-
-
-
-/*
-===============================================================================
-
-POINT TESTING IN HULLS
-
-===============================================================================
-*/
-
-/*
-============
-SV_TestEntityPosition
-
-This could be a lot more efficient...
-============
-*/
-int SV_TestEntityPosition (edict_t *ent)
-{
- return SV_Move (ent->v->origin, ent->v->mins, ent->v->maxs, ent->v->origin, MOVE_NORMAL, ent).startsolid;
-}
-
-
-/*
-===============================================================================
-
-LINE TESTING IN HULLS
-
-===============================================================================
-*/
-
-/*
-==================
-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)
-{
- int i;
- trace_t trace;
- model_t *model = NULL;
-
- if ((int) ent->v->solid == SOLID_BSP)
- {
- i = ent->v->modelindex;
- if ((unsigned int) i >= MAX_MODELS)
- Host_Error("SV_ClipMoveToEntity: invalid modelindex\n");
- model = sv.models[i];
- if (i != 0 && model == NULL)
- Host_Error("SV_ClipMoveToEntity: invalid modelindex\n");
-
- Mod_CheckLoaded(model);
- if (model->type != mod_brush)
- {
- Con_Printf ("SV_ClipMoveToEntity: SOLID_BSP with a non bsp model, entity dump:\n");
- ED_Print (ent);
- Host_Error ("SV_ClipMoveToEntity: SOLID_BSP with a non bsp model\n");
- }
- if (ent->v->movetype != MOVETYPE_PUSH)
- Host_Error ("SV_ClipMoveToEntity: SOLID_BSP without MOVETYPE_PUSH");
- }
-
- if (sv_polygoncollisions.integer && (mins[0] != maxs[0] || mins[1] != maxs[1] || mins[2] != maxs[2]))
- Collision_PolygonClipTrace(&trace, ent, model, ent->v->origin, ent->v->angles, ent->v->mins, ent->v->maxs, start, mins, maxs, end);
- else
- Collision_ClipTrace(&trace, ent, model, ent->v->origin, ent->v->angles, ent->v->mins, ent->v->maxs, start, mins, maxs, end);
-
- return trace;
-}
-
-//===========================================================================
-
-void SV_ClipToNode(moveclip_t *clip, link_t *list)
-{
- link_t *l, *next;
- edict_t *touch;
- trace_t trace;
-
- sv_areagrid_stats_nodechecks++;
- for (l = list->next;l != list;l = next)
- {
- next = l->next;
- touch = EDICT_NUM(l->entitynumber);
- if (touch->e->areagridmarknumber == sv_areagrid_marknumber)
- continue;
- touch->e->areagridmarknumber = sv_areagrid_marknumber;
- sv_areagrid_stats_entitychecks++;
-
- if (clip->boxmins[0] > touch->v->absmax[0]
- || clip->boxmaxs[0] < touch->v->absmin[0]
- || clip->boxmins[1] > touch->v->absmax[1]
- || clip->boxmaxs[1] < touch->v->absmin[1]
- || clip->boxmins[2] > touch->v->absmax[2]
- || clip->boxmaxs[2] < touch->v->absmin[2])
- continue;
-
- if (clip->type == MOVE_NOMONSTERS && touch->v->solid != SOLID_BSP)
- continue;
-
- if (touch->v->solid == SOLID_NOT)
- continue;
-
- if (clip->passedict)
- {
- if (clip->passedict->v->size[0] && !touch->v->size[0])
- continue; // points never interact
- 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
- // LordHavoc: corpse code
- if (clip->passedict->v->solid == SOLID_CORPSE && (touch->v->solid == SOLID_SLIDEBOX || touch->v->solid == SOLID_CORPSE))
- continue;
- if (clip->passedict->v->solid == SOLID_SLIDEBOX && touch->v->solid == SOLID_CORPSE)
- continue;
- }
-
- if (touch == clip->passedict)
- continue;
- if (touch->v->solid == SOLID_TRIGGER)
- {
- ED_Print(touch);
- Host_Error ("Trigger in clipping list");
- }
-
- // might interact, so do an exact clip
- if (touch->v->solid == SOLID_BSP)
- trace = SV_ClipMoveToEntity (touch, clip->start, clip->hullmins, clip->hullmaxs, clip->end);
- else 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);
- // LordHavoc: take the 'best' answers from the new trace and combine with existing data
- if (trace.allsolid)
- clip->trace.allsolid = true;
- if (trace.startsolid)
- {
- clip->trace.startsolid = true;
- if (!clip->trace.ent)
- clip->trace.ent = trace.ent;
- }
- if (trace.inopen)
- clip->trace.inopen = true;
- if (trace.inwater)
- clip->trace.inwater = true;
- if (trace.fraction < clip->trace.fraction)
- {
- clip->trace.fraction = trace.fraction;
- VectorCopy(trace.endpos, clip->trace.endpos);
- clip->trace.plane = trace.plane;
- clip->trace.endcontents = trace.endcontents;
- clip->trace.ent = trace.ent;
- }
- if (clip->trace.allsolid)
- return;
- }
-}
-
-/*
-====================
-SV_ClipToAreaGrid
-
-Mins and maxs enclose the entire area swept by the move
-====================
-*/
-void SV_ClipToAreaGrid(moveclip_t *clip)
-{
- areagrid_t *grid;
- int igrid[3], igridmins[3], igridmaxs[3];
-
- if (clip->trace.allsolid)
- return;
-
- sv_areagrid_stats_calls++;
- sv_areagrid_marknumber++;
- igridmins[0] = (int) ((clip->boxmins[0] + sv_areagrid_bias[0]) * sv_areagrid_scale[0]);
- igridmins[1] = (int) ((clip->boxmins[1] + sv_areagrid_bias[1]) * sv_areagrid_scale[1]);
- //igridmins[2] = (int) ((clip->boxmins[2] + sv_areagrid_bias[2]) * sv_areagrid_scale[2]);
- igridmaxs[0] = (int) ((clip->boxmaxs[0] + sv_areagrid_bias[0]) * sv_areagrid_scale[0]) + 1;
- igridmaxs[1] = (int) ((clip->boxmaxs[1] + sv_areagrid_bias[1]) * sv_areagrid_scale[1]) + 1;
- //igridmaxs[2] = (int) ((clip->boxmaxs[2] + sv_areagrid_bias[2]) * sv_areagrid_scale[2]) + 1;
- igridmins[0] = max(0, igridmins[0]);
- igridmins[1] = max(0, igridmins[1]);
- //igridmins[2] = max(0, igridmins[2]);
- igridmaxs[0] = min(AREA_GRID, igridmaxs[0]);
- igridmaxs[1] = min(AREA_GRID, igridmaxs[1]);
- //igridmaxs[2] = min(AREA_GRID, igridmaxs[2]);
-
- if (sv_areagrid_outside.solid_edicts.next != &sv_areagrid_outside.solid_edicts)
- SV_ClipToNode(clip, &sv_areagrid_outside.solid_edicts);
-
- for (igrid[1] = igridmins[1];igrid[1] < igridmaxs[1];igrid[1]++)
- for (grid = sv_areagrid + igrid[1] * AREA_GRID + igridmins[0], igrid[0] = igridmins[0];igrid[0] < igridmaxs[0];igrid[0]++, grid++)
- if (grid->solid_edicts.next != &grid->solid_edicts)
- SV_ClipToNode(clip, &grid->solid_edicts);
-}
-
-
-/*
-==================
-SV_MoveBounds
-==================
-*/
-void SV_MoveBounds (vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end, vec3_t boxmins, vec3_t boxmaxs)
-{
- if (!sv_debugmove.integer)
- {
- 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;
- }
- }
- }
- else
- {
- // debug to test against everything
- boxmins[0] = boxmins[1] = boxmins[2] = -999999999;
- boxmaxs[0] = boxmaxs[1] = boxmaxs[2] = 999999999;
- }
-}
-
-/*
-==================
-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;
- vec3_t bigmins, bigmaxs;
- int i;
-
- memset ( &clip, 0, sizeof ( moveclip_t ) );
-
- VectorCopy(start, clip.start);
- VectorCopy(end, clip.end);
- VectorCopy(mins, clip.mins);
- VectorCopy(maxs, clip.maxs);
- clip.type = type;
- clip.passedict = passedict;
-
- Collision_RoundUpToHullSize(sv.worldmodel, clip.mins, clip.maxs, clip.hullmins, clip.hullmaxs);
-
- if (type == MOVE_MISSILE)
- {
- // LordHavoc: modified this, was = -15, now = clip.mins[i] - 15
- for (i=0 ; i<3 ; i++)
- {
- clip.mins2[i] = clip.mins[i] - 15;
- clip.maxs2[i] = clip.maxs[i] + 15;
- }
- }
- else
- {
- VectorCopy (clip.mins, clip.mins2);
- VectorCopy (clip.maxs, clip.maxs2);
- }
-
- bigmins[0] = min(clip.mins2[0], clip.hullmins[0]);
- bigmaxs[0] = max(clip.maxs2[0], clip.hullmaxs[0]);
- bigmins[1] = min(clip.mins2[1], clip.hullmins[1]);
- bigmaxs[1] = max(clip.maxs2[1], clip.hullmaxs[1]);
- bigmins[2] = min(clip.mins2[2], clip.hullmins[2]);
- bigmaxs[2] = max(clip.maxs2[2], clip.hullmaxs[2]);
-
- // clip to world
- clip.trace = SV_ClipMoveToEntity (sv.edicts, start, mins, maxs, end);
-
- // clip to entities
- // create the bounding box of the entire move
- SV_MoveBounds ( start, bigmins, bigmaxs, end, clip.boxmins, clip.boxmaxs );
-
- SV_ClipToAreaGrid(&clip);
-
- return clip.trace;
-}
-