got rid of buildnumber.c and buildnum program, now uses builddate.c (touched each...
[divverent/darkplaces.git] / 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
29 }
30 ptype_t;
31
32 typedef struct particle_s
33 {
34         ptype_t         type;
35         int                     orientation; // typically PARTICLE_BILLBOARD
36         vec3_t          org;
37         vec3_t          vel;
38         int                     additive;
39         int                     tex;
40         float           die;
41         float           scalex;
42         float           scaley;
43         float           alpha; // 0-255
44         float           time2; // used for various things (snow fluttering, for example)
45         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)
46         vec3_t          oldorg;
47         vec3_t          vel2; // used for snow fluttering (base velocity, wind for instance)
48         float           friction; // how much air friction affects this object (objects with a low mass/size ratio tend to get more air friction)
49         float           pressure; // if non-zero, apply pressure to other particles
50         int                     dynlight; // if set the particle will be dynamically lit (if cl_dynamicparticles is on), used for smoke and blood
51         byte            color[4];
52 }
53 particle_t;
54
55 static int particlepalette[256] =
56 {
57         0x000000,0x0f0f0f,0x1f1f1f,0x2f2f2f,0x3f3f3f,0x4b4b4b,0x5b5b5b,0x6b6b6b,
58         0x7b7b7b,0x8b8b8b,0x9b9b9b,0xababab,0xbbbbbb,0xcbcbcb,0xdbdbdb,0xebebeb,
59         0x0f0b07,0x170f0b,0x1f170b,0x271b0f,0x2f2313,0x372b17,0x3f2f17,0x4b371b,
60         0x533b1b,0x5b431f,0x634b1f,0x6b531f,0x73571f,0x7b5f23,0x836723,0x8f6f23,
61         0x0b0b0f,0x13131b,0x1b1b27,0x272733,0x2f2f3f,0x37374b,0x3f3f57,0x474767,
62         0x4f4f73,0x5b5b7f,0x63638b,0x6b6b97,0x7373a3,0x7b7baf,0x8383bb,0x8b8bcb,
63         0x000000,0x070700,0x0b0b00,0x131300,0x1b1b00,0x232300,0x2b2b07,0x2f2f07,
64         0x373707,0x3f3f07,0x474707,0x4b4b0b,0x53530b,0x5b5b0b,0x63630b,0x6b6b0f,
65         0x070000,0x0f0000,0x170000,0x1f0000,0x270000,0x2f0000,0x370000,0x3f0000,
66         0x470000,0x4f0000,0x570000,0x5f0000,0x670000,0x6f0000,0x770000,0x7f0000,
67         0x131300,0x1b1b00,0x232300,0x2f2b00,0x372f00,0x433700,0x4b3b07,0x574307,
68         0x5f4707,0x6b4b0b,0x77530f,0x835713,0x8b5b13,0x975f1b,0xa3631f,0xaf6723,
69         0x231307,0x2f170b,0x3b1f0f,0x4b2313,0x572b17,0x632f1f,0x733723,0x7f3b2b,
70         0x8f4333,0x9f4f33,0xaf632f,0xbf772f,0xcf8f2b,0xdfab27,0xefcb1f,0xfff31b,
71         0x0b0700,0x1b1300,0x2b230f,0x372b13,0x47331b,0x533723,0x633f2b,0x6f4733,
72         0x7f533f,0x8b5f47,0x9b6b53,0xa77b5f,0xb7876b,0xc3937b,0xd3a38b,0xe3b397,
73         0xab8ba3,0x9f7f97,0x937387,0x8b677b,0x7f5b6f,0x775363,0x6b4b57,0x5f3f4b,
74         0x573743,0x4b2f37,0x43272f,0x371f23,0x2b171b,0x231313,0x170b0b,0x0f0707,
75         0xbb739f,0xaf6b8f,0xa35f83,0x975777,0x8b4f6b,0x7f4b5f,0x734353,0x6b3b4b,
76         0x5f333f,0x532b37,0x47232b,0x3b1f23,0x2f171b,0x231313,0x170b0b,0x0f0707,
77         0xdbc3bb,0xcbb3a7,0xbfa39b,0xaf978b,0xa3877b,0x977b6f,0x876f5f,0x7b6353,
78         0x6b5747,0x5f4b3b,0x533f33,0x433327,0x372b1f,0x271f17,0x1b130f,0x0f0b07,
79         0x6f837b,0x677b6f,0x5f7367,0x576b5f,0x4f6357,0x475b4f,0x3f5347,0x374b3f,
80         0x2f4337,0x2b3b2f,0x233327,0x1f2b1f,0x172317,0x0f1b13,0x0b130b,0x070b07,
81         0xfff31b,0xefdf17,0xdbcb13,0xcbb70f,0xbba70f,0xab970b,0x9b8307,0x8b7307,
82         0x7b6307,0x6b5300,0x5b4700,0x4b3700,0x3b2b00,0x2b1f00,0x1b0f00,0x0b0700,
83         0x0000ff,0x0b0bef,0x1313df,0x1b1bcf,0x2323bf,0x2b2baf,0x2f2f9f,0x2f2f8f,
84         0x2f2f7f,0x2f2f6f,0x2f2f5f,0x2b2b4f,0x23233f,0x1b1b2f,0x13131f,0x0b0b0f,
85         0x2b0000,0x3b0000,0x4b0700,0x5f0700,0x6f0f00,0x7f1707,0x931f07,0xa3270b,
86         0xb7330f,0xc34b1b,0xcf632b,0xdb7f3b,0xe3974f,0xe7ab5f,0xefbf77,0xf7d38b,
87         0xa77b3b,0xb79b37,0xc7c337,0xe7e357,0x7fbfff,0xabe7ff,0xd7ffff,0x670000,
88         0x8b0000,0xb30000,0xd70000,0xff0000,0xfff393,0xfff7c7,0xffffff,0x9f5b53
89 };
90
91 static int explosparkramp[8] = {0x4b0700, 0x6f0f00, 0x931f07, 0xb7330f, 0xcf632b, 0xe3974f, 0xffe7b5, 0xffffff};
92 //static int explounderwatersparkramp[8] = {0x00074b, 0x000f6f, 0x071f93, 0x0f33b7, 0x2b63cf, 0x4f97e3, 0xb5e7ff, 0xffffff};
93
94 // these must match r_part.c's textures
95 static const int tex_smoke[8] = {0, 1, 2, 3, 4, 5, 6, 7};
96 static const int tex_bullethole[8] = {8, 9, 10, 11, 12, 13, 14, 15};
97 static const int tex_rainsplash[16] = {16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31};
98 static const int tex_particle = 32;
99 static const int tex_rain = 33;
100 static const int tex_bubble = 34;
101 static const int tex_rocketglow = 35;
102
103 static int                      cl_maxparticles;
104 static int                      cl_numparticles;
105 static particle_t       *particles;
106 static particle_t       **freeparticles; // list used only in compacting particles array
107 static renderparticle_t *cl_renderparticles;
108
109 static cvar_t cl_particles = {CVAR_SAVE, "cl_particles", "1"};
110 static cvar_t cl_particles_size = {CVAR_SAVE, "cl_particles_size", "1"};
111 static cvar_t cl_particles_bloodshowers = {CVAR_SAVE, "cl_particles_bloodshowers", "1"};
112 static cvar_t cl_particles_blood = {CVAR_SAVE, "cl_particles_blood", "1"};
113 static cvar_t cl_particles_smoke = {CVAR_SAVE, "cl_particles_smoke", "1"};
114 static cvar_t cl_particles_sparks = {CVAR_SAVE, "cl_particles_sparks", "1"};
115 static cvar_t cl_particles_bubbles = {CVAR_SAVE, "cl_particles_bubbles", "1"};
116 static cvar_t cl_particles_explosions = {CVAR_SAVE, "cl_particles_explosions", "0"};
117
118 static mempool_t *cl_part_mempool;
119
120 void CL_Particles_Clear(void)
121 {
122         cl_numparticles = 0;
123 }
124
125 /*
126 ===============
127 CL_InitParticles
128 ===============
129 */
130 void CL_ReadPointFile_f (void);
131 void CL_Particles_Init (void)
132 {
133         int             i;
134
135         i = COM_CheckParm ("-particles");
136
137         if (i)
138         {
139                 cl_maxparticles = (int)(atoi(com_argv[i+1]));
140                 if (cl_maxparticles < ABSOLUTE_MIN_PARTICLES)
141                         cl_maxparticles = ABSOLUTE_MIN_PARTICLES;
142         }
143         else
144                 cl_maxparticles = MAX_PARTICLES;
145
146         Cmd_AddCommand ("pointfile", CL_ReadPointFile_f);
147
148         Cvar_RegisterVariable (&cl_particles);
149         Cvar_RegisterVariable (&cl_particles_size);
150         Cvar_RegisterVariable (&cl_particles_bloodshowers);
151         Cvar_RegisterVariable (&cl_particles_blood);
152         Cvar_RegisterVariable (&cl_particles_smoke);
153         Cvar_RegisterVariable (&cl_particles_sparks);
154         Cvar_RegisterVariable (&cl_particles_bubbles);
155         Cvar_RegisterVariable (&cl_particles_explosions);
156
157         cl_part_mempool = Mem_AllocPool("CL_Part");
158         particles = (particle_t *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t));
159         freeparticles = (void *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t *));
160         cl_numparticles = 0;
161
162         // FIXME: r_refdef stuff should be allocated somewhere else?
163         r_refdef.particles = cl_renderparticles = Mem_Alloc(cl_refdef_mempool, cl_maxparticles * sizeof(renderparticle_t));
164 }
165
166 #define particle(ptype, porientation, pcolor, ptex, plight, padditive, pscalex, pscaley, palpha, ptime, pbounce, px, py, pz, pvx, pvy, pvz, ptime2, pvx2, pvy2, pvz2, pfriction, ppressure)\
167 {\
168         particle_t      *part;\
169         int tempcolor;\
170         if (cl_numparticles >= cl_maxparticles)\
171                 return;\
172         part = &particles[cl_numparticles++];\
173         part->type = (ptype);\
174         tempcolor = (pcolor);\
175         part->color[0] = ((tempcolor) >> 16) & 0xFF;\
176         part->color[1] = ((tempcolor) >> 8) & 0xFF;\
177         part->color[2] = (tempcolor) & 0xFF;\
178         part->color[3] = 0xFF;\
179         part->tex = (ptex);\
180         part->orientation = (porientation);\
181         part->dynlight = (plight);\
182         part->additive = (padditive);\
183         part->scalex = (pscalex);\
184         part->scaley = (pscaley);\
185         part->alpha = (palpha);\
186         part->die = cl.time + (ptime);\
187         part->bounce = (pbounce);\
188         part->org[0] = (px);\
189         part->org[1] = (py);\
190         part->org[2] = (pz);\
191         part->vel[0] = (pvx);\
192         part->vel[1] = (pvy);\
193         part->vel[2] = (pvz);\
194         part->time2 = (ptime2);\
195         part->vel2[0] = (pvx2);\
196         part->vel2[1] = (pvy2);\
197         part->vel2[2] = (pvz2);\
198         part->friction = (pfriction);\
199         part->pressure = (ppressure);\
200 }
201
202 /*
203 ===============
204 CL_EntityParticles
205 ===============
206 */
207 void CL_EntityParticles (entity_t *ent)
208 {
209         int                     i;
210         float           angle;
211         float           sp, sy, cp, cy;
212         vec3_t          forward;
213         float           dist;
214         float           beamlength;
215         static vec3_t avelocities[NUMVERTEXNORMALS];
216         if (!cl_particles.integer) return;
217
218         dist = 64;
219         beamlength = 16;
220
221         if (!avelocities[0][0])
222                 for (i=0 ; i<NUMVERTEXNORMALS*3 ; i++)
223                         avelocities[0][i] = (rand()&255) * 0.01;
224
225         for (i=0 ; i<NUMVERTEXNORMALS ; i++)
226         {
227                 angle = cl.time * avelocities[i][0];
228                 sy = sin(angle);
229                 cy = cos(angle);
230                 angle = cl.time * avelocities[i][1];
231                 sp = sin(angle);
232                 cp = cos(angle);
233
234                 forward[0] = cp*cy;
235                 forward[1] = cp*sy;
236                 forward[2] = -sp;
237
238                 particle(pt_oneframe, PARTICLE_BILLBOARD, particlepalette[0x6f], tex_particle, false, true, 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);
239         }
240 }
241
242
243 void CL_ReadPointFile_f (void)
244 {
245         vec3_t  org;
246         int             r, c;
247         char    *pointfile, *pointfilepos, *t, tchar;
248
249         pointfile = COM_LoadFile(va("maps/%s.pts", sv.name), true);
250         if (!pointfile)
251         {
252                 Con_Printf ("couldn't open %s.pts\n", sv.name);
253                 return;
254         }
255
256         Con_Printf ("Reading %s.pts...\n", sv.name);
257         c = 0;
258         pointfilepos = pointfile;
259         while (*pointfilepos)
260         {
261                 while (*pointfilepos == '\n' || *pointfilepos == '\r')
262                         pointfilepos++;
263                 if (!*pointfilepos)
264                         break;
265                 t = pointfilepos;
266                 while (*t && *t != '\n' && *t != '\r')
267                         t++;
268                 tchar = *t;
269                 *t = 0;
270                 r = sscanf (pointfilepos,"%f %f %f", &org[0], &org[1], &org[2]);
271                 *t = tchar;
272                 pointfilepos = t;
273                 if (r != 3)
274                         break;
275                 c++;
276
277                 if (cl_numparticles >= cl_maxparticles)
278                 {
279                         Con_Printf ("Not enough free particles\n");
280                         break;
281                 }
282                 particle(pt_static, PARTICLE_BILLBOARD, 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);
283         }
284
285         Mem_Free(pointfile);
286         Con_Printf ("%i points read\n", c);
287 }
288
289 /*
290 ===============
291 CL_ParseParticleEffect
292
293 Parse an effect out of the server message
294 ===============
295 */
296 void CL_ParseParticleEffect (void)
297 {
298         vec3_t          org, dir;
299         int                     i, count, msgcount, color;
300
301         for (i=0 ; i<3 ; i++)
302                 org[i] = MSG_ReadCoord ();
303         for (i=0 ; i<3 ; i++)
304                 dir[i] = MSG_ReadChar () * (1.0/16);
305         msgcount = MSG_ReadByte ();
306         color = MSG_ReadByte ();
307
308         if (msgcount == 255)
309                 count = 1024;
310         else
311                 count = msgcount;
312
313         CL_RunParticleEffect (org, dir, color, count);
314 }
315
316 /*
317 ===============
318 CL_ParticleExplosion
319
320 ===============
321 */
322 void CL_ParticleExplosion (vec3_t org, int smoke)
323 {
324         if (cl_particles.integer && cl_particles_explosions.integer)
325         {
326                 int i, j;
327                 float f;
328                 vec3_t v, end, ang;
329                 byte noise1[32*32], noise2[32*32];
330
331                 VectorClear(end); // hush MSVC
332                 i = Mod_PointInLeaf(org, cl.worldmodel)->contents;
333                 if (i == CONTENTS_SLIME || i == CONTENTS_WATER)
334                 {
335                         for (i = 0;i < 128;i++)
336                                 particle(pt_bubble, PARTICLE_BILLBOARD, 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);
337
338                         ang[2] = lhrandom(0, 360);
339                         fractalnoisequick(noise1, 32, 4);
340                         fractalnoisequick(noise2, 32, 8);
341                         for (i = 0;i < 32;i++)
342                         {
343                                 for (j = 0;j < 32;j++)
344                                 {
345                                         VectorRandom(v);
346                                         VectorMA(org, 16, v, v);
347                                         TraceLine(org, v, end, NULL, 0, true);
348                                         ang[0] = (j + 0.5f) * (360.0f / 32.0f);
349                                         ang[1] = (i + 0.5f) * (360.0f / 32.0f);
350                                         AngleVectors(ang, v, NULL, NULL);
351                                         f = noise1[j*32+i] * 1.5f;
352                                         VectorScale(v, f, v);
353                                         particle(pt_underwaterspark, PARTICLE_BILLBOARD, noise2[j*32+i] * 0x010101, tex_smoke[rand()&7], false, false, 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);
354                                         VectorScale(v, 0.75, v);
355                                         particle(pt_underwaterspark, PARTICLE_BILLBOARD, explosparkramp[(noise2[j*32+i] >> 5)], 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);
356                                 }
357                         }
358                 }
359                 else
360                 {
361                         ang[2] = lhrandom(0, 360);
362                         fractalnoisequick(noise1, 32, 4);
363                         fractalnoisequick(noise2, 32, 8);
364                         for (i = 0;i < 32;i++)
365                         {
366                                 for (j = 0;j < 32;j++)
367                                 {
368                                         VectorRandom(v);
369                                         VectorMA(org, 16, v, v);
370                                         TraceLine(org, v, end, NULL, 0, true);
371                                         ang[0] = (j + 0.5f) * (360.0f / 32.0f);
372                                         ang[1] = (i + 0.5f) * (360.0f / 32.0f);
373                                         AngleVectors(ang, v, NULL, NULL);
374                                         f = noise1[j*32+i] * 1.5f;
375                                         VectorScale(v, f, v);
376                                         particle(pt_spark, PARTICLE_BILLBOARD, noise2[j*32+i] * 0x010101, tex_smoke[rand()&7], false, false, 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);
377                                         VectorScale(v, 0.75, v);
378                                         particle(pt_spark, PARTICLE_BILLBOARD, explosparkramp[(noise2[j*32+i] >> 5)], 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);
379                                 //      VectorRandom(v);
380                                 //      VectorScale(v, 384, v);
381                                 //      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);
382                                 }
383                         }
384                 }
385         }
386         else
387                 R_NewExplosion(org);
388         R_Stain(org, 96, 80, 80, 80, 128, 176, 176, 176, 128);
389 }
390
391 /*
392 ===============
393 CL_ParticleExplosion2
394
395 ===============
396 */
397 void CL_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength)
398 {
399         int                     i;
400         if (!cl_particles.integer) return;
401
402         for (i = 0;i < 512;i++)
403                 particle(pt_fade, PARTICLE_BILLBOARD, particlepalette[colorStart + (i % colorLength)], 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), 0, 0, 0, 0, 0.1f, 0);
404 }
405
406 /*
407 ===============
408 CL_BlobExplosion
409
410 ===============
411 */
412 void CL_BlobExplosion (vec3_t org)
413 {
414         int                     i;
415         if (!cl_particles.integer) return;
416
417         R_Stain(org, 96, 96, 64, 96, 128, 160, 128, 160, 128);
418         for (i = 0;i < 256;i++)
419                 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);
420         for (i = 0;i < 256;i++)
421                 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);
422 }
423
424 /*
425 ===============
426 CL_RunParticleEffect
427
428 ===============
429 */
430 void CL_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count)
431 {
432         if (!cl_particles.integer) return;
433
434         if (count == 1024)
435         {
436                 CL_ParticleExplosion(org, false);
437                 return;
438         }
439         while (count--)
440                 particle(pt_fade, PARTICLE_BILLBOARD, particlepalette[color + (rand()&7)], 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), 0, 0, 0, 0, 0, 0);
441 }
442
443 // LordHavoc: added this for spawning sparks/dust (which have strong gravity)
444 /*
445 ===============
446 CL_SparkShower
447 ===============
448 */
449 void CL_SparkShower (vec3_t org, vec3_t dir, int count)
450 {
451         if (!cl_particles.integer) return;
452
453         R_Stain(org, 32, 96, 96, 96, 32, 128, 128, 128, 32);
454         CL_Decal(org, tex_bullethole[rand()&7], 16 * cl_particles_size.value, 0, 0, 0, 1);
455
456         // smoke puff
457         if (cl_particles_smoke.integer)
458                 particle(pt_bulletsmoke, PARTICLE_BILLBOARD, 0xA0A0A0, tex_smoke[rand()&7], true, true, 5, 5, 255, 9999, 0, org[0], org[1], org[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(0, 16), 0, 0, 0, 0, 0, 0);
459
460         if (cl_particles_sparks.integer)
461         {
462                 // sparks
463                 while(count--)
464                         particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(0, 255), 9999, 1.5, org[0], org[1], org[2], lhrandom(-64, 64) + dir[0], lhrandom(-64, 64) + dir[1], lhrandom(0, 128) + dir[2], 512.0f, 0, 0, 0, 0.2f, 0);
465         }
466 }
467
468 void CL_PlasmaBurn (vec3_t org)
469 {
470         if (!cl_particles.integer) return;
471
472         R_Stain(org, 48, 96, 96, 96, 48, 128, 128, 128, 48);
473 }
474
475 void CL_BloodPuff (vec3_t org, vec3_t vel, int count)
476 {
477         // bloodcount is used to accumulate counts too small to cause a blood particle
478         static int bloodcount = 0;
479         if (!cl_particles.integer) return;
480         if (!cl_particles_blood.integer) return;
481
482         if (count > 100)
483                 count = 100;
484         bloodcount += count;
485         while(bloodcount >= 10)
486         {
487                 particle(pt_blood, PARTICLE_BILLBOARD, 0x300000, tex_smoke[rand()&7], true, false, 24, 24, 255, 9999, -1, org[0], org[1], org[2], vel[0] + lhrandom(-64, 64), vel[1] + lhrandom(-64, 64), vel[2] + lhrandom(-64, 64), 0, 0, 0, 0, 1.0f, 0);
488                 bloodcount -= 10;
489         }
490 }
491
492 void CL_BloodShower (vec3_t mins, vec3_t maxs, float velspeed, int count)
493 {
494         vec3_t diff, center, velscale;
495         if (!cl_particles.integer) return;
496         if (!cl_particles_bloodshowers.integer) return;
497         if (!cl_particles_blood.integer) return;
498
499         VectorSubtract(maxs, mins, diff);
500         center[0] = (mins[0] + maxs[0]) * 0.5;
501         center[1] = (mins[1] + maxs[1]) * 0.5;
502         center[2] = (mins[2] + maxs[2]) * 0.5;
503         // FIXME: change velspeed back to 2.0x after fixing mod
504         velscale[0] = velspeed * 2.0 / diff[0];
505         velscale[1] = velspeed * 2.0 / diff[1];
506         velscale[2] = velspeed * 2.0 / diff[2];
507
508         while (count--)
509         {
510                 vec3_t org, vel;
511                 org[0] = lhrandom(mins[0], maxs[0]);
512                 org[1] = lhrandom(mins[1], maxs[1]);
513                 org[2] = lhrandom(mins[2], maxs[2]);
514                 vel[0] = (org[0] - center[0]) * velscale[0];
515                 vel[1] = (org[1] - center[1]) * velscale[1];
516                 vel[2] = (org[2] - center[2]) * velscale[2];
517                 particle(pt_blood, PARTICLE_BILLBOARD, 0x300000, tex_smoke[rand()&7], true, false, 24, 24, 255, 9999, -1, org[0], org[1], org[2], vel[0], vel[1], vel[2], 0, 0, 0, 0, 1.0f, 0);
518         }
519 }
520
521 void CL_ParticleCube (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int gravity, int randomvel)
522 {
523         float           t;
524         if (!cl_particles.integer) return;
525         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
526         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
527         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
528
529         while (count--)
530                 particle(gravity ? pt_grav : pt_static, PARTICLE_BILLBOARD, particlepalette[colorbase + (rand()&3)], 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);
531 }
532
533 void CL_ParticleRain (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int type)
534 {
535         vec3_t          vel;
536         float           t, z;
537         if (!cl_particles.integer) return;
538         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
539         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
540         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
541         if (dir[2] < 0) // falling
542         {
543                 t = (maxs[2] - mins[2]) / -dir[2];
544                 z = maxs[2];
545         }
546         else // rising??
547         {
548                 t = (maxs[2] - mins[2]) / dir[2];
549                 z = mins[2];
550         }
551         if (t < 0 || t > 2) // sanity check
552                 t = 2;
553
554         switch(type)
555         {
556         case 0:
557                 count *= 4; // ick, this should be in the mod or maps?
558
559                 while(count--)
560                 {
561                         vel[0] = dir[0] + lhrandom(-16, 16);
562                         vel[1] = dir[1] + lhrandom(-16, 16);
563                         vel[2] = dir[2] + lhrandom(-32, 32);
564                         particle(pt_rain, PARTICLE_UPRIGHT_FACING, particlepalette[colorbase + (rand()&3)], 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);
565                 }
566                 break;
567         case 1:
568                 while(count--)
569                 {
570                         vel[0] = dir[0] + lhrandom(-16, 16);
571                         vel[1] = dir[1] + lhrandom(-16, 16);
572                         vel[2] = dir[2] + lhrandom(-32, 32);
573                         particle(pt_snow, PARTICLE_BILLBOARD, particlepalette[colorbase + (rand()&3)], 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);
574                 }
575                 break;
576         default:
577                 Host_Error("CL_ParticleRain: unknown type %i (0 = rain, 1 = snow)\n", type);
578         }
579 }
580
581 void CL_FlameCube (vec3_t mins, vec3_t maxs, int count)
582 {
583         float           t;
584         if (!cl_particles.integer) return;
585         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
586         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
587         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
588
589         while (count--)
590                 particle(pt_flame, PARTICLE_BILLBOARD, particlepalette[224 + (rand()&15)], tex_particle, false, true, 8, 8, 255, 9999, 1.1, lhrandom(mins[0], maxs[0]), lhrandom(mins[1], maxs[1]), lhrandom(mins[2], maxs[2]), lhrandom(-32, 32), lhrandom(-32, 32), lhrandom(-32, 64), 0, 0, 0, 0, 0.1f, 0);
591 }
592
593 void CL_Flames (vec3_t org, vec3_t vel, int count)
594 {
595         if (!cl_particles.integer) return;
596
597         while (count--)
598                 particle(pt_flame, PARTICLE_BILLBOARD, particlepalette[224 + (rand()&15)], tex_particle, false, true, 8, 8, 255, 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, 0.1f, 0);
599 }
600
601
602
603 /*
604 ===============
605 CL_LavaSplash
606
607 ===============
608 */
609 void CL_LavaSplash (vec3_t origin)
610 {
611         int                     i, j;
612         float           vel;
613         vec3_t          dir, org;
614         if (!cl_particles.integer) return;
615
616         for (i=-128 ; i<128 ; i+=16)
617         {
618                 for (j=-128 ; j<128 ; j+=16)
619                 {
620                         dir[0] = j + lhrandom(0, 8);
621                         dir[1] = i + lhrandom(0, 8);
622                         dir[2] = 256;
623                         org[0] = origin[0] + dir[0];
624                         org[1] = origin[1] + dir[1];
625                         org[2] = origin[2] + lhrandom(0, 64);
626                         vel = lhrandom(50, 120) / VectorLength(dir); // normalize and scale
627                         particle(pt_lavasplash, PARTICLE_BILLBOARD, particlepalette[224 + (rand()&7)], 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);
628                 }
629         }
630 }
631
632 /*
633 ===============
634 CL_TeleportSplash
635
636 ===============
637 */
638 void CL_TeleportSplash (vec3_t org)
639 {
640         int                     i, j, k;
641         if (!cl_particles.integer) return;
642
643         for (i=-16 ; i<16 ; i+=8)
644                 for (j=-16 ; j<16 ; j+=8)
645                         for (k=-24 ; k<32 ; k+=8)
646                                 particle(pt_fade, PARTICLE_BILLBOARD, 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), 0, 0, 0, 0, 0.1f, -512.0f);
647 }
648
649 void CL_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent)
650 {
651         vec3_t          vec, dir, vel;
652         float           len, dec = 0, speed;
653         int                     contents, bubbles;
654         double          t;
655         if (!cl_particles.integer) return;
656
657         VectorSubtract(end, start, dir);
658         VectorNormalize(dir);
659
660         if (type == 0 && host_frametime != 0) // rocket glow
661                 particle(pt_oneframe, PARTICLE_BILLBOARD, 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);
662
663         t = ent->persistent.trail_time;
664         if (t >= cl.time)
665                 return; // no particles to spawn this frame (sparse trail)
666
667         if (t < cl.oldtime)
668                 t = cl.oldtime;
669
670         VectorSubtract (end, start, vec);
671         len = VectorNormalizeLength (vec);
672         if (len <= 0.01f)
673         {
674                 // advance the trail time
675                 ent->persistent.trail_time = cl.time;
676                 return;
677         }
678         speed = len / (cl.time - cl.oldtime);
679         VectorScale(vec, speed, vel);
680
681         // advance into this frame to reach the first puff location
682         dec = t - cl.oldtime;
683         dec *= speed;
684         VectorMA(start, dec, vec, start);
685
686         contents = Mod_PointInLeaf(start, cl.worldmodel)->contents;
687         if (contents == CONTENTS_SKY || contents == CONTENTS_LAVA)
688         {
689                 // advance the trail time
690                 ent->persistent.trail_time = cl.time;
691                 return;
692         }
693
694         bubbles = (contents == CONTENTS_WATER || contents == CONTENTS_SLIME);
695
696         while (t < cl.time)
697         {
698                 switch (type)
699                 {
700                         case 0: // rocket trail
701                                 if (!cl_particles_smoke.integer)
702                                         dec = cl.time - t;
703                                 else if (bubbles && cl_particles_bubbles.integer)
704                                 {
705                                         dec = 0.005f;
706                                         particle(pt_bubble, PARTICLE_BILLBOARD, 0xFFFFFF, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, start[0], start[1], start[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
707                                         particle(pt_bubble, PARTICLE_BILLBOARD, 0xFFFFFF, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, start[0], start[1], start[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
708                                         particle(pt_smoke, PARTICLE_BILLBOARD, 0xFFFFFF, tex_smoke[rand()&7], false, false, 2, 2, 160, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
709                                 }
710                                 else
711                                 {
712                                         dec = 0.005f;
713                                         particle(pt_smoke, PARTICLE_BILLBOARD, 0xC0C0C0, tex_smoke[rand()&7], true, false, 2, 2, 160, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
714                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, start[0], start[1], start[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, 0.1f, 0);
715                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, start[0], start[1], start[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, 0.1f, 0);
716                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, start[0], start[1], start[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, 0.1f, 0);
717                                         //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, start[0], start[1], start[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, 0.1f, 0);
718                                 }
719                                 break;
720
721                         case 1: // grenade trail
722                                 // FIXME: make it gradually stop smoking
723                                 if (!cl_particles_smoke.integer)
724                                         dec = cl.time - t;
725                                 else if (bubbles && cl_particles_bubbles.integer)
726                                 {
727                                         dec = 0.02f;
728                                         particle(pt_bubble, PARTICLE_BILLBOARD, 0xFFFFFF, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, start[0], start[1], start[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
729                                         particle(pt_bubble, PARTICLE_BILLBOARD, 0xFFFFFF, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, start[0], start[1], start[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
730                                         particle(pt_smoke, PARTICLE_BILLBOARD, 0xFFFFFF, tex_smoke[rand()&7], false, false, 2, 2, 160, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
731                                 }
732                                 else
733                                 {
734                                         dec = 0.02f;
735                                         particle(pt_smoke, PARTICLE_BILLBOARD, 0x808080, tex_smoke[rand()&7], true, false, 2, 2, 160, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
736                                 }
737                                 break;
738
739
740                         case 2: // blood
741                                 if (!cl_particles_blood.integer)
742                                         dec = cl.time - t;
743                                 else
744                                 {
745                                         dec = 0.1f;
746                                         particle(pt_blood, PARTICLE_BILLBOARD, 0x300000, tex_smoke[rand()&7], true, false, 24, 24, 255, 9999, -1, start[0], start[1], start[2], vel[0] + lhrandom(-64, 64), vel[1] + lhrandom(-64, 64), vel[2] + lhrandom(-64, 64), 0, 0, 0, 0, 1.0f, 0);
747                                 }
748                                 break;
749
750                         case 4: // slight blood
751                                 if (!cl_particles_blood.integer)
752                                         dec = cl.time - t;
753                                 else
754                                 {
755                                         dec = 0.15f;
756                                         particle(pt_blood, PARTICLE_BILLBOARD, 0x300000, tex_smoke[rand()&7], true, false, 24, 24, 255, 9999, -1, start[0], start[1], start[2], vel[0] + lhrandom(-64, 64), vel[1] + lhrandom(-64, 64), vel[2] + lhrandom(-64, 64), 0, 0, 0, 0, 1.0f, 0);
757                                 }
758                                 break;
759
760                         case 3: // green tracer
761                                 dec = 0.02f;
762                                 particle(pt_fade, PARTICLE_BILLBOARD, 0x373707, tex_smoke[rand()&7], false, false, 4, 4, 255, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
763                                 break;
764
765                         case 5: // flame tracer
766                                 dec = 0.02f;
767                                 particle(pt_fade, PARTICLE_BILLBOARD, 0xCF632B, tex_smoke[rand()&7], false, false, 4, 4, 255, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
768                                 break;
769
770                         case 6: // voor trail
771                                 dec = 0.05f; // sparse trail
772                                 particle(pt_fade, PARTICLE_BILLBOARD, 0x47232B, tex_smoke[rand()&7], false, false, 4, 4, 255, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
773                                 break;
774
775                         case 7: // Nehahra smoke tracer
776                                 if (!cl_particles_smoke.integer)
777                                         dec = cl.time - t;
778                                 else
779                                 {
780                                         dec = 0.14f;
781                                         particle(pt_smoke, PARTICLE_BILLBOARD, 0xC0C0C0, tex_smoke[rand()&7], true, false, 10, 10, 64, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
782                                 }
783                                 break;
784                 }
785
786                 // advance to next time and position
787                 t += dec;
788                 dec *= speed;
789                 VectorMA (start, dec, vec, start);
790         }
791         ent->persistent.trail_time = t;
792 }
793
794 void CL_RocketTrail2 (vec3_t start, vec3_t end, int color, entity_t *ent)
795 {
796         vec3_t          vec;
797         int                     len;
798         if (!cl_particles.integer) return;
799         if (!cl_particles_smoke.integer) return;
800
801         VectorSubtract (end, start, vec);
802         len = (int) (VectorNormalizeLength (vec) * (1.0f / 3.0f));
803         VectorScale(vec, 3, vec);
804         color = particlepalette[color];
805         while (len--)
806         {
807                 particle(pt_smoke, PARTICLE_BILLBOARD, color, tex_particle, false, false, 8, 8, 192, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
808                 VectorAdd (start, vec, start);
809         }
810 }
811
812
813 /*
814 ===============
815 CL_MoveParticles
816 ===============
817 */
818 void CL_MoveParticles (void)
819 {
820         particle_t *p;
821         renderparticle_t *r;
822         int i, activeparticles, maxparticle, j, a, pressureused = false;
823         float gravity, dvel, frametime, f, dist, normal[3], v[3], org[3];
824
825         // LordHavoc: early out condition
826         if (!cl_numparticles)
827         {
828                 r_refdef.numparticles = 0;
829                 return;
830         }
831
832         frametime = cl.time - cl.oldtime;
833         if (!frametime)
834                 return; // if absolutely still, don't update particles
835         gravity = frametime * sv_gravity.value;
836         dvel = 1+4*frametime;
837
838         activeparticles = 0;
839         maxparticle = -1;
840         j = 0;
841         for (i = 0, p = particles, r = r_refdef.particles;i < cl_numparticles;i++, p++)
842         {
843                 if (p->die < cl.time)
844                 {
845                         freeparticles[j++] = p;
846                         continue;
847                 }
848
849                 VectorCopy(p->org, p->oldorg);
850                 VectorMA(p->org, frametime, p->vel, p->org);
851                 if (p->friction)
852                 {
853                         f = 1.0f - (p->friction * frametime);
854                         VectorScale(p->vel, f, p->vel);
855                 }
856                 VectorCopy(p->org, org);
857                 if (p->bounce)
858                 {
859                         if (TraceLine(p->oldorg, p->org, v, normal, 0, true) < 1)
860                         {
861                                 VectorCopy(v, p->org);
862                                 if (p->bounce < 0)
863                                 {
864                                         // assume it's blood (lame, but...)
865                                         R_Stain(v, 48, 64, 24, 24, 48, 192, 48, 48, 48);
866                                         CL_Decal(v, p->tex, p->scalex * cl_particles_size.value, p->color[0] * (1.0f / 255.0f), p->color[1] * (1.0f / 255.0f), p->color[2] * (1.0f / 255.0f), p->alpha * (1.0f / 255.0f));
867                                         p->die = -1;
868                                         freeparticles[j++] = p;
869                                         continue;
870                                 }
871                                 else
872                                 {
873                                         dist = DotProduct(p->vel, normal) * -p->bounce;
874                                         VectorMA(p->vel, dist, normal, p->vel);
875                                         if (DotProduct(p->vel, p->vel) < 0.03)
876                                                 VectorClear(p->vel);
877                                 }
878                         }
879                 }
880
881                 switch (p->type)
882                 {
883                 case pt_static:
884                         break;
885
886                         // LordHavoc: drop-through because of shared code
887                 case pt_blob:
888                         p->vel[2] *= dvel;
889                 case pt_blob2:
890                         p->vel[0] *= dvel;
891                         p->vel[1] *= dvel;
892                         p->alpha -= frametime * 256;
893                         if (p->alpha < 1)
894                                 p->die = -1;
895                         break;
896
897                 case pt_grav:
898                         p->vel[2] -= gravity;
899                         break;
900                 case pt_lavasplash:
901                         p->vel[2] -= gravity * 0.05;
902                         p->alpha -= frametime * 192;
903                         if (p->alpha < 1)
904                                 p->die = -1;
905                         break;
906                 case pt_snow:
907                         if (cl.time > p->time2)
908                         {
909                                 p->time2 = cl.time + (rand() & 3) * 0.1;
910                                 p->vel[0] = (rand()&63)-32 + p->vel2[0];
911                                 p->vel[1] = (rand()&63)-32 + p->vel2[1];
912                                 p->vel[2] = (rand()&63)-32 + p->vel2[2];
913                         }
914                         a = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
915                         if (a != CONTENTS_EMPTY && a != CONTENTS_SKY)
916                         {
917                                 p->die = -1;
918                                 /*
919                                 if (a == CONTENTS_SOLID && Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents == CONTENTS_SOLID)
920                                         break; // still in solid
921                                 p->die = cl.time + 1000;
922                                 p->vel[0] = p->vel[1] = p->vel[2] = 0;
923                                 switch (a)
924                                 {
925                                 case CONTENTS_LAVA:
926                                 case CONTENTS_SLIME:
927                                         p->tex = tex_smoke[rand()&7];
928                                         p->orientation = PARTICLE_BILLBOARD;
929                                         p->type = pt_steam;
930                                         p->alpha = 96;
931                                         p->scalex = 5;
932                                         p->scaley = 5;
933                                         p->vel[2] = 96;
934                                         break;
935                                 case CONTENTS_WATER:
936                                         p->tex = tex_smoke[rand()&7];
937                                         p->orientation = PARTICLE_BILLBOARD;
938                                         p->type = pt_splash;
939                                         p->alpha = 96;
940                                         p->scalex = 5;
941                                         p->scaley = 5;
942                                         p->vel[2] = 96;
943                                         break;
944                                 default: // CONTENTS_SOLID and any others
945                                         TraceLine(p->oldorg, p->org, v, normal, 0, true);
946                                         VectorCopy(v, p->org);
947                                         p->tex = tex_smoke[rand()&7];
948                                         p->orientation = PARTICLE_BILLBOARD;
949                                         p->type = pt_fade;
950                                         p->scalex = 5;
951                                         p->scaley = 5;
952                                         VectorClear(p->vel);
953                                         break;
954                                 }
955                                 */
956                         }
957                         break;
958                 case pt_blood:
959                         p->friction = 1;
960                         a = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
961                         if (a != CONTENTS_EMPTY)
962                         {
963                                 if (a == CONTENTS_WATER || a == CONTENTS_SLIME)
964                                 {
965                                         p->friction = 5;
966                                         p->scalex += frametime * 32.0f;
967                                         p->scaley += frametime * 32.0f;
968                                         p->alpha -= frametime * 128.0f;
969                                         p->vel[2] += gravity * 0.125f;
970                                         if (p->alpha < 1)
971                                                 p->die = -1;
972                                         break;
973                                 }
974                                 else
975                                 {
976                                         p->die = -1;
977                                         break;
978                                 }
979                         }
980                         p->vel[2] -= gravity * 0.5;
981                         break;
982                 case pt_spark:
983                         p->alpha -= frametime * p->time2;
984                         p->vel[2] -= gravity;
985                         if (p->alpha < 1)
986                                 p->die = -1;
987                         else if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents != CONTENTS_EMPTY)
988                                 p->type = pt_underwaterspark;
989                         break;
990                 case pt_underwaterspark:
991                         if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents == CONTENTS_EMPTY)
992                         {
993                                 p->tex = tex_smoke[rand()&7];
994                                 p->orientation = PARTICLE_BILLBOARD;
995                                 p->color[0] = p->color[1] = p->color[2] = 255;
996                                 p->scalex = 8;
997                                 p->scaley = 8;
998                                 p->type = pt_explosionsplash;
999                         }
1000                         else
1001                                 p->vel[2] += gravity * 0.5f;
1002                         p->alpha -= frametime * p->time2;
1003                         if (p->alpha < 1)
1004                                 p->die = -1;
1005                         break;
1006                 case pt_explosionsplash:
1007                         if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents == CONTENTS_EMPTY)
1008                                 p->vel[2] -= gravity;
1009                         else
1010                                 p->alpha = 0;
1011                         p->scalex += frametime * 64.0f;
1012                         p->scaley += frametime * 64.0f;
1013                         p->alpha -= frametime * 1024.0f;
1014                         if (p->alpha < 1)
1015                                 p->die = -1;
1016                         break;
1017                 case pt_fade:
1018                         p->alpha -= frametime * 384;
1019                         if (p->alpha < 1)
1020                                 p->die = -1;
1021                         break;
1022                 case pt_bubble:
1023                         a = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1024                         if (a != CONTENTS_WATER && a != CONTENTS_SLIME)
1025                         {
1026                                 p->tex = tex_smoke[rand()&7];
1027                                 p->orientation = PARTICLE_BILLBOARD;
1028                                 p->type = pt_splashpuff;
1029                                 p->scalex = 4;
1030                                 p->scaley = 4;
1031                                 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1032                                 break;
1033                         }
1034                         p->vel[2] += gravity * 0.25;
1035                         p->vel[0] *= (1 - (frametime * 0.0625));
1036                         p->vel[1] *= (1 - (frametime * 0.0625));
1037                         p->vel[2] *= (1 - (frametime * 0.0625));
1038                         if (cl.time > p->time2)
1039                         {
1040                                 p->time2 = cl.time + lhrandom(0, 0.5);
1041                                 p->vel[0] += lhrandom(-32,32);
1042                                 p->vel[1] += lhrandom(-32,32);
1043                                 p->vel[2] += lhrandom(-32,32);
1044                         }
1045                         p->alpha -= frametime * 256;
1046                         if (p->alpha < 1)
1047                                 p->die = -1;
1048                         break;
1049                 case pt_bulletsmoke:
1050                         p->scalex += frametime * 16;
1051                         p->scaley += frametime * 16;
1052                         p->alpha -= frametime * 1024;
1053                         p->vel[2] += gravity * 0.1;
1054                         if (p->alpha < 1)
1055                                 p->die = -1;
1056                         break;
1057                 case pt_smoke:
1058                         p->scalex += frametime * 24;
1059                         p->scaley += frametime * 24;
1060                         p->alpha -= frametime * 256;
1061                         p->vel[2] += gravity * 0.1;
1062                         if (p->alpha < 1)
1063                                 p->die = -1;
1064                         break;
1065                 case pt_steam:
1066                         p->scalex += frametime * 48;
1067                         p->scaley += frametime * 48;
1068                         p->alpha -= frametime * 512;
1069                         p->vel[2] += gravity * 0.05;
1070                         if (p->alpha < 1)
1071                                 p->die = -1;
1072                         break;
1073                 case pt_splashpuff:
1074                         p->alpha -= frametime * 1024;
1075                         if (p->alpha < 1)
1076                                 p->die = -1;
1077                         break;
1078                 case pt_rain:
1079                         a = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1080                         if (a != CONTENTS_EMPTY && a != CONTENTS_SKY)
1081                                 p->die = -1;
1082                         /*
1083                         f = 0;
1084                         b = Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents;
1085                         VectorCopy(p->oldorg, o);
1086                         while (f < 1)
1087                         {
1088                                 a = b;
1089                                 f = TraceLine(o, p->org, v, normal, a, true);
1090                                 b = traceline_endcontents;
1091                                 if (f < 1 && b != CONTENTS_EMPTY && b != CONTENTS_SKY)
1092                                 {
1093                                         #if 1
1094                                         p->die = -1;
1095                                         #else
1096                                         p->die = cl.time + 1000;
1097                                         p->vel[0] = p->vel[1] = p->vel[2] = 0;
1098                                         VectorCopy(v, p->org);
1099                                         switch (b)
1100                                         {
1101                                         case CONTENTS_LAVA:
1102                                         case CONTENTS_SLIME:
1103                                                 p->tex = tex_smoke[rand()&7];
1104                                                 p->orientation = PARTICLE_BILLBOARD;
1105                                                 p->type = pt_steam;
1106                                                 p->scalex = 3;
1107                                                 p->scaley = 3;
1108                                                 p->vel[2] = 96;
1109                                                 break;
1110                                         default: // water, solid, and anything else
1111                                                 p->tex = tex_rainsplash[0];
1112                                                 p->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
1113                                                 p->time2 = 0;
1114                                                 VectorCopy(normal, p->vel2);
1115                                         //      VectorAdd(p->org, normal, p->org);
1116                                                 p->type = pt_raindropsplash;
1117                                                 p->scalex = 8;
1118                                                 p->scaley = 8;
1119                                                 break;
1120                                         }
1121                                         #endif
1122                                         break;
1123                                 }
1124                         }
1125                         */
1126                         break;
1127                         /*
1128                 case pt_raindropsplash:
1129                         p->time2 += frametime * 64.0f;
1130                         if (p->time2 >= 16.0f)
1131                         {
1132                                 p->die = -1;
1133                                 break;
1134                         }
1135                         p->tex = tex_rainsplash[(int) p->time2];
1136                         p->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
1137                         break;
1138                         */
1139                 case pt_flame:
1140                         p->alpha -= frametime * 512;
1141                         p->vel[2] += gravity;
1142                         if (p->alpha < 16)
1143                                 p->die = -1;
1144                         break;
1145                 case pt_oneframe:
1146                         if (p->time2)
1147                                 p->die = -1;
1148                         p->time2 = 1;
1149                         break;
1150                 default:
1151                         printf("unknown particle type %i\n", p->type);
1152                         p->die = -1;
1153                         break;
1154                 }
1155
1156                 // LordHavoc: immediate removal of unnecessary particles (must be done to ensure compactor below operates properly in all cases)
1157                 if (p->die < cl.time)
1158                         freeparticles[j++] = p;
1159                 else
1160                 {
1161                         maxparticle = i;
1162                         activeparticles++;
1163                         if (p->pressure)
1164                                 pressureused = true;
1165
1166                         // build renderparticle for renderer to use
1167                         r->orientation = p->orientation;
1168                         r->additive = p->additive;
1169                         r->dir[0] = p->vel2[0];
1170                         r->dir[1] = p->vel2[1];
1171                         r->dir[2] = p->vel2[2];
1172                         r->org[0] = p->org[0];
1173                         r->org[1] = p->org[1];
1174                         r->org[2] = p->org[2];
1175                         r->tex = p->tex;
1176                         r->scalex = p->scalex * 0.5f * cl_particles_size.value;
1177                         r->scaley = p->scaley * 0.5f * cl_particles_size.value;
1178                         r->dynlight = p->dynlight;
1179                         r->color[0] = p->color[0] * (1.0f / 255.0f);
1180                         r->color[1] = p->color[1] * (1.0f / 255.0f);
1181                         r->color[2] = p->color[2] * (1.0f / 255.0f);
1182                         r->color[3] = p->alpha * (1.0f / 255.0f);
1183                         r++;
1184                 }
1185         }
1186         r_refdef.numparticles = r - r_refdef.particles;
1187         // fill in gaps to compact the array
1188         i = 0;
1189         while (maxparticle >= activeparticles)
1190         {
1191                 *freeparticles[i++] = particles[maxparticle--];
1192                 while (maxparticle >= activeparticles && particles[maxparticle].die < cl.time)
1193                         maxparticle--;
1194         }
1195         cl_numparticles = activeparticles;
1196
1197         if (pressureused)
1198         {
1199                 activeparticles = 0;
1200                 for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1201                         if (p->pressure)
1202                                 freeparticles[activeparticles++] = p;
1203
1204                 if (activeparticles)
1205                 {
1206                         for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1207                         {
1208                                 for (j = 0;j < activeparticles;j++)
1209                                 {
1210                                         if (freeparticles[j] != p)
1211                                         {
1212                                                 float dist, diff[3];
1213                                                 VectorSubtract(p->org, freeparticles[j]->org, diff);
1214                                                 dist = DotProduct(diff, diff);
1215                                                 if (dist < 4096 && dist >= 1)
1216                                                 {
1217                                                         dist = freeparticles[j]->scalex * 4.0f * frametime / sqrt(dist);
1218                                                         VectorMA(p->vel, dist, diff, p->vel);
1219                                                         //dist = freeparticles[j]->scalex * 4.0f * frametime / dist;
1220                                                         //VectorMA(p->vel, dist, freeparticles[j]->vel, p->vel);
1221                                                 }
1222                                         }
1223                                 }
1224                         }
1225                 }
1226         }
1227 }