Function Read3DSMaxFile

editor/Read3ds.cpp:191–389

Opens and reads a 3dsmax file for our rooms. Allocs a room to carry the data Returns the index into the Rooms[] array if successful Return -1 on fail

// Returns the index into the Rooms[] array if successful
// Return -1 on fail
int Read3DSMaxFile(char *filename) {
  uint16_t id;
  int len;
  CFILE *fp;
  int i;

  fp = (CFILE *)cfopen(filename, "rb");
  if (!fp) {
    mprintf(0, "Couldn't open 3dsmax file %s!\n", filename);
    return -1;
  }

  Nest_level = 0;

  // Alloc space for reading stuff in
  Reading_room.faces = (reading_face *)mem_malloc(MAX_READING_ROOM_FACES * sizeof(reading_face));
  Reading_room.verts = (vector *)mem_malloc(MAX_VERTS_PER_ROOM * sizeof(vector));

  Reading_room.num_faces = 0;
  Reading_room.num_verts = 0;

  id = cf_ReadShort(fp);
  len = cf_ReadInt(fp);

  Num_materials = 0;

  if (id == ID_3DS_MODIFIED)
    Parse3DSMaxChunk(fp, len - 6);
  else {
    mprintf(0, "This file is not a 3ds max file!\n");
    cfclose(fp);
    return -1;
  }
  cfclose(fp);

  if ((Reading_room.num_verts == 0) || (Reading_room.num_faces == 0)) {
    OutrageMessageBox("The imported room has %d verts and %d faces.  Aborting import.", Reading_room.num_faces,
                      Reading_room.num_faces);
    return -1;
  }

  if (Reading_room.num_verts > MAX_VERTS_PER_ROOM) {
    OutrageMessageBox("The imported room has %d verts.  The limit is %d.  Aborting import.", Reading_room.num_verts,
                      MAX_VERTS_PER_ROOM);
    return -1;
  }

  if (Reading_room.num_faces > MAX_READING_ROOM_FACES) {
    OutrageMessageBox("The imported room has %d faces.  The limit is %d.  Aborting import.", Reading_room.num_faces,
                      MAX_READING_ROOM_FACES);
    return -1;
  }

  if (Reading_room.num_faces > MAX_FACES_PER_ROOM) {
    OutrageMessageBox("The imported room has %d faces.  The limit after combining faces is %d.\n\nIf there are too "
                      "many faces after combining, this room will not be imported.",
                      Reading_room.num_faces, MAX_FACES_PER_ROOM);
  }