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- /*
- Copyright (C) 1996-1997 Id Software, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
- See the GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
- // world.c -- world query functions
-
- #include "qwsvdef.h"
-
- /*
-
- entities never clip against themselves, or their owner
-
- line of sight checks trace->crosscontent, but bullets don't
-
- */
-
-
- typedef struct
- {
- vec3_t boxmins, boxmaxs;// enclose the test object along entire move
- float *mins, *maxs; // size of the moving object
- vec3_t mins2, maxs2; // size when clipping against mosnters
- float *start, *end;
- trace_t trace;
- int type;
- edict_t *passedict;
- } moveclip_t;
-
-
- int SV_HullPointContents (hull_t *hull, int num, vec3_t p);
-
- /*
- ===============================================================================
-
- HULL BOXES
-
- ===============================================================================
- */
-
-
- static hull_t box_hull;
- static dclipnode_t box_clipnodes[6];
- static mplane_t box_planes[6];
-
- /*
- ===================
- SV_InitBoxHull
-
- Set up the planes and clipnodes so that the six floats of a bounding box
- can just be stored out and get a proper hull_t structure.
- ===================
- */
- void SV_InitBoxHull (void)
- {
- int i;
- int side;
-
- box_hull.clipnodes = box_clipnodes;
- box_hull.planes = box_planes;
- box_hull.firstclipnode = 0;
- box_hull.lastclipnode = 5;
-
- for (i=0 ; i<6 ; i++)
- {
- box_clipnodes[i].planenum = i;
-
- side = i&1;
-
- box_clipnodes[i].children[side] = CONTENTS_EMPTY;
- if (i != 5)
- box_clipnodes[i].children[side^1] = i + 1;
- else
- box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
-
- box_planes[i].type = i>>1;
- box_planes[i].normal[i>>1] = 1;
- }
-
- }
-
-
- /*
- ===================
- SV_HullForBox
-
- To keep everything totally uniform, bounding boxes are turned into small
- BSP trees instead of being compared directly.
- ===================
- */
- hull_t *SV_HullForBox (vec3_t mins, vec3_t maxs)
- {
- box_planes[0].dist = maxs[0];
- box_planes[1].dist = mins[0];
- box_planes[2].dist = maxs[1];
- box_planes[3].dist = mins[1];
- box_planes[4].dist = maxs[2];
- box_planes[5].dist = mins[2];
-
- return &box_hull;
- }
-
-
-
- /*
- ================
- SV_HullForEntity
-
- Returns a hull that can be used for testing or clipping an object of mins/maxs
- size.
- Offset is filled in to contain the adjustment that must be added to the
- testing object's origin to get a point to use with the returned hull.
- ================
- */
- hull_t *SV_HullForEntity (edict_t *ent, vec3_t mins, vec3_t maxs, vec3_t offset)
- {
- model_t *model;
- vec3_t size;
- vec3_t hullmins, hullmaxs;
- hull_t *hull;
-
- // decide which clipping hull to use, based on the size
- if (ent->v.solid == SOLID_BSP)
- { // explicit hulls in the BSP model
- if (ent->v.movetype != MOVETYPE_PUSH)
- SV_Error ("SOLID_BSP without MOVETYPE_PUSH");
-
- model = sv.models[ (int)ent->v.modelindex ];
-
- if (!model || model->type != mod_brush)
- SV_Error ("MOVETYPE_PUSH with a non bsp model");
-
- VectorSubtract (maxs, mins, size);
- if (size[0] < 3)
- hull = &model->hulls[0];
- else if (size[0] <= 32)
- hull = &model->hulls[1];
- else
- hull = &model->hulls[2];
-
- // calculate an offset value to center the origin
- VectorSubtract (hull->clip_mins, mins, offset);
- VectorAdd (offset, ent->v.origin, offset);
- }
- else
- { // create a temp hull from bounding box sizes
-
- VectorSubtract (ent->v.mins, maxs, hullmins);
- VectorSubtract (ent->v.maxs, mins, hullmaxs);
- hull = SV_HullForBox (hullmins, hullmaxs);
-
- VectorCopy (ent->v.origin, offset);
- }
-
-
- return hull;
- }
-
- /*
- ===============================================================================
-
- ENTITY AREA CHECKING
-
- ===============================================================================
- */
-
-
- areanode_t sv_areanodes[AREA_NODES];
- int sv_numareanodes;
-
- /*
- ===============
- SV_CreateAreaNode
-
- ===============
- */
- areanode_t *SV_CreateAreaNode (int depth, vec3_t mins, vec3_t maxs)
- {
- areanode_t *anode;
- vec3_t size;
- vec3_t mins1, maxs1, mins2, maxs2;
-
- anode = &sv_areanodes[sv_numareanodes];
- sv_numareanodes++;
-
- ClearLink (&anode->trigger_edicts);
- ClearLink (&anode->solid_edicts);
-
- if (depth == AREA_DEPTH)
- {
- anode->axis = -1;
- anode->children[0] = anode->children[1] = NULL;
- return anode;
- }
-
- VectorSubtract (maxs, mins, size);
- if (size[0] > size[1])
- anode->axis = 0;
- else
- anode->axis = 1;
-
- anode->dist = 0.5 * (maxs[anode->axis] + mins[anode->axis]);
- VectorCopy (mins, mins1);
- VectorCopy (mins, mins2);
- VectorCopy (maxs, maxs1);
- VectorCopy (maxs, maxs2);
-
- maxs1[anode->axis] = mins2[anode->axis] = anode->dist;
-
- anode->children[0] = SV_CreateAreaNode (depth+1, mins2, maxs2);
- anode->children[1] = SV_CreateAreaNode (depth+1, mins1, maxs1);
-
- return anode;
- }
-
- /*
- ===============
- SV_ClearWorld
-
- ===============
- */
- void SV_ClearWorld (void)
- {
- SV_InitBoxHull ();
-
- memset (sv_areanodes, 0, sizeof(sv_areanodes));
- sv_numareanodes = 0;
- SV_CreateAreaNode (0, sv.worldmodel->mins, sv.worldmodel->maxs);
- }
-
-
- /*
- ===============
- SV_UnlinkEdict
-
- ===============
- */
- void SV_UnlinkEdict (edict_t *ent)
- {
- if (!ent->area.prev)
- return; // not linked in anywhere
- RemoveLink (&ent->area);
- ent->area.prev = ent->area.next = NULL;
- }
-
-
- /*
- ====================
- SV_TouchLinks
- ====================
- */
- void SV_TouchLinks ( edict_t *ent, areanode_t *node )
- {
- link_t *l, *next;
- edict_t *touch;
- int old_self, old_other;
-
- // touch linked edicts
- for (l = node->trigger_edicts.next ; l != &node->trigger_edicts ; l = next)
- {
- next = l->next;
- touch = EDICT_FROM_AREA(l);
- if (touch == ent)
- continue;
- if (!touch->v.touch || touch->v.solid != SOLID_TRIGGER)
- continue;
- if (ent->v.absmin[0] > touch->v.absmax[0]
- || ent->v.absmin[1] > touch->v.absmax[1]
- || ent->v.absmin[2] > touch->v.absmax[2]
- || ent->v.absmax[0] < touch->v.absmin[0]
- || ent->v.absmax[1] < touch->v.absmin[1]
- || ent->v.absmax[2] < touch->v.absmin[2] )
- continue;
-
- old_self = pr_global_struct->self;
- old_other = pr_global_struct->other;
-
- pr_global_struct->self = EDICT_TO_PROG(touch);
- pr_global_struct->other = EDICT_TO_PROG(ent);
- pr_global_struct->time = sv.time;
- PR_ExecuteProgram (touch->v.touch);
-
- pr_global_struct->self = old_self;
- pr_global_struct->other = old_other;
- }
-
- // recurse down both sides
- if (node->axis == -1)
- return;
-
- if ( ent->v.absmax[node->axis] > node->dist )
- SV_TouchLinks ( ent, node->children[0] );
- if ( ent->v.absmin[node->axis] < node->dist )
- SV_TouchLinks ( ent, node->children[1] );
- }
-
-
- /*
- ===============
- SV_FindTouchedLeafs
-
- ===============
- */
- void SV_FindTouchedLeafs (edict_t *ent, mnode_t *node)
- {
- mplane_t *splitplane;
- mleaf_t *leaf;
- int sides;
- int leafnum;
-
- if (node->contents == CONTENTS_SOLID)
- return;
-
- // add an efrag if the node is a leaf
-
- if ( node->contents < 0)
- {
- if (ent->num_leafs == MAX_ENT_LEAFS)
- return;
-
- leaf = (mleaf_t *)node;
- leafnum = leaf - sv.worldmodel->leafs - 1;
-
- ent->leafnums[ent->num_leafs] = leafnum;
- ent->num_leafs++;
- return;
- }
-
- // NODE_MIXED
-
- splitplane = node->plane;
- sides = BOX_ON_PLANE_SIDE(ent->v.absmin, ent->v.absmax, splitplane);
-
- // recurse down the contacted sides
- if (sides & 1)
- SV_FindTouchedLeafs (ent, node->children[0]);
-
- if (sides & 2)
- SV_FindTouchedLeafs (ent, node->children[1]);
- }
-
- /*
- ===============
- SV_LinkEdict
-
- ===============
- */
- void SV_LinkEdict (edict_t *ent, qboolean touch_triggers)
- {
- areanode_t *node;
-
- if (ent->area.prev)
- SV_UnlinkEdict (ent); // unlink from old position
-
- if (ent == sv.edicts)
- return; // don't add the world
-
- if (ent->free)
- return;
-
- // set the abs box
- VectorAdd (ent->v.origin, ent->v.mins, ent->v.absmin);
- VectorAdd (ent->v.origin, ent->v.maxs, ent->v.absmax);
-
- //
- // to make items easier to pick up and allow them to be grabbed off
- // of shelves, the abs sizes are expanded
- //
- if ((int)ent->v.flags & FL_ITEM)
- {
- ent->v.absmin[0] -= 15;
- ent->v.absmin[1] -= 15;
- ent->v.absmax[0] += 15;
- ent->v.absmax[1] += 15;
- }
- else
- { // because movement is clipped an epsilon away from an actual edge,
- // we must fully check even when bounding boxes don't quite touch
- ent->v.absmin[0] -= 1;
- ent->v.absmin[1] -= 1;
- ent->v.absmin[2] -= 1;
- ent->v.absmax[0] += 1;
- ent->v.absmax[1] += 1;
- ent->v.absmax[2] += 1;
- }
-
- // link to PVS leafs
- ent->num_leafs = 0;
- if (ent->v.modelindex)
- SV_FindTouchedLeafs (ent, sv.worldmodel->nodes);
-
- if (ent->v.solid == SOLID_NOT)
- return;
-
- // find the first node that the ent's box crosses
- node = sv_areanodes;
- while (1)
- {
- if (node->axis == -1)
- break;
- if (ent->v.absmin[node->axis] > node->dist)
- node = node->children[0];
- else if (ent->v.absmax[node->axis] < node->dist)
- node = node->children[1];
- else
- break; // crosses the node
- }
-
- // link it in
-
- if (ent->v.solid == SOLID_TRIGGER)
- InsertLinkBefore (&ent->area, &node->trigger_edicts);
- else
- InsertLinkBefore (&ent->area, &node->solid_edicts);
-
- // if touch_triggers, touch all entities at this node and decend for more
- if (touch_triggers)
- SV_TouchLinks ( ent, sv_areanodes );
- }
-
-
-
- /*
- ===============================================================================
-
- POINT TESTING IN HULLS
-
- ===============================================================================
- */
-
- #if !id386
-
- /*
- ==================
- SV_HullPointContents
-
- ==================
- */
- int SV_HullPointContents (hull_t *hull, int num, vec3_t p)
- {
- float d;
- dclipnode_t *node;
- mplane_t *plane;
-
- while (num >= 0)
- {
- if (num < hull->firstclipnode || num > hull->lastclipnode)
- SV_Error ("SV_HullPointContents: bad node number");
-
- node = hull->clipnodes + num;
- plane = hull->planes + node->planenum;
-
- if (plane->type < 3)
- d = p[plane->type] - plane->dist;
- else
- d = DotProduct (plane->normal, p) - plane->dist;
- if (d < 0)
- num = node->children[1];
- else
- num = node->children[0];
- }
-
- return num;
- }
-
- #endif // !id386
-
-
- /*
- ==================
- SV_PointContents
-
- ==================
- */
- int SV_PointContents (vec3_t p)
- {
- return SV_HullPointContents (&sv.worldmodel->hulls[0], 0, p);
- }
-
- //===========================================================================
-
- /*
- ============
- SV_TestEntityPosition
-
- A small wrapper around SV_BoxInSolidEntity that never clips against the
- supplied entity.
- ============
- */
- edict_t *SV_TestEntityPosition (edict_t *ent)
- {
- trace_t trace;
-
- trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, ent->v.origin, 0, ent);
-
- if (trace.startsolid)
- return sv.edicts;
-
- return NULL;
- }
-
- /*
- ===============================================================================
-
- LINE TESTING IN HULLS
-
- ===============================================================================
- */
-
- // 1/32 epsilon to keep floating point happy
- #define DIST_EPSILON (0.03125)
-
- /*
- ==================
- SV_RecursiveHullCheck
-
- ==================
- */
- qboolean SV_RecursiveHullCheck (hull_t *hull, int num, float p1f, float p2f, vec3_t p1, vec3_t p2, trace_t *trace)
- {
- dclipnode_t *node;
- mplane_t *plane;
- float t1, t2;
- float frac;
- int i;
- vec3_t mid;
- int side;
- float midf;
-
- // check for empty
- if (num < 0)
- {
- if (num != CONTENTS_SOLID)
- {
- trace->allsolid = false;
- if (num == CONTENTS_EMPTY)
- trace->inopen = true;
- else
- trace->inwater = true;
- }
- else
- trace->startsolid = true;
- return true; // empty
- }
-
- if (num < hull->firstclipnode || num > hull->lastclipnode)
- SV_Error ("SV_RecursiveHullCheck: bad node number");
-
- //
- // find the point distances
- //
- node = hull->clipnodes + num;
- plane = hull->planes + node->planenum;
-
- if (plane->type < 3)
- {
- t1 = p1[plane->type] - plane->dist;
- t2 = p2[plane->type] - plane->dist;
- }
- else
- {
- t1 = DotProduct (plane->normal, p1) - plane->dist;
- t2 = DotProduct (plane->normal, p2) - plane->dist;
- }
-
- #if 1
- if (t1 >= 0 && t2 >= 0)
- return SV_RecursiveHullCheck (hull, node->children[0], p1f, p2f, p1, p2, trace);
- if (t1 < 0 && t2 < 0)
- return SV_RecursiveHullCheck (hull, node->children[1], p1f, p2f, p1, p2, trace);
- #else
- if ( (t1 >= DIST_EPSILON && t2 >= DIST_EPSILON) || (t2 > t1 && t1 >= 0) )
- return SV_RecursiveHullCheck (hull, node->children[0], p1f, p2f, p1, p2, trace);
- if ( (t1 <= -DIST_EPSILON && t2 <= -DIST_EPSILON) || (t2 < t1 && t1 <= 0) )
- return SV_RecursiveHullCheck (hull, node->children[1], p1f, p2f, p1, p2, trace);
- #endif
-
- // put the crosspoint DIST_EPSILON pixels on the near side
- if (t1 < 0)
- frac = (t1 + DIST_EPSILON)/(t1-t2);
- else
- frac = (t1 - DIST_EPSILON)/(t1-t2);
- if (frac < 0)
- frac = 0;
- if (frac > 1)
- frac = 1;
-
- midf = p1f + (p2f - p1f)*frac;
- for (i=0 ; i<3 ; i++)
- mid[i] = p1[i] + frac*(p2[i] - p1[i]);
-
- side = (t1 < 0);
-
- // move up to the node
- if (!SV_RecursiveHullCheck (hull, node->children[side], p1f, midf, p1, mid, trace) )
- return false;
-
- #ifdef PARANOID
- if (SV_HullPointContents (sv_hullmodel, mid, node->children[side])
- == CONTENTS_SOLID)
- {
- Con_Printf ("mid PointInHullSolid\n");
- return false;
- }
- #endif
-
- if (SV_HullPointContents (hull, node->children[side^1], mid)
- != CONTENTS_SOLID)
- // go past the node
- return SV_RecursiveHullCheck (hull, node->children[side^1], midf, p2f, mid, p2, trace);
-
- if (trace->allsolid)
- return false; // never got out of the solid area
-
- //==================
- // the other side of the node is solid, this is the impact point
- //==================
- if (!side)
- {
- VectorCopy (plane->normal, trace->plane.normal);
- trace->plane.dist = plane->dist;
- }
- else
- {
- VectorSubtract (vec3_origin, plane->normal, trace->plane.normal);
- trace->plane.dist = -plane->dist;
- }
-
- while (SV_HullPointContents (hull, hull->firstclipnode, mid)
- == CONTENTS_SOLID)
- { // shouldn't really happen, but does occasionally
- frac -= 0.1;
- if (frac < 0)
- {
- trace->fraction = midf;
- VectorCopy (mid, trace->endpos);
- Con_Printf ("backup past 0\n");
- return false;
- }
- midf = p1f + (p2f - p1f)*frac;
- for (i=0 ; i<3 ; i++)
- mid[i] = p1[i] + frac*(p2[i] - p1[i]);
- }
-
- trace->fraction = midf;
- VectorCopy (mid, trace->endpos);
-
- return false;
- }
-
-
- /*
- ==================
- SV_ClipMoveToEntity
-
- Handles selection or creation of a clipping hull, and offseting (and
- eventually rotation) of the end points
- ==================
- */
- trace_t SV_ClipMoveToEntity (edict_t *ent, vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end)
- {
- trace_t trace;
- vec3_t offset;
- vec3_t start_l, end_l;
- hull_t *hull;
-
- // fill in a default trace
- memset (&trace, 0, sizeof(trace_t));
- trace.fraction = 1;
- trace.allsolid = true;
- VectorCopy (end, trace.endpos);
-
- // get the clipping hull
- hull = SV_HullForEntity (ent, mins, maxs, offset);
-
- VectorSubtract (start, offset, start_l);
- VectorSubtract (end, offset, end_l);
-
- // trace a line through the apropriate clipping hull
- SV_RecursiveHullCheck (hull, hull->firstclipnode, 0, 1, start_l, end_l, &trace);
-
- // fix trace up by the offset
- if (trace.fraction != 1)
- VectorAdd (trace.endpos, offset, trace.endpos);
-
- // did we clip the move?
- if (trace.fraction < 1 || trace.startsolid )
- trace.ent = ent;
-
- return trace;
- }
-
- //===========================================================================
-
- /*
- ====================
- SV_ClipToLinks
-
- Mins and maxs enclose the entire area swept by the move
- ====================
- */
- void SV_ClipToLinks ( areanode_t *node, moveclip_t *clip )
- {
- link_t *l, *next;
- edict_t *touch;
- trace_t trace;
-
- // touch linked edicts
- for (l = node->solid_edicts.next ; l != &node->solid_edicts ; l = next)
- {
- next = l->next;
- touch = EDICT_FROM_AREA(l);
- if (touch->v.solid == SOLID_NOT)
- continue;
- if (touch == clip->passedict)
- continue;
- if (touch->v.solid == SOLID_TRIGGER)
- SV_Error ("Trigger in clipping list");
-
- if (clip->type == MOVE_NOMONSTERS && touch->v.solid != SOLID_BSP)
- continue;
-
- if (clip->boxmins[0] > touch->v.absmax[0]
- || clip->boxmins[1] > touch->v.absmax[1]
- || clip->boxmins[2] > touch->v.absmax[2]
- || clip->boxmaxs[0] < touch->v.absmin[0]
- || clip->boxmaxs[1] < touch->v.absmin[1]
- || clip->boxmaxs[2] < touch->v.absmin[2] )
- continue;
-
- if (clip->passedict && clip->passedict->v.size[0] && !touch->v.size[0])
- continue; // points never interact
-
- // might intersect, so do an exact clip
- if (clip->trace.allsolid)
- return;
- if (clip->passedict)
- {
- if (PROG_TO_EDICT(touch->v.owner) == clip->passedict)
- continue; // don't clip against own missiles
- if (PROG_TO_EDICT(clip->passedict->v.owner) == touch)
- continue; // don't clip against owner
- }
-
- if ((int)touch->v.flags & FL_MONSTER)
- trace = SV_ClipMoveToEntity (touch, clip->start, clip->mins2, clip->maxs2, clip->end);
- else
- trace = SV_ClipMoveToEntity (touch, clip->start, clip->mins, clip->maxs, clip->end);
- if (trace.allsolid || trace.startsolid ||
- trace.fraction < clip->trace.fraction)
- {
- trace.ent = touch;
- if (clip->trace.startsolid)
- {
- clip->trace = trace;
- clip->trace.startsolid = true;
- }
- else
- clip->trace = trace;
- }
- else if (trace.startsolid)
- clip->trace.startsolid = true;
- }
-
- // recurse down both sides
- if (node->axis == -1)
- return;
-
- if ( clip->boxmaxs[node->axis] > node->dist )
- SV_ClipToLinks ( node->children[0], clip );
- if ( clip->boxmins[node->axis] < node->dist )
- SV_ClipToLinks ( node->children[1], clip );
- }
-
-
- /*
- ==================
- SV_MoveBounds
- ==================
- */
- void SV_MoveBounds (vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end, vec3_t boxmins, vec3_t boxmaxs)
- {
- #if 0
- // debug to test against everything
- boxmins[0] = boxmins[1] = boxmins[2] = -9999;
- boxmaxs[0] = boxmaxs[1] = boxmaxs[2] = 9999;
- #else
- int i;
-
- for (i=0 ; i<3 ; i++)
- {
- if (end[i] > start[i])
- {
- boxmins[i] = start[i] + mins[i] - 1;
- boxmaxs[i] = end[i] + maxs[i] + 1;
- }
- else
- {
- boxmins[i] = end[i] + mins[i] - 1;
- boxmaxs[i] = start[i] + maxs[i] + 1;
- }
- }
- #endif
- }
-
- /*
- ==================
- SV_Move
- ==================
- */
- trace_t SV_Move (vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end, int type, edict_t *passedict)
- {
- moveclip_t clip;
- int i;
-
- memset ( &clip, 0, sizeof ( moveclip_t ) );
-
- // clip to world
- clip.trace = SV_ClipMoveToEntity ( sv.edicts, start, mins, maxs, end );
-
- clip.start = start;
- clip.end = end;
- clip.mins = mins;
- clip.maxs = maxs;
- clip.type = type;
- clip.passedict = passedict;
-
- if (type == MOVE_MISSILE)
- {
- for (i=0 ; i<3 ; i++)
- {
- clip.mins2[i] = -15;
- clip.maxs2[i] = 15;
- }
- }
- else
- {
- VectorCopy (mins, clip.mins2);
- VectorCopy (maxs, clip.maxs2);
- }
-
- // create the bounding box of the entire move
- SV_MoveBounds ( start, clip.mins2, clip.maxs2, end, clip.boxmins, clip.boxmaxs );
-
- // clip to entities
- SV_ClipToLinks ( sv_areanodes, &clip );
-
- return clip.trace;
- }
-
- //=============================================================================
-
- /*
- ============
- SV_TestPlayerPosition
-
- ============
- */
- edict_t *SV_TestPlayerPosition (edict_t *ent, vec3_t origin)
- {
- hull_t *hull;
- edict_t *check;
- vec3_t boxmins, boxmaxs;
- vec3_t offset;
- int e;
-
- // check world first
- hull = &sv.worldmodel->hulls[1];
- if ( SV_HullPointContents (hull, hull->firstclipnode, origin) != CONTENTS_EMPTY )
- return sv.edicts;
-
- // check all entities
- VectorAdd (origin, ent->v.mins, boxmins);
- VectorAdd (origin, ent->v.maxs, boxmaxs);
-
- check = NEXT_EDICT(sv.edicts);
- for (e=1 ; e<sv.num_edicts ; e++, check = NEXT_EDICT(check))
- {
- if (check->free)
- continue;
- if (check->v.solid != SOLID_BSP &&
- check->v.solid != SOLID_BBOX &&
- check->v.solid != SOLID_SLIDEBOX)
- continue;
-
- if (boxmins[0] > check->v.absmax[0]
- || boxmins[1] > check->v.absmax[1]
- || boxmins[2] > check->v.absmax[2]
- || boxmaxs[0] < check->v.absmin[0]
- || boxmaxs[1] < check->v.absmin[1]
- || boxmaxs[2] < check->v.absmin[2] )
- continue;
-
- if (check == ent)
- continue;
-
- // get the clipping hull
- hull = SV_HullForEntity (check, ent->v.mins, ent->v.maxs, offset);
-
- VectorSubtract (origin, offset, offset);
-
- // test the point
- if ( SV_HullPointContents (hull, hull->firstclipnode, offset) != CONTENTS_EMPTY )
- return check;
- }
-
- return NULL;
- }
-
-
-