Constant poirebot::game::pieces::DIAGONALS[−][src]

pub const DIAGONALS: &[BitBoard; 15];

The 15 diagonals parallel to the main diagonal. Starts from the bottom to the top, with the main diagonal in the middle:

  • index 0: h1
  • index 1: g1 -> h2 …
  • index 7: a1 to h8 (main diagonal)
  • index 8: a2 to g8 …
  • index 14: a8 A trick to get the diagonal matching a tile is to use the index 7 + rank - file (0-indexed) Or just use the provided get_main_diagonal.