qcsrc/client/particles.qc

   1 .float dphitcontentsmask;
   2
   3 .float cnt; // effect number
   4 .vector velocity; // particle velocity
   5 .float waterlevel; // direction jitter
   6 .float count; // count multiplier
   7 .float impulse; // density
   8 .string noise; // sound
   9 .float atten;
  10 .float volume;
  11 .float absolute; // 1 = count per second is absolute, 2 = only spawn at toggle
  12 .vector movedir; // trace direction
  13
  14 void Draw_PointParticles()
  15 {
  16         float n, i, fail;
  17         vector p;
  18         vector sz;
  19         vector o;
  20         o = self.origin;
  21         sz = self.maxs - self.mins;
  22         n = BGMScript(self);
  23         if(self.absolute == 2)
  24         {
  25                 if(n >= 0)
  26                         n = self.just_toggled ? self.impulse : 0;
  27                 else
  28                         n = self.impulse * drawframetime;
  29         }
  30         else
  31         {
  32                 n *= self.impulse * drawframetime;
  33                 if(self.just_toggled)
  34                         if(n < 1)
  35                                 n = 1;
  36         }
  37         if(n == 0)
  38                 return;
  39         fail = 0;
  40         for(i = random(); i <= n && fail <= 64*n; ++i)
  41         {
  42                 p = o + self.mins;
  43                 p_x += random() * sz_x;
  44                 p_y += random() * sz_y;
  45                 p_z += random() * sz_z;
  46                 if(WarpZoneLib_BoxTouchesBrush(p, p, self, world))
  47                 {
  48                         if(self.movedir != '0 0 0')
  49                         {
  50                                 traceline(p, p + normalize(self.movedir) * 4096, 0, world);
  51                                 p = trace_endpos;
  52                                 pointparticles(self.cnt, p, trace_plane_normal * vlen(self.movedir) + self.velocity + randomvec() * self.waterlevel, self.count);
  53                         }
  54                         else
  55                         {
  56                                 pointparticles(self.cnt, p, self.velocity + randomvec() * self.waterlevel, self.count);
  57                         }
  58                         if(self.noise != "")
  59                         {
  60                                 setorigin(self, p);
  61                                 sound(self, CH_AMBIENT, self.noise, VOL_BASE * self.volume, self.atten);
  62                         }
  63                         self.just_toggled = 0;
  64                 }
  65                 else if(self.absolute)
  66                 {
  67                         ++fail;
  68                         --i;
  69                 }
  70         }
  71         setorigin(self, o);
  72 }
  73
  74 void Ent_PointParticles_Remove()
  75 {
  76         if(self.noise)
  77                 strunzone(self.noise);
  78         self.noise = string_null;
  79         if(self.bgmscript)
  80                 strunzone(self.bgmscript);
  81         self.bgmscript = string_null;
  82 }
  83
  84 void Ent_PointParticles()
  85 {
  86         float f, i;
  87         vector v;
  88         f = ReadByte();
  89         if(f & 2)
  90         {
  91                 i = ReadCoord(); // density (<0: point, >0: volume)
  92                 if(i && !self.impulse && self.cnt) // self.cnt check is so it only happens if the ent already existed
  93                         self.just_toggled = 1;
  94                 self.impulse = i;
  95         }
  96         if(f & 4)
  97         {
  98                 self.origin_x = ReadCoord();
  99                 self.origin_y = ReadCoord();
 100                 self.origin_z = ReadCoord();
 101         }
 102         if(f & 1)
 103         {
 104                 self.modelindex = ReadShort();
 105                 if(f & 0x80)
 106                 {
 107                         if(self.modelindex)
 108                         {
 109                                 self.mins_x = ReadCoord();
 110                                 self.mins_y = ReadCoord();
 111                                 self.mins_z = ReadCoord();
 112                                 self.maxs_x = ReadCoord();
 113                                 self.maxs_y = ReadCoord();
 114                                 self.maxs_z = ReadCoord();
 115                         }
 116                         else
 117                         {
 118                                 self.mins    = '0 0 0';
 119                                 self.maxs_x = ReadCoord();
 120                                 self.maxs_y = ReadCoord();
 121                                 self.maxs_z = ReadCoord();
 122                         }
 123                 }
 124                 else
 125                 {
 126                         self.mins = self.maxs = '0 0 0';
 127                 }
 128
 129                 self.cnt = ReadShort(); // effect number
 130
 131                 if(f & 0x20)
 132                 {
 133                         self.velocity = decompressShortVector(ReadShort());
 134                         self.movedir = decompressShortVector(ReadShort());
 135                 }
 136                 else
 137                 {
 138                         self.velocity = self.movedir = '0 0 0';
 139                 }
 140                 if(f & 0x40)
 141                 {
 142                         self.waterlevel = ReadShort() / 16.0;
 143                         self.count = ReadByte() / 16.0;
 144                 }
 145                 else
 146                 {
 147                         self.waterlevel = 0;
 148                         self.count = 1;
 149                 }
 150                 if(self.noise)
 151                         strunzone(self.noise);
 152                 if(self.bgmscript)
 153                         strunzone(self.bgmscript);
 154                 self.noise = strzone(ReadString());
 155                 if(self.noise != "")
 156                 {
 157                         self.atten = ReadByte() / 64.0;
 158                         self.volume = ReadByte() / 255.0;
 159                 }
 160                 self.bgmscript = strzone(ReadString());
 161                 if(self.bgmscript != "")
 162                 {
 163                         self.bgmscriptattack = ReadByte() / 64.0;
 164                         self.bgmscriptdecay = ReadByte() / 64.0;
 165                         self.bgmscriptsustain = ReadByte() / 255.0;
 166                         self.bgmscriptrelease = ReadByte() / 64.0;
 167                 }
 168                 BGMScript_InitEntity(self);
 169         }
 170
 171         if(f & 2)
 172         {
 173                 self.absolute = (self.impulse >= 0);
 174                 if(!self.absolute)
 175                 {
 176                         v = self.maxs - self.mins;
 177                         self.impulse *= -v_x * v_y * v_z / 262144; // relative: particles per 64^3 cube
 178                 }
 179         }
 180
 181         if(f & 0x10)
 182                 self.absolute = 2;
 183
 184         setorigin(self, self.origin);
 185         setsize(self, self.mins, self.maxs);
 186         self.solid = SOLID_NOT;
 187         self.draw = Draw_PointParticles;
 188         self.entremove = Ent_PointParticles_Remove;
 189 }
 190
 191 .float glow_color; // palette index
 192 void Draw_Rain()
 193 {
 194     te_particlerain(self.origin + self.mins, self.origin + self.maxs, self.velocity, floor(self.count * drawframetime + random()), self.glow_color);
 195 }
 196
 197 void Draw_Snow()
 198 {
 199     te_particlesnow(self.origin + self.mins, self.origin + self.maxs, self.velocity, floor(self.count * drawframetime + random()), self.glow_color);
 200 }
 201
 202 void Ent_RainOrSnow()
 203 {
 204         self.impulse = ReadByte(); // Rain, Snow, or Whatever
 205         self.origin_x = ReadCoord();
 206         self.origin_y = ReadCoord();
 207         self.origin_z = ReadCoord();
 208         self.maxs_x = ReadCoord();
 209         self.maxs_y = ReadCoord();
 210         self.maxs_z = ReadCoord();
 211         self.velocity = decompressShortVector(ReadShort());
 212         self.count = ReadShort() * 10;
 213         self.glow_color = ReadByte(); // color
 214
 215         self.mins    = -0.5 * self.maxs;
 216         self.maxs    =  0.5 * self.maxs;
 217         self.origin  = self.origin - self.mins;
 218
 219         setorigin(self, self.origin);
 220         setsize(self, self.mins, self.maxs);
 221         self.solid = SOLID_NOT;
 222         if(self.impulse)
 223                 self.draw = Draw_Rain;
 224         else
 225                 self.draw = Draw_Snow;
 226 }
 227
 228 void Net_ReadVortexBeamParticle()
 229 {
 230         vector shotorg, endpos;
 231         float charge;
 232         shotorg_x = ReadCoord(); shotorg_y = ReadCoord(); shotorg_z = ReadCoord();
 233         endpos_x = ReadCoord(); endpos_y = ReadCoord(); endpos_z = ReadCoord();
 234         charge = ReadByte() / 255.0;
 235
 236         pointparticles(particleeffectnum("nex_muzzleflash"), shotorg, normalize(endpos - shotorg) * 1000, 1);
 237
 238         //draw either the old v2.3 beam or the new beam
 239         charge = sqrt(charge); // divide evenly among trail spacing and alpha
 240         particles_alphamin = particles_alphamax = particles_fade = charge;
 241
 242         if (autocvar_cl_particles_oldnexbeam && (getstati(STAT_ALLOW_OLDNEXBEAM) || isdemo()))
 243                 WarpZone_TrailParticles_WithMultiplier(world, particleeffectnum("TE_TEI_G3"), shotorg, endpos, 1, PARTICLES_USEALPHA | PARTICLES_USEFADE);
 244         else
 245                 WarpZone_TrailParticles_WithMultiplier(world, particleeffectnum("nex_beam"), shotorg, endpos, 1, PARTICLES_USEALPHA | PARTICLES_USEFADE);
 246 }
 247
 248 .vector sw_shotorg;
 249 .vector sw_endpos;
 250 .float sw_spread_max;
 251 .float sw_spread_min;
 252 .float sw_time;
 253
 254 void Draw_Shockwave()
 255 {
 256         float a = bound(0, (0.5 - ((time - self.sw_time) / 0.4)), 0.5);
 257
 258         if(!a) { remove(self); }
 259
 260         vector deviation, angle;
 261
 262         vector sw_color = getcsqcplayercolor(self.sv_entnum); // GetTeamRGB(GetPlayerColor(self.sv_entnum));
 263
 264         vector first_min_end = '0 0 0', prev_min_end = '0 0 0', new_min_end = '0 0 0';
 265         vector first_max_end = '0 0 0', prev_max_end = '0 0 0', new_max_end = '0 0 0';
 266
 267         float new_max_dist, new_min_dist;
 268
 269         vector shotdir = normalize(self.sw_endpos - self.sw_shotorg);
 270         vectorvectors(shotdir);
 271         vector right = v_right;
 272         vector up = v_up;
 273
 274         float counter, dist_before_normal = 200, shots = 20;
 275
 276         vector min_end = ((self.sw_shotorg + (shotdir * dist_before_normal)) + (up * self.sw_spread_min));
 277         vector max_end = (self.sw_endpos + (up * self.sw_spread_max));
 278
 279         float spread_to_min = vlen(normalize(min_end - self.sw_shotorg) - shotdir);
 280         float spread_to_max = vlen(normalize(max_end - min_end) - shotdir);
 281
 282         for(counter = 0; counter < shots; ++counter)
 283         {
 284                 // perfect circle effect lines
 285                 angle = '0 0 0';
 286                 makevectors('0 360 0' * (0.75 + (counter - 0.5) / shots));
 287                 angle_y = v_forward_x;
 288                 angle_z = v_forward_y;
 289
 290                 // first do the spread_to_min effect
 291                 deviation = angle * spread_to_min;
 292                 deviation = ((shotdir + (right * deviation_y) + (up * deviation_z)));
 293                 new_min_dist = dist_before_normal;
 294                 new_min_end = (self.sw_shotorg + (deviation * new_min_dist));
 295                 //te_lightning2(world, new_min_end, self.sw_shotorg);
 296
 297                 // then calculate spread_to_max effect
 298                 deviation = angle * spread_to_max;
 299                 deviation = ((shotdir + (right * deviation_y) + (up * deviation_z)));
 300                 new_max_dist = vlen(new_min_end - self.sw_endpos);
 301                 new_max_end = (new_min_end + (deviation * new_max_dist));
 302                 //te_lightning2(world, new_end, prev_min_end);
 303
 304
 305                 if(counter == 0)
 306                 {
 307                         first_min_end = new_min_end;
 308                         first_max_end = new_max_end;
 309                 }
 310
 311                 if(counter >= 1)
 312                 {
 313                         R_BeginPolygon("", DRAWFLAG_NORMAL);
 314                         R_PolygonVertex(prev_min_end, '0 0 0', sw_color, a);
 315                         R_PolygonVertex(new_min_end, '0 0 0', sw_color, a);
 316                         R_PolygonVertex(self.sw_shotorg, '0 0 0', sw_color, a);
 317                         R_EndPolygon();
 318
 319                         R_BeginPolygon("", DRAWFLAG_NORMAL);
 320                         R_PolygonVertex(new_min_end, '0 0 0', sw_color, a);
 321                         R_PolygonVertex(prev_min_end, '0 0 0', sw_color, a);
 322                         R_PolygonVertex(prev_max_end, '0 0 0', sw_color, a);
 323                         R_PolygonVertex(new_max_end, '0 0 0', sw_color, a);
 324                         R_EndPolygon();
 325                 }
 326
 327                 prev_min_end = new_min_end;
 328                 prev_max_end = new_max_end;
 329
 330                 if((counter + 1) == shots)
 331                 {
 332                         R_BeginPolygon("", DRAWFLAG_NORMAL);
 333                         R_PolygonVertex(prev_min_end, '0 0 0', sw_color, a);
 334                         R_PolygonVertex(first_min_end, '0 0 0', sw_color, a);
 335                         R_PolygonVertex(self.sw_shotorg, '0 0 0', sw_color, a);
 336                         R_EndPolygon();
 337
 338                         R_BeginPolygon("", DRAWFLAG_NORMAL);
 339                         R_PolygonVertex(first_min_end, '0 0 0', sw_color, a);
 340                         R_PolygonVertex(prev_min_end, '0 0 0', sw_color, a);
 341                         R_PolygonVertex(prev_max_end, '0 0 0', sw_color, a);
 342                         R_PolygonVertex(first_max_end, '0 0 0', sw_color, a);
 343                         R_EndPolygon();
 344                 }
 345         }
 346 }
 347
 348 void Net_ReadShockwaveParticle()
 349 {
 350         entity shockwave;
 351         shockwave = spawn();
 352         shockwave.draw = Draw_Shockwave;
 353
 354         shockwave.sw_shotorg_x = ReadCoord(); shockwave.sw_shotorg_y = ReadCoord(); shockwave.sw_shotorg_z = ReadCoord();
 355         shockwave.sw_endpos_x  = ReadCoord(); shockwave.sw_endpos_y  = ReadCoord(); shockwave.sw_endpos_z  = ReadCoord();
 356
 357         shockwave.sw_spread_max = ReadByte();
 358         shockwave.sw_spread_min = ReadByte();
 359
 360         shockwave.sv_entnum = ReadByte();
 361
 362         shockwave.sw_time = time;
 363 }
 364
 365 .vector beam_color;
 366 .float beam_alpha;
 367 .float beam_thickness;
 368 .float beam_traileffect;
 369 .float beam_hiteffect;
 370 .float beam_hitlight[4]; // 0: radius, 123: rgb
 371 .float beam_muzzleeffect;
 372 .float beam_muzzlelight[4]; // 0: radius, 123: rgb
 373 .string beam_image;
 374
 375 .entity beam_muzzleentity;
 376
 377 .float beam_usevieworigin;
 378 .float beam_initialized;
 379 .float beam_maxangle;
 380 .float beam_range;
 381 .float beam_returnspeed;
 382 .float beam_tightness;
 383 .vector beam_shotorigin;
 384 .vector beam_dir;
 385
 386 entity Draw_ArcBeam_callback_entity;
 387 vector Draw_ArcBeam_callback_new_dir;
 388 float Draw_ArcBeam_callback_segmentdist;
 389 float Draw_ArcBeam_callback_last_thickness;
 390 vector Draw_ArcBeam_callback_last_top;
 391 vector Draw_ArcBeam_callback_last_bottom;
 392
 393 void Draw_ArcBeam_callback(vector start, vector hit, vector end)
 394 {
 395         entity beam = Draw_ArcBeam_callback_entity;
 396         vector transformed_view_org;
 397         transformed_view_org = WarpZone_TransformOrigin(WarpZone_trace_transform, view_origin);
 398
 399         vector thickdir = normalize(cross(normalize(start - hit), transformed_view_org - start));
 400
 401         vector hitorigin;
 402
 403         // draw segment
 404         #if 0
 405         if(trace_fraction != 1)
 406         {
 407                 // calculate our own hit origin as trace_endpos tends to jump around annoyingly (to player origin?)
 408                 hitorigin = start + (Draw_ArcBeam_callback_new_dir * Draw_ArcBeam_callback_segmentdist * trace_fraction);
 409                 hitorigin = WarpZone_TransformOrigin(WarpZone_trace_transform, hitorigin);
 410         }
 411         else
 412         {
 413                 hitorigin = hit;
 414         }
 415         #else
 416         hitorigin = hit;
 417         #endif
 418
 419         // decide upon thickness
 420         float thickness = beam.beam_thickness;
 421
 422         // draw primary beam render
 423         vector top    = hitorigin + (thickdir * thickness);
 424         vector bottom = hitorigin - (thickdir * thickness);
 425         //vector last_top    = start + (thickdir * Draw_ArcBeam_callback_last_thickness);
 426         //vector last_bottom = start - (thickdir * Draw_ArcBeam_callback_last_thickness);
 427
 428         R_BeginPolygon(beam.beam_image, DRAWFLAG_NORMAL); // DRAWFLAG_ADDITIVE
 429         R_PolygonVertex(
 430                 top,
 431                 '0 0.5 0' + ('0 0.5 0' * (thickness / beam.beam_thickness)),
 432                 beam.beam_color,
 433                 beam.beam_alpha
 434         );
 435         R_PolygonVertex(
 436                 Draw_ArcBeam_callback_last_top,
 437                 '0 0.5 0' + ('0 0.5 0' * (Draw_ArcBeam_callback_last_thickness / beam.beam_thickness)),
 438                 beam.beam_color,
 439                 beam.beam_alpha
 440         );
 441         R_PolygonVertex(
 442                 Draw_ArcBeam_callback_last_bottom,
 443                 '0 0.5 0' * (1 - (Draw_ArcBeam_callback_last_thickness / beam.beam_thickness)),
 444                 beam.beam_color,
 445                 beam.beam_alpha
 446         );
 447         R_PolygonVertex(
 448                 bottom,
 449                 '0 0.5 0' * (1 - (thickness / beam.beam_thickness)),
 450                 beam.beam_color,
 451                 beam.beam_alpha
 452         );
 453         R_EndPolygon();
 454
 455         // draw trailing particles
 456         // NOTES:
 457         //  - Don't use spammy particle counts here, use a FEW small particles around the beam
 458         //  - We're not using WarpZone_TrailParticles here because we will handle warpzones ourselves.
 459         if(beam.beam_traileffect)
 460         {
 461                 trailparticles(beam, beam.beam_traileffect, start, hitorigin);
 462         }
 463
 464         // set up for the next
 465         Draw_ArcBeam_callback_last_thickness = thickness;
 466         Draw_ArcBeam_callback_last_top = top;
 467         Draw_ArcBeam_callback_last_bottom = bottom;
 468 }
 469
 470 void Draw_ArcBeam()
 471 {
 472         if(!self.beam_usevieworigin)
 473         {
 474                 InterpolateOrigin_Do();
 475         }
 476
 477         // origin = beam starting origin
 478         // v_angle = wanted/aim direction
 479         // angles = current direction of beam
 480
 481         vector start_pos;
 482         vector wantdir; //= view_forward;
 483         vector beamdir; //= self.beam_dir;
 484
 485         float segments;
 486         if(self.beam_usevieworigin)
 487         {
 488                 // WEAPONTODO:
 489                 // Currently we have to replicate nearly the same method of figuring
 490                 // out the shotdir that the server does... Ideally in the future we
 491                 // should be able to acquire this from a generalized function built
 492                 // into a weapon system for client code.
 493
 494                 // find where we are aiming
 495                 makevectors(view_angles);
 496
 497                 // decide upon start position
 498                 if(self.beam_usevieworigin == 2)
 499                         { start_pos = view_origin; }
 500                 else
 501                         { start_pos = self.origin; }
 502
 503                 // trace forward with an estimation
 504                 WarpZone_TraceLine(
 505                         start_pos,
 506                         start_pos + view_forward * self.beam_range,
 507                         MOVE_NOMONSTERS,
 508                         self
 509                 );
 510
 511                 // untransform in case our trace went through a warpzone
 512                 vector vf, vr, vu;
 513                 vf = view_forward;
 514                 vr = view_right;
 515                 vu = view_up;
 516                 vector shothitpos = WarpZone_UnTransformOrigin(WarpZone_trace_transform, trace_endpos); // warpzone support
 517                 view_forward = vf;
 518                 view_right = vr;
 519                 view_up = vu;
 520
 521                 // un-adjust trueaim if shotend is too close
 522                 if(vlen(shothitpos - view_origin) < g_trueaim_minrange)
 523                         shothitpos = view_origin + (view_forward * g_trueaim_minrange);
 524
 525                 // move shot origin to the actual gun muzzle origin
 526                 vector origin_offset = view_forward * self.beam_shotorigin_x + view_right * -self.beam_shotorigin_y + view_up * self.beam_shotorigin_z;
 527                 start_pos = start_pos + origin_offset;
 528
 529                 // calculate the aim direction now
 530                 wantdir = normalize(shothitpos - start_pos);
 531
 532                 if(!self.beam_initialized)
 533                 {
 534                         self.beam_dir = wantdir;
 535                         self.beam_initialized = TRUE;
 536                 }
 537
 538                 // WEAPONTODO: Calculate segments dyanmically similarly to the server code
 539                 segments = 20;
 540                 if(self.beam_dir != wantdir)
 541                 {
 542                         float angle = ceil(vlen(wantdir - self.beam_dir) * RAD2DEG);
 543                         float anglelimit;
 544                         if(angle && (angle > self.beam_maxangle))
 545                         {
 546                                 // if the angle is greater than maxangle, force the blendfactor to make this the maximum factor
 547                                 anglelimit = min(self.beam_maxangle / angle, 1);
 548                         }
 549                         else
 550                         {
 551                                 // the radius is not too far yet, no worries :D
 552                                 anglelimit = 1;
 553                         }
 554
 555                         // calculate how much we're going to move the end of the beam to the want position
 556                         float blendfactor = bound(0, anglelimit * (1 - (self.beam_returnspeed * frametime)), 1);
 557                         self.beam_dir = normalize((wantdir * (1 - blendfactor)) + (self.beam_dir * blendfactor));
 558
 559                         // WEAPONTODO (server and client):
 560                         // blendfactor never actually becomes 0 in this situation, which is a problem
 561                         // regarding precision... this means that self.beam_dir and w_shotdir approach
 562                         // eachother, however they never actually become the same value with this method.
 563
 564                         // Perhaps we should do some form of rounding/snapping?
 565
 566                         // printf("blendfactor = %f\n", blendfactor);
 567
 568                         #if 0
 569                         // calculate how many segments are needed
 570                         float max_allowed_segments;
 571
 572                         if(WEP_CVAR(arc, beam_distancepersegment))
 573                                 max_allowed_segments = min(ARC_MAX_SEGMENTS, 1 + (vlen(w_shotdir / WEP_CVAR(arc, beam_distancepersegment))));
 574                         else
 575                                 max_allowed_segments = ARC_MAX_SEGMENTS;
 576
 577                         if(WEP_CVAR(arc, beam_degreespersegment))
 578                         {
 579                                 segments = min( max(1, ( min(angle, WEP_CVAR(arc, beam_maxangle)) / WEP_CVAR(arc, beam_degreespersegment) ) ), max_allowed_segments );
 580                         }
 581                         else
 582                         {
 583                                 segments = 1;
 584                         }
 585                         #endif
 586                 }
 587                 #if 0
 588                 else
 589                 {
 590                         segments = 1;
 591                 }
 592                 #endif
 593
 594                 // set the beam direction which the rest of the code will refer to
 595                 beamdir = self.beam_dir;
 596
 597                 // finally, set self.angles to the proper direction so that muzzle attachment points in proper direction
 598                 self.angles = fixedvectoangles2(view_forward, view_up);
 599         }
 600         else
 601         {
 602                 // set the values from the provided info from the networked entity
 603                 start_pos = self.origin;
 604                 wantdir = self.v_angle;
 605                 beamdir = self.angles;
 606
 607                 // WEAPONTODO: Calculate segments dyanmically similarly to the server code
 608                 segments = 20;
 609                 #if 0
 610                 if(beamdir != wantdir)
 611                 {
 612                         // calculate how many segments are needed
 613                         float max_allowed_segments;
 614
 615                         if(WEP_CVAR(arc, beam_distancepersegment))
 616                                 max_allowed_segments = min(ARC_MAX_SEGMENTS, 1 + (vlen(w_shotdir / WEP_CVAR(arc, beam_distancepersegment))));
 617                         else
 618                                 max_allowed_segments = ARC_MAX_SEGMENTS;
 619
 620                         if(WEP_CVAR(arc, beam_degreespersegment))
 621                         {
 622                                 segments = min( max(1, ( min(angle, WEP_CVAR(arc, beam_maxangle)) / WEP_CVAR(arc, beam_degreespersegment) ) ), max_allowed_segments );
 623                         }
 624                         else
 625                         {
 626                                 segments = 1;
 627                         }
 628                 }
 629                 else
 630                 {
 631                         segments = 1;
 632                 }
 633                 #endif
 634         }
 635
 636         setorigin(self, start_pos);
 637         self.beam_muzzleentity.angles_z = random() * 360; // WEAPONTODO: use avelocity instead?
 638
 639         vector beam_endpos_estimate = (start_pos + (beamdir * self.beam_range));
 640
 641         Draw_ArcBeam_callback_entity = self;
 642         Draw_ArcBeam_callback_last_thickness = 0;
 643         Draw_ArcBeam_callback_last_top = start_pos;
 644         Draw_ArcBeam_callback_last_bottom = start_pos;
 645
 646         vector last_origin = start_pos;
 647
 648         float i;
 649         for(i = 1; i <= segments; ++i)
 650         {
 651                 // WEAPONTODO (server and client):
 652                 // Segment blend and distance should probably really be calculated in a better way,
 653                 // however I am not sure how to do it properly. There are a few things I have tried,
 654                 // but most of them do not work properly due to my lack of understanding regarding
 655                 // the mathematics behind them.
 656
 657                 // Ideally, we should calculate the positions along a perfect curve
 658                 // between wantdir and self.beam_dir with an option for depth of arc
 659
 660                 // Another issue is that (on the client code) we must separate the
 661                 // curve into multiple rendered curves when handling warpzones.
 662
 663                 // I can handle this by detecting it for each segment, however that
 664                 // is a fairly inefficient method in comparison to having a curved line
 665                 // drawing function similar to Draw_CylindricLine that accepts
 666                 // top and bottom origins as input, this way there would be no
 667                 // overlapping edges when connecting the curved pieces.
 668
 669                 // WEAPONTODO (client):
 670                 // In order to do nice fading and pointing on the starting segment, we must always
 671                 // have that drawn as a separate triangle... However, that is difficult to do when
 672                 // keeping in mind the above problems and also optimizing the amount of segments
 673                 // drawn on screen at any given time. (Automatic beam quality scaling, essentially)
 674
 675                 // calculate this on every segment to ensure that we always reach the full length of the attack
 676                 float segmentblend = bound(0, (i/segments) + self.beam_tightness, 1);
 677                 float segmentdist = vlen(beam_endpos_estimate - last_origin) * (i/segments);
 678
 679                 vector new_dir = normalize( (wantdir * (1 - segmentblend)) + (normalize(beam_endpos_estimate - last_origin) * segmentblend) );
 680                 vector new_origin = last_origin + (new_dir * segmentdist);
 681
 682                 Draw_ArcBeam_callback_segmentdist = segmentdist;
 683                 Draw_ArcBeam_callback_new_dir = new_dir;
 684
 685                 WarpZone_TraceBox_ThroughZone(
 686                         last_origin,
 687                         '0 0 0',
 688                         '0 0 0',
 689                         new_origin,
 690                         MOVE_NORMAL,
 691                         world,
 692                         world,
 693                         Draw_ArcBeam_callback
 694                 );
 695
 696                 //printf("segment: %d, warpzone transform: %d\n", i, (WarpZone_trace_transform != world));
 697
 698                 // WEAPONTODO:
 699                 // Figure out some way to detect a collision with geometry with callback...
 700                 // That way we can know when we are done drawing the beam and skip
 701                 // the rest of the segments without breaking warpzone support.
 702
 703                 last_origin = WarpZone_TransformOrigin(WarpZone_trace_transform, new_origin);
 704                 beam_endpos_estimate = WarpZone_TransformOrigin(WarpZone_trace_transform, beam_endpos_estimate);
 705         }
 706
 707         // startpoint and endpoint drawn visual effects
 708         if(self.beam_hiteffect)
 709         {
 710                 pointparticles(
 711                         self.beam_hiteffect,
 712                         last_origin,
 713                         beamdir * -1,
 714                         frametime * 2
 715                 );
 716         }
 717         if(self.beam_hitlight[0])
 718         {
 719                 adddynamiclight(
 720                         last_origin,
 721                         self.beam_hitlight[0],
 722                         vec3(
 723                                 self.beam_hitlight[1],
 724                                 self.beam_hitlight[2],
 725                                 self.beam_hitlight[3]
 726                         )
 727                 );
 728         }
 729         if(self.beam_muzzleeffect)
 730         {
 731                 pointparticles(
 732                         self.beam_muzzleeffect,
 733                         start_pos + wantdir * 20,
 734                         wantdir * 1000,
 735                         frametime * 0.1
 736                 );
 737         }
 738         if(self.beam_muzzlelight[0])
 739         {
 740                 adddynamiclight(
 741                         start_pos + wantdir * 20,
 742                         self.beam_muzzlelight[0],
 743                         vec3(
 744                                 self.beam_muzzlelight[1],
 745                                 self.beam_muzzlelight[2],
 746                                 self.beam_muzzlelight[3]
 747                         )
 748                 );
 749         }
 750
 751         // cleanup
 752         Draw_ArcBeam_callback_entity = world;
 753         Draw_ArcBeam_callback_new_dir = '0 0 0';
 754         Draw_ArcBeam_callback_segmentdist = 0;
 755         Draw_ArcBeam_callback_last_thickness = 0;
 756         Draw_ArcBeam_callback_last_top = '0 0 0';
 757         Draw_ArcBeam_callback_last_bottom = '0 0 0';
 758 }
 759
 760 void Remove_ArcBeam(void)
 761 {
 762         remove(self.beam_muzzleentity);
 763         sound(self, CH_SHOTS_SINGLE, "misc/null.wav", VOL_BASE, ATTEN_NORM);
 764 }
 765
 766 void Ent_ReadArcBeam(float isnew)
 767 {
 768         float sf = ReadByte();
 769         entity flash;
 770
 771         if(isnew)
 772         {
 773                 // calculate shot origin offset from gun alignment
 774                 float gunalign = autocvar_cl_gunalign;
 775                 if(gunalign != 1 && gunalign != 2 && gunalign != 4)
 776                         gunalign = 3; // default value
 777                 --gunalign;
 778
 779                 self.beam_shotorigin = arc_shotorigin[gunalign];
 780
 781                 // set other main attributes of the beam
 782                 self.draw = Draw_ArcBeam;
 783                 self.entremove = Remove_ArcBeam;
 784                 sound(self, CH_SHOTS_SINGLE, "weapons/lgbeam_fly.wav", VOL_BASE, ATTEN_NORM);
 785
 786                 flash = spawn();
 787                 flash.owner = self;
 788                 flash.effects = EF_ADDITIVE | EF_FULLBRIGHT;
 789                 flash.drawmask = MASK_NORMAL;
 790                 flash.solid = SOLID_NOT;
 791                 setattachment(flash, self, "");
 792                 setorigin(flash, '0 0 0');
 793
 794                 self.beam_muzzleentity = flash;
 795         }
 796         else
 797         {
 798                 flash = self.beam_muzzleentity;
 799         }
 800
 801         if(sf & 1) // settings information
 802         {
 803                 self.beam_maxangle = ReadShort();
 804                 self.beam_range = ReadCoord();
 805                 self.beam_returnspeed = ReadShort();
 806                 self.beam_tightness = (ReadByte() / 10);
 807
 808                 if(ReadByte())
 809                 {
 810                         if(autocvar_chase_active)
 811                                 { self.beam_usevieworigin = 1; }
 812                         else // use view origin
 813                                 { self.beam_usevieworigin = 2; }
 814                 }
 815                 else
 816                 {
 817                         self.beam_usevieworigin = 0;
 818                 }
 819         }
 820
 821         if(!self.beam_usevieworigin)
 822         {
 823                 // self.iflags = IFLAG_ORIGIN | IFLAG_ANGLES | IFLAG_V_ANGLE; // why doesn't this work?
 824                 self.iflags = IFLAG_ORIGIN;
 825
 826                 InterpolateOrigin_Undo();
 827         }
 828
 829         if(sf & 2) // starting location
 830         {
 831                 self.origin_x = ReadCoord();
 832                 self.origin_y = ReadCoord();
 833                 self.origin_z = ReadCoord();
 834         }
 835         else if(self.beam_usevieworigin) // infer the location from player location
 836         {
 837                 if(self.beam_usevieworigin == 2)
 838                 {
 839                         // use view origin
 840                         self.origin = view_origin;
 841                 }
 842                 else
 843                 {
 844                         // use player origin so that third person display still works
 845                         self.origin = getplayerorigin(player_localnum) + ('0 0 1' * getstati(STAT_VIEWHEIGHT));
 846                 }
 847         }
 848
 849         setorigin(self, self.origin);
 850
 851         if(sf & 4) // want/aim direction
 852         {
 853                 self.v_angle_x = ReadCoord();
 854                 self.v_angle_y = ReadCoord();
 855                 self.v_angle_z = ReadCoord();
 856         }
 857
 858         if(sf & 8) // beam direction
 859         {
 860                 self.angles_x = ReadCoord();
 861                 self.angles_y = ReadCoord();
 862                 self.angles_z = ReadCoord();
 863         }
 864
 865         if(sf & 16) // beam type
 866         {
 867                 self.beam_type = ReadByte();
 868                 switch(self.beam_type)
 869                 {
 870                         case ARC_BT_MISS:
 871                         {
 872                                 self.beam_color = '-1 -1 1';
 873                                 self.beam_alpha = 0.5;
 874                                 self.beam_thickness = 8;
 875                                 self.beam_traileffect = FALSE;
 876                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 877                                 self.beam_hitlight[0] = 0;
 878                                 self.beam_hitlight[1] = 1;
 879                                 self.beam_hitlight[2] = 1;
 880                                 self.beam_hitlight[3] = 1;
 881                                 self.beam_muzzleeffect = FALSE; //particleeffectnum("nex_muzzleflash");
 882                                 self.beam_muzzlelight[0] = 0;
 883                                 self.beam_muzzlelight[1] = 1;
 884                                 self.beam_muzzlelight[2] = 1;
 885                                 self.beam_muzzlelight[3] = 1;
 886                                 self.beam_image = "particles/lgbeam";
 887                                 setmodel(flash, "models/flash.md3");
 888                                 flash.alpha = self.beam_alpha;
 889                                 flash.colormod = self.beam_color;
 890                                 flash.scale = 0.5;
 891                                 break;
 892                         }
 893                         case ARC_BT_WALL: // grenadelauncher_muzzleflash healray_muzzleflash
 894                         {
 895                                 self.beam_color = '0.5 0.5 1';
 896                                 self.beam_alpha = 0.5;
 897                                 self.beam_thickness = 8;
 898                                 self.beam_traileffect = FALSE;
 899                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 900                                 self.beam_hitlight[0] = 0;
 901                                 self.beam_hitlight[1] = 1;
 902                                 self.beam_hitlight[2] = 1;
 903                                 self.beam_hitlight[3] = 1;
 904                                 self.beam_muzzleeffect = FALSE; // particleeffectnum("grenadelauncher_muzzleflash");
 905                                 self.beam_muzzlelight[0] = 0;
 906                                 self.beam_muzzlelight[1] = 1;
 907                                 self.beam_muzzlelight[2] = 1;
 908                                 self.beam_muzzlelight[3] = 1;
 909                                 self.beam_image = "particles/lgbeam";
 910                                 setmodel(flash, "models/flash.md3");
 911                                 flash.alpha = self.beam_alpha;
 912                                 flash.colormod = self.beam_color;
 913                                 flash.scale = 0.5;
 914                                 break;
 915                         }
 916                         case ARC_BT_HEAL:
 917                         {
 918                                 self.beam_color = '0 1 0';
 919                                 self.beam_alpha = 0.5;
 920                                 self.beam_thickness = 8;
 921                                 self.beam_traileffect = FALSE;
 922                                 self.beam_hiteffect = particleeffectnum("healray_impact");
 923                                 self.beam_hitlight[0] = 0;
 924                                 self.beam_hitlight[1] = 1;
 925                                 self.beam_hitlight[2] = 1;
 926                                 self.beam_hitlight[3] = 1;
 927                                 self.beam_muzzleeffect = FALSE; //particleeffectnum("nex_muzzleflash");
 928                                 self.beam_muzzlelight[0] = 0;
 929                                 self.beam_muzzlelight[1] = 1;
 930                                 self.beam_muzzlelight[2] = 1;
 931                                 self.beam_muzzlelight[3] = 1;
 932                                 self.beam_image = "particles/lgbeam";
 933                                 setmodel(flash, "models/flash.md3");
 934                                 flash.alpha = self.beam_alpha;
 935                                 flash.colormod = self.beam_color;
 936                                 flash.scale = 0.5;
 937                                 break;
 938                         }
 939                         case ARC_BT_HIT:
 940                         {
 941                                 self.beam_color = '1 0 1';
 942                                 self.beam_alpha = 0.5;
 943                                 self.beam_thickness = 8;
 944                                 self.beam_traileffect = particleeffectnum("nex_beam");
 945                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 946                                 self.beam_hitlight[0] = 20;
 947                                 self.beam_hitlight[1] = 1;
 948                                 self.beam_hitlight[2] = 0;
 949                                 self.beam_hitlight[3] = 0;
 950                                 self.beam_muzzleeffect = FALSE; //particleeffectnum("nex_muzzleflash");
 951                                 self.beam_muzzlelight[0] = 50;
 952                                 self.beam_muzzlelight[1] = 1;
 953                                 self.beam_muzzlelight[2] = 0;
 954                                 self.beam_muzzlelight[3] = 0;
 955                                 self.beam_image = "particles/lgbeam";
 956                                 setmodel(flash, "models/flash.md3");
 957                                 flash.alpha = self.beam_alpha;
 958                                 flash.colormod = self.beam_color;
 959                                 flash.scale = 0.5;
 960                                 break;
 961                         }
 962                         case ARC_BT_BURST_MISS:
 963                         {
 964                                 self.beam_color = '-1 -1 1';
 965                                 self.beam_alpha = 0.5;
 966                                 self.beam_thickness = 14;
 967                                 self.beam_traileffect = FALSE;
 968                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 969                                 self.beam_hitlight[0] = 0;
 970                                 self.beam_hitlight[1] = 1;
 971                                 self.beam_hitlight[2] = 1;
 972                                 self.beam_hitlight[3] = 1;
 973                                 self.beam_muzzleeffect = FALSE; //particleeffectnum("nex_muzzleflash");
 974                                 self.beam_muzzlelight[0] = 0;
 975                                 self.beam_muzzlelight[1] = 1;
 976                                 self.beam_muzzlelight[2] = 1;
 977                                 self.beam_muzzlelight[3] = 1;
 978                                 self.beam_image = "particles/lgbeam";
 979                                 setmodel(flash, "models/flash.md3");
 980                                 flash.alpha = self.beam_alpha;
 981                                 flash.colormod = self.beam_color;
 982                                 flash.scale = 0.5;
 983                                 break;
 984                         }
 985                         case ARC_BT_BURST_WALL:
 986                         {
 987                                 self.beam_color = '0.5 0.5 1';
 988                                 self.beam_alpha = 0.5;
 989                                 self.beam_thickness = 14;
 990                                 self.beam_traileffect = FALSE;
 991                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 992                                 self.beam_hitlight[0] = 0;
 993                                 self.beam_hitlight[1] = 1;
 994                                 self.beam_hitlight[2] = 1;
 995                                 self.beam_hitlight[3] = 1;
 996                                 self.beam_muzzleeffect = FALSE; //particleeffectnum("nex_muzzleflash");
 997                                 self.beam_muzzlelight[0] = 0;
 998                                 self.beam_muzzlelight[1] = 1;
 999                                 self.beam_muzzlelight[2] = 1;
1000                                 self.beam_muzzlelight[3] = 1;
1001                                 self.beam_image = "particles/lgbeam";
1002                                 setmodel(flash, "models/flash.md3");
1003                                 flash.alpha = self.beam_alpha;
1004                                 flash.colormod = self.beam_color;
1005                                 flash.scale = 0.5;
1006                                 break;
1007                         }
1008                         case ARC_BT_BURST_HEAL:
1009                         {
1010                                 self.beam_color = '0 1 0';
1011                                 self.beam_alpha = 0.5;
1012                                 self.beam_thickness = 14;
1013                                 self.beam_traileffect = FALSE;
1014                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
1015                                 self.beam_hitlight[0] = 0;
1016                                 self.beam_hitlight[1] = 1;
1017                                 self.beam_hitlight[2] = 1;
1018                                 self.beam_hitlight[3] = 1;
1019                                 self.beam_muzzleeffect = FALSE; //particleeffectnum("nex_muzzleflash");
1020                                 self.beam_muzzlelight[0] = 0;
1021                                 self.beam_muzzlelight[1] = 1;
1022                                 self.beam_muzzlelight[2] = 1;
1023                                 self.beam_muzzlelight[3] = 1;
1024                                 self.beam_image = "particles/lgbeam";
1025                                 setmodel(flash, "models/flash.md3");
1026                                 flash.alpha = self.beam_alpha;
1027                                 flash.colormod = self.beam_color;
1028                                 flash.scale = 0.5;
1029                                 break;
1030                         }
1031                         case ARC_BT_BURST_HIT:
1032                         {
1033                                 self.beam_color = '1 0 1';
1034                                 self.beam_alpha = 0.5;
1035                                 self.beam_thickness = 14;
1036                                 self.beam_traileffect = FALSE;
1037                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
1038                                 self.beam_hitlight[0] = 0;
1039                                 self.beam_hitlight[1] = 1;
1040                                 self.beam_hitlight[2] = 1;
1041                                 self.beam_hitlight[3] = 1;
1042                                 self.beam_muzzleeffect = FALSE; //particleeffectnum("nex_muzzleflash");
1043                                 self.beam_muzzlelight[0] = 0;
1044                                 self.beam_muzzlelight[1] = 1;
1045                                 self.beam_muzzlelight[2] = 1;
1046                                 self.beam_muzzlelight[3] = 1;
1047                                 self.beam_image = "particles/lgbeam";
1048                                 setmodel(flash, "models/flash.md3");
1049                                 flash.alpha = self.beam_alpha;
1050                                 flash.colormod = self.beam_color;
1051                                 flash.scale = 0.5;
1052                                 break;
1053                         }
1054
1055                         // shouldn't be possible, but lets make it colorful if it does :D
1056                         default:
1057                         {
1058                                 self.beam_color = randomvec();
1059                                 self.beam_alpha = 1;
1060                                 self.beam_thickness = 8;
1061                                 self.beam_traileffect = FALSE;
1062                                 self.beam_hiteffect = FALSE;
1063                                 self.beam_hitlight[0] = 0;
1064                                 self.beam_hitlight[1] = 1;
1065                                 self.beam_hitlight[2] = 1;
1066                                 self.beam_hitlight[3] = 1;
1067                                 self.beam_muzzleeffect = FALSE; //particleeffectnum("nex_muzzleflash");
1068                                 self.beam_muzzlelight[0] = 0;
1069                                 self.beam_muzzlelight[1] = 1;
1070                                 self.beam_muzzlelight[2] = 1;
1071                                 self.beam_muzzlelight[3] = 1;
1072                                 self.beam_image = "particles/lgbeam";
1073                                 setmodel(flash, "models/flash.md3");
1074                                 flash.alpha = self.beam_alpha;
1075                                 flash.colormod = self.beam_color;
1076                                 flash.scale = 0.5;
1077                                 break;
1078                         }
1079                 }
1080         }
1081
1082         if(!self.beam_usevieworigin)
1083         {
1084                 InterpolateOrigin_Note();
1085         }
1086 }
1087