hushed unitialized warning on end in cl_particles.c when using MSVC
[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         vec3_t          org;
36         vec3_t          vel;
37         int                     tex;
38         float           die;
39         float           scale;
40         float           alpha; // 0-255
41         float           time2; // used for various things (snow fluttering, for example)
42         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)
43         vec3_t          oldorg;
44         vec3_t          vel2; // used for snow fluttering (base velocity, wind for instance)
45         float           friction; // how much air friction affects this object (objects with a low mass/size ratio tend to get more air friction)
46         float           pressure; // if non-zero, apply pressure to other particles
47         int                     dynlight; // if set the particle will be dynamically lit (if cl_dynamicparticles is on), used for smoke and blood
48         byte            color[4];
49 }
50 particle_t;
51
52 static int particlepalette[256] =
53 {
54         0x000000,0x0f0f0f,0x1f1f1f,0x2f2f2f,0x3f3f3f,0x4b4b4b,0x5b5b5b,0x6b6b6b,
55         0x7b7b7b,0x8b8b8b,0x9b9b9b,0xababab,0xbbbbbb,0xcbcbcb,0xdbdbdb,0xebebeb,
56         0x0f0b07,0x170f0b,0x1f170b,0x271b0f,0x2f2313,0x372b17,0x3f2f17,0x4b371b,
57         0x533b1b,0x5b431f,0x634b1f,0x6b531f,0x73571f,0x7b5f23,0x836723,0x8f6f23,
58         0x0b0b0f,0x13131b,0x1b1b27,0x272733,0x2f2f3f,0x37374b,0x3f3f57,0x474767,
59         0x4f4f73,0x5b5b7f,0x63638b,0x6b6b97,0x7373a3,0x7b7baf,0x8383bb,0x8b8bcb,
60         0x000000,0x070700,0x0b0b00,0x131300,0x1b1b00,0x232300,0x2b2b07,0x2f2f07,
61         0x373707,0x3f3f07,0x474707,0x4b4b0b,0x53530b,0x5b5b0b,0x63630b,0x6b6b0f,
62         0x070000,0x0f0000,0x170000,0x1f0000,0x270000,0x2f0000,0x370000,0x3f0000,
63         0x470000,0x4f0000,0x570000,0x5f0000,0x670000,0x6f0000,0x770000,0x7f0000,
64         0x131300,0x1b1b00,0x232300,0x2f2b00,0x372f00,0x433700,0x4b3b07,0x574307,
65         0x5f4707,0x6b4b0b,0x77530f,0x835713,0x8b5b13,0x975f1b,0xa3631f,0xaf6723,
66         0x231307,0x2f170b,0x3b1f0f,0x4b2313,0x572b17,0x632f1f,0x733723,0x7f3b2b,
67         0x8f4333,0x9f4f33,0xaf632f,0xbf772f,0xcf8f2b,0xdfab27,0xefcb1f,0xfff31b,
68         0x0b0700,0x1b1300,0x2b230f,0x372b13,0x47331b,0x533723,0x633f2b,0x6f4733,
69         0x7f533f,0x8b5f47,0x9b6b53,0xa77b5f,0xb7876b,0xc3937b,0xd3a38b,0xe3b397,
70         0xab8ba3,0x9f7f97,0x937387,0x8b677b,0x7f5b6f,0x775363,0x6b4b57,0x5f3f4b,
71         0x573743,0x4b2f37,0x43272f,0x371f23,0x2b171b,0x231313,0x170b0b,0x0f0707,
72         0xbb739f,0xaf6b8f,0xa35f83,0x975777,0x8b4f6b,0x7f4b5f,0x734353,0x6b3b4b,
73         0x5f333f,0x532b37,0x47232b,0x3b1f23,0x2f171b,0x231313,0x170b0b,0x0f0707,
74         0xdbc3bb,0xcbb3a7,0xbfa39b,0xaf978b,0xa3877b,0x977b6f,0x876f5f,0x7b6353,
75         0x6b5747,0x5f4b3b,0x533f33,0x433327,0x372b1f,0x271f17,0x1b130f,0x0f0b07,
76         0x6f837b,0x677b6f,0x5f7367,0x576b5f,0x4f6357,0x475b4f,0x3f5347,0x374b3f,
77         0x2f4337,0x2b3b2f,0x233327,0x1f2b1f,0x172317,0x0f1b13,0x0b130b,0x070b07,
78         0xfff31b,0xefdf17,0xdbcb13,0xcbb70f,0xbba70f,0xab970b,0x9b8307,0x8b7307,
79         0x7b6307,0x6b5300,0x5b4700,0x4b3700,0x3b2b00,0x2b1f00,0x1b0f00,0x0b0700,
80         0x0000ff,0x0b0bef,0x1313df,0x1b1bcf,0x2323bf,0x2b2baf,0x2f2f9f,0x2f2f8f,
81         0x2f2f7f,0x2f2f6f,0x2f2f5f,0x2b2b4f,0x23233f,0x1b1b2f,0x13131f,0x0b0b0f,
82         0x2b0000,0x3b0000,0x4b0700,0x5f0700,0x6f0f00,0x7f1707,0x931f07,0xa3270b,
83         0xb7330f,0xc34b1b,0xcf632b,0xdb7f3b,0xe3974f,0xe7ab5f,0xefbf77,0xf7d38b,
84         0xa77b3b,0xb79b37,0xc7c337,0xe7e357,0x7fbfff,0xabe7ff,0xd7ffff,0x670000,
85         0x8b0000,0xb30000,0xd70000,0xff0000,0xfff393,0xfff7c7,0xffffff,0x9f5b53
86 };
87
88 static int explosparkramp[8] = {0x4b0700, 0x6f0f00, 0x931f07, 0xb7330f, 0xcf632b, 0xe3974f, 0xffe7b5, 0xffffff};
89 //static int explounderwatersparkramp[8] = {0x00074b, 0x000f6f, 0x071f93, 0x0f33b7, 0x2b63cf, 0x4f97e3, 0xb5e7ff, 0xffffff};
90
91 // these must match r_part.c's textures
92 static const int tex_smoke[8] = {0, 1, 2, 3, 4, 5, 6, 7};
93 static const int tex_bullethole[8] = {8, 9, 10, 11, 12, 13, 14, 15};
94 static const int tex_rainsplash[16] = {16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31};
95 static const int tex_particle = 32;
96 static const int tex_rain = 33;
97 static const int tex_bubble = 34;
98 static const int tex_rocketglow = 35;
99
100 static int                      cl_maxparticles;
101 static int                      cl_numparticles;
102 static particle_t       *particles;
103 static particle_t       **freeparticles; // list used only in compacting particles array
104 static renderparticle_t *cl_renderparticles;
105
106 static cvar_t cl_particles = {CVAR_SAVE, "cl_particles", "1"};
107 static cvar_t cl_particles_size = {CVAR_SAVE, "cl_particles_size", "1"};
108 static cvar_t cl_particles_bloodshowers = {CVAR_SAVE, "cl_particles_bloodshowers", "1"};
109 static cvar_t cl_particles_blood = {CVAR_SAVE, "cl_particles_blood", "1"};
110 static cvar_t cl_particles_smoke = {CVAR_SAVE, "cl_particles_smoke", "1"};
111 static cvar_t cl_particles_sparks = {CVAR_SAVE, "cl_particles_sparks", "1"};
112 static cvar_t cl_particles_bubbles = {CVAR_SAVE, "cl_particles_bubbles", "1"};
113 static cvar_t cl_particles_explosions = {CVAR_SAVE, "cl_particles_explosions", "0"};
114
115 static mempool_t *cl_part_mempool;
116
117 void CL_Particles_Clear(void)
118 {
119         cl_numparticles = 0;
120 }
121
122 /*
123 ===============
124 CL_InitParticles
125 ===============
126 */
127 void CL_ReadPointFile_f (void);
128 void CL_Particles_Init (void)
129 {
130         int             i;
131
132         i = COM_CheckParm ("-particles");
133
134         if (i)
135         {
136                 cl_maxparticles = (int)(atoi(com_argv[i+1]));
137                 if (cl_maxparticles < ABSOLUTE_MIN_PARTICLES)
138                         cl_maxparticles = ABSOLUTE_MIN_PARTICLES;
139         }
140         else
141                 cl_maxparticles = MAX_PARTICLES;
142
143         Cmd_AddCommand ("pointfile", CL_ReadPointFile_f);
144
145         Cvar_RegisterVariable (&cl_particles);
146         Cvar_RegisterVariable (&cl_particles_size);
147         Cvar_RegisterVariable (&cl_particles_bloodshowers);
148         Cvar_RegisterVariable (&cl_particles_blood);
149         Cvar_RegisterVariable (&cl_particles_smoke);
150         Cvar_RegisterVariable (&cl_particles_sparks);
151         Cvar_RegisterVariable (&cl_particles_bubbles);
152         Cvar_RegisterVariable (&cl_particles_explosions);
153
154         cl_part_mempool = Mem_AllocPool("CL_Part");
155         particles = (particle_t *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t));
156         freeparticles = (void *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t *));
157         cl_numparticles = 0;
158
159         // FIXME: r_refdef stuff should be allocated somewhere else?
160         r_refdef.particles = cl_renderparticles = Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(renderparticle_t));
161 }
162
163 #define particle(ptype, pcolor, ptex, plight, pscale, palpha, ptime, pbounce, px, py, pz, pvx, pvy, pvz, ptime2, pvx2, pvy2, pvz2, pfriction, ppressure)\
164 {\
165         particle_t      *part;\
166         int tempcolor;\
167         if (cl_numparticles >= cl_maxparticles)\
168                 return;\
169         part = &particles[cl_numparticles++];\
170         part->type = (ptype);\
171         tempcolor = (pcolor);\
172         part->color[0] = ((tempcolor) >> 16) & 0xFF;\
173         part->color[1] = ((tempcolor) >> 8) & 0xFF;\
174         part->color[2] = (tempcolor) & 0xFF;\
175         part->color[3] = 0xFF;\
176         part->tex = (ptex);\
177         part->dynlight = (plight);\
178         part->scale = (pscale);\
179         part->alpha = (palpha);\
180         part->die = cl.time + (ptime);\
181         part->bounce = (pbounce);\
182         part->org[0] = (px);\
183         part->org[1] = (py);\
184         part->org[2] = (pz);\
185         part->vel[0] = (pvx);\
186         part->vel[1] = (pvy);\
187         part->vel[2] = (pvz);\
188         part->time2 = (ptime2);\
189         part->vel2[0] = (pvx2);\
190         part->vel2[1] = (pvy2);\
191         part->vel2[2] = (pvz2);\
192         part->friction = (pfriction);\
193         part->pressure = (ppressure);\
194 }
195
196 /*
197 ===============
198 CL_EntityParticles
199 ===============
200 */
201 void CL_EntityParticles (entity_t *ent)
202 {
203         int                     i;
204         float           angle;
205         float           sp, sy, cp, cy;
206         vec3_t          forward;
207         float           dist;
208         float           beamlength;
209         static vec3_t avelocities[NUMVERTEXNORMALS];
210         if (!cl_particles.integer) return;
211
212         dist = 64;
213         beamlength = 16;
214
215         if (!avelocities[0][0])
216                 for (i=0 ; i<NUMVERTEXNORMALS*3 ; i++)
217                         avelocities[0][i] = (rand()&255) * 0.01;
218
219         for (i=0 ; i<NUMVERTEXNORMALS ; i++)
220         {
221                 angle = cl.time * avelocities[i][0];
222                 sy = sin(angle);
223                 cy = cos(angle);
224                 angle = cl.time * avelocities[i][1];
225                 sp = sin(angle);
226                 cp = cos(angle);
227
228                 forward[0] = cp*cy;
229                 forward[1] = cp*sy;
230                 forward[2] = -sp;
231
232                 particle(pt_oneframe, particlepalette[0x6f], tex_particle, false, 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);
233         }
234 }
235
236
237 void CL_ReadPointFile_f (void)
238 {
239         vec3_t  org;
240         int             r, c;
241         char    *pointfile, *pointfilepos, *t, tchar;
242
243         pointfile = COM_LoadFile(va("maps/%s.pts", sv.name), true);
244         if (!pointfile)
245         {
246                 Con_Printf ("couldn't open %s.pts\n", sv.name);
247                 return;
248         }
249
250         Con_Printf ("Reading %s.pts...\n", sv.name);
251         c = 0;
252         pointfilepos = pointfile;
253         while (*pointfilepos)
254         {
255                 while (*pointfilepos == '\n' || *pointfilepos == '\r')
256                         pointfilepos++;
257                 if (!*pointfilepos)
258                         break;
259                 t = pointfilepos;
260                 while (*t && *t != '\n' && *t != '\r')
261                         t++;
262                 tchar = *t;
263                 *t = 0;
264                 r = sscanf (pointfilepos,"%f %f %f", &org[0], &org[1], &org[2]);
265                 *t = tchar;
266                 pointfilepos = t;
267                 if (r != 3)
268                         break;
269                 c++;
270
271                 if (cl_numparticles >= cl_maxparticles)
272                 {
273                         Con_Printf ("Not enough free particles\n");
274                         break;
275                 }
276                 particle(pt_static, particlepalette[(-c)&15], tex_particle, false, 2, 255, 99999, 0, org[0], org[1], org[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
277         }
278
279         Mem_Free(pointfile);
280         Con_Printf ("%i points read\n", c);
281 }
282
283 /*
284 ===============
285 CL_ParseParticleEffect
286
287 Parse an effect out of the server message
288 ===============
289 */
290 void CL_ParseParticleEffect (void)
291 {
292         vec3_t          org, dir;
293         int                     i, count, msgcount, color;
294
295         for (i=0 ; i<3 ; i++)
296                 org[i] = MSG_ReadCoord ();
297         for (i=0 ; i<3 ; i++)
298                 dir[i] = MSG_ReadChar () * (1.0/16);
299         msgcount = MSG_ReadByte ();
300         color = MSG_ReadByte ();
301
302         if (msgcount == 255)
303                 count = 1024;
304         else
305                 count = msgcount;
306
307         CL_RunParticleEffect (org, dir, color, count);
308 }
309
310 /*
311 ===============
312 CL_ParticleExplosion
313
314 ===============
315 */
316 void CL_ParticleExplosion (vec3_t org, int smoke)
317 {
318         int i, j;
319         float f;
320         vec3_t v, end, ang;
321         byte noise1[32*32], noise2[32*32];
322
323         VectorClear(end); // hush MSVC
324         if (cl_particles.integer && cl_particles_explosions.integer)
325         {
326                 i = Mod_PointInLeaf(org, cl.worldmodel)->contents;
327                 if (i == CONTENTS_SLIME || i == CONTENTS_WATER)
328                 {
329                         for (i = 0;i < 128;i++)
330                                 particle(pt_bubble, 0xFFFFFF, tex_bubble, false, lhrandom(1, 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);
331
332                         ang[2] = lhrandom(0, 360);
333                         fractalnoise(noise1, 32, 4);
334                         fractalnoise(noise2, 32, 8);
335                         for (i = 0;i < 32;i++)
336                         {
337                                 for (j = 0;j < 32;j++)
338                                 {
339                                         VectorRandom(v);
340                                         VectorMA(org, 16, v, v);
341                                         TraceLine(org, v, end, NULL, 0);
342                                         ang[0] = (j + 0.5f) * (360.0f / 32.0f);
343                                         ang[1] = (i + 0.5f) * (360.0f / 32.0f);
344                                         AngleVectors(ang, v, NULL, NULL);
345                                         f = noise1[j*32+i] * 1.5f;
346                                         VectorScale(v, f, v);
347                                         particle(pt_underwaterspark, noise2[j*32+i] * 0x010101, tex_smoke[rand()&7], false, 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);
348                                         VectorScale(v, 0.75, v);
349                                         particle(pt_underwaterspark, explosparkramp[(noise2[j*32+i] >> 5)], tex_particle, false, 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);
350                                 }
351                         }
352                 }
353                 else
354                 {
355                         ang[2] = lhrandom(0, 360);
356                         fractalnoise(noise1, 32, 4);
357                         fractalnoise(noise2, 32, 8);
358                         for (i = 0;i < 32;i++)
359                         {
360                                 for (j = 0;j < 32;j++)
361                                 {
362                                         VectorRandom(v);
363                                         VectorMA(org, 16, v, v);
364                                         TraceLine(org, v, end, NULL, 0);
365                                         ang[0] = (j + 0.5f) * (360.0f / 32.0f);
366                                         ang[1] = (i + 0.5f) * (360.0f / 32.0f);
367                                         AngleVectors(ang, v, NULL, NULL);
368                                         f = noise1[j*32+i] * 1.5f;
369                                         VectorScale(v, f, v);
370                                         particle(pt_spark, noise2[j*32+i] * 0x010101, tex_smoke[rand()&7], false, 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);
371                                         VectorScale(v, 0.75, v);
372                                         particle(pt_spark, explosparkramp[(noise2[j*32+i] >> 5)], tex_particle, false, 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);
373                                 //      VectorRandom(v);
374                                 //      VectorScale(v, 384, v);
375                                 //      particle(pt_spark, explosparkramp[rand()&7], tex_particle, false, 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);
376                                 }
377                         }
378                 }
379         }
380         else
381         {
382                 R_NewExplosion(org);
383
384                 for (i = 0;i < 256;i++)
385                 {
386                         VectorRandom(v);
387                         particle(pt_spark, explosparkramp[rand()&7], tex_particle, false, 2, lhrandom(16, 255), 9999, 1.5, end[0], end[1], end[2], v[0] * 384.0f, v[1] * 384.0f, v[2] * 384.0f + 160.0f, 512.0f, 0, 0, 0, 2, 0);
388                 }
389         }
390 }
391
392 /*
393 ===============
394 CL_ParticleExplosion2
395
396 ===============
397 */
398 void CL_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength)
399 {
400         int                     i;
401         if (!cl_particles.integer) return;
402
403         for (i = 0;i < 512;i++)
404                 particle(pt_fade, particlepalette[colorStart + (i % colorLength)], tex_particle, false, 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);
405 }
406
407 /*
408 ===============
409 CL_BlobExplosion
410
411 ===============
412 */
413 void CL_BlobExplosion (vec3_t org)
414 {
415         int                     i;
416         if (!cl_particles.integer) return;
417
418         for (i = 0;i < 256;i++)
419                 particle(pt_blob , particlepalette[ 66+(rand()%6)], tex_particle, false, 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, particlepalette[150+(rand()%6)], tex_particle, false, 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, particlepalette[color + (rand()&7)], tex_particle, false, 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         CL_Decal(org, tex_bullethole[rand()&7], 16 * cl_particles_size.value, 0, 0, 0, 1);
454
455         // smoke puff
456         if (cl_particles_smoke.integer)
457                 particle(pt_bulletsmoke, 0xA0A0A0, tex_smoke[rand()&7], true, 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);
458
459         if (cl_particles_sparks.integer)
460         {
461                 // sparks
462                 while(count--)
463                         particle(pt_spark, particlepalette[0x68 + (rand() & 7)], tex_particle, false, 1, lhrandom(0, 255), 9999, 1.5, org[0], org[1], org[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(0, 128), 512.0f, 0, 0, 0, 0.2f, 0);
464         }
465 }
466
467 void CL_BloodPuff (vec3_t org, vec3_t vel, int count)
468 {
469         // bloodcount is used to accumulate counts too small to cause a blood particle
470         static int bloodcount = 0;
471         if (!cl_particles.integer) return;
472         if (!cl_particles_blood.integer) return;
473
474         if (count > 100)
475                 count = 100;
476         bloodcount += count;
477         while(bloodcount >= 10)
478         {
479                 particle(pt_blood, 0x300000, tex_smoke[rand()&7], true, 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);
480                 bloodcount -= 10;
481         }
482 }
483
484 void CL_BloodShower (vec3_t mins, vec3_t maxs, float velspeed, int count)
485 {
486         vec3_t diff, center, velscale;
487         if (!cl_particles.integer) return;
488         if (!cl_particles_bloodshowers.integer) return;
489         if (!cl_particles_blood.integer) return;
490
491         VectorSubtract(maxs, mins, diff);
492         center[0] = (mins[0] + maxs[0]) * 0.5;
493         center[1] = (mins[1] + maxs[1]) * 0.5;
494         center[2] = (mins[2] + maxs[2]) * 0.5;
495         // FIXME: change velspeed back to 2.0x after fixing mod
496         velscale[0] = velspeed * 2.0 / diff[0];
497         velscale[1] = velspeed * 2.0 / diff[1];
498         velscale[2] = velspeed * 2.0 / diff[2];
499
500         while (count--)
501         {
502                 vec3_t org, vel;
503                 org[0] = lhrandom(mins[0], maxs[0]);
504                 org[1] = lhrandom(mins[1], maxs[1]);
505                 org[2] = lhrandom(mins[2], maxs[2]);
506                 vel[0] = (org[0] - center[0]) * velscale[0];
507                 vel[1] = (org[1] - center[1]) * velscale[1];
508                 vel[2] = (org[2] - center[2]) * velscale[2];
509                 particle(pt_blood, 0x300000, tex_smoke[rand()&7], true, 24, 255, 9999, -1, org[0], org[1], org[2], vel[0], vel[1], vel[2], 0, 0, 0, 0, 1.0f, 0);
510         }
511 }
512
513 void CL_ParticleCube (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int gravity, int randomvel)
514 {
515         float           t;
516         if (!cl_particles.integer) return;
517         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
518         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
519         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
520
521         while (count--)
522                 particle(gravity ? pt_grav : pt_static, particlepalette[colorbase + (rand()&3)], tex_particle, false, 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);
523 }
524
525 void CL_ParticleRain (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int type)
526 {
527         vec3_t          vel;
528         float           t, z;
529         if (!cl_particles.integer) return;
530         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
531         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
532         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
533         if (dir[2] < 0) // falling
534         {
535                 t = (maxs[2] - mins[2]) / -dir[2];
536                 z = maxs[2];
537         }
538         else // rising??
539         {
540                 t = (maxs[2] - mins[2]) / dir[2];
541                 z = mins[2];
542         }
543         if (t < 0 || t > 2) // sanity check
544                 t = 2;
545
546         switch(type)
547         {
548         case 0:
549                 while(count--)
550                 {
551                         vel[0] = dir[0] + lhrandom(-16, 16);
552                         vel[1] = dir[1] + lhrandom(-16, 16);
553                         vel[2] = dir[2] + lhrandom(-32, 32);
554                         particle(pt_rain, particlepalette[colorbase + (rand()&3)], tex_rain, true, 3, 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);
555                 }
556                 break;
557         case 1:
558                 while(count--)
559                 {
560                         vel[0] = dir[0] + lhrandom(-16, 16);
561                         vel[1] = dir[1] + lhrandom(-16, 16);
562                         vel[2] = dir[2] + lhrandom(-32, 32);
563                         particle(pt_snow, particlepalette[colorbase + (rand()&3)], tex_particle, false, 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);
564                 }
565                 break;
566         default:
567                 Host_Error("CL_ParticleRain: unknown type %i (0 = rain, 1 = snow)\n", type);
568         }
569 }
570
571 void CL_FlameCube (vec3_t mins, vec3_t maxs, int count)
572 {
573         float           t;
574         if (!cl_particles.integer) return;
575         if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
576         if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
577         if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
578
579         while (count--)
580                 particle(pt_flame, particlepalette[224 + (rand()&15)], tex_particle, false, 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);
581 }
582
583 void CL_Flames (vec3_t org, vec3_t vel, int count)
584 {
585         if (!cl_particles.integer) return;
586
587         while (count--)
588                 particle(pt_flame, particlepalette[224 + (rand()&15)], tex_particle, false, 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);
589 }
590
591
592
593 /*
594 ===============
595 CL_LavaSplash
596
597 ===============
598 */
599 void CL_LavaSplash (vec3_t origin)
600 {
601         int                     i, j;
602         float           vel;
603         vec3_t          dir, org;
604         if (!cl_particles.integer) return;
605
606         for (i=-128 ; i<128 ; i+=16)
607         {
608                 for (j=-128 ; j<128 ; j+=16)
609                 {
610                         dir[0] = j + lhrandom(0, 8);
611                         dir[1] = i + lhrandom(0, 8);
612                         dir[2] = 256;
613                         org[0] = origin[0] + dir[0];
614                         org[1] = origin[1] + dir[1];
615                         org[2] = origin[2] + lhrandom(0, 64);
616                         vel = lhrandom(50, 120) / VectorLength(dir); // normalize and scale
617                         particle(pt_lavasplash, particlepalette[224 + (rand()&7)], tex_particle, false, 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);
618                 }
619         }
620 }
621
622 /*
623 ===============
624 CL_TeleportSplash
625
626 ===============
627 */
628 void CL_TeleportSplash (vec3_t org)
629 {
630         int                     i, j, k;
631         if (!cl_particles.integer) return;
632
633         for (i=-16 ; i<16 ; i+=8)
634                 for (j=-16 ; j<16 ; j+=8)
635                         for (k=-24 ; k<32 ; k+=8)
636                                 particle(pt_fade, 0xFFFFFF, tex_particle, false, 1, 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);
637 }
638
639 void CL_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent)
640 {
641         vec3_t          vec, dir, vel;
642         float           len, dec = 0, speed;
643         int                     contents, bubbles;
644         double          t;
645         if (!cl_particles.integer) return;
646
647         VectorSubtract(end, start, dir);
648         VectorNormalize(dir);
649
650         if (type == 0 && host_frametime != 0) // rocket glow
651                 particle(pt_oneframe, 0xFFFFFF, tex_rocketglow, false, 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);
652
653         t = ent->persistent.trail_time;
654         if (t >= cl.time)
655                 return; // no particles to spawn this frame (sparse trail)
656
657         if (t < cl.oldtime)
658                 t = cl.oldtime;
659
660         VectorSubtract (end, start, vec);
661         len = VectorNormalizeLength (vec);
662         if (len <= 0.01f)
663         {
664                 // advance the trail time
665                 ent->persistent.trail_time = cl.time;
666                 return;
667         }
668         speed = len / (cl.time - cl.oldtime);
669         VectorScale(vec, speed, vel);
670
671         // advance into this frame to reach the first puff location
672         dec = t - cl.oldtime;
673         dec *= speed;
674         VectorMA(start, dec, vec, start);
675
676         contents = Mod_PointInLeaf(start, cl.worldmodel)->contents;
677         if (contents == CONTENTS_SKY || contents == CONTENTS_LAVA)
678         {
679                 // advance the trail time
680                 ent->persistent.trail_time = cl.time;
681                 return;
682         }
683
684         bubbles = (contents == CONTENTS_WATER || contents == CONTENTS_SLIME);
685
686         while (t < cl.time)
687         {
688                 switch (type)
689                 {
690                         case 0: // rocket trail
691                                 if (!cl_particles_smoke.integer)
692                                         dec = cl.time - t;
693                                 else if (bubbles && cl_particles_bubbles.integer)
694                                 {
695                                         dec = 0.005f;
696                                         particle(pt_bubble, 0xFFFFFF, tex_bubble, false, lhrandom(1, 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);
697                                         particle(pt_bubble, 0xFFFFFF, tex_bubble, false, lhrandom(1, 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);
698                                         particle(pt_smoke, 0xFFFFFF, tex_smoke[rand()&7], false, 2, 160, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
699                                 }
700                                 else
701                                 {
702                                         dec = 0.005f;
703                                         particle(pt_smoke, 0xC0C0C0, tex_smoke[rand()&7], true, 2, 160, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
704                                         //particle(pt_spark, particlepalette[0x68 + (rand() & 7)], tex_particle, false, 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);
705                                         //particle(pt_spark, particlepalette[0x68 + (rand() & 7)], tex_particle, false, 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);
706                                         //particle(pt_spark, particlepalette[0x68 + (rand() & 7)], tex_particle, false, 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);
707                                         //particle(pt_spark, particlepalette[0x68 + (rand() & 7)], tex_particle, false, 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);
708                                 }
709                                 break;
710
711                         case 1: // grenade trail
712                                 // FIXME: make it gradually stop smoking
713                                 if (!cl_particles_smoke.integer)
714                                         dec = cl.time - t;
715                                 else if (bubbles && cl_particles_bubbles.integer)
716                                 {
717                                         dec = 0.02f;
718                                         particle(pt_bubble, 0xFFFFFF, tex_bubble, false, lhrandom(1, 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);
719                                         particle(pt_bubble, 0xFFFFFF, tex_bubble, false, lhrandom(1, 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);
720                                         particle(pt_smoke, 0xFFFFFF, tex_smoke[rand()&7], false, 2, 160, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
721                                 }
722                                 else
723                                 {
724                                         dec = 0.02f;
725                                         particle(pt_smoke, 0x808080, tex_smoke[rand()&7], true, 2, 160, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
726                                 }
727                                 break;
728
729
730                         case 2: // blood
731                                 if (!cl_particles_blood.integer)
732                                         dec = cl.time - t;
733                                 else
734                                 {
735                                         dec = 0.1f;
736                                         particle(pt_blood, 0x300000, tex_smoke[rand()&7], true, 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);
737                                 }
738                                 break;
739
740                         case 4: // slight blood
741                                 if (!cl_particles_blood.integer)
742                                         dec = cl.time - t;
743                                 else
744                                 {
745                                         dec = 0.15f;
746                                         particle(pt_blood, 0x300000, tex_smoke[rand()&7], true, 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 3: // green tracer
751                                 dec = 0.02f;
752                                 particle(pt_fade, 0x373707, tex_smoke[rand()&7], false, 4, 255, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
753                                 break;
754
755                         case 5: // flame tracer
756                                 dec = 0.02f;
757                                 particle(pt_fade, 0xCF632B, tex_smoke[rand()&7], false, 4, 255, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
758                                 break;
759
760                         case 6: // voor trail
761                                 dec = 0.05f; // sparse trail
762                                 particle(pt_fade, 0x47232B, tex_smoke[rand()&7], false, 4, 255, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
763                                 break;
764
765                         case 7: // Nehahra smoke tracer
766                                 if (!cl_particles_smoke.integer)
767                                         dec = cl.time - t;
768                                 else
769                                 {
770                                         dec = 0.14f;
771                                         particle(pt_smoke, 0xC0C0C0, tex_smoke[rand()&7], true, 10, 64, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
772                                 }
773                                 break;
774                 }
775
776                 // advance to next time and position
777                 t += dec;
778                 dec *= speed;
779                 VectorMA (start, dec, vec, start);
780         }
781         ent->persistent.trail_time = t;
782 }
783
784 void CL_RocketTrail2 (vec3_t start, vec3_t end, int color, entity_t *ent)
785 {
786         vec3_t          vec;
787         int                     len;
788         if (!cl_particles.integer) return;
789         if (!cl_particles_smoke.integer) return;
790
791         VectorSubtract (end, start, vec);
792         len = (int) (VectorNormalizeLength (vec) * (1.0f / 3.0f));
793         VectorScale(vec, 3, vec);
794         color = particlepalette[color];
795         while (len--)
796         {
797                 particle(pt_smoke, color, tex_particle, false, 8, 192, 9999, 0, start[0], start[1], start[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
798                 VectorAdd (start, vec, start);
799         }
800 }
801
802
803 /*
804 ===============
805 CL_MoveParticles
806 ===============
807 */
808 void CL_MoveParticles (void)
809 {
810         particle_t *p;
811         renderparticle_t *r;
812         int i, activeparticles, maxparticle, j, a, b, pressureused = false;
813         float gravity, dvel, frametime, f, dist, normal[3], v[3], org[3], o[3];
814
815         // LordHavoc: early out condition
816         if (!cl_numparticles)
817                 return;
818
819         frametime = cl.time - cl.oldtime;
820         if (!frametime)
821                 return; // if absolutely still, don't update particles
822         gravity = frametime * sv_gravity.value;
823         dvel = 1+4*frametime;
824
825         activeparticles = 0;
826         maxparticle = -1;
827         j = 0;
828         for (i = 0, p = particles, r = r_refdef.particles;i < cl_numparticles;i++, p++)
829         {
830                 if (p->die < cl.time)
831                 {
832                         freeparticles[j++] = p;
833                         continue;
834                 }
835
836                 VectorCopy(p->org, p->oldorg);
837                 VectorMA(p->org, frametime, p->vel, p->org);
838                 if (p->friction)
839                 {
840                         f = 1.0f - (p->friction * frametime);
841                         VectorScale(p->vel, f, p->vel);
842                 }
843                 VectorCopy(p->org, org);
844                 if (p->bounce)
845                 {
846                         if (TraceLine(p->oldorg, p->org, v, normal, 0) < 1)
847                         {
848                                 VectorCopy(v, p->org);
849                                 if (p->bounce < 0)
850                                 {
851                                         CL_Decal(v, p->tex, p->scale * 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));
852                                         p->die = -1;
853                                         freeparticles[j++] = p;
854                                         continue;
855                                 }
856                                 else
857                                 {
858                                         dist = DotProduct(p->vel, normal) * -p->bounce;
859                                         VectorMA(p->vel, dist, normal, p->vel);
860                                         if (DotProduct(p->vel, p->vel) < 0.03)
861                                                 VectorClear(p->vel);
862                                 }
863                         }
864                 }
865
866                 switch (p->type)
867                 {
868                 case pt_static:
869                         break;
870
871                         // LordHavoc: drop-through because of shared code
872                 case pt_blob:
873                         p->vel[2] *= dvel;
874                 case pt_blob2:
875                         p->vel[0] *= dvel;
876                         p->vel[1] *= dvel;
877                         p->alpha -= frametime * 256;
878                         if (p->alpha < 1)
879                                 p->die = -1;
880                         break;
881
882                 case pt_grav:
883                         p->vel[2] -= gravity;
884                         break;
885                 case pt_lavasplash:
886                         p->vel[2] -= gravity * 0.05;
887                         p->alpha -= frametime * 192;
888                         if (p->alpha < 1)
889                                 p->die = -1;
890                         break;
891                 case pt_snow:
892                         if (cl.time > p->time2)
893                         {
894                                 p->time2 = cl.time + (rand() & 3) * 0.1;
895                                 p->vel[0] = (rand()&63)-32 + p->vel2[0];
896                                 p->vel[1] = (rand()&63)-32 + p->vel2[1];
897                                 p->vel[2] = (rand()&63)-32 + p->vel2[2];
898                         }
899                         a = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
900                         if (a != CONTENTS_EMPTY && a != CONTENTS_SKY)
901                         {
902                                 vec3_t normal;
903                                 if (a == CONTENTS_SOLID && Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents == CONTENTS_SOLID)
904                                         break; // still in solid
905                                 p->die = cl.time + 1000;
906                                 p->vel[0] = p->vel[1] = p->vel[2] = 0;
907                                 switch (a)
908                                 {
909                                 case CONTENTS_LAVA:
910                                 case CONTENTS_SLIME:
911                                         p->tex = tex_smoke[rand()&7];
912                                         p->type = pt_steam;
913                                         p->alpha = 96;
914                                         p->scale = 5;
915                                         p->vel[2] = 96;
916                                         break;
917                                 case CONTENTS_WATER:
918                                         p->tex = tex_smoke[rand()&7];
919                                         p->type = pt_splash;
920                                         p->alpha = 96;
921                                         p->scale = 5;
922                                         p->vel[2] = 96;
923                                         break;
924                                 default: // CONTENTS_SOLID and any others
925                                         TraceLine(p->oldorg, p->org, v, normal, 0);
926                                         VectorCopy(v, p->org);
927                                         p->tex = tex_smoke[rand()&7];
928                                         p->type = pt_fade;
929                                         VectorClear(p->vel);
930                                         break;
931                                 }
932                         }
933                         break;
934                 case pt_blood:
935                         p->friction = 1;
936                         a = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
937                         if (a != CONTENTS_EMPTY)
938                         {
939                                 if (a == CONTENTS_WATER || a == CONTENTS_SLIME)
940                                 {
941                                         p->friction = 5;
942                                         p->scale += frametime * 32.0f;
943                                         p->alpha -= frametime * 128.0f;
944                                         p->vel[2] += gravity * 0.125f;
945                                         if (p->alpha < 1)
946                                                 p->die = -1;
947                                         break;
948                                 }
949                                 else
950                                 {
951                                         p->die = -1;
952                                         break;
953                                 }
954                         }
955                         p->vel[2] -= gravity * 0.5;
956                         break;
957                 case pt_spark:
958                         p->alpha -= frametime * p->time2;
959                         p->vel[2] -= gravity;
960                         if (p->alpha < 1)
961                                 p->die = -1;
962                         else if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents != CONTENTS_EMPTY)
963                                 p->type = pt_underwaterspark;
964                         break;
965                 case pt_underwaterspark:
966                         if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents == CONTENTS_EMPTY)
967                         {
968                                 p->tex = tex_smoke[rand()&7];
969                                 p->color[0] = p->color[1] = p->color[2] = 255;
970                                 p->scale = 16;
971                                 p->type = pt_explosionsplash;
972                         }
973                         else
974                                 p->vel[2] += gravity * 0.5f;
975                         p->alpha -= frametime * p->time2;
976                         if (p->alpha < 1)
977                                 p->die = -1;
978                         break;
979                 case pt_explosionsplash:
980                         if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents == CONTENTS_EMPTY)
981                                 p->vel[2] -= gravity;
982                         else
983                                 p->alpha = 0;
984                         p->scale += frametime * 64.0f;
985                         p->alpha -= frametime * 1024.0f;
986                         if (p->alpha < 1)
987                                 p->die = -1;
988                         break;
989                 case pt_fade:
990                         p->alpha -= frametime * 512;
991                         if (p->alpha < 1)
992                                 p->die = -1;
993                         break;
994                 case pt_bubble:
995                         a = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
996                         if (a != CONTENTS_WATER && a != CONTENTS_SLIME)
997                         {
998                                 p->tex = tex_smoke[rand()&7];
999                                 p->type = pt_splashpuff;
1000                                 p->scale = 4;
1001                                 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1002                                 break;
1003                         }
1004                         p->vel[2] += gravity * 0.25;
1005                         p->vel[0] *= (1 - (frametime * 0.0625));
1006                         p->vel[1] *= (1 - (frametime * 0.0625));
1007                         p->vel[2] *= (1 - (frametime * 0.0625));
1008                         if (cl.time > p->time2)
1009                         {
1010                                 p->time2 = cl.time + lhrandom(0, 0.5);
1011                                 p->vel[0] += lhrandom(-32,32);
1012                                 p->vel[1] += lhrandom(-32,32);
1013                                 p->vel[2] += lhrandom(-32,32);
1014                         }
1015                         p->alpha -= frametime * 256;
1016                         if (p->alpha < 1)
1017                                 p->die = -1;
1018                         break;
1019                 case pt_bulletsmoke:
1020                         p->scale += frametime * 16;
1021                         p->alpha -= frametime * 1024;
1022                         p->vel[2] += gravity * 0.1;
1023                         if (p->alpha < 1)
1024                                 p->die = -1;
1025                         break;
1026                 case pt_smoke:
1027                         p->scale += frametime * 24;
1028                         p->alpha -= frametime * 256;
1029                         p->vel[2] += gravity * 0.1;
1030                         if (p->alpha < 1)
1031                                 p->die = -1;
1032                         break;
1033                 case pt_steam:
1034                         p->scale += frametime * 48;
1035                         p->alpha -= frametime * 512;
1036                         p->vel[2] += gravity * 0.05;
1037                         if (p->alpha < 1)
1038                                 p->die = -1;
1039                         break;
1040                 case pt_splashpuff:
1041                         p->alpha -= frametime * 1024;
1042                         if (p->alpha < 1)
1043                                 p->die = -1;
1044                         break;
1045                 case pt_rain:
1046                         f = 0;
1047                         b = Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents;
1048                         VectorCopy(p->oldorg, o);
1049                         while (f < 1)
1050                         {
1051                                 a = b;
1052                                 f = TraceLine(o, p->org, v, normal, a);
1053                                 b = traceline_endcontents;
1054                                 if (f < 1 && b != CONTENTS_EMPTY && b != CONTENTS_SKY)
1055                                 {
1056                                         p->die = cl.time + 1000;
1057                                         p->vel[0] = p->vel[1] = p->vel[2] = 0;
1058                                         VectorCopy(v, p->org);
1059                                         switch (b)
1060                                         {
1061                                         case CONTENTS_LAVA:
1062                                         case CONTENTS_SLIME:
1063                                                 p->tex = tex_smoke[rand()&7];
1064                                                 p->type = pt_steam;
1065                                                 p->scale = 3;
1066                                                 p->vel[2] = 96;
1067                                                 break;
1068                                         default: // water, solid, and anything else
1069                                                 p->tex = tex_rainsplash[0];
1070                                                 p->time2 = 0;
1071                                                 VectorCopy(normal, p->vel2);
1072                                         //      VectorAdd(p->org, normal, p->org);
1073                                                 p->type = pt_raindropsplash;
1074                                                 p->scale = 8;
1075                                                 break;
1076                                         }
1077                                 }
1078                         }
1079                         break;
1080                 case pt_raindropsplash:
1081                         p->time2 += frametime * 64.0f;
1082                         if (p->time2 >= 16.0f)
1083                         {
1084                                 p->die = -1;
1085                                 break;
1086                         }
1087                         p->tex = tex_rainsplash[(int) p->time2];
1088                         break;
1089                 case pt_flame:
1090                         p->alpha -= frametime * 512;
1091                         p->vel[2] += gravity;
1092                         if (p->alpha < 16)
1093                                 p->die = -1;
1094                         break;
1095                 case pt_oneframe:
1096                         if (p->time2)
1097                                 p->die = -1;
1098                         p->time2 = 1;
1099                         break;
1100                 default:
1101                         printf("unknown particle type %i\n", p->type);
1102                         p->die = -1;
1103                         break;
1104                 }
1105
1106                 // LordHavoc: immediate removal of unnecessary particles (must be done to ensure compactor below operates properly in all cases)
1107                 if (p->die < cl.time)
1108                         freeparticles[j++] = p;
1109                 else
1110                 {
1111                         maxparticle = i;
1112                         activeparticles++;
1113                         if (p->pressure)
1114                                 pressureused = true;
1115
1116                         // build renderparticle for renderer to use
1117                         if (p->type == pt_raindropsplash)
1118                         {
1119                                 r->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
1120                                 r->dir[0] = p->vel2[0];
1121                                 r->dir[1] = p->vel2[1];
1122                                 r->dir[2] = p->vel2[2];
1123                         }
1124                         else if (p->tex == tex_rain)
1125                                 r->orientation = PARTICLE_UPRIGHT_FACING;
1126                         else
1127                                 r->orientation = PARTICLE_BILLBOARD;
1128                         r->org[0] = p->org[0];
1129                         r->org[1] = p->org[1];
1130                         r->org[2] = p->org[2];
1131                         r->tex = p->tex;
1132                         r->scale = p->scale * 0.5f * cl_particles_size.value;
1133                         r->dynlight = p->dynlight;
1134                         r->color[0] = p->color[0] * (1.0f / 255.0f);
1135                         r->color[1] = p->color[1] * (1.0f / 255.0f);
1136                         r->color[2] = p->color[2] * (1.0f / 255.0f);
1137                         r->color[3] = p->alpha * (1.0f / 255.0f);
1138                         r++;
1139                 }
1140         }
1141         r_refdef.numparticles = r - r_refdef.particles;
1142         // fill in gaps to compact the array
1143         i = 0;
1144         while (maxparticle >= activeparticles)
1145         {
1146                 *freeparticles[i++] = particles[maxparticle--];
1147                 while (maxparticle >= activeparticles && particles[maxparticle].die < cl.time)
1148                         maxparticle--;
1149         }
1150         cl_numparticles = activeparticles;
1151
1152         if (pressureused)
1153         {
1154                 activeparticles = 0;
1155                 for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1156                         if (p->pressure)
1157                                 freeparticles[activeparticles++] = p;
1158
1159                 if (activeparticles)
1160                 {
1161                         for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1162                         {
1163                                 for (j = 0;j < activeparticles;j++)
1164                                 {
1165                                         if (freeparticles[j] != p)
1166                                         {
1167                                                 float dist, diff[3];
1168                                                 VectorSubtract(p->org, freeparticles[j]->org, diff);
1169                                                 dist = DotProduct(diff, diff);
1170                                                 if (dist < 4096 && dist >= 1)
1171                                                 {
1172                                                         dist = freeparticles[j]->scale * 4.0f * frametime / sqrt(dist);
1173                                                         VectorMA(p->vel, dist, diff, p->vel);
1174                                                         //dist = freeparticles[j]->scale * 4.0f * frametime / dist;
1175                                                         //VectorMA(p->vel, dist, freeparticles[j]->vel, p->vel);
1176                                                 }
1177                                         }
1178                                 }
1179                         }
1180                 }
1181         }
1182 }