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) && collision_endposnudge.value > 0)
  22         {
  23                 // TRICK: make the trace 1 qu longer!
  24                 VectorSubtract(pEnd, start, end);
  25                 len = VectorNormalizeLength(end);
  26                 VectorMA(pEnd, collision_endposnudge.value, 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, NULL, NULL, &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) && collision_endposnudge.value > 0)
  76                         Collision_ShortenTrace(&trace, len / (len + collision_endposnudge.value), pEnd);
  77 #endif
  78                 if (maxrealfrac < trace.realfraction)
  79                         continue;
  80
  81                 ent->model->TraceLine(ent->model, ent->frameblend, ent->skeleton, &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)
 161                                 Con_DPrintf("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         if (passedict)
 201         {
 202                 int dphitcontentsmask = (int)PRVM_clientedictfloat(passedict, dphitcontentsmask);
 203                 if (dphitcontentsmask)
 204                         return dphitcontentsmask;
 205                 else if (passedict->fields.client->solid == SOLID_SLIDEBOX)
 206                 {
 207                         if ((int)passedict->fields.client->flags & FL_MONSTER)
 208                                 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_MONSTERCLIP;
 209                         else
 210                                 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_PLAYERCLIP;
 211                 }
 212                 else if (passedict->fields.client->solid == SOLID_CORPSE)
 213                         return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY;
 214                 else if (passedict->fields.client->solid == SOLID_TRIGGER)
 215                         return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY;
 216                 else
 217                         return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_CORPSE;
 218         }
 219         else
 220                 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_CORPSE;
 221 }
 222
 223 /*
 224 ==================
 225 CL_Move
 226 ==================
 227 */
 228 trace_t CL_TracePoint(const vec3_t start, int type, prvm_edict_t *passedict, int hitsupercontentsmask, qboolean hitnetworkbrushmodels, qboolean hitnetworkplayers, int *hitnetworkentity, qboolean hitcsqcentities)
 229 {
 230         int i, bodysupercontents;
 231         int passedictprog;
 232         prvm_edict_t *traceowner, *touch;
 233         trace_t trace;
 234         // bounding box of entire move area
 235         vec3_t clipboxmins, clipboxmaxs;
 236         // size when clipping against monsters
 237         vec3_t clipmins2, clipmaxs2;
 238         // start and end origin of move
 239         vec3_t clipstart;
 240         // trace results
 241         trace_t cliptrace;
 242         // matrices to transform into/out of other entity's space
 243         matrix4x4_t matrix, imatrix;
 244         // model of other entity
 245         dp_model_t *model;
 246         // list of entities to test for collisions
 247         int numtouchedicts;
 248         static prvm_edict_t *touchedicts[MAX_EDICTS];
 249
 250         if (hitnetworkentity)
 251                 *hitnetworkentity = 0;
 252
 253         VectorCopy(start, clipstart);
 254         VectorClear(clipmins2);
 255         VectorClear(clipmaxs2);
 256 #if COLLISIONPARANOID >= 3
 257         Con_Printf("move(%f %f %f)", clipstart[0], clipstart[1], clipstart[2]);
 258 #endif
 259
 260         // clip to world
 261         Collision_ClipPointToWorld(&cliptrace, cl.worldmodel, clipstart, hitsupercontentsmask);
 262         cliptrace.bmodelstartsolid = cliptrace.startsolid;
 263         if (cliptrace.startsolid || cliptrace.fraction < 1)
 264                 cliptrace.ent = prog ? prog->edicts : NULL;
 265         if (type == MOVE_WORLDONLY)
 266                 goto finished;
 267
 268         if (type == MOVE_MISSILE)
 269         {
 270                 // LordHavoc: modified this, was = -15, now -= 15
 271                 for (i = 0;i < 3;i++)
 272                 {
 273                         clipmins2[i] -= 15;
 274                         clipmaxs2[i] += 15;
 275                 }
 276         }
 277
 278         // create the bounding box of the entire move
 279         for (i = 0;i < 3;i++)
 280         {
 281                 clipboxmins[i] = clipstart[i] - 1;
 282                 clipboxmaxs[i] = clipstart[i] + 1;
 283         }
 284
 285         // debug override to test against everything
 286         if (sv_debugmove.integer)
 287         {
 288                 clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
 289                 clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  999999999;
 290         }
 291
 292         // if the passedict is world, make it NULL (to avoid two checks each time)
 293         // this checks prog because this function is often called without a CSQC
 294         // VM context
 295         if (prog == NULL || passedict == prog->edicts)
 296                 passedict = NULL;
 297         // precalculate prog value for passedict for comparisons
 298         passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
 299         // precalculate passedict's owner edict pointer for comparisons
 300         traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.client->owner) : NULL;
 301
 302         // collide against network entities
 303         if (hitnetworkbrushmodels)
 304         {
 305                 for (i = 0;i < cl.num_brushmodel_entities;i++)
 306                 {
 307                         entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
 308                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
 309                                 continue;
 310                         Collision_ClipPointToGenericEntity(&trace, ent->model, ent->frameblend, ent->skeleton, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, hitsupercontentsmask);
 311                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 312                                 *hitnetworkentity = cl.brushmodel_entities[i];
 313                         Collision_CombineTraces(&cliptrace, &trace, NULL, true);
 314                 }
 315         }
 316
 317         // collide against player entities
 318         if (hitnetworkplayers)
 319         {
 320                 vec3_t origin, entmins, entmaxs;
 321                 matrix4x4_t entmatrix, entinversematrix;
 322
 323                 if(gamemode == GAME_NEXUIZ || gamemode == GAME_XONOTIC)
 324                 {
 325                         // don't hit network players, if we are a nonsolid player
 326                         if(cl.scores[cl.playerentity-1].frags == -666 || cl.scores[cl.playerentity-1].frags == -616)
 327                                 goto skipnetworkplayers;
 328                 }
 329
 330                 for (i = 1;i <= cl.maxclients;i++)
 331                 {
 332                         entity_render_t *ent = &cl.entities[i].render;
 333
 334                         // don't hit ourselves
 335                         if (i == cl.playerentity)
 336                                 continue;
 337
 338                         // don't hit players that don't exist
 339                         if (!cl.scores[i-1].name[0])
 340                                 continue;
 341
 342                         if(gamemode == GAME_NEXUIZ || gamemode == GAME_XONOTIC)
 343                         {
 344                                 // don't hit spectators or nonsolid players
 345                                 if(cl.scores[i-1].frags == -666 || cl.scores[i-1].frags == -616)
 346                                         continue;
 347                         }
 348
 349                         Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
 350                         VectorAdd(origin, cl.playerstandmins, entmins);
 351                         VectorAdd(origin, cl.playerstandmaxs, entmaxs);
 352                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
 353                                 continue;
 354                         Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
 355                         Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
 356                         Collision_ClipPointToGenericEntity(&trace, NULL, NULL, NULL, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, hitsupercontentsmask);
 357                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 358                                 *hitnetworkentity = i;
 359                         Collision_CombineTraces(&cliptrace, &trace, NULL, false);
 360                 }
 361
 362 skipnetworkplayers:
 363                 ;
 364         }
 365
 366         // clip to entities
 367         // because this uses World_EntitiestoBox, we know all entity boxes overlap
 368         // the clip region, so we can skip culling checks in the loop below
 369         // note: if prog is NULL then there won't be any linked entities
 370         numtouchedicts = 0;
 371         if (hitcsqcentities && prog != NULL)
 372         {
 373                 numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
 374                 if (numtouchedicts > MAX_EDICTS)
 375                 {
 376                         // this never happens
 377                         Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
 378                         numtouchedicts = MAX_EDICTS;
 379                 }
 380         }
 381         for (i = 0;i < numtouchedicts;i++)
 382         {
 383                 touch = touchedicts[i];
 384
 385                 if (touch->fields.client->solid < SOLID_BBOX)
 386                         continue;
 387                 if (type == MOVE_NOMONSTERS && touch->fields.client->solid != SOLID_BSP)
 388                         continue;
 389
 390                 if (passedict)
 391                 {
 392                         // don't clip against self
 393                         if (passedict == touch)
 394                                 continue;
 395                         // don't clip owned entities against owner
 396                         if (traceowner == touch)
 397                                 continue;
 398                         // don't clip owner against owned entities
 399                         if (passedictprog == touch->fields.client->owner)
 400                                 continue;
 401                         // don't clip points against points (they can't collide)
 402                         if (VectorCompare(touch->fields.client->mins, touch->fields.client->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.client->flags & FL_MONSTER)))
 403                                 continue;
 404                 }
 405
 406                 bodysupercontents = touch->fields.client->solid == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
 407
 408                 // might interact, so do an exact clip
 409                 model = NULL;
 410                 if ((int) touch->fields.client->solid == SOLID_BSP || type == MOVE_HITMODEL)
 411                         model = CL_GetModelFromEdict(touch);
 412                 if (model)
 413                         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);
 414                 else
 415                         Matrix4x4_CreateTranslate(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2]);
 416                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
 417                 if ((int)touch->fields.client->flags & FL_MONSTER)
 418                         Collision_ClipToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipstart, hitsupercontentsmask);
 419                 else
 420                         Collision_ClipPointToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, hitsupercontentsmask);
 421
 422                 if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 423                         *hitnetworkentity = 0;
 424                 Collision_CombineTraces(&cliptrace, &trace, (void *)touch, touch->fields.client->solid == SOLID_BSP);
 425         }
 426
 427 finished:
 428         return cliptrace;
 429 }
 430
 431 /*
 432 ==================
 433 CL_TraceLine
 434 ==================
 435 */
 436 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 437 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, qboolean hitsurfaces)
 438 #else
 439 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, qboolean hitsurfaces)
 440 #endif
 441 {
 442         int i, bodysupercontents;
 443         int passedictprog;
 444         prvm_edict_t *traceowner, *touch;
 445         trace_t trace;
 446         // bounding box of entire move area
 447         vec3_t clipboxmins, clipboxmaxs;
 448         // size when clipping against monsters
 449         vec3_t clipmins2, clipmaxs2;
 450         // start and end origin of move
 451         vec3_t clipstart, clipend;
 452         // trace results
 453         trace_t cliptrace;
 454         // matrices to transform into/out of other entity's space
 455         matrix4x4_t matrix, imatrix;
 456         // model of other entity
 457         dp_model_t *model;
 458         // list of entities to test for collisions
 459         int numtouchedicts;
 460         static prvm_edict_t *touchedicts[MAX_EDICTS];
 461 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 462         vec3_t end;
 463         vec_t len = 0;
 464
 465         if (VectorCompare(start, pEnd))
 466                 return CL_TracePoint(start, type, passedict, hitsupercontentsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities);
 467
 468         if(collision_endposnudge.value > 0)
 469         {
 470                 // TRICK: make the trace 1 qu longer!
 471                 VectorSubtract(pEnd, start, end);
 472                 len = VectorNormalizeLength(end);
 473                 VectorMA(pEnd, collision_endposnudge.value, end, end);
 474         }
 475         else
 476                 VectorCopy(pEnd, end);
 477 #else
 478         if (VectorCompare(start, end))
 479                 return CL_TracePoint(start, type, passedict, hitsupercontentsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities);
 480 #endif
 481
 482         if (hitnetworkentity)
 483                 *hitnetworkentity = 0;
 484
 485         VectorCopy(start, clipstart);
 486         VectorCopy(end, clipend);
 487         VectorClear(clipmins2);
 488         VectorClear(clipmaxs2);
 489 #if COLLISIONPARANOID >= 3
 490         Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
 491 #endif
 492
 493         // clip to world
 494         Collision_ClipLineToWorld(&cliptrace, cl.worldmodel, clipstart, clipend, hitsupercontentsmask, hitsurfaces);
 495         cliptrace.bmodelstartsolid = cliptrace.startsolid;
 496         if (cliptrace.startsolid || cliptrace.fraction < 1)
 497                 cliptrace.ent = prog ? prog->edicts : NULL;
 498         if (type == MOVE_WORLDONLY)
 499                 goto finished;
 500
 501         if (type == MOVE_MISSILE)
 502         {
 503                 // LordHavoc: modified this, was = -15, now -= 15
 504                 for (i = 0;i < 3;i++)
 505                 {
 506                         clipmins2[i] -= 15;
 507                         clipmaxs2[i] += 15;
 508                 }
 509         }
 510
 511         // create the bounding box of the entire move
 512         for (i = 0;i < 3;i++)
 513         {
 514                 clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + clipmins2[i] - 1;
 515                 clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + clipmaxs2[i] + 1;
 516         }
 517
 518         // debug override to test against everything
 519         if (sv_debugmove.integer)
 520         {
 521                 clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
 522                 clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  999999999;
 523         }
 524
 525         // if the passedict is world, make it NULL (to avoid two checks each time)
 526         // this checks prog because this function is often called without a CSQC
 527         // VM context
 528         if (prog == NULL || passedict == prog->edicts)
 529                 passedict = NULL;
 530         // precalculate prog value for passedict for comparisons
 531         passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
 532         // precalculate passedict's owner edict pointer for comparisons
 533         traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.client->owner) : NULL;
 534
 535         // collide against network entities
 536         if (hitnetworkbrushmodels)
 537         {
 538                 for (i = 0;i < cl.num_brushmodel_entities;i++)
 539                 {
 540                         entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
 541                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
 542                                 continue;
 543                         Collision_ClipLineToGenericEntity(&trace, ent->model, ent->frameblend, ent->skeleton, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, end, hitsupercontentsmask, hitsurfaces);
 544                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 545                                 *hitnetworkentity = cl.brushmodel_entities[i];
 546                         Collision_CombineTraces(&cliptrace, &trace, NULL, true);
 547                 }
 548         }
 549
 550         // collide against player entities
 551         if (hitnetworkplayers)
 552         {
 553                 vec3_t origin, entmins, entmaxs;
 554                 matrix4x4_t entmatrix, entinversematrix;
 555
 556                 if(gamemode == GAME_NEXUIZ || gamemode == GAME_XONOTIC)
 557                 {
 558                         // don't hit network players, if we are a nonsolid player
 559                         if(cl.scores[cl.playerentity-1].frags == -666 || cl.scores[cl.playerentity-1].frags == -616)
 560                                 goto skipnetworkplayers;
 561                 }
 562
 563                 for (i = 1;i <= cl.maxclients;i++)
 564                 {
 565                         entity_render_t *ent = &cl.entities[i].render;
 566
 567                         // don't hit ourselves
 568                         if (i == cl.playerentity)
 569                                 continue;
 570
 571                         // don't hit players that don't exist
 572                         if (!cl.scores[i-1].name[0])
 573                                 continue;
 574
 575                         if(gamemode == GAME_NEXUIZ || gamemode == GAME_XONOTIC)
 576                         {
 577                                 // don't hit spectators or nonsolid players
 578                                 if(cl.scores[i-1].frags == -666 || cl.scores[i-1].frags == -616)
 579                                         continue;
 580                         }
 581
 582                         Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
 583                         VectorAdd(origin, cl.playerstandmins, entmins);
 584                         VectorAdd(origin, cl.playerstandmaxs, entmaxs);
 585                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
 586                                 continue;
 587                         Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
 588                         Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
 589                         Collision_ClipLineToGenericEntity(&trace, NULL, NULL, NULL, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, end, hitsupercontentsmask, hitsurfaces);
 590                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 591                                 *hitnetworkentity = i;
 592                         Collision_CombineTraces(&cliptrace, &trace, NULL, false);
 593                 }
 594
 595 skipnetworkplayers:
 596                 ;
 597         }
 598
 599         // clip to entities
 600         // because this uses World_EntitiestoBox, we know all entity boxes overlap
 601         // the clip region, so we can skip culling checks in the loop below
 602         // note: if prog is NULL then there won't be any linked entities
 603         numtouchedicts = 0;
 604         if (hitcsqcentities && prog != NULL)
 605         {
 606                 numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
 607                 if (numtouchedicts > MAX_EDICTS)
 608                 {
 609                         // this never happens
 610                         Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
 611                         numtouchedicts = MAX_EDICTS;
 612                 }
 613         }
 614         for (i = 0;i < numtouchedicts;i++)
 615         {
 616                 touch = touchedicts[i];
 617
 618                 if (touch->fields.client->solid < SOLID_BBOX)
 619                         continue;
 620                 if (type == MOVE_NOMONSTERS && touch->fields.client->solid != SOLID_BSP)
 621                         continue;
 622
 623                 if (passedict)
 624                 {
 625                         // don't clip against self
 626                         if (passedict == touch)
 627                                 continue;
 628                         // don't clip owned entities against owner
 629                         if (traceowner == touch)
 630                                 continue;
 631                         // don't clip owner against owned entities
 632                         if (passedictprog == touch->fields.client->owner)
 633                                 continue;
 634                         // don't clip points against points (they can't collide)
 635                         if (VectorCompare(touch->fields.client->mins, touch->fields.client->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.client->flags & FL_MONSTER)))
 636                                 continue;
 637                 }
 638
 639                 bodysupercontents = touch->fields.client->solid == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
 640
 641                 // might interact, so do an exact clip
 642                 model = NULL;
 643                 if ((int) touch->fields.client->solid == SOLID_BSP || type == MOVE_HITMODEL)
 644                         model = CL_GetModelFromEdict(touch);
 645                 if (model)
 646                         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);
 647                 else
 648                         Matrix4x4_CreateTranslate(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2]);
 649                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
 650                 if (type == MOVE_MISSILE && (int)touch->fields.client->flags & FL_MONSTER)
 651                         Collision_ClipToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipend, hitsupercontentsmask);
 652                 else
 653                         Collision_ClipLineToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipend, hitsupercontentsmask, hitsurfaces);
 654
 655                 if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 656                         *hitnetworkentity = 0;
 657                 Collision_CombineTraces(&cliptrace, &trace, (void *)touch, touch->fields.client->solid == SOLID_BSP);
 658         }
 659
 660 finished:
 661 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 662         if(!VectorCompare(start, pEnd) && collision_endposnudge.value > 0)
 663                 Collision_ShortenTrace(&cliptrace, len / (len + collision_endposnudge.value), pEnd);
 664 #endif
 665         return cliptrace;
 666 }
 667
 668 /*
 669 ==================
 670 CL_Move
 671 ==================
 672 */
 673 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 674 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)
 675 #else
 676 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)
 677 #endif
 678 {
 679         vec3_t hullmins, hullmaxs;
 680         int i, bodysupercontents;
 681         int passedictprog;
 682         qboolean pointtrace;
 683         prvm_edict_t *traceowner, *touch;
 684         trace_t trace;
 685         // bounding box of entire move area
 686         vec3_t clipboxmins, clipboxmaxs;
 687         // size of the moving object
 688         vec3_t clipmins, clipmaxs;
 689         // size when clipping against monsters
 690         vec3_t clipmins2, clipmaxs2;
 691         // start and end origin of move
 692         vec3_t clipstart, clipend;
 693         // trace results
 694         trace_t cliptrace;
 695         // matrices to transform into/out of other entity's space
 696         matrix4x4_t matrix, imatrix;
 697         // model of other entity
 698         dp_model_t *model;
 699         // list of entities to test for collisions
 700         int numtouchedicts;
 701         static prvm_edict_t *touchedicts[MAX_EDICTS];
 702 #ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
 703         vec3_t end;
 704         vec_t len = 0;
 705
 706         if (VectorCompare(mins, maxs))
 707         {
 708                 vec3_t shiftstart, shiftend;
 709                 VectorAdd(start, mins, shiftstart);
 710                 VectorAdd(pEnd, mins, shiftend);
 711                 if (VectorCompare(start, pEnd))
 712                         trace = CL_TracePoint(shiftstart, type, passedict, hitsupercontentsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities);
 713                 else
 714                         trace = CL_TraceLine(shiftstart, shiftend, type, passedict, hitsupercontentsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities, false);
 715                 VectorSubtract(trace.endpos, mins, trace.endpos);
 716                 return trace;
 717         }
 718
 719         if(!VectorCompare(start, pEnd) && collision_endposnudge.value > 0)
 720         {
 721                 // TRICK: make the trace 1 qu longer!
 722                 VectorSubtract(pEnd, start, end);
 723                 len = VectorNormalizeLength(end);
 724                 VectorMA(pEnd, collision_endposnudge.value, end, end);
 725         }
 726         else
 727                 VectorCopy(pEnd, end);
 728 #else
 729         if (VectorCompare(mins, maxs))
 730         {
 731                 vec3_t shiftstart, shiftend;
 732                 VectorAdd(start, mins, shiftstart);
 733                 VectorAdd(end, mins, shiftend);
 734                 if (VectorCompare(start, end))
 735                         trace = CL_TracePoint(shiftstart, type, passedict, hitsupercontentsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities);
 736                 else
 737                         trace = CL_TraceLine(shiftstart, shiftend, type, passedict, hitsupercontentsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities, false);
 738                 VectorSubtract(trace.endpos, mins, trace.endpos);
 739                 return trace;
 740         }
 741 #endif
 742
 743         if (hitnetworkentity)
 744                 *hitnetworkentity = 0;
 745
 746         VectorCopy(start, clipstart);
 747         VectorCopy(end, clipend);
 748         VectorCopy(mins, clipmins);
 749         VectorCopy(maxs, clipmaxs);
 750         VectorCopy(mins, clipmins2);
 751         VectorCopy(maxs, clipmaxs2);
 752 #if COLLISIONPARANOID >= 3
 753         Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
 754 #endif
 755
 756         // clip to world
 757         Collision_ClipToWorld(&cliptrace, cl.worldmodel, clipstart, clipmins, clipmaxs, clipend, hitsupercontentsmask);
 758         cliptrace.bmodelstartsolid = cliptrace.startsolid;
 759         if (cliptrace.startsolid || cliptrace.fraction < 1)
 760                 cliptrace.ent = prog ? prog->edicts : NULL;
 761         if (type == MOVE_WORLDONLY)
 762                 goto finished;
 763
 764         if (type == MOVE_MISSILE)
 765         {
 766                 // LordHavoc: modified this, was = -15, now -= 15
 767                 for (i = 0;i < 3;i++)
 768                 {
 769                         clipmins2[i] -= 15;
 770                         clipmaxs2[i] += 15;
 771                 }
 772         }
 773
 774         // get adjusted box for bmodel collisions if the world is q1bsp or hlbsp
 775         if (cl.worldmodel && cl.worldmodel->brush.RoundUpToHullSize)
 776                 cl.worldmodel->brush.RoundUpToHullSize(cl.worldmodel, clipmins, clipmaxs, hullmins, hullmaxs);
 777         else
 778         {
 779                 VectorCopy(clipmins, hullmins);
 780                 VectorCopy(clipmaxs, hullmaxs);
 781         }
 782
 783         // create the bounding box of the entire move
 784         for (i = 0;i < 3;i++)
 785         {
 786                 clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + min(hullmins[i], clipmins2[i]) - 1;
 787                 clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + max(hullmaxs[i], clipmaxs2[i]) + 1;
 788         }
 789
 790         // debug override to test against everything
 791         if (sv_debugmove.integer)
 792         {
 793                 clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
 794                 clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  999999999;
 795         }
 796
 797         // if the passedict is world, make it NULL (to avoid two checks each time)
 798         // this checks prog because this function is often called without a CSQC
 799         // VM context
 800         if (prog == NULL || passedict == prog->edicts)
 801                 passedict = NULL;
 802         // precalculate prog value for passedict for comparisons
 803         passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
 804         // figure out whether this is a point trace for comparisons
 805         pointtrace = VectorCompare(clipmins, clipmaxs);
 806         // precalculate passedict's owner edict pointer for comparisons
 807         traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.client->owner) : NULL;
 808
 809         // collide against network entities
 810         if (hitnetworkbrushmodels)
 811         {
 812                 for (i = 0;i < cl.num_brushmodel_entities;i++)
 813                 {
 814                         entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
 815                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
 816                                 continue;
 817                         Collision_ClipToGenericEntity(&trace, ent->model, ent->frameblend, ent->skeleton, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, mins, maxs, end, hitsupercontentsmask);
 818                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 819                                 *hitnetworkentity = cl.brushmodel_entities[i];
 820                         Collision_CombineTraces(&cliptrace, &trace, NULL, true);
 821                 }
 822         }
 823
 824         // collide against player entities
 825         if (hitnetworkplayers)
 826         {
 827                 vec3_t origin, entmins, entmaxs;
 828                 matrix4x4_t entmatrix, entinversematrix;
 829
 830                 if(gamemode == GAME_NEXUIZ || gamemode == GAME_XONOTIC)
 831                 {
 832                         // don't hit network players, if we are a nonsolid player
 833                         if(cl.scores[cl.playerentity-1].frags == -666 || cl.scores[cl.playerentity-1].frags == -616)
 834                                 goto skipnetworkplayers;
 835                 }
 836
 837                 for (i = 1;i <= cl.maxclients;i++)
 838                 {
 839                         entity_render_t *ent = &cl.entities[i].render;
 840
 841                         // don't hit ourselves
 842                         if (i == cl.playerentity)
 843                                 continue;
 844
 845                         // don't hit players that don't exist
 846                         if (!cl.scores[i-1].name[0])
 847                                 continue;
 848
 849                         if(gamemode == GAME_NEXUIZ || gamemode == GAME_XONOTIC)
 850                         {
 851                                 // don't hit spectators or nonsolid players
 852                                 if(cl.scores[i-1].frags == -666 || cl.scores[i-1].frags == -616)
 853                                         continue;
 854                         }
 855
 856                         Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
 857                         VectorAdd(origin, cl.playerstandmins, entmins);
 858                         VectorAdd(origin, cl.playerstandmaxs, entmaxs);
 859                         if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
 860                                 continue;
 861                         Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
 862                         Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
 863                         Collision_ClipToGenericEntity(&trace, NULL, NULL, NULL, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, mins, maxs, end, hitsupercontentsmask);
 864                         if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
 865                                 *hitnetworkentity = i;
 866                         Collision_CombineTraces(&cliptrace, &trace, NULL, false);
 867                 }
 868
 869 skipnetworkplayers:
 870                 ;
 871         }
 872
 873         // clip to entities
 874         // because this uses World_EntitiestoBox, we know all entity boxes overlap
 875         // the clip region, so we can skip culling checks in the loop below
 876         // note: if prog is NULL then there won't be any linked entities
 877         numtouchedicts = 0;
 878         if (hitcsqcentities && prog != NULL)
 879         {
 880                 numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
 881                 if (numtouchedicts > MAX_EDICTS)
 882                 {
 883                         // this never happens
 884                         Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
 885                         numtouchedicts = MAX_EDICTS;
 886                 }
 887         }
 888         for (i = 0;i < numtouchedicts;i++)
 889         {
 890                 touch = touchedicts[i];
 891
 892                 if (touch->fields.client->solid < SOLID_BBOX)
 893                         continue;
 894                 if (type == MOVE_NOMONSTERS && touch->fields.client->solid != SOLID_BSP)
 895                         continue;
 896
 897                 if (passedict)
 898                 {
 899                         // don't clip against self
 900                         if (passedict == touch)
 901                                 continue;
 902                         // don't clip owned entities against owner
 903                         if (traceowner == touch)
 904                                 continue;
 905                         // don't clip owner against owned entities
 906                         if (passedictprog == touch->fields.client->owner)
 907                                 continue;
 908                         // don't clip points against points (they can't collide)
 909                         if (pointtrace && VectorCompare(touch->fields.client->mins, touch->fields.client->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.client->flags & FL_MONSTER)))
 910                                 continue;
 911                 }
 912
 913                 bodysupercontents = touch->fields.client->solid == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
 914
 915                 // might interact, so do an exact clip
 916                 model = NULL;
 917                 if ((int) touch->fields.client->solid == SOLID_BSP || type == MOVE_HITMODEL)
 918                         model = CL_GetModelFromEdict(touch);
 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, touch->priv.server->frameblend, &touch->priv.server->skeleton, touch->fields.client->mins, touch->fields.client->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipend, hitsupercontentsmask);
 926                 else
 927                         Collision_ClipToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, 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) && collision_endposnudge.value > 0)
 937                 Collision_ShortenTrace(&cliptrace, len / (len + collision_endposnudge.value), pEnd);
 938 #endif
 939         return cliptrace;
 940 }