+/*
+==================
+SV_TracePoint
+==================
+*/
+trace_t SV_TracePoint(const vec3_t start, int type, prvm_edict_t *passedict, int hitsupercontentsmask)
+{
+ int i, bodysupercontents;
+ int passedictprog;
+ float pitchsign = 1;
+ prvm_edict_t *traceowner, *touch;
+ trace_t trace;
+ // bounding box of entire move area
+ vec3_t clipboxmins, clipboxmaxs;
+ // size when clipping against monsters
+ vec3_t clipmins2, clipmaxs2;
+ // start and end origin of move
+ vec3_t clipstart;
+ // trace results
+ trace_t cliptrace;
+ // matrices to transform into/out of other entity's space
+ matrix4x4_t matrix, imatrix;
+ // model of other entity
+ dp_model_t *model;
+ // list of entities to test for collisions
+ int numtouchedicts;
+ prvm_edict_t *touchedicts[MAX_EDICTS];
+
+ //return SV_TraceBox(start, vec3_origin, vec3_origin, end, type, passedict, hitsupercontentsmask);
+
+ VectorCopy(start, clipstart);
+ VectorClear(clipmins2);
+ VectorClear(clipmaxs2);
+#if COLLISIONPARANOID >= 3
+ Con_Printf("move(%f %f %f)", clipstart[0], clipstart[1], clipstart[2]);
+#endif
+
+ // clip to world
+ Collision_ClipPointToWorld(&cliptrace, sv.worldmodel, clipstart, hitsupercontentsmask);
+ cliptrace.bmodelstartsolid = cliptrace.startsolid;
+ if (cliptrace.startsolid || cliptrace.fraction < 1)
+ cliptrace.ent = prog->edicts;
+ if (type == MOVE_WORLDONLY)
+ goto finished;
+
+ if (type == MOVE_MISSILE)
+ {
+ // LordHavoc: modified this, was = -15, now -= 15
+ for (i = 0;i < 3;i++)
+ {
+ clipmins2[i] -= 15;
+ clipmaxs2[i] += 15;
+ }
+ }
+
+ // create the bounding box of the entire move
+ for (i = 0;i < 3;i++)
+ {
+ clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + clipmins2[i] - 1;
+ clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + clipmaxs2[i] + 1;
+ }
+
+ // debug override to test against everything
+ if (sv_debugmove.integer)
+ {
+ clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
+ clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] = 999999999;
+ }
+
+ // if the passedict is world, make it NULL (to avoid two checks each time)
+ if (passedict == prog->edicts)
+ passedict = NULL;
+ // precalculate prog value for passedict for comparisons
+ passedictprog = PRVM_EDICT_TO_PROG(passedict);
+ // precalculate passedict's owner edict pointer for comparisons
+ traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.server->owner) : 0;
+
+ // clip to entities
+ // because this uses World_EntitiestoBox, we know all entity boxes overlap
+ // the clip region, so we can skip culling checks in the loop below
+ numtouchedicts = World_EntitiesInBox(&sv.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
+ if (numtouchedicts > MAX_EDICTS)
+ {
+ // this never happens
+ Con_Printf("SV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
+ numtouchedicts = MAX_EDICTS;
+ }
+ for (i = 0;i < numtouchedicts;i++)
+ {
+ touch = touchedicts[i];
+
+ if (touch->fields.server->solid < SOLID_BBOX)
+ continue;
+ if (type == MOVE_NOMONSTERS && touch->fields.server->solid != SOLID_BSP)
+ continue;
+
+ if (passedict)
+ {
+ // don't clip against self
+ if (passedict == touch)
+ continue;
+ // don't clip owned entities against owner
+ if (traceowner == touch)
+ continue;
+ // don't clip owner against owned entities
+ if (passedictprog == touch->fields.server->owner)
+ continue;
+ // don't clip points against points (they can't collide)
+ if (VectorCompare(touch->fields.server->mins, touch->fields.server->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.server->flags & FL_MONSTER)))
+ continue;
+ }
+
+ bodysupercontents = touch->fields.server->solid == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
+
+ // might interact, so do an exact clip
+ model = NULL;
+ if ((int) touch->fields.server->solid == SOLID_BSP || type == MOVE_HITMODEL)
+ {
+ unsigned int modelindex = (unsigned int)touch->fields.server->modelindex;
+ // if the modelindex is 0, it shouldn't be SOLID_BSP!
+ if (modelindex > 0 && modelindex < MAX_MODELS)
+ model = sv.models[(int)touch->fields.server->modelindex];
+ pitchsign = SV_GetPitchSign(touch);
+ }
+ if (model)
+ Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.server->origin[0], touch->fields.server->origin[1], touch->fields.server->origin[2], pitchsign * touch->fields.server->angles[0], touch->fields.server->angles[1], touch->fields.server->angles[2], 1);
+ else
+ Matrix4x4_CreateTranslate(&matrix, touch->fields.server->origin[0], touch->fields.server->origin[1], touch->fields.server->origin[2]);
+ Matrix4x4_Invert_Simple(&imatrix, &matrix);
+ if (type == MOVE_MISSILE && (int)touch->fields.server->flags & FL_MONSTER)
+ Collision_ClipToGenericEntity(&trace, model, (int) touch->fields.server->frame, touch->fields.server->mins, touch->fields.server->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipstart, hitsupercontentsmask);
+ else
+ Collision_ClipPointToGenericEntity(&trace, model, (int) touch->fields.server->frame, touch->fields.server->mins, touch->fields.server->maxs, bodysupercontents, &matrix, &imatrix, clipstart, hitsupercontentsmask);
+
+ Collision_CombineTraces(&cliptrace, &trace, (void *)touch, touch->fields.server->solid == SOLID_BSP);
+ }
+
+finished:
+ return cliptrace;
+}
+
+/*
+==================
+SV_TraceLine
+==================
+*/
+#ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
+trace_t SV_TraceLine(const vec3_t start, const vec3_t pEnd, int type, prvm_edict_t *passedict, int hitsupercontentsmask)
+#else
+trace_t SV_TraceLine(const vec3_t start, const vec3_t end, int type, prvm_edict_t *passedict, int hitsupercontentsmask)
+#endif
+{
+ int i, bodysupercontents;
+ int passedictprog;
+ float pitchsign = 1;
+ prvm_edict_t *traceowner, *touch;
+ trace_t trace;
+ // bounding box of entire move area
+ vec3_t clipboxmins, clipboxmaxs;
+ // size when clipping against monsters
+ vec3_t clipmins2, clipmaxs2;
+ // start and end origin of move
+ vec3_t clipstart, clipend;
+ // trace results
+ trace_t cliptrace;
+ // matrices to transform into/out of other entity's space
+ matrix4x4_t matrix, imatrix;
+ // model of other entity
+ dp_model_t *model;
+ // list of entities to test for collisions
+ int numtouchedicts;
+ prvm_edict_t *touchedicts[MAX_EDICTS];
+#ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
+ vec3_t end;
+ vec_t len = 0;
+
+ if(!VectorCompare(start, pEnd))
+ {
+ // TRICK: make the trace 1 qu longer!
+ VectorSubtract(pEnd, start, end);
+ len = VectorNormalizeLength(end);
+ VectorAdd(pEnd, end, end);
+ }
+ else
+ VectorCopy(pEnd, end);
+#endif
+
+ //return SV_TraceBox(start, vec3_origin, vec3_origin, end, type, passedict, hitsupercontentsmask);
+
+ if (VectorCompare(start, end))
+ return SV_TracePoint(start, type, passedict, hitsupercontentsmask);
+
+ VectorCopy(start, clipstart);
+ VectorCopy(end, clipend);
+ VectorClear(clipmins2);
+ VectorClear(clipmaxs2);
+#if COLLISIONPARANOID >= 3
+ Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
+#endif
+
+ // clip to world
+ Collision_ClipLineToWorld(&cliptrace, sv.worldmodel, clipstart, clipend, hitsupercontentsmask);
+ cliptrace.bmodelstartsolid = cliptrace.startsolid;
+ if (cliptrace.startsolid || cliptrace.fraction < 1)
+ cliptrace.ent = prog->edicts;
+ if (type == MOVE_WORLDONLY)
+ goto finished;
+
+ if (type == MOVE_MISSILE)
+ {
+ // LordHavoc: modified this, was = -15, now -= 15
+ for (i = 0;i < 3;i++)
+ {
+ clipmins2[i] -= 15;
+ clipmaxs2[i] += 15;
+ }
+ }
+
+ // create the bounding box of the entire move
+ for (i = 0;i < 3;i++)
+ {
+ clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + clipmins2[i] - 1;
+ clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + clipmaxs2[i] + 1;
+ }
+
+ // debug override to test against everything
+ if (sv_debugmove.integer)
+ {
+ clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
+ clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] = 999999999;
+ }
+
+ // if the passedict is world, make it NULL (to avoid two checks each time)
+ if (passedict == prog->edicts)
+ passedict = NULL;
+ // precalculate prog value for passedict for comparisons
+ passedictprog = PRVM_EDICT_TO_PROG(passedict);
+ // precalculate passedict's owner edict pointer for comparisons
+ traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.server->owner) : 0;
+
+ // clip to entities
+ // because this uses World_EntitiestoBox, we know all entity boxes overlap
+ // the clip region, so we can skip culling checks in the loop below
+ numtouchedicts = World_EntitiesInBox(&sv.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
+ if (numtouchedicts > MAX_EDICTS)
+ {
+ // this never happens
+ Con_Printf("SV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
+ numtouchedicts = MAX_EDICTS;
+ }
+ for (i = 0;i < numtouchedicts;i++)
+ {
+ touch = touchedicts[i];
+
+ if (touch->fields.server->solid < SOLID_BBOX)
+ continue;
+ if (type == MOVE_NOMONSTERS && touch->fields.server->solid != SOLID_BSP)
+ continue;
+
+ if (passedict)
+ {
+ // don't clip against self
+ if (passedict == touch)
+ continue;
+ // don't clip owned entities against owner
+ if (traceowner == touch)
+ continue;
+ // don't clip owner against owned entities
+ if (passedictprog == touch->fields.server->owner)
+ continue;
+ // don't clip points against points (they can't collide)
+ if (VectorCompare(touch->fields.server->mins, touch->fields.server->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.server->flags & FL_MONSTER)))
+ continue;
+ }
+
+ bodysupercontents = touch->fields.server->solid == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
+
+ // might interact, so do an exact clip
+ model = NULL;
+ if ((int) touch->fields.server->solid == SOLID_BSP || type == MOVE_HITMODEL)
+ {
+ unsigned int modelindex = (unsigned int)touch->fields.server->modelindex;
+ // if the modelindex is 0, it shouldn't be SOLID_BSP!
+ if (modelindex > 0 && modelindex < MAX_MODELS)
+ model = sv.models[(int)touch->fields.server->modelindex];
+ pitchsign = SV_GetPitchSign(touch);
+ }
+ if (model)
+ Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.server->origin[0], touch->fields.server->origin[1], touch->fields.server->origin[2], pitchsign * touch->fields.server->angles[0], touch->fields.server->angles[1], touch->fields.server->angles[2], 1);
+ else
+ Matrix4x4_CreateTranslate(&matrix, touch->fields.server->origin[0], touch->fields.server->origin[1], touch->fields.server->origin[2]);
+ Matrix4x4_Invert_Simple(&imatrix, &matrix);
+ if (type == MOVE_MISSILE && (int)touch->fields.server->flags & FL_MONSTER)
+ Collision_ClipToGenericEntity(&trace, model, (int) touch->fields.server->frame, touch->fields.server->mins, touch->fields.server->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipend, hitsupercontentsmask);
+ else
+ Collision_ClipLineToGenericEntity(&trace, model, (int) touch->fields.server->frame, touch->fields.server->mins, touch->fields.server->maxs, bodysupercontents, &matrix, &imatrix, clipstart, clipend, hitsupercontentsmask);
+
+ Collision_CombineTraces(&cliptrace, &trace, (void *)touch, touch->fields.server->solid == SOLID_BSP);
+ }
+
+finished:
+#ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND
+ if(!VectorCompare(start, pEnd))
+ Collision_ShortenTrace(&cliptrace, len / (len + 1), pEnd);
+#endif
+ return cliptrace;
+}
+