NPinController constructor

NPinController({ dynamic shuffle = false, dynamic length = 6, })

• shuffle Disorder the buttons but keep the actions in their position.
• length number of inputs

Implementation

NPinController({shuffle = false, length = 6}) :
assert( length > 3,  Exception('Length must be > 3' ) ),
assert( length < 10, Exception('Length must be < 12') )
{
  _shuffle  = shuffle;
  _length   = length;
  _fillList();
  _buildBoard();
}