# Ruby implementation of Lab 7 for 1005ICT (Java Programming) at Griffith Univeristy.
# Why? To practice learning Ruby

class GameBoard

	attr_accessor :board

	def initialize(row, col)
		@board = Array.new(row) { |row| Array.new(col, 0) }
	end

	def reset_board
		@board.each { |row| row.fill(0) }
	end

	def board_value(row, col)
		puts "Value of board at #{ row },#{ col } is #{ @board[row][col] }"
	end

	def make_move(row, col, player)
		if row < @board.size and col < @board[row].size and @board[row][col] == 0
			@board[row][col] = player
		end
	end

	def print_board
		puts "   #{ (0...@board.size).to_a.join(' ') }"
		@board.collect { |row| puts "#{ @board.index(row) }: #{ row.join(' ') }" }
	end

	def random_move(player)
		make_move(rand(@board.size), rand(@board.size), player)
	end

	# Plays for a specified number of games with the specified number of players. Each
	# player takes their turn in succession and performs a random move
	def play_random_game(games, players)
		player = players
		(1..games).to_a.each do |game|
			if player != 0
				random_move(player)
				player -= 1
			else
				player = players
			end
		end
	end

end

# Let's play a game!

board = GameBoard.new(10, 10)		# Instantiate GameBoard
board.make_move(19, 19, 8)			# Attempt to place at player at an invalid position
board.play_random_game(100, 6)	# Play 100 games with 6 players
board.board_value(7, 5)					# Print which player is at this position on the board to stdout
board.print_board								# Print board to stdout