[i][2];
 333                 sr = sin(angle);
 334                 cr = cos(angle);
 335
 336                 forward[0] = cp*cy;
 337                 forward[1] = cp*sy;
 338                 forward[2] = -sp;
 339
 340                 if (!free_particles)
 341                         return;
 342                 p = free_particles;
 343                 free_particles = p->next;
 344                 p->next = active_particles;
 345                 active_particles = p;
 346
 347                 p->texnum = flareparticletexture;
 348                 p->scale = 2;
 349                 p->alpha = 255;
 350                 p->die = cl.time + 0.01;
 351                 p->color = 0x6f;
 352                 p->type = pt_explode;
 353
 354                 p->org[0] = ent->origin[0] + r_avertexnormals[i][0]*dist + forward[0]*beamlength;
 355                 p->org[1] = ent->origin[1] + r_avertexnormals[i][1]*dist + forward[1]*beamlength;
 356                 p->org[2] = ent->origin[2] + r_avertexnormals[i][2]*dist + forward[2]*beamlength;
 357         }
 358 }
 359
 360
 361 /*
 362 ===============
 363 R_ClearParticles
 364 ===============
 365 */
 366 void R_ClearParticles (void)
 367 {
 368         int             i;
 369
 370         free_particles = &particles[0];
 371         active_particles = NULL;
 372
 373         for (i=0 ;i<r_numparticles ; i++)
 374                 particles[i].next = &particles[i+1];
 375         particles[r_numparticles-1].next = NULL;
 376 }
 377
 378
 379 void R_ReadPointFile_f (void)
 380 {
 381         FILE    *f;
 382         vec3_t  org;
 383         int             r;
 384         int             c;
 385         particle_t      *p;
 386         char    name[MAX_OSPATH];
 387
 388         sprintf (name,"maps/%s.pts", sv.name);
 389
 390         COM_FOpenFile (name, &f, false);
 391         if (!f)
 392         {
 393                 Con_Printf ("couldn't open %s\n", name);
 394                 return;
 395         }
 396
 397         Con_Printf ("Reading %s...\n", name);
 398         c = 0;
 399         for ( ;; )
 400         {
 401                 r = fscanf (f,"%f %f %f\n", &org[0], &org[1], &org[2]);
 402                 if (r != 3)
 403                         break;
 404                 c++;
 405
 406                 if (!free_particles)
 407                 {
 408                         Con_Printf ("Not enough free particles\n");
 409                         break;
 410                 }
 411                 p = free_particles;
 412                 free_particles = p->next;
 413                 p->next = active_particles;
 414                 active_particles = p;
 415
 416                 p->texnum = particletexture;
 417                 p->scale = 2;
 418                 p->alpha = 255;
 419                 p->die = 99999;
 420                 p->color = (-c)&15;
 421                 p->type = pt_static;
 422                 VectorCopy (vec3_origin, p->vel);
 423                 VectorCopy (org, p->org);
 424         }
 425
 426         fclose (f);
 427         Con_Printf ("%i points read\n", c);
 428 }
 429
 430 /*
 431 ===============
 432 R_ParseParticleEffect
 433
 434 Parse an effect out of the server message
 435 ===============
 436 */
 437 void R_ParseParticleEffect (void)
 438 {
 439         vec3_t          org, dir;
 440         int                     i, count, msgcount, color;
 441
 442         for (i=0 ; i<3 ; i++)
 443                 org[i] = MSG_ReadCoord ();
 444         for (i=0 ; i<3 ; i++)
 445                 dir[i] = MSG_ReadChar () * (1.0/16);
 446         msgcount = MSG_ReadByte ();
 447         color = MSG_ReadByte ();
 448
 449 if (msgcount == 255)
 450         count = 1024;
 451 else
 452         count = msgcount;
 453
 454         R_RunParticleEffect (org, dir, color, count);
 455 }
 456
 457 /*
 458 ===============
 459 R_ParticleExplosion
 460
 461 ===============
 462 */
 463 void R_ParticleExplosion (vec3_t org, int smoke)
 464 {
 465         int                     i, j;
 466         particle_t      *p;
 467         if (!r_particles.value) return; // LordHavoc: particles are optional
 468
 469         for (i=0 ; i<1024 ; i++)
 470         {
 471                 if (!free_particles)
 472                         return;
 473                 p = free_particles;
 474                 free_particles = p->next;
 475                 p->next = active_particles;
 476                 active_particles = p;
 477
 478                 p->texnum = particletexture;
 479                 p->scale = lhrandom(1,3);
 480                 p->alpha = rand()&255;
 481                 p->die = cl.time + 5;
 482                 p->color = ramp1[0];
 483                 p->ramp = lhrandom(0, 4);
 484 //              if (i & 1)
 485 //                      p->type = pt_explode;
 486 //              else
 487 //                      p->type = pt_explode2;
 488                 p->color = ramp1[rand()&7];
 489                 p->type = pt_fallfadespark;
 490                 for (j=0 ; j<3 ; j++)
 491                 {
 492                         p->org[j] = org[j] + ((rand()&15)-8);
 493                         p->vel[j] = lhrandom(-192, 192);
 494                 }
 495                 p->vel[2] += 160;
 496         }
 497
 498         if (smoke)
 499         {
 500                 for (i=0 ; i<32 ; i++)
 501                 {
 502                         if (!free_particles)
 503                                 return;
 504                         p = free_particles;
 505                         free_particles = p->next;
 506                         p->next = active_particles;
 507                         active_particles = p;
 508
 509                         p->texnum = smokeparticletexture[rand()&7];
 510                         p->scale = 12;
 511                         p->alpha = 80;
 512                         p->die = cl.time + 2;
 513                         p->type = pt_smoke;
 514                         p->color = (rand()&7) + 8;
 515                         for (j=0 ; j<3 ; j++)
 516                         {
 517                                 p->org[j] = org[j] + ((rand()%96)-48);
 518                                 p->vel[j] = (rand()&63)-32;
 519                         }
 520                 }
 521         }
 522 }
 523
 524 /*
 525 ===============
 526 R_ParticleExplosion2
 527
 528 ===============
 529 */
 530 void R_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength)
 531 {
 532         int                     i, j;
 533         particle_t      *p;
 534         int                     colorMod = 0;
 535         if (!r_particles.value) return; // LordHavoc: particles are optional
 536
 537         for (i=0; i<512; i++)
 538         {
 539                 if (!free_particles)
 540                         return;
 541                 p = free_particles;
 542                 free_particles = p->next;
 543                 p->next = active_particles;
 544                 active_particles = p;
 545
 546                 p->texnum = smokeparticletexture[rand()&7];
 547                 p->scale = 1.5;
 548                 p->alpha = 255;
 549                 p->die = cl.time + 0.3;
 550                 p->color = colorStart + (colorMod % colorLength);
 551                 colorMod++;
 552
 553                 p->type = pt_blob;
 554                 for (j=0 ; j<3 ; j++)
 555                 {
 556                         p->org[j] = org[j] + ((rand()&15)-8);
 557                         p->vel[j] = lhrandom(-192, 192);
 558                 }
 559         }
 560 }
 561
 562 /*
 563 ===============
 564 R_BlobExplosion
 565
 566 ===============
 567 */
 568 void R_BlobExplosion (vec3_t org)
 569 {
 570         int                     i, j;
 571         particle_t      *p;
 572         if (!r_particles.value) return; // LordHavoc: particles are optional
 573
 574         for (i=0 ; i<1024 ; i++)
 575         {
 576                 if (!free_particles)
 577                         return;
 578                 p = free_particles;
 579                 free_particles = p->next;
 580                 p->next = active_particles;
 581                 active_particles = p;
 582
 583                 p->texnum = smokeparticletexture[rand()&7];
 584                 p->scale = 2;
 585                 p->alpha = 255;
 586                 p->die = cl.time + 1 + (rand()&8)*0.05;
 587
 588                 if (i & 1)
 589                 {
 590                         p->type = pt_blob;
 591                         p->color = 66 + rand()%6;
 592                         for (j=0 ; j<3 ; j++)
 593                         {
 594                                 p->org[j] = org[j] + ((rand()%32)-16);
 595                                 p->vel[j] = lhrandom(-128, 128);
 596                         }
 597                 }
 598                 else
 599                 {
 600                         p->type = pt_blob2;
 601                         p->color = 150 + rand()%6;
 602                         for (j=0 ; j<3 ; j++)
 603                         {
 604                                 p->org[j] = org[j] + ((rand()%32)-16);
 605                                 p->vel[j] = lhrandom(-128, 128);
 606                         }
 607                 }
 608                 p->vel[0] *= 0.25;
 609                 p->vel[1] *= 0.25;
 610         }
 611 }
 612
 613 /*
 614 ===============
 615 R_RunParticleEffect
 616
 617 ===============
 618 */
 619 void R_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count)
 620 {
 621         int                     j;
 622         particle_t      *p;
 623         if (!r_particles.value) return; // LordHavoc: particles are optional
 624
 625         if (count == 1024)
 626         {
 627                 R_ParticleExplosion(org, false);
 628                 return;
 629         }
 630         while (count)
 631         {
 632                 if (!free_particles)
 633                         return;
 634                 p = free_particles;
 635                 free_particles = p->next;
 636                 p->next = active_particles;
 637                 active_particles = p;
 638                 if (count & 7)
 639                 {
 640                         p->alpha = (count & 7) * 16 + (rand()&15);
 641                         count &= ~7;
 642                 }
 643                 else
 644                 {
 645                         p->alpha = 128;
 646                         count -= 8;
 647                 }
 648
 649                 p->texnum = particletexture;
 650                 p->scale = 6;
 651                 p->die = cl.time + 1; //lhrandom(0.1, 0.5);
 652                 p->color = (color&~7) + (rand()&7);
 653                 p->type = pt_fade; //static; //slowgrav;
 654                 for (j=0 ; j<3 ; j++)
 655                 {
 656                         p->org[j] = org[j] + ((rand()&15)-8);
 657                         p->vel[j] = dir[j]*15;// + (rand()%300)-150;
 658                 }
 659         }
 660 }
 661
 662 // LordHavoc: added this for spawning sparks/dust (which have strong gravity)
 663 /*
 664 ===============
 665 R_SparkShower
 666
 667 ===============
 668 */
 669 void R_SparkShower (vec3_t org, vec3_t dir, int count, int type)
 670 {
 671         int                     i, j;
 672         particle_t      *p;
 673         if (!r_particles.value) return; // LordHavoc: particles are optional
 674
 675         if (!free_particles)
 676                 return;
 677         p = free_particles;
 678         free_particles = p->next;
 679         p->next = active_particles;
 680         active_particles = p;
 681         if (type == 0) // sparks
 682         {
 683                 p->texnum = smokeparticletexture[rand()&7];
 684                 p->scale = 15;
 685                 p->alpha = 64;
 686                 p->color = (rand()&3)+12;
 687                 p->type = pt_bulletpuff;
 688                 p->die = cl.time + 1;
 689                 VectorCopy(org, p->org);
 690                 p->vel[0] = p->vel[1] = p->vel[2] = 0;
 691         }
 692         else // blood
 693         {
 694                 p->texnum = smokeparticletexture[rand()&7];
 695                 p->scale = 12;
 696                 p->alpha = 128;
 697                 p->color = (rand()&3)+68;
 698                 p->type = pt_bloodcloud;
 699                 p->die = cl.time + 0.5;
 700                 VectorCopy(org, p->org);
 701                 p->vel[0] = p->vel[1] = p->vel[2] = 0;
 702                 return;
 703         }
 704         for (i=0 ; i<count ; i++)
 705         {
 706                 if (!free_particles)
 707                         return;
 708                 p = free_particles;
 709                 free_particles = p->next;
 710                 p->next = active_particles;
 711                 active_particles = p;
 712
 713                 p->texnum = flareparticletexture;
 714                 p->scale = 2;
 715                 p->alpha = 255;
 716                 p->die = cl.time + 0.0625 * (rand()&15);
 717                 /*
 718                 if (type == 0) // sparks
 719                 {
 720                 */
 721                         p->type = pt_dust;
 722                         p->ramp = (rand()&3);
 723                         p->color = ramp1[(int)p->ramp];
 724                         for (j=0 ; j<3 ; j++)
 725                         {
 726                                 p->org[j] = org[j] + ((rand()&7)-4);
 727                                 p->vel[j] = dir[j] + (rand()%192)-96;
 728                         }
 729                 /*
 730                 }
 731                 else // blood
 732                 {
 733                         p->type = pt_fadespark2;
 734                         p->color = 67 + (rand()&3);
 735                         for (j=0 ; j<3 ; j++)
 736                         {
 737                                 p->org[j] = org[j] + (rand()&7)-4;
 738                                 p->vel[j] = dir[j] + (rand()&63)-32;
 739                         }
 740                 }
 741                 */
 742         }
 743 }
 744
 745 void R_BloodShower (vec3_t mins, vec3_t maxs, float velspeed, int count)
 746 {
 747         int                     i, j;
 748         particle_t      *p;
 749         vec3_t          diff;
 750         vec3_t          center;
 751         vec3_t          velscale;
 752         if (!r_particles.value) return; // LordHavoc: particles are optional
 753
 754         VectorSubtract(maxs, mins, diff);
 755         center[0] = (mins[0] + maxs[0]) * 0.5;
 756         center[1] = (mins[1] + maxs[1]) * 0.5;
 757         center[2] = (mins[2] + maxs[2]) * 0.5;
 758         velscale[0] = velspeed * 2.0 / diff[0];
 759         velscale[1] = velspeed * 2.0 / diff[1];
 760         velscale[2] = velspeed * 2.0 / diff[2];
 761
 762         for (i=0 ; i<count ; i++)
 763         {
 764                 if (!free_particles)
 765                         return;
 766                 p = free_particles;
 767                 free_particles = p->next;
 768                 p->next = active_particles;
 769                 active_particles = p;
 770
 771                 p->texnum = bloodcloudparticletexture;
 772                 p->scale = 12;
 773                 p->alpha = 96 + (rand()&63);
 774                 p->die = cl.time + 2; //0.015625 * (rand()%128);
 775                 p->type = pt_fadespark;
 776                 p->color = (rand()&3)+68;
 777 //              p->color = 67 + (rand()&3);
 778                 for (j=0 ; j<3 ; j++)
 779                 {
 780                         p->org[j] = diff[j] * (float) (rand()%1024) * (1.0 / 1024.0) + mins[j];
 781                         p->vel[j] = (p->org[j] - center[j]) * velscale[j];
 782                 }
 783         }
 784 }
 785
 786 void R_ParticleCube (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int gravity, int randomvel)
 787 {
 788         int                     i, j;
 789         particle_t      *p;
 790         vec3_t          diff;
 791         float           t;
 792         if (!r_particles.value) return; // LordHavoc: particles are optional
 793         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
 794         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
 795         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
 796
 797         VectorSubtract(maxs, mins, diff);
 798
 799         for (i=0 ; i<count ; i++)
 800         {
 801                 if (!free_particles)
 802                         return;
 803                 p = free_particles;
 804                 free_particles = p->next;
 805                 p->next = active_particles;
 806                 active_particles = p;
 807
 808                 p->texnum = flareparticletexture;
 809                 p->scale = 6;
 810                 p->alpha = 255;
 811                 p->die = cl.time + 1 + (rand()&15)*0.0625;
 812                 if (gravity)
 813                         p->type = pt_grav;
 814                 else
 815                         p->type = pt_static;
 816                 p->color = colorbase + (rand()&3);
 817                 for (j=0 ; j<3 ; j++)
 818                 {
 819                         p->org[j] = diff[j] * (float) (rand()&1023) * (1.0 / 1024.0) + mins[j];
 820                         if (randomvel)
 821                                 p->vel[j] = dir[j] + (rand()%randomvel)-(randomvel*0.5);
 822                         else
 823                                 p->vel[j] = 0;
 824                 }
 825         }
 826 }
 827
 828 void R_ParticleRain (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int type)
 829 {
 830         int                     i;
 831         particle_t      *p;
 832         vec3_t          diff;
 833         vec3_t          org;
 834         vec3_t          vel;
 835         float           t, z;
 836         if (!r_particles.value) return; // LordHavoc: particles are optional
 837         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
 838         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
 839         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
 840         if (dir[2] < 0) // falling
 841         {
 842                 t = (maxs[2] - mins[2]) / -dir[2];
 843                 z = maxs[2];
 844         }
 845         else // rising??
 846         {
 847                 t = (maxs[2] - mins[2]) / dir[2];
 848                 z = mins[2];
 849         }
 850         if (t < 0 || t > 2) // sanity check
 851                 t = 2;
 852         t += cl.time;
 853
 854         VectorSubtract(maxs, mins, diff);
 855
 856         for (i=0 ; i<count ; i++)
 857         {
 858                 if (!free_particles)
 859                         return;
 860                 p = free_particles;
 861                 free_particles = p->next;
 862                 p->next = active_particles;
 863                 active_particles = p;
 864
 865                 vel[0] = dir[0] + (rand()&31) - 16;
 866                 vel[1] = dir[1] + (rand()&31) - 16;
 867                 vel[2] = dir[2] + (rand()&63) - 32;
 868                 org[0] = diff[0] * (float) (rand()&1023) * (1.0 / 1024.0) + mins[0];
 869                 org[1] = diff[1] * (float) (rand()&1023) * (1.0 / 1024.0) + mins[1];
 870                 org[2] = z;
 871
 872                 p->scale = 1.5;
 873                 p->alpha = 255;
 874                 p->die = t;
 875                 if (type == 1)
 876                 {
 877                         p->texnum = particletexture;
 878                         p->type = pt_snow;
 879                 }
 880                 else // 0
 881                 {
 882                         p->texnum = rainparticletexture;
 883                         p->type = pt_static;
 884                 }
 885                 p->color = colorbase + (rand()&3);
 886                 VectorCopy(org, p->org);
 887                 VectorCopy(vel, p->vel);
 888                 VectorCopy(vel, p->vel2);
 889         }
 890 }
 891
 892
 893 /*
 894 ===============
 895 R_LavaSplash
 896
 897 ===============
 898 */
 899 void R_LavaSplash (vec3_t org)
 900 {
 901         int                     i, j, k;
 902         particle_t      *p;
 903         float           vel;
 904         vec3_t          dir;
 905         if (!r_particles.value) return; // LordHavoc: particles are optional
 906
 907         for (i=-16 ; i<16 ; i+=2)
 908                 for (j=-16 ; j<16 ; j+=2)
 909                         for (k=0 ; k<1 ; k++)
 910                         {
 911                                 if (!free_particles)
 912                                         return;
 913                                 p = free_particles;
 914                                 free_particles = p->next;
 915                                 p->next = active_particles;
 916                                 active_particles = p;
 917
 918                                 p->texnum = flareparticletexture;
 919                                 p->scale = 10;
 920                                 p->alpha = 128;
 921                                 p->die = cl.time + 2 + (rand()&31) * 0.02;
 922                                 p->color = 224 + (rand()&7);
 923                                 p->type = pt_slowgrav;
 924
 925                                 dir[0] = j*8 + (rand()&7);
 926                                 dir[1] = i*8 + (rand()&7);
 927                                 dir[2] = 256;
 928
 929                                 p->org[0] = org[0] + dir[0];
 930                                 p->org[1] = org[1] + dir[1];
 931                                 p->org[2] = org[2] + (rand()&63);
 932
 933                                 VectorNormalize (dir);
 934                                 vel = 50 + (rand()&63);
 935                                 VectorScale (dir, vel, p->vel);
 936                         }
 937 }
 938
 939 /*
 940 ===============
 941 R_TeleportSplash
 942
 943 ===============
 944 */
 945 void R_TeleportSplash (vec3_t org)
 946 {
 947         int                     i, j, k;
 948         particle_t      *p;
 949 //      vec3_t          dir;
 950         if (!r_particles.value) return; // LordHavoc: particles are optional
 951
 952         /*
 953         for (i=-16 ; i<16 ; i+=4)
 954                 for (j=-16 ; j<16 ; j+=4)
 955                         for (k=-24 ; k<32 ; k+=4)
 956                         {
 957                                 if (!free_particles)
 958                                         return;
 959                                 p = free_particles;
 960                                 free_particles = p->next;
 961                                 p->next = active_particles;
 962                                 active_particles = p;
 963
 964                                 p->contents = 0;
 965                                 p->texnum = particletexture;
 966                                 p->scale = 2;
 967                                 p->alpha = 255;
 968                                 p->die = cl.time + 0.2 + (rand()&7) * 0.02;
 969                                 p->color = 7 + (rand()&7);
 970                                 p->type = pt_slowgrav;
 971
 972                                 dir[0] = j*8;
 973                                 dir[1] = i*8;
 974                                 dir[2] = k*8;
 975
 976                                 p->org[0] = org[0] + i + (rand()&3);
 977                                 p->org[1] = org[1] + j + (rand()&3);
 978                                 p->org[2] = org[2] + k + (rand()&3);
 979
 980                                 VectorNormalize (dir);
 981                                 vel = 50 + (rand()&63);
 982                                 VectorScale (dir, vel, p->vel);
 983                         }
 984         */
 985
 986         for (i=-24 ; i<24 ; i+=8)
 987                 for (j=-24 ; j<24 ; j+=8)
 988                         for (k=-24 ; k<32 ; k+=8)
 989                         {
 990                                 if (!free_particles)
 991                                         return;
 992                                 p = free_particles;
 993                                 free_particles = p->next;
 994                                 p->next = active_particles;
 995                                 active_particles = p;
 996
 997                                 p->texnum = flareparticletexture;
 998                                 p->scale = 4;
 999                                 p->alpha = lhrandom(32,256);
1000                                 p->die = cl.time + 5;
1001                                 p->color = 254; //8 + (rand()&7);
1002                                 p->type = pt_fadespark;
1003
1004                                 p->org[0] = org[0] + i + (rand()&7);
1005                                 p->org[1] = org[1] + j + (rand()&7);
1006                                 p->org[2] = org[2] + k + (rand()&7);
1007
1008                                 p->vel[0] = i*2 + (rand()%25) - 12;
1009                                 p->vel[1] = j*2 + (rand()%25) - 12;
1010                                 p->vel[2] = k*2 + (rand()%25) - 12 + 40;
1011                         }
1012 }
1013
1014 void R_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent)
1015 {
1016         vec3_t          vec;
1017         float           len, dec = 0, t, nt, speed;
1018         int                     j, contents, bubbles;
1019         particle_t      *p;
1020         static int      tracercount;
1021         if (!r_particles.value) return; // LordHavoc: particles are optional
1022
1023         t = cl.oldtime;
1024         nt = cl.time;
1025         if (ent->trail_leftover < 0)
1026                 ent->trail_leftover = 0;
1027         t += ent->trail_leftover;
1028         ent->trail_leftover -= (cl.time - cl.oldtime);
1029         if (t >= cl.time)
1030                 return;
1031
1032         contents = Mod_PointInLeaf(start, cl.worldmodel)->contents;
1033         if (contents == CONTENTS_SKY || contents == CONTENTS_LAVA)
1034                 return;
1035
1036         VectorSubtract (end, start, vec);
1037         len = VectorNormalizeLength (vec);
1038         if (len <= 0.01f)
1039                 return;
1040         speed = len / (nt - t);
1041
1042         bubbles = (contents == CONTENTS_WATER || contents == CONTENTS_SLIME);
1043
1044         while (t < nt)
1045         {
1046                 if (!free_particles)
1047                         return;
1048                 p = free_particles;
1049                 free_particles = p->next;
1050                 p->next = active_particles;
1051                 active_particles = p;
1052
1053                 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1054                 p->die = cl.time + 2;
1055
1056                 switch (type)
1057                 {
1058                         case 0: // rocket trail
1059                         case 1: // grenade trail
1060                                 if (bubbles)
1061                                 {
1062                                         dec = 0.005f;
1063                                         p->texnum = bubbleparticletexture;
1064                                         p->scale = lhrandom(1,2);
1065                                         p->alpha = 255;
1066                                         p->color = (rand()&3)+12;
1067                                         p->type = pt_bubble;
1068                                         p->die = cl.time + 2;
1069                                         for (j=0 ; j<3 ; j++)
1070                                         {
1071                                                 p->vel[j] = (rand()&31)-16;
1072                                                 p->org[j] = start[j] + ((rand()&3)-2);
1073                                         }
1074                                 }
1075                                 else
1076                                 {
1077                                         dec = 0.02f;
1078                                         p->texnum = smokeparticletexture[rand()&7];
1079                                         p->scale = lhrandom(6, 10);
1080                                         p->alpha = 64 + (rand()&31);
1081                                         p->color = (rand()&3)+12;
1082                                         p->type = pt_smoke;
1083                                         p->die = cl.time + 10000;
1084                                         VectorCopy(start, p->org);
1085                                 }
1086                                 break;
1087
1088                                 /*
1089                         case 1: // smoke smoke
1090                                 dec = 0.016f;
1091                                 p->texnum = smokeparticletexture;
1092                                 p->scale = lhrandom(6,9);
1093                                 p->alpha = 64;
1094                                 if (r_smokecolor.value)
1095                                         p->color = r_smokecolor.value;
1096                                 else
1097                                         p->color = (rand()&3)+12;
1098                                 p->type = pt_smoke;
1099                                 p->die = cl.time + 1;
1100                                 VectorCopy(start, p->org);
1101                                 break;
1102                                 */
1103
1104                         case 2: // blood
1105                                 dec = 0.025f;
1106                                 p->texnum = smokeparticletexture[rand()&7];
1107                                 p->scale = lhrandom(6, 8);
1108                                 p->alpha = 255;
1109                                 p->color = (rand()&3)+68;
1110                                 p->type = pt_bloodcloud;
1111                                 p->die = cl.time + 2;
1112                                 for (j=0 ; j<3 ; j++)
1113                                 {
1114                                         p->vel[j] = (rand()&15)-8;
1115                                         p->org[j] = start[j] + ((rand()&3)-2);
1116                                 }
1117                                 break;
1118
1119                         case 3:
1120                         case 5: // tracer
1121                                 dec = 0.01f;
1122                                 p->texnum = flareparticletexture;
1123                                 p->scale = 2;
1124                                 p->alpha = 255;
1125                                 p->die = cl.time + 0.2; //5;
1126                                 p->type = pt_static;
1127                                 if (type == 3)
1128                                         p->color = 52 + ((tracercount&4)<<1);
1129                                 else
1130                                         p->color = 230 + ((tracercount&4)<<1);
1131
1132                                 tracercount++;
1133
1134                                 VectorCopy (start, p->org);
1135                                 if (tracercount & 1)
1136                                 {
1137                                         p->vel[0] = 30*vec[1];
1138                                         p->vel[1] = 30*-vec[0];
1139                                 }
1140                                 else
1141                                 {
1142                                         p->vel[0] = 30*-vec[1];
1143                                         p->vel[1] = 30*vec[0];
1144                                 }
1145                                 break;
1146
1147                         case 4: // slight blood
1148                                 dec = 0.025f; // sparse trail
1149                                 p->texnum = smokeparticletexture[rand()&7];
1150                                 p->scale = lhrandom(6, 8);
1151                                 p->alpha = 192;
1152                                 p->color = (rand()&3)+68;
1153                                 p->type = pt_fadespark2;
1154                                 p->die = cl.time + 2;
1155                                 for (j=0 ; j<3 ; j++)
1156                                 {
1157                                         p->vel[j] = (rand()&15)-8;
1158                                         p->org[j] = start[j] + ((rand()&3)-2);
1159                                 }
1160                                 break;
1161
1162                         case 6: // voor trail
1163                                 dec = 0.05f; // sparse trail
1164                                 p->texnum = smokeparticletexture[rand()&7];
1165                                 p->scale = lhrandom(3, 5);
1166                                 p->alpha = 255;
1167                                 p->color = 9*16 + 8 + (rand()&3);
1168                                 p->type = pt_fadespark2;
1169                                 p->die = cl.time + 2;
1170                                 for (j=0 ; j<3 ; j++)
1171                                 {
1172                                         p->vel[j] = (rand()&15)-8;
1173                                         p->org[j] = start[j] + ((rand()&3)-2);
1174                                 }
1175                                 break;
1176
1177                         case 7: // Nehahra smoke tracer
1178                                 dec = 0.14f;
1179                                 p->texnum = smokeparticletexture[rand()&7];
1180                                 p->scale = lhrandom(8, 12);
1181                                 p->alpha = 64;
1182                                 p->color = (rand()&3)+12;
1183                                 p->type = pt_smoke;
1184                                 p->die = cl.time + 10000;
1185                                 for (j=0 ; j<3 ; j++)
1186                                         p->org[j] = start[j] + ((rand()&3)-2);
1187                                 break;
1188                 }
1189
1190                 t += dec;
1191                 dec *= speed;
1192                 VectorMA (start, dec, vec, start);
1193         }
1194         ent->trail_leftover = t - cl.time;
1195 }
1196
1197 void R_RocketTrail2 (vec3_t start, vec3_t end, int color, entity_t *ent)
1198 {
1199         vec3_t          vec;
1200         float           len;
1201         particle_t      *p;
1202         if (!r_particles.value) return; // LordHavoc: particles are optional
1203
1204         VectorSubtract (end, start, vec);
1205         len = VectorNormalizeLength (vec);
1206         while (len > 0)
1207         {
1208                 len -= 3;
1209
1210                 if (!free_particles)
1211                         return;
1212                 p = free_particles;
1213                 free_particles = p->next;
1214                 p->next = active_particles;
1215                 active_particles = p;
1216
1217                 VectorCopy (vec3_origin, p->vel);
1218
1219                 p->texnum = flareparticletexture;
1220                 p->scale = 8;
1221                 p->alpha = 192;
1222                 p->color = color;
1223                 p->type = pt_smoke;
1224                 p->die = cl.time + 1;
1225                 VectorCopy(start, p->org);
1226 //              for (j=0 ; j<3 ; j++)
1227 //                      p->org[j] = start[j] + ((rand()&15)-8);
1228
1229                 VectorAdd (start, vec, start);
1230         }
1231 }
1232
1233
1234 extern qboolean lighthalf;
1235
1236 /*
1237 ===============
1238 R_DrawParticles
1239 ===============
1240 */
1241 extern  cvar_t  sv_gravity;
1242 void R_CompleteLightPoint (vec3_t color, vec3_t p);
1243
1244 void R_DrawParticles (void)
1245 {
1246         particle_t              *p, *kill;
1247         int                             i, r,g,b,a;
1248         float                   grav, grav1, time1, time2, time3, dvel, frametime, scale, scale2;
1249         byte                    *color24;
1250         vec3_t                  up, right, uprightangles, forward2, up2, right2, v, tempcolor;
1251
1252         // LordHavoc: early out condition
1253         if (!active_particles)
1254                 return;
1255
1256         VectorScale (vup, 1.5, up);
1257         VectorScale (vright, 1.5, right);
1258
1259         uprightangles[0] = 0;
1260         uprightangles[1] = r_refdef.viewangles[1];
1261         uprightangles[2] = 0;
1262         AngleVectors (uprightangles, forward2, right2, up2);
1263
1264         frametime = cl.time - cl.oldtime;
1265         time3 = frametime * 15;
1266         time2 = frametime * 10; // 15;
1267         time1 = frametime * 5;
1268         grav = (grav1 = frametime * sv_gravity.value) * 0.05;
1269         dvel = 1+4*frametime;
1270
1271         for ( ;; )
1272         {
1273                 kill = active_particles;
1274                 if (kill && kill->die < cl.time)
1275                 {
1276                         active_particles = kill->next;
1277                         kill->next = free_particles;
1278                         free_particles = kill;
1279                         continue;
1280                 }
1281                 break;
1282         }
1283
1284         for (p=active_particles ; p ; p=p->next)
1285         {
1286                 for ( ;; )
1287                 {
1288                         kill = p->next;
1289                         if (kill && kill->die < cl.time)
1290                         {
1291                                 p->next = kill->next;
1292                                 kill->next = free_particles;
1293                                 free_particles = kill;
1294                                 continue;
1295                         }
1296                         break;
1297                 }
1298                 // LordHavoc: 'removed last in list' condition
1299                 if (!p)
1300                         break;
1301
1302                 VectorSubtract(p->org, r_refdef.vieworg, v);
1303                 if (DotProduct(v, v) >= 256.0f)
1304                 {
1305                         scale = p->scale * -0.5;scale2 = p->scale * 0.5;
1306                         color24 = (byte *) &d_8to24table[(int)p->color];
1307                         r = color24[0];
1308                         g = color24[1];
1309                         b = color24[2];
1310                         a = p->alpha;
1311                         if (lighthalf)
1312                         {
1313                                 r >>= 1;
1314                                 g >>= 1;
1315                                 b >>= 1;
1316                         }
1317                         if (r_dynamicparticles.value)
1318                         {
1319                                 R_CompleteLightPoint(tempcolor, p->org);
1320                                 r = (r * (int) tempcolor[0]) >> 7;
1321                                 g = (g * (int) tempcolor[1]) >> 7;
1322                                 b = (b * (int) tempcolor[2]) >> 7;
1323                         }
1324                         transpolybegin(p->texnum, 0, p->texnum, TPOLYTYPE_ALPHA);
1325                         if (p->texnum == rainparticletexture) // rain streak
1326                         {
1327                                 transpolyvert(p->org[0] + up2[0]*scale  + right2[0]*scale , p->org[1] + up2[1]*scale  + right2[1]*scale , p->org[2] + up2[2]*scale  + right2[2]*scale , 0,1,r,g,b,a);
1328                                 transpolyvert(p->org[0] + up2[0]*scale2 + right2[0]*scale , p->org[1] + up2[1]*scale2 + right2[1]*scale , p->org[2] + up2[2]*scale2 + right2[2]*scale , 0,0,r,g,b,a);
1329                                 transpolyvert(p->org[0] + up2[0]*scale2 + right2[0]*scale2, p->org[1] + up2[1]*scale2 + right2[1]*scale2, p->org[2] + up2[2]*scale2 + right2[2]*scale2, 1,0,r,g,b,a);
1330                                 transpolyvert(p->org[0] + up2[0]*scale  + right2[0]*scale2, p->org[1] + up2[1]*scale  + right2[1]*scale2, p->org[2] + up2[2]*scale  + right2[2]*scale2, 1,1,r,g,b,a);
1331                         }
1332                         else
1333                         {
1334                                 transpolyvert(p->org[0] + up[0]*scale  + right[0]*scale , p->org[1] + up[1]*scale  + right[1]*scale , p->org[2] + up[2]*scale  + right[2]*scale , 0,1,r,g,b,a);
1335                                 transpolyvert(p->org[0] + up[0]*scale2 + right[0]*scale , p->org[1] + up[1]*scale2 + right[1]*scale , p->org[2] + up[2]*scale2 + right[2]*scale , 0,0,r,g,b,a);
1336                                 transpolyvert(p->org[0] + up[0]*scale2 + right[0]*scale2, p->org[1] + up[1]*scale2 + right[1]*scale2, p->org[2] + up[2]*scale2 + right[2]*scale2, 1,0,r,g,b,a);
1337                                 transpolyvert(p->org[0] + up[0]*scale  + right[0]*scale2, p->org[1] + up[1]*scale  + right[1]*scale2, p->org[2] + up[2]*scale  + right[2]*scale2, 1,1,r,g,b,a);
1338                         }
1339                         transpolyend();
1340                 }
1341
1342                 p->org[0] += p->vel[0]*frametime;
1343                 p->org[1] += p->vel[1]*frametime;
1344                 p->org[2] += p->vel[2]*frametime;
1345
1346                 switch (p->type)
1347                 {
1348                 case pt_static:
1349                         break;
1350                 case pt_fire:
1351                         p->ramp += time1;
1352                         if (p->ramp >= 6)
1353                                 p->die = -1;
1354                         else
1355                                 p->color = ramp3[(int)p->ramp];
1356                         p->vel[2] += grav;
1357                         break;
1358
1359                 case pt_explode:
1360                         p->ramp += time2;
1361                         if (p->ramp >=8)
1362                                 p->die = -1;
1363                         else
1364                                 p->color = ramp1[(int)p->ramp];
1365 //                      p->vel[2] -= grav1; // LordHavoc: apply full gravity to explosion sparks
1366                         for (i=0 ; i<3 ; i++)
1367                                 p->vel[i] *= dvel;
1368 //                      p->vel[2] -= grav;
1369                         break;
1370
1371                 case pt_explode2:
1372                         p->ramp += time3;
1373                         if (p->ramp >= 8)
1374                                 p->die = -1;
1375                         else
1376                                 p->color = ramp2[(int)p->ramp];
1377 //                      p->vel[2] -= grav1; // LordHavoc: apply full gravity to explosion sparks
1378                         for (i=0 ; i<3 ; i++)
1379 //                              p->vel[i] -= p->vel[i]*frametime;
1380                                 p->vel[i] *= dvel;
1381 ////                    p->vel[2] -= grav;
1382                         break;
1383
1384                 case pt_blob:
1385                         for (i=0 ; i<3 ; i++)
1386                                 p->vel[i] += p->vel[i]*dvel;
1387                         p->vel[2] -= grav;
1388                         break;
1389
1390                 case pt_blob2:
1391                         for (i=0 ; i<2 ; i++)
1392                                 p->vel[i] -= p->vel[i]*dvel;
1393                         p->vel[2] -= grav;
1394                         break;
1395
1396                 case pt_grav:
1397                         p->vel[2] -= grav1;
1398                         break;
1399                 case pt_slowgrav:
1400                         p->vel[2] -= grav;
1401                         break;
1402 // LordHavoc: gunshot spark showers
1403                 case pt_dust:
1404                         p->ramp += time1;
1405                         p->scale -= frametime * 4;
1406                         if (p->ramp >= 8 || p->scale <= 0)
1407                                 p->die = -1;
1408                         else
1409                                 p->color = ramp3[(int)p->ramp];
1410                         p->vel[2] -= grav1;
1411                         break;
1412 // LordHavoc: for smoke trails
1413                 case pt_smoke:
1414                         p->scale += frametime * 4;
1415                         p->alpha -= frametime * 48;
1416 //                      p->vel[2] += grav;
1417                         if (p->alpha < 1)
1418                                 p->die = -1;
1419                         break;
1420                 case pt_snow:
1421                         if (cl.time > p->time2)
1422                         {
1423                                 p->time2 = cl.time + (rand() & 3) * 0.1;
1424                                 p->vel[0] = (rand()&63)-32 + p->vel2[0];
1425                                 p->vel[1] = (rand()&63)-32 + p->vel2[1];
1426                                 p->vel[2] = (rand()&63)-32 + p->vel2[2];
1427                         }
1428                         break;
1429                 case pt_bulletpuff:
1430                         p->scale -= frametime * 64;
1431                         p->alpha -= frametime * 1024;
1432                         p->vel[2] -= grav;
1433                         if (p->alpha < 1 || p->scale < 1)
1434                                 p->die = -1;
1435                         break;
1436                 case pt_bloodcloud:
1437                         p->scale += frametime * 4;
1438                         p->alpha -= frametime * 64;
1439                         p->vel[2] -= grav;
1440                         if (p->alpha < 1 || p->scale < 1)
1441                                 p->die = -1;
1442                         break;
1443                 case pt_fadespark:
1444                         p->alpha -= frametime * 256;
1445                         p->vel[2] -= grav;
1446                         if (p->alpha < 1)
1447                                 p->die = -1;
1448                         break;
1449                 case pt_fadespark2:
1450                         p->alpha -= frametime * 512;
1451                         p->vel[2] -= grav;
1452                         if (p->alpha < 1)
1453                                 p->die = -1;
1454                         break;
1455                 case pt_fallfadespark:
1456                         p->alpha -= frametime * 256;
1457                         p->vel[2] -= grav1;
1458                         if (p->alpha < 1)
1459                                 p->die = -1;
1460                         break;
1461                 case pt_fallfadespark2:
1462                         p->alpha -= frametime * 512;
1463                         p->vel[2] -= grav1;
1464                         if (p->alpha < 1)
1465                                 p->die = -1;
1466                         break;
1467                 case pt_fade:
1468                         p->alpha -= frametime * 512;
1469                         if (p->alpha < 1)
1470                                 p->die = -1;
1471                         break;
1472                 case pt_bubble:
1473                         if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents == CONTENTS_EMPTY)
1474                                 p->die = -1;
1475                         p->vel[2] += grav1 * 2;
1476                         if (p->vel[2] >= 200)
1477                                 p->vel[2] = lhrandom(130, 200);
1478                         if (cl.time > p->time2)
1479                         {
1480                                 p->time2 = cl.time + lhrandom(0, 0.5);
1481                                 p->vel[0] = lhrandom(-32,32);
1482                                 p->vel[1] = lhrandom(-32,32);
1483                         }
1484                         p->alpha -= frametime * 64;
1485                         if (p->alpha < 1)
1486                                 p->die = -1;
1487                         break;
1488                 }
1489         }
1490 }
1491