battleship

ships.rb

known_ships = [
  ["Cruiser", 3],
  ["Submarine", 2]
]

cells = []
%w( A B C D ).each do |x|
  (1..4).each do |y|
    cells << "#{x}#{y}"
  end
end

known_ships.each do |s|
  name, len = s
  xy = cells.sample
  dir = rand(2)
  others = [xy.dup]
  (len-1).times do
    xy[dir] = xy[dir].next
      others << xy.dup    
  end
  # if valid...
  puts "#{name}: #{others}"
  cells -= others
  p cells
end