Function CreateRoomObjects

Descent3/room.cpp:1186–1219

Create objects for the external rooms

// Create objects for the external rooms
void CreateRoomObjects() {
  int objnum, r;
  room *rp;

  // First delete any old room objects
  for (objnum = 0; objnum <= Highest_object_index; objnum++)
    if (Objects[objnum].type == OBJ_ROOM)
      ObjDelete(objnum);

  // Now go through all rooms & create objects for external ones
  for (r = 0, rp = Rooms; r <= Highest_room_index; r++, rp++)
    if (rp->used && (rp->flags & RF_EXTERNAL)) {
      vector pos;
      float rad;
      int roomnum, objnum;

      rad = ComputeRoomBoundingSphere(&pos, rp);
      roomnum = GetTerrainRoomFromPos(&pos);

      ASSERT(roomnum != -1);

      objnum = ObjCreate(OBJ_ROOM, r, roomnum, &pos, NULL);
      ASSERT(objnum != -1); // DAJ -1FIX moved up
      Objects[objnum].size = rad;
      Objects[objnum].wall_sphere_offset = Zero_vector;
      Objects[objnum].anim_sphere_offset = Zero_vector;

      if ((rad >= MIN_BIG_OBJ_RAD) && !(Objects[objnum].flags & OF_BIG_OBJECT)) {
        BigObjAdd(objnum);
      }
      // Type specific should have set up the size, so now we can compute the bounding box.
      ObjSetAABB(&Objects[objnum]);
    }
}

// returns the index of the first room that is being used.  Returns -1 if there are none
int FindFirstUsedRoom() {