world_cs.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // world.c -- world query functions
  21
  22 #include "quakedef.h"
  23
  24 /*
  25
  26 entities never clip against themselves, or their owner
  27
  28 line of sight checks trace->inopen and trace->inwater, but bullets don't
  29
  30 */
  31
  32 extern cvar_t sv_debugmove;
  33 extern cvar_t sv_areagrid_mingridsize;
  34
  35 trace_t CSSV_Move(const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int type, prvm_edict_t *passedict);
  36
  37 void CSSV_AreaStats_f(void);
  38
  39 void CSSV_World_Init(void)
  40 {
  41         Cvar_RegisterVariable(&sv_debugmove);
  42         Cvar_RegisterVariable(&sv_areagrid_mingridsize);
  43         Cmd_AddCommand("cssv_areastats", CSSV_AreaStats_f, "prints information on culling grid system");
  44         Collision_Init();
  45 }
  46
  47 //============================================================================
  48
  49 // CSClearLink is used for new headnodes
  50 static void CSClearLink (link_t *l)
  51 {
  52         l->entitynumber = 0;
  53         l->prev = l->next = l;
  54 }
  55
  56 static void CSRemoveLink (link_t *l)
  57 {
  58         l->next->prev = l->prev;
  59         l->prev->next = l->next;
  60 }
  61
  62 static void CSInsertLinkBefore (link_t *l, link_t *before, int entitynumber)
  63 {
  64         l->entitynumber = entitynumber;
  65         l->next = before;
  66         l->prev = before->prev;
  67         l->prev->next = l;
  68         l->next->prev = l;
  69 }
  70
  71
  72 /*
  73 ===============================================================================
  74
  75 ENTITY AREA CHECKING
  76
  77 ===============================================================================
  78 */
  79
  80 int cssv_areagrid_stats_calls = 0;
  81 int cssv_areagrid_stats_nodechecks = 0;
  82 int cssv_areagrid_stats_entitychecks = 0;
  83
  84 void CSSV_AreaStats_f(void)
  85 {
  86         Con_Printf("csareagrid check stats: %d calls %d nodes (%f per call) %d entities (%f per call)\n", cssv_areagrid_stats_calls, cssv_areagrid_stats_nodechecks, (double) cssv_areagrid_stats_nodechecks / (double) cssv_areagrid_stats_calls, cssv_areagrid_stats_entitychecks, (double) cssv_areagrid_stats_entitychecks / (double) cssv_areagrid_stats_calls);
  87         cssv_areagrid_stats_calls = 0;
  88         cssv_areagrid_stats_nodechecks = 0;
  89         cssv_areagrid_stats_entitychecks = 0;
  90 }
  91
  92 typedef struct areagrid_s
  93 {
  94         link_t edicts;
  95 }
  96 csareagrid_t;
  97
  98 #define CSAREA_GRID 512
  99 #define CSAREA_GRIDNODES (CSAREA_GRID * CSAREA_GRID)
 100
 101 static csareagrid_t cssv_areagrid[CSAREA_GRIDNODES], cssv_areagrid_outside;
 102 static vec3_t cssv_areagrid_bias, cssv_areagrid_scale, cssv_areagrid_mins, cssv_areagrid_maxs, cssv_areagrid_size;
 103 static int cssv_areagrid_marknumber = 1;
 104
 105 void CSSV_CreateAreaGrid (vec3_t mins, vec3_t maxs)
 106 {
 107         int i;
 108         CSClearLink (&cssv_areagrid_outside.edicts);
 109         // choose either the world box size, or a larger box to ensure the grid isn't too fine
 110         cssv_areagrid_size[0] = max(maxs[0] - mins[0], CSAREA_GRID * sv_areagrid_mingridsize.value);
 111         cssv_areagrid_size[1] = max(maxs[1] - mins[1], CSAREA_GRID * sv_areagrid_mingridsize.value);
 112         cssv_areagrid_size[2] = max(maxs[2] - mins[2], CSAREA_GRID * sv_areagrid_mingridsize.value);
 113         // figure out the corners of such a box, centered at the center of the world box
 114         cssv_areagrid_mins[0] = (mins[0] + maxs[0] - cssv_areagrid_size[0]) * 0.5f;
 115         cssv_areagrid_mins[1] = (mins[1] + maxs[1] - cssv_areagrid_size[1]) * 0.5f;
 116         cssv_areagrid_mins[2] = (mins[2] + maxs[2] - cssv_areagrid_size[2]) * 0.5f;
 117         cssv_areagrid_maxs[0] = (mins[0] + maxs[0] + cssv_areagrid_size[0]) * 0.5f;
 118         cssv_areagrid_maxs[1] = (mins[1] + maxs[1] + cssv_areagrid_size[1]) * 0.5f;
 119         cssv_areagrid_maxs[2] = (mins[2] + maxs[2] + cssv_areagrid_size[2]) * 0.5f;
 120         // now calculate the actual useful info from that
 121         VectorNegate(cssv_areagrid_mins, cssv_areagrid_bias);
 122         cssv_areagrid_scale[0] = CSAREA_GRID / cssv_areagrid_size[0];
 123         cssv_areagrid_scale[1] = CSAREA_GRID / cssv_areagrid_size[1];
 124         cssv_areagrid_scale[2] = CSAREA_GRID / cssv_areagrid_size[2];
 125         for (i = 0;i < CSAREA_GRIDNODES;i++)
 126         {
 127                 CSClearLink (&cssv_areagrid[i].edicts);
 128         }
 129         Con_DPrintf("cssv_areagrid settings: divisions %ix%ix1 : box %f %f %f : %f %f %f size %f %f %f grid %f %f %f (mingrid %f)\n", CSAREA_GRID, CSAREA_GRID, cssv_areagrid_mins[0], cssv_areagrid_mins[1], cssv_areagrid_mins[2], cssv_areagrid_maxs[0], cssv_areagrid_maxs[1], cssv_areagrid_maxs[2], cssv_areagrid_size[0], cssv_areagrid_size[1], cssv_areagrid_size[2], 1.0f / cssv_areagrid_scale[0], 1.0f / cssv_areagrid_scale[1], 1.0f / cssv_areagrid_scale[2], sv_areagrid_mingridsize.value);
 130 }
 131
 132 /*
 133 ===============
 134 CSSV_ClearWorld
 135
 136 ===============
 137 */
 138 void CSSV_ClearWorld (void)
 139 {
 140         CSSV_CreateAreaGrid(cl.worldmodel->normalmins, cl.worldmodel->normalmaxs);
 141 }
 142
 143
 144 /*
 145 ===============
 146 CSSV_UnlinkEdict
 147
 148 ===============
 149 */
 150 void CSSV_UnlinkEdict (prvm_edict_t *ent)
 151 {
 152         int i;
 153         for (i = 0;i < ENTITYGRIDAREAS;i++)
 154         {
 155                 if (ent->priv.server->areagrid[i].prev)
 156                 {
 157                         CSRemoveLink (&ent->priv.server->areagrid[i]);
 158                         ent->priv.server->areagrid[i].prev = ent->priv.server->areagrid[i].next = NULL;
 159                 }
 160         }
 161 }
 162
 163 int CSSV_EntitiesInBox(vec3_t mins, vec3_t maxs, int maxlist, prvm_edict_t **list)
 164 {
 165         int numlist;
 166         csareagrid_t *grid;
 167         link_t *l;
 168         prvm_edict_t *ent;
 169         int igrid[3], igridmins[3], igridmaxs[3];
 170
 171         cssv_areagrid_stats_calls++;
 172         cssv_areagrid_marknumber++;
 173         igridmins[0] = (int) ((mins[0] + cssv_areagrid_bias[0]) * cssv_areagrid_scale[0]);
 174         igridmins[1] = (int) ((mins[1] + cssv_areagrid_bias[1]) * cssv_areagrid_scale[1]);
 175         //igridmins[2] = (int) ((mins[2] + cssv_areagrid_bias[2]) * cssv_areagrid_scale[2]);
 176         igridmaxs[0] = (int) ((maxs[0] + cssv_areagrid_bias[0]) * cssv_areagrid_scale[0]) + 1;
 177         igridmaxs[1] = (int) ((maxs[1] + cssv_areagrid_bias[1]) * cssv_areagrid_scale[1]) + 1;
 178         //igridmaxs[2] = (int) ((maxs[2] + cssv_areagrid_bias[2]) * cssv_areagrid_scale[2]) + 1;
 179         igridmins[0] = max(0, igridmins[0]);
 180         igridmins[1] = max(0, igridmins[1]);
 181         //igridmins[2] = max(0, igridmins[2]);
 182         igridmaxs[0] = min(CSAREA_GRID, igridmaxs[0]);
 183         igridmaxs[1] = min(CSAREA_GRID, igridmaxs[1]);
 184         //igridmaxs[2] = min(CSAREA_GRID, igridmaxs[2]);
 185
 186         numlist = 0;
 187         // add entities not linked into areagrid because they are too big or
 188         // outside the grid bounds
 189         if (cssv_areagrid_outside.edicts.next != &cssv_areagrid_outside.edicts)
 190         {
 191                 for (l = cssv_areagrid_outside.edicts.next;l != &cssv_areagrid_outside.edicts;l = l->next)
 192                 {
 193                         ent = PRVM_EDICT_NUM_UNSIGNED(l->entitynumber);
 194                         if (ent->priv.server->areagridmarknumber != cssv_areagrid_marknumber)
 195                         {
 196                                 ent->priv.server->areagridmarknumber = cssv_areagrid_marknumber;
 197                                 if (!ent->priv.server->free && BoxesOverlap(mins, maxs, ent->fields.client->absmin, ent->fields.client->absmax))
 198                                 {
 199                                         if (numlist < maxlist)
 200                                                 list[numlist] = ent;
 201                                         numlist++;
 202                                 }
 203                                 cssv_areagrid_stats_entitychecks++;
 204                         }
 205                 }
 206         }
 207         // add grid linked entities
 208         for (igrid[1] = igridmins[1];igrid[1] < igridmaxs[1];igrid[1]++)
 209         {
 210                 grid = cssv_areagrid + igrid[1] * CSAREA_GRID + igridmins[0];
 211                 for (igrid[0] = igridmins[0];igrid[0] < igridmaxs[0];igrid[0]++, grid++)
 212                 {
 213                         if (grid->edicts.next != &grid->edicts)
 214                         {
 215                                 for (l = grid->edicts.next;l != &grid->edicts;l = l->next)
 216                                 {
 217                                         ent = PRVM_EDICT_NUM_UNSIGNED(l->entitynumber);
 218                                         if (ent->priv.server->areagridmarknumber != cssv_areagrid_marknumber)
 219                                         {
 220                                                 ent->priv.server->areagridmarknumber = cssv_areagrid_marknumber;
 221                                                 if (!ent->priv.server->free && BoxesOverlap(mins, maxs, ent->fields.client->absmin, ent->fields.client->absmax))
 222                                                 {
 223                                                         if (numlist < maxlist)
 224                                                                 list[numlist] = ent;
 225                                                         numlist++;
 226                                                 }
 227                                         }
 228                                         cssv_areagrid_stats_entitychecks++;
 229                                 }
 230                         }
 231                 }
 232         }
 233         return numlist;
 234 }
 235
 236 void CSSV_TouchAreaGrid(prvm_edict_t *ent)
 237 {
 238         int i, numtouchedicts, old_self, old_other;
 239         prvm_edict_t *touch, *touchedicts[MAX_EDICTS];
 240
 241         // build a list of edicts to touch, because the link loop can be corrupted
 242         // by CSSV_IncreaseEdicts called during touch functions
 243         numtouchedicts = CSSV_EntitiesInBox(ent->fields.client->absmin, ent->fields.client->absmax, MAX_EDICTS, touchedicts);
 244         if (numtouchedicts > MAX_EDICTS)
 245         {
 246                 // this never happens
 247                 Con_Printf("CSSV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
 248                 numtouchedicts = MAX_EDICTS;
 249         }
 250
 251         old_self = prog->globals.client->self;
 252         old_other = prog->globals.client->other;
 253         for (i = 0;i < numtouchedicts;i++)
 254         {
 255                 touch = touchedicts[i];
 256                 if (touch != ent && (int)touch->fields.client->solid == SOLID_TRIGGER && touch->fields.client->touch)
 257                 {
 258                         prog->globals.client->self = PRVM_EDICT_TO_PROG(touch);
 259                         prog->globals.client->other = PRVM_EDICT_TO_PROG(ent);
 260                         prog->globals.client->time = cl.time;
 261                         PRVM_ExecuteProgram (touch->fields.client->touch, "QC function self.touch is missing");
 262                 }
 263         }
 264         prog->globals.client->self = old_self;
 265         prog->globals.client->other = old_other;
 266 }
 267
 268 void CSSV_LinkEdict_AreaGrid(prvm_edict_t *ent)
 269 {
 270         csareagrid_t *grid;
 271         int igrid[3], igridmins[3], igridmaxs[3], gridnum, entitynumber = PRVM_NUM_FOR_EDICT(ent);
 272
 273         if (entitynumber <= 0 || entitynumber >= prog->max_edicts || PRVM_EDICT_NUM(entitynumber) != ent)
 274         {
 275                 Con_Printf ("CSSV_LinkEdict_AreaGrid: invalid edict %p (edicts is %p, edict compared to prog->edicts is %i)\n", ent, prog->edicts, entitynumber);
 276                 return;
 277         }
 278
 279         igridmins[0] = (int) ((ent->fields.client->absmin[0] + cssv_areagrid_bias[0]) * cssv_areagrid_scale[0]);
 280         igridmins[1] = (int) ((ent->fields.client->absmin[1] + cssv_areagrid_bias[1]) * cssv_areagrid_scale[1]);
 281         //igridmins[2] = (int) ((ent->fields.client->absmin[2] + cssv_areagrid_bias[2]) * cssv_areagrid_scale[2]);
 282         igridmaxs[0] = (int) ((ent->fields.client->absmax[0] + cssv_areagrid_bias[0]) * cssv_areagrid_scale[0]) + 1;
 283         igridmaxs[1] = (int) ((ent->fields.client->absmax[1] + cssv_areagrid_bias[1]) * cssv_areagrid_scale[1]) + 1;
 284         //igridmaxs[2] = (int) ((ent->fields.client->absmax[2] + cssv_areagrid_bias[2]) * cssv_areagrid_scale[2]) + 1;
 285         if (igridmins[0] < 0 || igridmaxs[0] > CSAREA_GRID || igridmins[1] < 0 || igridmaxs[1] > CSAREA_GRID || ((igridmaxs[0] - igridmins[0]) * (igridmaxs[1] - igridmins[1])) > ENTITYGRIDAREAS)
 286         {
 287                 // wow, something outside the grid, store it as such
 288                 CSInsertLinkBefore (&ent->priv.server->areagrid[0], &cssv_areagrid_outside.edicts, entitynumber);
 289                 return;
 290         }
 291
 292         gridnum = 0;
 293         for (igrid[1] = igridmins[1];igrid[1] < igridmaxs[1];igrid[1]++)
 294         {
 295                 grid = cssv_areagrid + igrid[1] * CSAREA_GRID + igridmins[0];
 296                 for (igrid[0] = igridmins[0];igrid[0] < igridmaxs[0];igrid[0]++, grid++, gridnum++)
 297                         CSInsertLinkBefore (&ent->priv.server->areagrid[gridnum], &grid->edicts, entitynumber);
 298         }
 299 }
 300
 301 /*
 302 ===============
 303 SV_LinkEdict
 304
 305 ===============
 306 */
 307 void CSSV_LinkEdict (prvm_edict_t *ent, qboolean touch_triggers)
 308 {
 309         model_t *model;
 310
 311         if (ent->priv.server->areagrid[0].prev)
 312                 CSSV_UnlinkEdict (ent); // unlink from old position
 313
 314         if (ent == prog->edicts)
 315                 return;         // don't add the world
 316
 317         if (ent->priv.server->free)
 318                 return;
 319
 320 // set the abs box
 321
 322         if (ent->fields.client->solid == SOLID_BSP)
 323         {
 324                 int modelindex = ent->fields.client->modelindex;
 325                 if (modelindex < 0 || modelindex > MAX_MODELS)
 326                 {
 327                         Con_Printf("edict %i: SOLID_BSP with invalid modelindex!\n", PRVM_NUM_FOR_EDICT(ent));
 328                         modelindex = 0;
 329                 }
 330                 model = cl.model_precache[modelindex];
 331                 if (model != NULL)
 332                 {
 333                         if (!model->TraceBox)
 334                                 Con_Printf("edict %i: SOLID_BSP with non-collidable model\n", PRVM_NUM_FOR_EDICT(ent));
 335
 336                         if (ent->fields.client->angles[0] || ent->fields.client->angles[2] || ent->fields.client->avelocity[0] || ent->fields.client->avelocity[2])
 337                         {
 338                                 VectorAdd(ent->fields.client->origin, model->rotatedmins, ent->fields.client->absmin);
 339                                 VectorAdd(ent->fields.client->origin, model->rotatedmaxs, ent->fields.client->absmax);
 340                         }
 341                         else if (ent->fields.client->angles[1] || ent->fields.client->avelocity[1])
 342                         {
 343                                 VectorAdd(ent->fields.client->origin, model->yawmins, ent->fields.client->absmin);
 344                                 VectorAdd(ent->fields.client->origin, model->yawmaxs, ent->fields.client->absmax);
 345                         }
 346                         else
 347                         {
 348                                 VectorAdd(ent->fields.client->origin, model->normalmins, ent->fields.client->absmin);
 349                                 VectorAdd(ent->fields.client->origin, model->normalmaxs, ent->fields.client->absmax);
 350                         }
 351                 }
 352                 else
 353                 {
 354                         // SOLID_BSP with no model is valid, mainly because some QC setup code does so temporarily
 355                         VectorAdd(ent->fields.client->origin, ent->fields.client->mins, ent->fields.client->absmin);
 356                         VectorAdd(ent->fields.client->origin, ent->fields.client->maxs, ent->fields.client->absmax);
 357                 }
 358         }
 359         else
 360         {
 361                 VectorAdd(ent->fields.client->origin, ent->fields.client->mins, ent->fields.client->absmin);
 362                 VectorAdd(ent->fields.client->origin, ent->fields.client->maxs, ent->fields.client->absmax);
 363         }
 364
 365 //
 366 // to make items easier to pick up and allow them to be grabbed off
 367 // of shelves, the abs sizes are expanded
 368 //
 369         if ((int)ent->fields.client->flags & FL_ITEM)
 370         {
 371                 ent->fields.client->absmin[0] -= 15;
 372                 ent->fields.client->absmin[1] -= 15;
 373                 ent->fields.client->absmin[2] -= 1;
 374                 ent->fields.client->absmax[0] += 15;
 375                 ent->fields.client->absmax[1] += 15;
 376                 ent->fields.client->absmax[2] += 1;
 377         }
 378         else
 379         {
 380                 // because movement is clipped an epsilon away from an actual edge,
 381                 // we must fully check even when bounding boxes don't quite touch
 382                 ent->fields.client->absmin[0] -= 1;
 383                 ent->fields.client->absmin[1] -= 1;
 384                 ent->fields.client->absmin[2] -= 1;
 385                 ent->fields.client->absmax[0] += 1;
 386                 ent->fields.client->absmax[1] += 1;
 387                 ent->fields.client->absmax[2] += 1;
 388         }
 389
 390         if (ent->fields.client->solid == SOLID_NOT)
 391                 return;
 392
 393         CSSV_LinkEdict_AreaGrid(ent);
 394
 395 // if touch_triggers, touch all entities at this node and descend for more
 396         if (touch_triggers)
 397                 CSSV_TouchAreaGrid(ent);
 398 }
 399
 400
 401
 402 /*
 403 ===============================================================================
 404
 405 POINT TESTING IN HULLS
 406
 407 ===============================================================================
 408 */
 409
 410 /*
 411 ============
 412 SV_TestEntityPosition
 413
 414 This could be a lot more efficient...
 415 ============
 416 */
 417 int CSSV_TestEntityPosition (prvm_edict_t *ent)
 418 {
 419         return CSSV_Move (ent->fields.client->origin, ent->fields.client->mins, ent->fields.client->maxs, ent->fields.client->origin, MOVE_NORMAL, ent).startsolid;
 420 }
 421
 422
 423 /*
 424 ===============================================================================
 425
 426 LINE TESTING IN HULLS
 427
 428 ===============================================================================
 429 */
 430
 431 /*
 432 ==================
 433 SV_ClipMoveToEntity
 434
 435 Handles selection or creation of a clipping hull, and offseting (and
 436 eventually rotation) of the end points
 437 ==================
 438 */
 439 trace_t CSSV_ClipMoveToEntity(prvm_edict_t *ent, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int movetype, int hitsupercontents)
 440 {
 441         trace_t trace;
 442         model_t *model = NULL;
 443         matrix4x4_t matrix, imatrix;
 444         float tempnormal[3], starttransformed[3], endtransformed[3];
 445
 446         memset(&trace, 0, sizeof(trace));
 447         trace.fraction = trace.realfraction = 1;
 448         VectorCopy(end, trace.endpos);
 449
 450         if ((int) ent->fields.client->solid == SOLID_BSP || movetype == MOVE_HITMODEL)
 451         {
 452                 unsigned int modelindex = ent->fields.client->modelindex;
 453                 // if the modelindex is 0, it shouldn't be SOLID_BSP!
 454                 if (modelindex == 0)
 455                 {
 456                         Con_Printf("SV_ClipMoveToEntity: edict %i: SOLID_BSP with no model\n", PRVM_NUM_FOR_EDICT(ent));
 457                         return trace;
 458                 }
 459                 if (modelindex >= MAX_MODELS)
 460                 {
 461                         Con_Printf("SV_ClipMoveToEntity: edict %i: SOLID_BSP with invalid modelindex\n", PRVM_NUM_FOR_EDICT(ent));
 462                         return trace;
 463                 }
 464                 model = cl.model_precache[modelindex];
 465                 if (modelindex != 0 && model == NULL)
 466                 {
 467                         Con_Printf("SV_ClipMoveToEntity: edict %i: SOLID_BSP with invalid modelindex\n", PRVM_NUM_FOR_EDICT(ent));
 468                         return trace;
 469                 }
 470
 471                 if ((int) ent->fields.client->solid == SOLID_BSP)
 472                 {
 473                         if (!model->TraceBox)
 474                         {
 475                                 Con_Printf("SV_ClipMoveToEntity: edict %i: SOLID_BSP with a non-collidable model\n", PRVM_NUM_FOR_EDICT(ent));
 476                                 return trace;
 477                         }
 478                         //if (ent->fields.client->movetype != MOVETYPE_PUSH)
 479                         //{
 480                         //      Con_Printf("SV_ClipMoveToEntity: edict %i: SOLID_BSP without MOVETYPE_PUSH\n", PRVM_NUM_FOR_EDICT(ent));
 481                         //      return trace;
 482                         //}
 483                 }
 484                 Matrix4x4_CreateFromQuakeEntity(&matrix, ent->fields.client->origin[0], ent->fields.client->origin[1], ent->fields.client->origin[2], ent->fields.client->angles[0], ent->fields.client->angles[1], ent->fields.client->angles[2], 1);
 485         }
 486         else
 487                 Matrix4x4_CreateTranslate(&matrix, ent->fields.client->origin[0], ent->fields.client->origin[1], ent->fields.client->origin[2]);
 488
 489         Matrix4x4_Invert_Simple(&imatrix, &matrix);
 490         Matrix4x4_Transform(&imatrix, start, starttransformed);
 491         Matrix4x4_Transform(&imatrix, end, endtransformed);
 492 #if COLLISIONPARANOID >= 3
 493         Con_Printf("trans(%f %f %f -> %f %f %f, %f %f %f -> %f %f %f)", start[0], start[1], start[2], starttransformed[0], starttransformed[1], starttransformed[2], end[0], end[1], end[2], endtransformed[0], endtransformed[1], endtransformed[2]);
 494 #endif
 495
 496         if (model && model->TraceBox)
 497         {
 498                 int frame;
 499                 frame = (int)ent->fields.client->frame;
 500                 frame = bound(0, frame, (model->numframes - 1));
 501                 model->TraceBox(model, frame, &trace, starttransformed, mins, maxs, endtransformed, hitsupercontents);
 502         }
 503         else
 504                 Collision_ClipTrace_Box(&trace, ent->fields.client->mins, ent->fields.client->maxs, starttransformed, mins, maxs, endtransformed, hitsupercontents, SUPERCONTENTS_SOLID);
 505         trace.fraction = bound(0, trace.fraction, 1);
 506         trace.realfraction = bound(0, trace.realfraction, 1);
 507
 508         if (trace.fraction < 1)
 509         {
 510                 VectorLerp(start, trace.fraction, end, trace.endpos);
 511                 VectorCopy(trace.plane.normal, tempnormal);
 512                 Matrix4x4_Transform3x3(&matrix, tempnormal, trace.plane.normal);
 513                 // FIXME: should recalc trace.plane.dist
 514         }
 515         else
 516                 VectorCopy(end, trace.endpos);
 517
 518         return trace;
 519 }
 520
 521 //===========================================================================
 522
 523 /*
 524 ==================
 525 SV_Move
 526 ==================
 527 */
 528 #if COLLISIONPARANOID >= 1
 529 trace_t CSSV_Move_(const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int type, prvm_edict_t *passedict)
 530 #else
 531 trace_t CSSV_Move(const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int type, prvm_edict_t *passedict)
 532 #endif
 533 {
 534         vec3_t hullmins, hullmaxs;
 535         int i;
 536         int hitsupercontentsmask;
 537         int passedictprog;
 538         qboolean pointtrace;
 539         prvm_edict_t *traceowner, *touch;
 540         trace_t trace;
 541         // bounding box of entire move area
 542         vec3_t clipboxmins, clipboxmaxs;
 543         // size of the moving object
 544         vec3_t clipmins, clipmaxs;
 545         // size when clipping against monsters
 546         vec3_t clipmins2, clipmaxs2;
 547         // start and end origin of move
 548         vec3_t clipstart, clipend;
 549         // trace results
 550         trace_t cliptrace;
 551         int numtouchedicts;
 552         prvm_edict_t *touchedicts[MAX_EDICTS];
 553
 554         VectorCopy(start, clipstart);
 555         VectorCopy(end, clipend);
 556         VectorCopy(mins, clipmins);
 557         VectorCopy(maxs, clipmaxs);
 558         VectorCopy(mins, clipmins2);
 559         VectorCopy(maxs, clipmaxs2);
 560 #if COLLISIONPARANOID >= 3
 561         Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
 562 #endif
 563
 564         hitsupercontentsmask = SUPERCONTENTS_SOLID;
 565         if (passedict)
 566         {
 567                 if (passedict->fields.client->solid == SOLID_SLIDEBOX)
 568                         hitsupercontentsmask |= SUPERCONTENTS_PLAYERCLIP;
 569                 if ((int)passedict->fields.client->flags & FL_MONSTER)
 570                         hitsupercontentsmask |= SUPERCONTENTS_MONSTERCLIP;
 571         }
 572
 573         // clip to world
 574         cliptrace = CSSV_ClipMoveToEntity(prog->edicts, clipstart, clipmins, clipmaxs, clipend, type, hitsupercontentsmask);
 575         cliptrace.bmodelstartsolid = cliptrace.startsolid;
 576         if (cliptrace.startsolid || cliptrace.fraction < 1)
 577                 cliptrace.ent = prog->edicts;
 578         if (type == MOVE_WORLDONLY)
 579                 return cliptrace;
 580
 581         if (type == MOVE_MISSILE)
 582         {
 583                 // LordHavoc: modified this, was = -15, now -= 15
 584                 for (i = 0;i < 3;i++)
 585                 {
 586                         clipmins2[i] -= 15;
 587                         clipmaxs2[i] += 15;
 588                 }
 589         }
 590
 591         // get adjusted box for bmodel collisions if the world is q1bsp or hlbsp
 592         if (cl.worldmodel && cl.worldmodel->brush.RoundUpToHullSize)
 593                 cl.worldmodel->brush.RoundUpToHullSize(cl.worldmodel, clipmins, clipmaxs, hullmins, hullmaxs);
 594         else
 595         {
 596                 VectorCopy(clipmins, hullmins);
 597                 VectorCopy(clipmaxs, hullmaxs);
 598         }
 599
 600         // create the bounding box of the entire move
 601         for (i = 0;i < 3;i++)
 602         {
 603                 clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + min(hullmins[i], clipmins2[i]) - 1;
 604                 clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + max(hullmaxs[i], clipmaxs2[i]) + 1;
 605         }
 606
 607         // debug override to test against everything
 608         if (sv_debugmove.integer)
 609         {
 610                 clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
 611                 clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  999999999;
 612         }
 613
 614         // if the passedict is world, make it NULL (to avoid two checks each time)
 615         if (passedict == prog->edicts)
 616                 passedict = NULL;
 617         // precalculate prog value for passedict for comparisons
 618         passedictprog = PRVM_EDICT_TO_PROG(passedict);
 619         // figure out whether this is a point trace for comparisons
 620         pointtrace = VectorCompare(clipmins, clipmaxs);
 621         // precalculate passedict's owner edict pointer for comparisons
 622         traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.client->owner) : 0;
 623
 624         // clip to enttiies
 625         numtouchedicts = CSSV_EntitiesInBox(clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
 626         if (numtouchedicts > MAX_EDICTS)
 627         {
 628                 // this never happens
 629                 Con_Printf("CSSV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
 630                 numtouchedicts = MAX_EDICTS;
 631         }
 632         for (i = 0;i < numtouchedicts;i++)
 633         {
 634                 touch = touchedicts[i];
 635
 636                 if (touch->fields.client->solid < SOLID_BBOX)
 637                         continue;
 638                 if (type == MOVE_NOMONSTERS && touch->fields.client->solid != SOLID_BSP)
 639                         continue;
 640
 641                 if (passedict)
 642                 {
 643                         // don't clip against self
 644                         if (passedict == touch)
 645                                 continue;
 646                         // don't clip owned entities against owner
 647                         if (traceowner == touch)
 648                                 continue;
 649                         // don't clip owner against owned entities
 650                         if (passedictprog == touch->fields.client->owner)
 651                                 continue;
 652                         // don't clip points against points (they can't collide)
 653                         if (pointtrace && VectorCompare(touch->fields.client->mins, touch->fields.client->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.client->flags & FL_MONSTER)))
 654                                 continue;
 655                         // don't clip corpse against character
 656                         if (passedict->fields.client->solid == SOLID_CORPSE && (touch->fields.client->solid == SOLID_SLIDEBOX || touch->fields.client->solid == SOLID_CORPSE))
 657                                 continue;
 658                         // don't clip character against corpse
 659                         if (passedict->fields.client->solid == SOLID_SLIDEBOX && touch->fields.client->solid == SOLID_CORPSE)
 660                                 continue;
 661                 }
 662
 663                 // might interact, so do an exact clip
 664                 if ((int)touch->fields.client->flags & FL_MONSTER)
 665                         trace = CSSV_ClipMoveToEntity(touch, clipstart, clipmins2, clipmaxs2, clipend, type, hitsupercontentsmask);
 666                 else
 667                         trace = CSSV_ClipMoveToEntity(touch, clipstart, clipmins, clipmaxs, clipend, type, hitsupercontentsmask);
 668                 // LordHavoc: take the 'best' answers from the new trace and combine with existing data
 669                 if (trace.allsolid)
 670                         cliptrace.allsolid = true;
 671                 if (trace.startsolid)
 672                 {
 673                         if (touch->fields.client->solid == SOLID_BSP)
 674                                 cliptrace.bmodelstartsolid = true;
 675                         cliptrace.startsolid = true;
 676                         if (cliptrace.realfraction == 1)
 677                                 cliptrace.ent = touch;
 678                 }
 679                 // don't set this except on the world, because it can easily confuse
 680                 // monsters underwater if there's a bmodel involved in the trace
 681                 // (inopen && inwater is how they check water visibility)
 682                 //if (trace.inopen)
 683                 //      cliptrace.inopen = true;
 684                 if (trace.inwater)
 685                         cliptrace.inwater = true;
 686                 if (trace.realfraction < cliptrace.realfraction)
 687                 {
 688                         cliptrace.fraction = trace.fraction;
 689                         cliptrace.realfraction = trace.realfraction;
 690                         VectorCopy(trace.endpos, cliptrace.endpos);
 691                         cliptrace.plane = trace.plane;
 692                         cliptrace.ent = touch;
 693                 }
 694                 cliptrace.startsupercontents |= trace.startsupercontents;
 695         }
 696
 697         return cliptrace;
 698 }
 699
 700 #if COLLISIONPARANOID >= 1
 701 trace_t CSSV_Move(const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int type, prvm_edict_t *passedict)
 702 {
 703         int endstuck;
 704         trace_t trace;
 705         vec3_t temp;
 706         trace = CSSV_Move_(start, mins, maxs, end, type, passedict);
 707         if (passedict)
 708         {
 709                 VectorCopy(trace.endpos, temp);
 710                 endstuck = CSSV_Move_(temp, mins, maxs, temp, type, passedict).startsolid;
 711 #if COLLISIONPARANOID < 3
 712                 if (trace.startsolid || endstuck)
 713 #endif
 714                         Con_Printf("%s{e%i:%f %f %f:%f %f %f:%f:%f %f %f%s%s}\n", (trace.startsolid || endstuck) ? "\002" : "", passedict ? passedict - prog->edicts : -1, passedict->fields.client->origin[0], passedict->fields.client->origin[1], passedict->fields.client->origin[2], end[0] - passedict->fields.client->origin[0], end[1] - passedict->fields.client->origin[1], end[2] - passedict->fields.client->origin[2], trace.fraction, trace.endpos[0] - passedict->fields.client->origin[0], trace.endpos[1] - passedict->fields.client->origin[1], trace.endpos[2] - passedict->fields.client->origin[2], trace.startsolid ? " startstuck" : "", endstuck ? " endstuck" : "");
 715         }
 716         return trace;
 717 }
 718 #endif
 719
 720 int CSSV_PointSuperContents(const vec3_t point)
 721 {
 722         return CSSV_Move(point, vec3_origin, vec3_origin, point, sv_gameplayfix_swiminbmodels.integer ? MOVE_NOMONSTERS : MOVE_WORLDONLY, NULL).startsupercontents;
 723 }
 724
 725 int CSSV_PointQ1Contents(const vec3_t point)
 726 {
 727         return Mod_Q1BSP_NativeContentsFromSuperContents(NULL, CSSV_PointSuperContents(point));
 728 }
 729
 730