Top Level Namespace

Defined Under Namespace

Classes: Acorn, Cell, Diehard, Display, Grid, RPentomino, Seed, SimpleSpaceship

Instance Method Summary collapse

Instance Method Details

#neighbor_indices ⇒ Object 



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# File 'lib/cell.rb', line 36

def neighbor_indices
  y_neighbors = [-1, 0, 1].product([@coordinates[1]]).map(&:sum)
  x_neighbors = [-1, 0, 1].product([@coordinates[0]]).map(&:sum)
  neighbors = x_neighbors.product(y_neighbors)
  neighbors -= [@coordinates]
  neighbors.map do |n_coords|
    [n_coords[0] % Grid::ROWS, n_coords[1] % Grid::COLS]
  end
end