cl_collision.c

   1
   2 #include "quakedef.h"
   3 #include "cl_collision.h"
   4
   5 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
   6 float CL_SelectTraceLine(const vec3_t start, const vec3_t pEnd, vec3_t impact, vec3_t normal, int *hitent, entity_render_t *ignoreent)
   7 #else
   8 float CL_SelectTraceLine(const vec3_t start, const vec3_t end, vec3_t impact, vec3_t normal, int *hitent, entity_render_t *ignoreent)
   9 #endif
  10 {
  11         float maxfrac, maxrealfrac;
  12         int n;
  13         entity_render_t *ent;
  14         float tracemins[3], tracemaxs[3];
  15         trace_t trace;
  16         float tempnormal[3], starttransformed[3], endtransformed[3];
  17 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
  18         vec3_t end;
  19         vec_t len = 0;
  20
  21         if(!VectorCompare(start, pEnd))
  22         {
  23                 // TRICK: make the trace 1 qu longer!
  24                 VectorSubtract(pEnd, start, end);
  25                 len = VectorNormalizeLength(end);
  26                 VectorAdd(pEnd, end, end);
  27         }
  28         else
  29                 VectorCopy(pEnd, end);
  30 #endif
  31
  32         memset (&trace, 0 , sizeof(trace_t));
  33         trace.fraction = 1;
  34         trace.realfraction = 1;
  35         VectorCopy (end, trace.endpos);
  36
  37         if (hitent)
  38                 *hitent = 0;
  39         if (cl.worldmodel && cl.worldmodel->TraceLine)
  40                 cl.worldmodel->TraceLine(cl.worldmodel, 0, &trace, start, end, SUPERCONTENTS_SOLID);
  41
  42         if (normal)
  43                 VectorCopy(trace.plane.normal, normal);
  44         maxfrac = trace.fraction;
  45         maxrealfrac = trace.realfraction;
  46
  47         tracemins[0] = min(start[0], end[0]);
  48         tracemaxs[0] = max(start[0], end[0]);
  49         tracemins[1] = min(start[1], end[1]);
  50         tracemaxs[1] = max(start[1], end[1]);
  51         tracemins[2] = min(start[2], end[2]);
  52         tracemaxs[2] = max(start[2], end[2]);
  53
  54         // look for embedded bmodels
  55         for (n = 0;n < cl.num_entities;n++)
  56         {
  57                 if (!cl.entities_active[n])
  58                         continue;
  59                 ent = &cl.entities[n].render;
  60                 if (!BoxesOverlap(ent->mins, ent->maxs, tracemins, tracemaxs))
  61                         continue;
  62                 if (!ent->model || !ent->model->TraceLine)
  63                         continue;
  64                 if ((ent->flags & RENDER_EXTERIORMODEL) && !chase_active.integer)
  65                         continue;
  66                 // if transparent and not selectable, skip entity
  67                 if (!(cl.entities[n].state_current.effects & EF_SELECTABLE) && (ent->alpha < 1 || (ent->effects & (EF_ADDITIVE | EF_NODEPTHTEST))))
  68                         continue;
  69                 if (ent == ignoreent)
  70                         continue;
  71                 Matrix4x4_Transform(&ent->inversematrix, start, starttransformed);
  72                 Matrix4x4_Transform(&ent->inversematrix, end, endtransformed);
  73                 Collision_ClipTrace_Box(&trace, ent->model->normalmins, ent->model->normalmaxs, starttransformed, vec3_origin, vec3_origin, endtransformed, SUPERCONTENTS_SOLID, SUPERCONTENTS_SOLID, 0, NULL);
  74 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
  75                 if(!VectorCompare(start, pEnd))
  76                         Collision_ShortenTrace(&trace, len / (len + 1), pEnd);
  77 #endif
  78                 if (maxrealfrac < trace.realfraction)
  79                         continue;
  80
  81                 ent->model->TraceLine(ent->model, ent->frameblend[0].subframe, &trace, starttransformed, endtransformed, SUPERCONTENTS_SOLID);
  82
  83                 if (maxrealfrac > trace.realfraction)
  84                 {
  85                         if (hitent)
  86                                 *hitent = n;
  87                         maxfrac = trace.fraction;
  88                         maxrealfrac = trace.realfraction;
  89                         if (normal)
  90                         {
  91                                 VectorCopy(trace.plane.normal, tempnormal);
  92                                 Matrix4x4_Transform3x3(&ent->matrix, tempnormal, normal);
  93                         }
  94                 }
  95         }
  96         maxfrac = bound(0, maxfrac, 1);
  97         maxrealfrac = bound(0, maxrealfrac, 1);
  98         //if (maxfrac < 0 || maxfrac > 1) Con_Printf("fraction out of bounds %f %s:%d\n", maxfrac, __FILE__, __LINE__);
  99         if (impact)
 100                 VectorLerp(start, maxfrac, end, impact);
 101         return maxfrac;
 102 }
 103
 104 void CL_FindNonSolidLocation(const vec3_t in, vec3_t out, vec_t radius)
 105 {
 106         // FIXME: check multiple brush models
 107         if (cl.worldmodel && cl.worldmodel->brush.FindNonSolidLocation)
 108                 cl.worldmodel->brush.FindNonSolidLocation(cl.worldmodel, in, out, radius);
 109 }
 110
 111 dp_model_t *CL_GetModelByIndex(int modelindex)
 112 {
 113         if(!modelindex)
 114                 return NULL;
 115         if (modelindex < 0)
 116         {
 117                 modelindex = -(modelindex+1);
 118                 if (modelindex < MAX_MODELS)
 119                         return cl.csqc_model_precache[modelindex];
 120         }
 121         else
 122         {
 123                 if(modelindex < MAX_MODELS)
 124                         return cl.model_precache[modelindex];
 125         }
 126         return NULL;
 127 }
 128
 129 dp_model_t *CL_GetModelFromEdict(prvm_edict_t *ed)
 130 {
 131         if (!ed || ed->priv.server->free)
 132                 return NULL;
 133         return CL_GetModelByIndex((int)ed->fields.client->modelindex);
 134 }
 135
 136 void CL_LinkEdict(prvm_edict_t *ent)
 137 {
 138         vec3_t mins, maxs;
 139
 140         if (ent == prog->edicts)
 141                 return;         // don't add the world
 142
 143         if (ent->priv.server->free)
 144                 return;
 145
 146         // set the abs box
 147
 148         if (ent->fields.client->solid == SOLID_BSP)
 149         {
 150                 dp_model_t *model = CL_GetModelByIndex( (int)ent->fields.client->modelindex );
 151                 if (model == NULL)
 152                 {
 153                         Con_Printf("edict %i: SOLID_BSP with invalid modelindex!\n", PRVM_NUM_FOR_EDICT(ent));
 154
 155                         model = CL_GetModelByIndex( 0 );
 156                 }
 157
 158                 if( model != NULL )
 159                 {
 160                         if (!model->TraceBox && developer.integer >= 1)
 161                                 Con_Printf("edict %i: SOLID_BSP with non-collidable model\n", PRVM_NUM_FOR_EDICT(ent));
 162
 163                         if (ent->fields.client->angles[0] || ent->fields.client->angles[2] || ent->fields.client->avelocity[0] || ent->fields.client->avelocity[2])
 164                         {
 165                                 VectorAdd(ent->fields.client->origin, model->rotatedmins, mins);
 166                                 VectorAdd(ent->fields.client->origin, model->rotatedmaxs, maxs);
 167                         }
 168                         else if (ent->fields.client->angles[1] || ent->fields.client->avelocity[1])
 169                         {
 170                                 VectorAdd(ent->fields.client->origin, model->yawmins, mins);
 171                                 VectorAdd(ent->fields.client->origin, model->yawmaxs, maxs);
 172                         }
 173                         else
 174                         {
 175                                 VectorAdd(ent->fields.client->origin, model->normalmins, mins);
 176                                 VectorAdd(ent->fields.client->origin, model->normalmaxs, maxs);
 177                         }
 178                 }
 179                 else
 180                 {
 181                         // SOLID_BSP with no model is valid, mainly because some QC setup code does so temporarily
 182                         VectorAdd(ent->fields.client->origin, ent->fields.client->mins, mins);
 183                         VectorAdd(ent->fields.client->origin, ent->fields.client->maxs, maxs);
 184                 }
 185         }
 186         else
 187         {
 188                 VectorAdd(ent->fields.client->origin, ent->fields.client->mins, mins);
 189                 VectorAdd(ent->fields.client->origin, ent->fields.client->maxs, maxs);
 190         }
 191
 192         VectorCopy(mins, ent->fields.client->absmin);
 193         VectorCopy(maxs, ent->fields.client->absmax);
 194
 195         World_LinkEdict(&cl.world, ent, ent->fields.client->absmin, ent->fields.client->absmax);
 196 }
 197
 198 int CL_GenericHitSuperContentsMask(const prvm_edict_t *passedict)
 199 {
 200         prvm_eval_t *val;
 201         if (passedict)
 202         {
 203                 val = PRVM_EDICTFIELDVALUE(passedict, prog->fieldoffsets.dphitcontentsmask);
 204                 if (val && val->_float)
 205                         return (int)val->_float;
 206                 else if (passedict->fields.client->solid == SOLID_SLIDEBOX)
 207                 {
 208                         if ((int)passedict->fields.client->flags & FL_MONSTER)
 209                                 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_MONSTERCLIP;
 210                         else
 211                                 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_PLAYERCLIP;
 212                 }
 213                 else if (passedict->fields.client->solid == SOLID_CORPSE)
 214                         return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY;
 215                 else if (passedict->fields.client->solid == SOLID_TRIGGER)
 216                         return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY;
 217                 else
 218                         return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_CORPSE;
 219         }
 220         else
 221                 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_CORPSE;
 222 }
 223
 224 /*
 225 ==================
 226 CL_Move
 227 ==================
 228 */
 229 trace_t CL_TracePoint(const vec3_t start, int type, prvm_edict_t *passedict, int hitsupercontentsmask, qboolean hitnetworkbrushmodels, qboolean hitnetworkplayers, int *hitnetworkentity, qboolean hitcsqcentities)
 230 {
 231         int i, bodysupercontents;
 232         int passedictprog;
 233         prvm_edict_t *traceowner, *touch;
 234         trace_t trace;
 235         // bounding box of entire move area
 236         vec3_t clipboxmins, clipboxmaxs;
 237         // size when clipping against monsters
 238         vec3_t clipmins2, clipmaxs2;
 239         // start and end origin of move
 240         vec3_t clipstart;
 241         // trace results
 242         trace_t cliptrace;
 243         // matrices to transform into/out of other entity's space
 244         matrix4x4_t matrix, imatrix;
 245         // model of other entity
 246         dp_model_t *model;
 247         // list of entities to test for collisions
 248         int numtouchedicts;
 249         prvm_edict_t *touchedicts[MAX_EDICTS];
 250
 251         if (hitnetworkentity)
 252                 *hitnetworkentity = 0;
 253
 254         VectorCopy(start, clipstart);
 255         VectorClear(clipmins2);
 256         VectorClear(clipmaxs2);
 257 #if COLLISIONPARANOID >= 3
 258         Con_Printf("move(%f %f %f)", clipstart[0], clipstart[1], clipstart[2]);
 259 #endif
 260
 261         // clip to world
 262         Collision_ClipPointToWorld(&cliptrace, cl.worldmodel, clipstart, hitsupercontentsmask);
 263         cliptrace.bmodelstartsolid = cliptrace.startsolid;
 264         if (cliptrace.startsolid || cliptrace.fraction < 1)
 265                 cliptrace.ent = prog ? prog->edicts : NULL;
 266         if (type == MOVE_WORLDONLY)
 267                 goto finished;
 268
 269         if (type == MOVE_MISSILE)
 270         {
 271                 // LordHavoc: modified this, was = -15, now -= 15
 272                 for (i = 0;i < 3;i++)
 273                 {
 274                         clipmins2[i] -= 15;
 275                         clipmaxs2[i] += 15;
 276                 }
 277         }
 278
 279         // create the bounding box of the entire move
 280         for (i = 0;i < 3;i++)
 281         {
 282                 clipboxmins[i] = clipstart[i] - 1;
 283                 clipboxmaxs[i] = clipstart[i] + 1;
 284         }
 285
 286         // debug override to test against everything
 287         if (sv_debugmove.integer)
 288         {
 289                 clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
 290                 clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  999999999;
 291         }
 292
 293         // if the passedict is world, make it NULL (to avoid two checks each time)
 294         // this checks prog because this function is often called without a CSQC
 295         // VM context
 296         if (prog == NULL || passedict == prog->edicts)
 297                 passedict = NULL;
 298         // precalculate prog value for passedict for comparisons
 299         passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
 300         // precalculate passedict's owner edict pointer for comparisons
 301         traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.client->owner) : NULL;
 302
 303         // collide against network entities
 304         if (hitnetworkbrushmodels)
 305         {
 306                 for (i = 0;i < cl.num_brushmodel_entities;i++)
 307                 {
 308                         entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
 309                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
 310                                 continue;
 311                         Collision_ClipPointToGenericEntity(&trace, ent->model, ent->frameblend[0].subframe, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, hitsupercontentsmask);
 312                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 313                                 *hitnetworkentity = cl.brushmodel_entities[i];
 314                         Collision_CombineTraces(&cliptrace, &trace, NULL, true);
 315                 }
 316         }
 317
 318         // collide against player entities
 319         if (hitnetworkplayers)
 320         {
 321                 vec3_t origin, entmins, entmaxs;
 322                 matrix4x4_t entmatrix, entinversematrix;
 323
 324                 if(gamemode == GAME_NEXUIZ)
 325                 {
 326                         // don't hit network players, if we are a nonsolid player
 327                         if(cl.scores[cl.playerentity-1].frags == -666 || cl.scores[cl.playerentity-1].frags == -616)
 328                                 goto skipnetworkplayers;
 329                 }
 330
 331                 for (i = 1;i <= cl.maxclients;i++)
 332                 {
 333                         entity_render_t *ent = &cl.entities[i].render;
 334
 335                         // don't hit ourselves
 336                         if (i == cl.playerentity)
 337                                 continue;
 338
 339                         // don't hit players that don't exist
 340                         if (!cl.scores[i-1].name[0])
 341                                 continue;
 342
 343                         if(gamemode == GAME_NEXUIZ)
 344                         {
 345                                 // don't hit spectators or nonsolid players
 346                                 if(cl.scores[i-1].frags == -666 || cl.scores[i-1].frags == -616)
 347                                         continue;
 348                         }
 349
 350                         Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
 351                         VectorAdd(origin, cl.playerstandmins, entmins);
 352                         VectorAdd(origin, cl.playerstandmaxs, entmaxs);
 353                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
 354                                 continue;
 355                         Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
 356                         Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
 357                         Collision_ClipPointToGenericEntity(&trace, NULL, 0, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, hitsupercontentsmask);
 358                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 359                                 *hitnetworkentity = i;
 360                         Collision_CombineTraces(&cliptrace, &trace, NULL, false);
 361                 }
 362
 363 skipnetworkplayers:
 364                 ;
 365         }
 366
 367         // clip to entities
 368         // because this uses World_EntitiestoBox, we know all entity boxes overlap
 369         // the clip region, so we can skip culling checks in the loop below
 370         // note: if prog is NULL then there won't be any linked entities
 371         numtouchedicts = 0;
 372         if (hitcsqcentities && prog != NULL)
 373         {
 374                 numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
 375                 if (numtouchedicts > MAX_EDICTS)
 376                 {
 377                         // this never happens
 378                         Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
 379                         numtouchedicts = MAX_EDICTS;
 380                 }
 381         }
 382         for (i = 0;i < numtouchedicts;i++)
 383         {
 384                 touch = touchedicts[i];
 385
 386                 if (touch->fields.client->solid < SOLID_BBOX)
 387                         continue;
 388                 if (type == MOVE_NOMONSTERS && touch->fields.client->solid != SOLID_BSP)
 389                         continue;
 390
 391                 if (passedict)
 392                 {
 393                         // don't clip against self
 394                         if (passedict == touch)
 395                                 continue;
 396                         // don't clip owned entities against owner
 397                         if (traceowner == touch)
 398                                 continue;
 399                         // don't clip owner against owned entities
 400                         if (passedictprog == touch->fields.client->owner)
 401                                 continue;
 402                         // don't clip points against points (they can't collide)
 403                         if (VectorCompare(touch->fields.client->mins, touch->fields.client->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.client->flags & FL_MONSTER)))
 404                                 continue;
 405                 }
 406
 407                 bodysupercontents = touch->fields.client->solid == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
 408
 409                 // might interact, so do an exact clip
 410                 model = NULL;
 411                 if ((int) touch->fields.client->solid == SOLID_BSP || type == MOVE_HITMODEL)
 412                 {
 413                         unsigned int modelindex = (unsigned int)touch->fields.client->modelindex;
 414                         // if the modelindex is 0, it shouldn't be SOLID_BSP!
 415                         if (modelindex > 0 && modelindex < MAX_MODELS)
 416                                 model = cl.model_precache[(int)touch->fields.client->modelindex];
 417                 }
 418                 if (model)
 419                         Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2], touch->fields.client->angles[0], touch->fields.client->angles[1], touch->fields.client->angles[2], 1);
 420                 else
 421                         Matrix4x4_CreateTranslate(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2]);
 422                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
 423                 if ((int)touch->fields.client->flags & FL_MONSTER)
 424                         Collision_ClipToGenericEntity(&trace, model, (int) touch->fields.client->frame, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipstart, hitsupercontentsmask);
 425                 else
 426                         Collision_ClipPointToGenericEntity(&trace, model, (int) touch->fields.client->frame, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, hitsupercontentsmask);
 427
 428                 if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 429                         *hitnetworkentity = 0;
 430                 Collision_CombineTraces(&cliptrace, &trace, (void *)touch, touch->fields.client->solid == SOLID_BSP);
 431         }
 432
 433 finished:
 434         return cliptrace;
 435 }
 436
 437 /*
 438 ==================
 439 CL_TraceLine
 440 ==================
 441 */
 442 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 443 trace_t CL_TraceLine(const vec3_t start, const vec3_t pEnd, int type, prvm_edict_t *passedict, int hitsupercontentsmask, qboolean hitnetworkbrushmodels, qboolean hitnetworkplayers, int *hitnetworkentity, qboolean hitcsqcentities)
 444 #else
 445 trace_t CL_TraceLine(const vec3_t start, const vec3_t end, int type, prvm_edict_t *passedict, int hitsupercontentsmask, qboolean hitnetworkbrushmodels, qboolean hitnetworkplayers, int *hitnetworkentity, qboolean hitcsqcentities)
 446 #endif
 447 {
 448         int i, bodysupercontents;
 449         int passedictprog;
 450         prvm_edict_t *traceowner, *touch;
 451         trace_t trace;
 452         // bounding box of entire move area
 453         vec3_t clipboxmins, clipboxmaxs;
 454         // size when clipping against monsters
 455         vec3_t clipmins2, clipmaxs2;
 456         // start and end origin of move
 457         vec3_t clipstart, clipend;
 458         // trace results
 459         trace_t cliptrace;
 460         // matrices to transform into/out of other entity's space
 461         matrix4x4_t matrix, imatrix;
 462         // model of other entity
 463         dp_model_t *model;
 464         // list of entities to test for collisions
 465         int numtouchedicts;
 466         prvm_edict_t *touchedicts[MAX_EDICTS];
 467 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 468         vec3_t end;
 469         vec_t len = 0;
 470
 471         if(!VectorCompare(start, pEnd))
 472         {
 473                 // TRICK: make the trace 1 qu longer!
 474                 VectorSubtract(pEnd, start, end);
 475                 len = VectorNormalizeLength(end);
 476                 VectorAdd(pEnd, end, end);
 477         }
 478         else
 479                 VectorCopy(pEnd, end);
 480 #endif
 481
 482         if (VectorCompare(start, end))
 483                 return CL_TracePoint(start, type, passedict, hitsupercontentsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities);
 484
 485         if (hitnetworkentity)
 486                 *hitnetworkentity = 0;
 487
 488         VectorCopy(start, clipstart);
 489         VectorCopy(end, clipend);
 490         VectorClear(clipmins2);
 491         VectorClear(clipmaxs2);
 492 #if COLLISIONPARANOID >= 3
 493         Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
 494 #endif
 495
 496         // clip to world
 497         Collision_ClipLineToWorld(&cliptrace, cl.worldmodel, clipstart, clipend, hitsupercontentsmask);
 498         cliptrace.bmodelstartsolid = cliptrace.startsolid;
 499         if (cliptrace.startsolid || cliptrace.fraction < 1)
 500                 cliptrace.ent = prog ? prog->edicts : NULL;
 501         if (type == MOVE_WORLDONLY)
 502                 goto finished;
 503
 504         if (type == MOVE_MISSILE)
 505         {
 506                 // LordHavoc: modified this, was = -15, now -= 15
 507                 for (i = 0;i < 3;i++)
 508                 {
 509                         clipmins2[i] -= 15;
 510                         clipmaxs2[i] += 15;
 511                 }
 512         }
 513
 514         // create the bounding box of the entire move
 515         for (i = 0;i < 3;i++)
 516         {
 517                 clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + clipmins2[i] - 1;
 518                 clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + clipmaxs2[i] + 1;
 519         }
 520
 521         // debug override to test against everything
 522         if (sv_debugmove.integer)
 523         {
 524                 clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
 525                 clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  999999999;
 526         }
 527
 528         // if the passedict is world, make it NULL (to avoid two checks each time)
 529         // this checks prog because this function is often called without a CSQC
 530         // VM context
 531         if (prog == NULL || passedict == prog->edicts)
 532                 passedict = NULL;
 533         // precalculate prog value for passedict for comparisons
 534         passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
 535         // precalculate passedict's owner edict pointer for comparisons
 536         traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.client->owner) : NULL;
 537
 538         // collide against network entities
 539         if (hitnetworkbrushmodels)
 540         {
 541                 for (i = 0;i < cl.num_brushmodel_entities;i++)
 542                 {
 543                         entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
 544                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
 545                                 continue;
 546                         Collision_ClipLineToGenericEntity(&trace, ent->model, ent->frameblend[0].subframe, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, end, hitsupercontentsmask);
 547                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 548                                 *hitnetworkentity = cl.brushmodel_entities[i];
 549                         Collision_CombineTraces(&cliptrace, &trace, NULL, true);
 550                 }
 551         }
 552
 553         // collide against player entities
 554         if (hitnetworkplayers)
 555         {
 556                 vec3_t origin, entmins, entmaxs;
 557                 matrix4x4_t entmatrix, entinversematrix;
 558
 559                 if(gamemode == GAME_NEXUIZ)
 560                 {
 561                         // don't hit network players, if we are a nonsolid player
 562                         if(cl.scores[cl.playerentity-1].frags == -666 || cl.scores[cl.playerentity-1].frags == -616)
 563                                 goto skipnetworkplayers;
 564                 }
 565
 566                 for (i = 1;i <= cl.maxclients;i++)
 567                 {
 568                         entity_render_t *ent = &cl.entities[i].render;
 569
 570                         // don't hit ourselves
 571                         if (i == cl.playerentity)
 572                                 continue;
 573
 574                         // don't hit players that don't exist
 575                         if (!cl.scores[i-1].name[0])
 576                                 continue;
 577
 578                         if(gamemode == GAME_NEXUIZ)
 579                         {
 580                                 // don't hit spectators or nonsolid players
 581                                 if(cl.scores[i-1].frags == -666 || cl.scores[i-1].frags == -616)
 582                                         continue;
 583                         }
 584
 585                         Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
 586                         VectorAdd(origin, cl.playerstandmins, entmins);
 587                         VectorAdd(origin, cl.playerstandmaxs, entmaxs);
 588                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
 589                                 continue;
 590                         Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
 591                         Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
 592                         Collision_ClipLineToGenericEntity(&trace, NULL, 0, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, end, hitsupercontentsmask);
 593                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 594                                 *hitnetworkentity = i;
 595                         Collision_CombineTraces(&cliptrace, &trace, NULL, false);
 596                 }
 597
 598 skipnetworkplayers:
 599                 ;
 600         }
 601
 602         // clip to entities
 603         // because this uses World_EntitiestoBox, we know all entity boxes overlap
 604         // the clip region, so we can skip culling checks in the loop below
 605         // note: if prog is NULL then there won't be any linked entities
 606         numtouchedicts = 0;
 607         if (hitcsqcentities && prog != NULL)
 608         {
 609                 numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
 610                 if (numtouchedicts > MAX_EDICTS)
 611                 {
 612                         // this never happens
 613                         Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
 614                         numtouchedicts = MAX_EDICTS;
 615                 }
 616         }
 617         for (i = 0;i < numtouchedicts;i++)
 618         {
 619                 touch = touchedicts[i];
 620
 621                 if (touch->fields.client->solid < SOLID_BBOX)
 622                         continue;
 623                 if (type == MOVE_NOMONSTERS && touch->fields.client->solid != SOLID_BSP)
 624                         continue;
 625
 626                 if (passedict)
 627                 {
 628                         // don't clip against self
 629                         if (passedict == touch)
 630                                 continue;
 631                         // don't clip owned entities against owner
 632                         if (traceowner == touch)
 633                                 continue;
 634                         // don't clip owner against owned entities
 635                         if (passedictprog == touch->fields.client->owner)
 636                                 continue;
 637                         // don't clip points against points (they can't collide)
 638                         if (VectorCompare(touch->fields.client->mins, touch->fields.client->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.client->flags & FL_MONSTER)))
 639                                 continue;
 640                 }
 641
 642                 bodysupercontents = touch->fields.client->solid == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
 643
 644                 // might interact, so do an exact clip
 645                 model = NULL;
 646                 if ((int) touch->fields.client->solid == SOLID_BSP || type == MOVE_HITMODEL)
 647                 {
 648                         unsigned int modelindex = (unsigned int)touch->fields.client->modelindex;
 649                         // if the modelindex is 0, it shouldn't be SOLID_BSP!
 650                         if (modelindex > 0 && modelindex < MAX_MODELS)
 651                                 model = cl.model_precache[(int)touch->fields.client->modelindex];
 652                 }
 653                 if (model)
 654                         Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2], touch->fields.client->angles[0], touch->fields.client->angles[1], touch->fields.client->angles[2], 1);
 655                 else
 656                         Matrix4x4_CreateTranslate(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2]);
 657                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
 658                 if (type == MOVE_MISSILE && (int)touch->fields.client->flags & FL_MONSTER)
 659                         Collision_ClipToGenericEntity(&trace, model, (int) touch->fields.client->frame, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipend, hitsupercontentsmask);
 660                 else
 661                         Collision_ClipLineToGenericEntity(&trace, model, (int) touch->fields.client->frame, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipend, hitsupercontentsmask);
 662
 663                 if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 664                         *hitnetworkentity = 0;
 665                 Collision_CombineTraces(&cliptrace, &trace, (void *)touch, touch->fields.client->solid == SOLID_BSP);
 666         }
 667
 668 finished:
 669 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 670         if(!VectorCompare(start, pEnd))
 671                 Collision_ShortenTrace(&cliptrace, len / (len + 1), pEnd);
 672 #endif
 673         return cliptrace;
 674 }
 675
 676 /*
 677 ==================
 678 CL_Move
 679 ==================
 680 */
 681 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 682 trace_t CL_TraceBox(const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t pEnd, int type, prvm_edict_t *passedict, int hitsupercontentsmask, qboolean hitnetworkbrushmodels, qboolean hitnetworkplayers, int *hitnetworkentity, qboolean hitcsqcentities)
 683 #else
 684 trace_t CL_TraceBox(const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int type, prvm_edict_t *passedict, int hitsupercontentsmask, qboolean hitnetworkbrushmodels, qboolean hitnetworkplayers, int *hitnetworkentity, qboolean hitcsqcentities)
 685 #endif
 686 {
 687         vec3_t hullmins, hullmaxs;
 688         int i, bodysupercontents;
 689         int passedictprog;
 690         qboolean pointtrace;
 691         prvm_edict_t *traceowner, *touch;
 692         trace_t trace;
 693         // bounding box of entire move area
 694         vec3_t clipboxmins, clipboxmaxs;
 695         // size of the moving object
 696         vec3_t clipmins, clipmaxs;
 697         // size when clipping against monsters
 698         vec3_t clipmins2, clipmaxs2;
 699         // start and end origin of move
 700         vec3_t clipstart, clipend;
 701         // trace results
 702         trace_t cliptrace;
 703         // matrices to transform into/out of other entity's space
 704         matrix4x4_t matrix, imatrix;
 705         // model of other entity
 706         dp_model_t *model;
 707         // list of entities to test for collisions
 708         int numtouchedicts;
 709         prvm_edict_t *touchedicts[MAX_EDICTS];
 710 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 711         vec3_t end;
 712         vec_t len = 0;
 713
 714         if(!VectorCompare(start, pEnd))
 715         {
 716                 // TRICK: make the trace 1 qu longer!
 717                 VectorSubtract(pEnd, start, end);
 718                 len = VectorNormalizeLength(end);
 719                 VectorAdd(pEnd, end, end);
 720         }
 721         else
 722                 VectorCopy(pEnd, end);
 723 #endif
 724
 725         if (VectorCompare(mins, maxs))
 726         {
 727                 vec3_t shiftstart, shiftend;
 728                 VectorAdd(start, mins, shiftstart);
 729                 VectorAdd(end, mins, shiftend);
 730                 if (VectorCompare(start, end))
 731                         trace = CL_TracePoint(shiftstart, type, passedict, hitsupercontentsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities);
 732                 else
 733                         trace = CL_TraceLine(shiftstart, shiftend, type, passedict, hitsupercontentsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities);
 734                 VectorSubtract(trace.endpos, mins, trace.endpos);
 735                 return trace;
 736         }
 737
 738         if (hitnetworkentity)
 739                 *hitnetworkentity = 0;
 740
 741         VectorCopy(start, clipstart);
 742         VectorCopy(end, clipend);
 743         VectorCopy(mins, clipmins);
 744         VectorCopy(maxs, clipmaxs);
 745         VectorCopy(mins, clipmins2);
 746         VectorCopy(maxs, clipmaxs2);
 747 #if COLLISIONPARANOID >= 3
 748         Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
 749 #endif
 750
 751         // clip to world
 752         Collision_ClipToWorld(&cliptrace, cl.worldmodel, clipstart, clipmins, clipmaxs, clipend, hitsupercontentsmask);
 753         cliptrace.bmodelstartsolid = cliptrace.startsolid;
 754         if (cliptrace.startsolid || cliptrace.fraction < 1)
 755                 cliptrace.ent = prog ? prog->edicts : NULL;
 756         if (type == MOVE_WORLDONLY)
 757                 goto finished;
 758
 759         if (type == MOVE_MISSILE)
 760         {
 761                 // LordHavoc: modified this, was = -15, now -= 15
 762                 for (i = 0;i < 3;i++)
 763                 {
 764                         clipmins2[i] -= 15;
 765                         clipmaxs2[i] += 15;
 766                 }
 767         }
 768
 769         // get adjusted box for bmodel collisions if the world is q1bsp or hlbsp
 770         if (cl.worldmodel && cl.worldmodel->brush.RoundUpToHullSize)
 771                 cl.worldmodel->brush.RoundUpToHullSize(cl.worldmodel, clipmins, clipmaxs, hullmins, hullmaxs);
 772         else
 773         {
 774                 VectorCopy(clipmins, hullmins);
 775                 VectorCopy(clipmaxs, hullmaxs);
 776         }
 777
 778         // create the bounding box of the entire move
 779         for (i = 0;i < 3;i++)
 780         {
 781                 clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + min(hullmins[i], clipmins2[i]) - 1;
 782                 clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + max(hullmaxs[i], clipmaxs2[i]) + 1;
 783         }
 784
 785         // debug override to test against everything
 786         if (sv_debugmove.integer)
 787         {
 788                 clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
 789                 clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  999999999;
 790         }
 791
 792         // if the passedict is world, make it NULL (to avoid two checks each time)
 793         // this checks prog because this function is often called without a CSQC
 794         // VM context
 795         if (prog == NULL || passedict == prog->edicts)
 796                 passedict = NULL;
 797         // precalculate prog value for passedict for comparisons
 798         passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
 799         // figure out whether this is a point trace for comparisons
 800         pointtrace = VectorCompare(clipmins, clipmaxs);
 801         // precalculate passedict's owner edict pointer for comparisons
 802         traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.client->owner) : NULL;
 803
 804         // collide against network entities
 805         if (hitnetworkbrushmodels)
 806         {
 807                 for (i = 0;i < cl.num_brushmodel_entities;i++)
 808                 {
 809                         entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
 810                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
 811                                 continue;
 812                         Collision_ClipToGenericEntity(&trace, ent->model, ent->frameblend[0].subframe, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, mins, maxs, end, hitsupercontentsmask);
 813                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 814                                 *hitnetworkentity = cl.brushmodel_entities[i];
 815                         Collision_CombineTraces(&cliptrace, &trace, NULL, true);
 816                 }
 817         }
 818
 819         // collide against player entities
 820         if (hitnetworkplayers)
 821         {
 822                 vec3_t origin, entmins, entmaxs;
 823                 matrix4x4_t entmatrix, entinversematrix;
 824
 825                 if(gamemode == GAME_NEXUIZ)
 826                 {
 827                         // don't hit network players, if we are a nonsolid player
 828                         if(cl.scores[cl.playerentity-1].frags == -666 || cl.scores[cl.playerentity-1].frags == -616)
 829                                 goto skipnetworkplayers;
 830                 }
 831
 832                 for (i = 1;i <= cl.maxclients;i++)
 833                 {
 834                         entity_render_t *ent = &cl.entities[i].render;
 835
 836                         // don't hit ourselves
 837                         if (i == cl.playerentity)
 838                                 continue;
 839
 840                         // don't hit players that don't exist
 841                         if (!cl.scores[i-1].name[0])
 842                                 continue;
 843
 844                         if(gamemode == GAME_NEXUIZ)
 845                         {
 846                                 // don't hit spectators or nonsolid players
 847                                 if(cl.scores[i-1].frags == -666 || cl.scores[i-1].frags == -616)
 848                                         continue;
 849                         }
 850
 851                         Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
 852                         VectorAdd(origin, cl.playerstandmins, entmins);
 853                         VectorAdd(origin, cl.playerstandmaxs, entmaxs);
 854                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
 855                                 continue;
 856                         Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
 857                         Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
 858                         Collision_ClipToGenericEntity(&trace, NULL, 0, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, mins, maxs, end, hitsupercontentsmask);
 859                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 860                                 *hitnetworkentity = i;
 861                         Collision_CombineTraces(&cliptrace, &trace, NULL, false);
 862                 }
 863
 864 skipnetworkplayers:
 865                 ;
 866         }
 867
 868         // clip to entities
 869         // because this uses World_EntitiestoBox, we know all entity boxes overlap
 870         // the clip region, so we can skip culling checks in the loop below
 871         // note: if prog is NULL then there won't be any linked entities
 872         numtouchedicts = 0;
 873         if (hitcsqcentities && prog != NULL)
 874         {
 875                 numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
 876                 if (numtouchedicts > MAX_EDICTS)
 877                 {
 878                         // this never happens
 879                         Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
 880                         numtouchedicts = MAX_EDICTS;
 881                 }
 882         }
 883         for (i = 0;i < numtouchedicts;i++)
 884         {
 885                 touch = touchedicts[i];
 886
 887                 if (touch->fields.client->solid < SOLID_BBOX)
 888                         continue;
 889                 if (type == MOVE_NOMONSTERS && touch->fields.client->solid != SOLID_BSP)
 890                         continue;
 891
 892                 if (passedict)
 893                 {
 894                         // don't clip against self
 895                         if (passedict == touch)
 896                                 continue;
 897                         // don't clip owned entities against owner
 898                         if (traceowner == touch)
 899                                 continue;
 900                         // don't clip owner against owned entities
 901                         if (passedictprog == touch->fields.client->owner)
 902                                 continue;
 903                         // don't clip points against points (they can't collide)
 904                         if (pointtrace && VectorCompare(touch->fields.client->mins, touch->fields.client->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.client->flags & FL_MONSTER)))
 905                                 continue;
 906                 }
 907
 908                 bodysupercontents = touch->fields.client->solid == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
 909
 910                 // might interact, so do an exact clip
 911                 model = NULL;
 912                 if ((int) touch->fields.client->solid == SOLID_BSP || type == MOVE_HITMODEL)
 913                 {
 914                         unsigned int modelindex = (unsigned int)touch->fields.client->modelindex;
 915                         // if the modelindex is 0, it shouldn't be SOLID_BSP!
 916                         if (modelindex > 0 && modelindex < MAX_MODELS)
 917                                 model = cl.model_precache[(int)touch->fields.client->modelindex];
 918                 }
 919                 if (model)
 920                         Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2], touch->fields.client->angles[0], touch->fields.client->angles[1], touch->fields.client->angles[2], 1);
 921                 else
 922                         Matrix4x4_CreateTranslate(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2]);
 923                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
 924                 if ((int)touch->fields.client->flags & FL_MONSTER)
 925                         Collision_ClipToGenericEntity(&trace, model, (int) touch->fields.client->frame, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipend, hitsupercontentsmask);
 926                 else
 927                         Collision_ClipToGenericEntity(&trace, model, (int) touch->fields.client->frame, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins, clipmaxs, clipend, hitsupercontentsmask);
 928
 929                 if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 930                         *hitnetworkentity = 0;
 931                 Collision_CombineTraces(&cliptrace, &trace, (void *)touch, touch->fields.client->solid == SOLID_BSP);
 932         }
 933
 934 finished:
 935 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 936         if(!VectorCompare(start, pEnd))
 937                 Collision_ShortenTrace(&cliptrace, len / (len + 1), pEnd);
 938 #endif
 939         return cliptrace;
 940 }