Method: LifeCalculator#num_living_neighbors

Defined in:
lib/life_game_viewer/model/life_calculator.rb

#num_living_neighbors(model, row, col) ⇒ Object

Returns an array of [row, col] tuples corresponding to those neighbor cells that are alive.



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# File 'lib/life_game_viewer/model/life_calculator.rb', line 78

def num_living_neighbors(model, row, col)
  neighbors(model, row, col).inject(0) do |num_living, neighbor|
    neighbor_row, neighbor_column = neighbor
    num_living += 1 if model.alive?(neighbor_row, neighbor_column)
    num_living
  end
end