struct ResFile {
  Str fileName;
  uint start, end; 
};

struct ResLoader {
  fstream p;
  vector< ResFile > files; 
  
  ResLoader() {}
  ResLoader( char *fileName );
  uint set( char *fileName );
  void clear();
  int getIndex( char *subFileName );
  uint open( char *subFileName );
  uint loadFile( char *subFileName, uchar **buf );
  ~ResLoader() { p.close(); files.clear(); }
};