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_muzzleflash;
 371 .string beam_image;
 372
 373 // WEAPONTODO: Add beam_hitlight and beam_muzzlelight which uses direct real time light control
 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                 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                 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         InterpolateOrigin_Do();
 473
 474         // origin = beam starting origin
 475         // v_angle = wanted/aim direction
 476         // angles = current direction of beam
 477
 478         vector start_pos;
 479         vector wantdir; //= view_forward;
 480         vector beamdir; //= self.beam_dir;
 481
 482         float segments;
 483         if(self.beam_usevieworigin)
 484         {
 485                 // WEAPONTODO:
 486                 // Currently we have to replicate nearly the same method of figuring
 487                 // out the shotdir that the server does... Ideally in the future we
 488                 // should be able to acquire this from a generalized function built
 489                 // into a weapon system for client code.
 490
 491                 // find where we are aiming
 492                 makevectors(view_angles);
 493
 494                 // decide upon start position
 495                 if(self.beam_usevieworigin == 2)
 496                         { start_pos = view_origin; }
 497                 else
 498                         { start_pos = self.origin; }
 499
 500                 // trace forward with an estimation
 501                 WarpZone_TraceLine(start_pos, start_pos + view_forward * self.beam_range, MOVE_NOMONSTERS, self);
 502
 503                 // untransform in case our trace went through a warpzone
 504                 vector vf, vr, vu;
 505                 vf = view_forward;
 506                 vr = view_right;
 507                 vu = view_up;
 508                 vector shothitpos = WarpZone_UnTransformOrigin(WarpZone_trace_transform, trace_endpos); // warpzone support
 509                 view_forward = vf;
 510                 view_right = vr;
 511                 view_up = vu;
 512
 513                 // un-adjust trueaim if shotend is too close
 514                 if(vlen(shothitpos - view_origin) < g_trueaim_minrange)
 515                         shothitpos = view_origin + (view_forward * g_trueaim_minrange);
 516
 517                 // move shot origin to the actual gun muzzle origin
 518                 vector origin_offset = view_forward * self.beam_shotorigin_x + view_right * -self.beam_shotorigin_y + view_up * self.beam_shotorigin_z;
 519                 start_pos = start_pos + origin_offset;
 520
 521                 // calculate the aim direction now
 522                 wantdir = normalize(shothitpos - start_pos);
 523
 524                 if(!self.beam_initialized)
 525                 {
 526                         self.beam_dir = wantdir;
 527                         self.beam_initialized = TRUE;
 528                 }
 529
 530                 // WEAPONTODO: Calculate segments dyanmically similarly to the server code
 531                 segments = 20;
 532                 if(self.beam_dir != wantdir)
 533                 {
 534                         float angle = ceil(vlen(wantdir - self.beam_dir) * RAD2DEG);
 535                         float anglelimit;
 536                         if(angle && (angle > self.beam_maxangle))
 537                         {
 538                                 // if the angle is greater than maxangle, force the blendfactor to make this the maximum factor
 539                                 anglelimit = min(self.beam_maxangle / angle, 1);
 540                         }
 541                         else
 542                         {
 543                                 // the radius is not too far yet, no worries :D
 544                                 anglelimit = 1;
 545                         }
 546
 547                         // calculate how much we're going to move the end of the beam to the want position
 548                         float blendfactor = bound(0, anglelimit * (1 - (self.beam_returnspeed * frametime)), 1);
 549                         self.beam_dir = normalize((wantdir * (1 - blendfactor)) + (self.beam_dir * blendfactor));
 550
 551                         // WEAPONTODO (server and client):
 552                         // blendfactor never actually becomes 0 in this situation, which is a problem
 553                         // regarding precision... this means that self.beam_dir and w_shotdir approach
 554                         // eachother, however they never actually become the same value with this method.
 555
 556                         // Perhaps we should do some form of rounding/snapping?
 557
 558                         // printf("blendfactor = %f\n", blendfactor);
 559
 560                         #if 0
 561                         // calculate how many segments are needed
 562                         float max_allowed_segments;
 563
 564                         if(WEP_CVAR(arc, beam_distancepersegment))
 565                                 max_allowed_segments = min(ARC_MAX_SEGMENTS, 1 + (vlen(w_shotdir / WEP_CVAR(arc, beam_distancepersegment))));
 566                         else
 567                                 max_allowed_segments = ARC_MAX_SEGMENTS;
 568
 569                         if(WEP_CVAR(arc, beam_degreespersegment))
 570                         {
 571                                 segments = min( max(1, ( min(angle, WEP_CVAR(arc, beam_maxangle)) / WEP_CVAR(arc, beam_degreespersegment) ) ), max_allowed_segments );
 572                         }
 573                         else
 574                         {
 575                                 segments = 1;
 576                         }
 577                         #endif
 578                 }
 579                 #if 0
 580                 else
 581                 {
 582                         segments = 1;
 583                 }
 584                 #endif
 585
 586                 // set the beam direction which the rest of the code will refer to
 587                 beamdir = self.beam_dir;
 588
 589                 // finally, set self.angles to the proper direction so that muzzle attachment points in proper direction
 590                 self.angles = fixedvectoangles2(view_forward, view_up);
 591         }
 592         else
 593         {
 594                 // set the values from the provided info from the networked entity
 595                 start_pos = self.origin;
 596                 wantdir = self.v_angle;
 597                 beamdir = self.angles;
 598
 599                 // WEAPONTODO: Calculate segments dyanmically similarly to the server code
 600                 segments = 20;
 601                 #if 0
 602                 if(beamdir != wantdir)
 603                 {
 604                         // calculate how many segments are needed
 605                         float max_allowed_segments;
 606
 607                         if(WEP_CVAR(arc, beam_distancepersegment))
 608                                 max_allowed_segments = min(ARC_MAX_SEGMENTS, 1 + (vlen(w_shotdir / WEP_CVAR(arc, beam_distancepersegment))));
 609                         else
 610                                 max_allowed_segments = ARC_MAX_SEGMENTS;
 611
 612                         if(WEP_CVAR(arc, beam_degreespersegment))
 613                         {
 614                                 segments = min( max(1, ( min(angle, WEP_CVAR(arc, beam_maxangle)) / WEP_CVAR(arc, beam_degreespersegment) ) ), max_allowed_segments );
 615                         }
 616                         else
 617                         {
 618                                 segments = 1;
 619                         }
 620                 }
 621                 else
 622                 {
 623                         segments = 1;
 624                 }
 625                 #endif
 626         }
 627
 628         setorigin(self, start_pos);
 629         self.beam_muzzleentity.angles_z = random() * 360; // WEAPONTODO: use avelocity instead?
 630
 631         vector beam_endpos_estimate = (start_pos + (beamdir * self.beam_range));
 632
 633         Draw_ArcBeam_callback_entity = self;
 634         Draw_ArcBeam_callback_last_thickness = 0;
 635         Draw_ArcBeam_callback_last_top = start_pos;
 636         Draw_ArcBeam_callback_last_bottom = start_pos;
 637
 638         vector last_origin = start_pos;
 639         //vector hitorigin = start_pos;
 640
 641         float i;
 642         for(i = 1; i <= segments; ++i)
 643         {
 644                 // WEAPONTODO (server and client):
 645                 // Segment blend and distance should probably really be calculated in a better way,
 646                 // however I am not sure how to do it properly. There are a few things I have tried,
 647                 // but most of them do not work properly due to my lack of understanding regarding
 648                 // the mathematics behind them.
 649
 650                 // Ideally, we should calculate the positions along a perfect curve
 651                 // between wantdir and self.beam_dir with an option for depth of arc
 652
 653                 // Another issue is that (on the client code) we must separate the
 654                 // curve into multiple rendered curves when handling warpzones.
 655
 656                 // I can handle this by detecting it for each segment, however that
 657                 // is a fairly inefficient method in comparison to having a curved line
 658                 // drawing function similar to Draw_CylindricLine that accepts
 659                 // top and bottom origins as input, this way there would be no
 660                 // overlapping edges when connecting the curved pieces.
 661
 662                 // WEAPONTODO (client):
 663                 // In order to do nice fading and pointing on the starting segment, we must always
 664                 // have that drawn as a separate triangle... However, that is difficult to do when
 665                 // keeping in mind the above problems and also optimizing the amount of segments
 666                 // drawn on screen at any given time. (Automatic beam quality scaling, essentially)
 667
 668                 // calculate this on every segment to ensure that we always reach the full length of the attack
 669                 float segmentblend = bound(0, (i/segments) + self.beam_tightness, 1);
 670                 float segmentdist = vlen(beam_endpos_estimate - last_origin) * (i/segments);
 671
 672                 vector new_dir = normalize( (wantdir * (1 - segmentblend)) + (normalize(beam_endpos_estimate - last_origin) * segmentblend) );
 673                 vector new_origin = last_origin + (new_dir * segmentdist);
 674
 675                 Draw_ArcBeam_callback_segmentdist = segmentdist;
 676                 Draw_ArcBeam_callback_new_dir = new_dir;
 677
 678                 WarpZone_TraceBox_ThroughZone(
 679                         last_origin,
 680                         '0 0 0',
 681                         '0 0 0',
 682                         new_origin,
 683                         MOVE_NORMAL,
 684                         world,
 685                         world,
 686                         Draw_ArcBeam_callback
 687                 );
 688
 689                 // check if we're going to proceed with drawing
 690                 //if(trace_fraction != 1)
 691                 //{
 692                         // we're done with drawing this frame
 693                         //last_origin = last_origin + (new_dir * segmentdist * trace_fraction);
 694                         //hitorigin = last_origin + (new_dir * segmentdist * trace_fraction);
 695                         //break;
 696                 //}
 697                 //else
 698                 {
 699                         // continue onto the next segment
 700                         last_origin = WarpZone_TransformOrigin(WarpZone_trace_transform, new_origin);
 701                         beam_endpos_estimate = WarpZone_TransformOrigin(WarpZone_trace_transform, beam_endpos_estimate);
 702                 }
 703         }
 704
 705         if(self.beam_hiteffect)
 706         {
 707                 pointparticles(self.beam_hiteffect, last_origin, beamdir * -1, frametime * 2);
 708         }
 709         if(self.beam_muzzleflash)
 710         {
 711                 pointparticles(self.beam_muzzleflash, start_pos + wantdir * 20, wantdir * 1000, frametime * 0.1);
 712         }
 713
 714         // cleanup
 715         Draw_ArcBeam_callback_entity = world;
 716         Draw_ArcBeam_callback_new_dir = '0 0 0';
 717         Draw_ArcBeam_callback_segmentdist = 0;
 718         Draw_ArcBeam_callback_last_thickness = 0;
 719         Draw_ArcBeam_callback_last_top = '0 0 0';
 720         Draw_ArcBeam_callback_last_bottom = '0 0 0';
 721 }
 722
 723 void Remove_ArcBeam(void)
 724 {
 725         remove(self.beam_muzzleentity);
 726         sound(self, CH_SHOTS_SINGLE, "misc/null.wav", VOL_BASE, ATTEN_NORM);
 727 }
 728
 729 void Ent_ReadArcBeam(float isnew)
 730 {
 731         float sf = ReadByte();
 732         entity flash;
 733
 734         // self.iflags = IFLAG_ORIGIN | IFLAG_ANGLES | IFLAG_V_ANGLE; // why doesn't this work?
 735         self.iflags = IFLAG_ORIGIN;
 736
 737         InterpolateOrigin_Undo();
 738
 739         if(isnew)
 740         {
 741                 // calculate shot origin offset from gun alignment
 742                 float gunalign = autocvar_cl_gunalign;
 743                 if(gunalign != 1 && gunalign != 2 && gunalign != 4)
 744                         gunalign = 3; // default value
 745                 --gunalign;
 746
 747                 self.beam_shotorigin = arc_shotorigin[gunalign];
 748
 749                 // set other main attributes of the beam
 750                 self.draw = Draw_ArcBeam;
 751                 self.entremove = Remove_ArcBeam;
 752                 sound(self, CH_SHOTS_SINGLE, "weapons/lgbeam_fly.wav", VOL_BASE, ATTEN_NORM);
 753
 754                 flash = spawn();
 755                 flash.owner = self;
 756                 flash.effects = EF_ADDITIVE | EF_FULLBRIGHT;
 757                 flash.drawmask = MASK_NORMAL;
 758                 flash.solid = SOLID_NOT;
 759                 setattachment(flash, self, "");
 760                 setorigin(flash, '0 0 0');
 761
 762                 self.beam_muzzleentity = flash;
 763         }
 764         else
 765         {
 766                 flash = self.beam_muzzleentity;
 767         }
 768
 769         if(sf & 1) // settings information
 770         {
 771                 self.beam_maxangle = ReadShort();
 772                 self.beam_range = ReadCoord();
 773                 self.beam_returnspeed = ReadShort();
 774                 self.beam_tightness = (ReadByte() / 10);
 775
 776                 if(ReadByte())
 777                 {
 778                         if(autocvar_chase_active)
 779                                 { self.beam_usevieworigin = 1; }
 780                         else // use view origin
 781                                 { self.beam_usevieworigin = 2; }
 782                 }
 783                 else
 784                 {
 785                         self.beam_usevieworigin = 0;
 786                 }
 787         }
 788
 789         if(sf & 2) // starting location
 790         {
 791                 self.origin_x = ReadCoord();
 792                 self.origin_y = ReadCoord();
 793                 self.origin_z = ReadCoord();
 794         }
 795         else if(self.beam_usevieworigin) // infer the location from player location
 796         {
 797                 if(self.beam_usevieworigin == 2)
 798                 {
 799                         // use view origin
 800                         self.origin = view_origin;
 801                 }
 802                 else
 803                 {
 804                         // use player origin so that third person display still works
 805                         self.origin = getplayerorigin(player_localnum) + ('0 0 1' * getstati(STAT_VIEWHEIGHT));
 806                 }
 807         }
 808
 809         setorigin(self, self.origin);
 810
 811         if(sf & 4) // want/aim direction
 812         {
 813                 self.v_angle_x = ReadCoord();
 814                 self.v_angle_y = ReadCoord();
 815                 self.v_angle_z = ReadCoord();
 816         }
 817
 818         if(sf & 8) // beam direction
 819         {
 820                 self.angles_x = ReadCoord();
 821                 self.angles_y = ReadCoord();
 822                 self.angles_z = ReadCoord();
 823         }
 824
 825         if(sf & 16) // beam type
 826         {
 827                 self.beam_type = ReadByte();
 828                 switch(self.beam_type)
 829                 {
 830                         case ARC_BT_MISS:
 831                         {
 832                                 self.beam_color = '-1 -1 1';
 833                                 self.beam_alpha = 0.5;
 834                                 self.beam_thickness = 8;
 835                                 self.beam_traileffect = FALSE;
 836                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 837                                 self.beam_muzzleflash = FALSE; //particleeffectnum("nex_muzzleflash");
 838                                 self.beam_image = "particles/lgbeam";
 839                                 setmodel(flash, "models/flash.md3");
 840                                 flash.alpha = self.beam_alpha;
 841                                 flash.colormod = self.beam_color;
 842                                 flash.scale = 0.5;
 843                                 break;
 844                         }
 845                         case ARC_BT_WALL: // grenadelauncher_muzzleflash healray_muzzleflash
 846                         {
 847                                 self.beam_color = '0.5 0.5 1';
 848                                 self.beam_alpha = 0.5;
 849                                 self.beam_thickness = 8;
 850                                 self.beam_traileffect = FALSE;
 851                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 852                                 self.beam_muzzleflash = FALSE; // particleeffectnum("grenadelauncher_muzzleflash");
 853                                 self.beam_image = "particles/lgbeam";
 854                                 setmodel(flash, "models/flash.md3");
 855                                 flash.alpha = self.beam_alpha;
 856                                 flash.colormod = self.beam_color;
 857                                 flash.scale = 0.5;
 858                                 break;
 859                         }
 860                         case ARC_BT_HEAL:
 861                         {
 862                                 self.beam_color = '0 1 0';
 863                                 self.beam_alpha = 0.5;
 864                                 self.beam_thickness = 8;
 865                                 self.beam_traileffect = FALSE;
 866                                 self.beam_hiteffect = particleeffectnum("healray_impact");
 867                                 self.beam_muzzleflash = FALSE; //particleeffectnum("nex_muzzleflash");
 868                                 self.beam_image = "particles/lgbeam";
 869                                 setmodel(flash, "models/flash.md3");
 870                                 flash.alpha = self.beam_alpha;
 871                                 flash.colormod = self.beam_color;
 872                                 flash.scale = 0.5;
 873                                 break;
 874                         }
 875                         case ARC_BT_HIT:
 876                         {
 877                                 self.beam_color = '1 0 1';
 878                                 self.beam_alpha = 0.5;
 879                                 self.beam_thickness = 8;
 880                                 self.beam_traileffect = particleeffectnum("nex_beam");
 881                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 882                                 self.beam_muzzleflash = FALSE; //particleeffectnum("nex_muzzleflash");
 883                                 self.beam_image = "particles/lgbeam";
 884                                 setmodel(flash, "models/flash.md3");
 885                                 flash.alpha = self.beam_alpha;
 886                                 flash.colormod = self.beam_color;
 887                                 flash.scale = 0.5;
 888                                 break;
 889                         }
 890                         case ARC_BT_BURST_MISS:
 891                         {
 892                                 self.beam_color = '-1 -1 1';
 893                                 self.beam_alpha = 0.5;
 894                                 self.beam_thickness = 14;
 895                                 self.beam_traileffect = FALSE;
 896                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 897                                 self.beam_muzzleflash = FALSE; //particleeffectnum("nex_muzzleflash");
 898                                 self.beam_image = "particles/lgbeam";
 899                                 setmodel(flash, "models/flash.md3");
 900                                 flash.alpha = self.beam_alpha;
 901                                 flash.colormod = self.beam_color;
 902                                 flash.scale = 0.5;
 903                                 break;
 904                         }
 905                         case ARC_BT_BURST_WALL:
 906                         {
 907                                 self.beam_color = '0.5 0.5 1';
 908                                 self.beam_alpha = 0.5;
 909                                 self.beam_thickness = 14;
 910                                 self.beam_traileffect = FALSE;
 911                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 912                                 self.beam_muzzleflash = FALSE; //particleeffectnum("nex_muzzleflash");
 913                                 self.beam_image = "particles/lgbeam";
 914                                 setmodel(flash, "models/flash.md3");
 915                                 flash.alpha = self.beam_alpha;
 916                                 flash.colormod = self.beam_color;
 917                                 flash.scale = 0.5;
 918                                 break;
 919                         }
 920                         case ARC_BT_BURST_HEAL:
 921                         {
 922                                 self.beam_color = '0 1 0';
 923                                 self.beam_alpha = 0.5;
 924                                 self.beam_thickness = 14;
 925                                 self.beam_traileffect = FALSE;
 926                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 927                                 self.beam_muzzleflash = FALSE; //particleeffectnum("nex_muzzleflash");
 928                                 self.beam_image = "particles/lgbeam";
 929                                 setmodel(flash, "models/flash.md3");
 930                                 flash.alpha = self.beam_alpha;
 931                                 flash.colormod = self.beam_color;
 932                                 flash.scale = 0.5;
 933                                 break;
 934                         }
 935                         case ARC_BT_BURST_HIT:
 936                         {
 937                                 self.beam_color = '1 0 1';
 938                                 self.beam_alpha = 0.5;
 939                                 self.beam_thickness = 14;
 940                                 self.beam_traileffect = FALSE;
 941                                 self.beam_hiteffect = particleeffectnum("electro_lightning");
 942                                 self.beam_muzzleflash = FALSE; //particleeffectnum("nex_muzzleflash");
 943                                 self.beam_image = "particles/lgbeam";
 944                                 setmodel(flash, "models/flash.md3");
 945                                 flash.alpha = self.beam_alpha;
 946                                 flash.colormod = self.beam_color;
 947                                 flash.scale = 0.5;
 948                                 break;
 949                         }
 950
 951                         // shouldn't be possible, but lets make it colorful if it does :D
 952                         default:
 953                         {
 954                                 self.beam_color = randomvec();
 955                                 self.beam_alpha = 1;
 956                                 self.beam_thickness = 8;
 957                                 self.beam_traileffect = FALSE;
 958                                 self.beam_hiteffect = FALSE;
 959                                 self.beam_muzzleflash = FALSE; //particleeffectnum("nex_muzzleflash");
 960                                 self.beam_image = "particles/lgbeam";
 961                                 setmodel(flash, "models/flash.md3");
 962                                 flash.alpha = self.beam_alpha;
 963                                 flash.colormod = self.beam_color;
 964                                 flash.scale = 0.5;
 965                                 break;
 966                         }
 967                 }
 968         }
 969
 970         InterpolateOrigin_Note();
 971
 972         #if 0
 973         printf(
 974                 "Ent_ReadArcBeam(%d): sf = %d, start = %s, want = %s, dir = %s, type = %d\n",
 975                 isnew,
 976                 sf,
 977                 vtos(self.beam_start),
 978                 vtos(self.v_angle),
 979                 vtos(self.angles),
 980                 self.beam_type
 981         );
 982         #endif
 983 }
 984