Function fvi_FindIntersection

physics/findintersection.cpp:2610–2900

#endif

int fvi_FindIntersection(fvi_query *fq, fvi_info *hit_data, bool no_subdivision) {
  int i;
  object *this_obj;
  int last_sim_trigger_faces;

  if (fq->startroom == -1) {
    return HIT_NONE;
  }

#ifndef NED_PHYSICS
  if (Tracking_FVI) {
    mprintf(0, "Track FVI - Ray %d, thisobjnum=%d, startroom=%d, rad=%f\n", FVI_counter, fq->thisobjnum, fq->startroom,
            fq->rad);
  }
#endif

  /////////////////////////////////////////
  // Debug Code
#ifdef USE_RTP
  INT64 curr_time;
  RTP_GETCLOCK(curr_time);

  RTP_tSTARTTIME(fvi_time, curr_time);
  RTP_INCRVALUE(fvi_calls, 1);
#endif

  FVI_counter++;
  /////////////////////////////////////////

  // Setup our globals
  fvi_hit_data_ptr = hit_data;
  fvi_query_ptr = fq;

  if (fq->thisobjnum >= 0)
    this_obj = &Objects[fq->thisobjnum];
  else
    this_obj = nullptr;

  if (fq->rad == 0.0f)
    fvi_zero_rad = true;
  else
    fvi_zero_rad = false;

  ASSERT(fq != nullptr && hit_data != nullptr);

  ASSERT(std::isfinite(fq->p1->x)); // Caller wants to go to infinity!  -- Not FVI's fault.
  ASSERT(std::isfinite(fq->p1->y)); // Caller wants to go to infinity!  -- Not FVI's fault.
  ASSERT(std::isfinite(fq->p1->z)); // Caller wants to go to infinity!  -- Not FVI's fault.

  fvi_movement_delta = *fq->p1 - *fq->p0;

  // mprintf(0, "FVI:----New search----\n");
  // mprintf(0, "FVI: P0 is %f, %f, %f\n", XYZ(fq->p0));
  if (fq->flags & FQ_NEW_RECORD_LIST) {
    Fvi_num_recorded_faces = 0;
  }
  last_sim_trigger_faces = Fvi_num_recorded_faces;