class TicTacToe
	def initialize
		@board = Array.new(9){|i| "#{i}:__"}
		puts "Welcome to Tic Tac Toe!"
		show_board
		@turn = 1
		choose_spot
	end
 
	def show_board
		puts "\n\n"
		puts "Player 1 may begin. Please place your mark using the numbers provided on the board."
		puts "\n\n"
		puts ">>>>>>>>>>>>>>>"
		puts "#{@board[0]}|#{@board[1]}|#{@board[2]}|\n\n"
		puts "#{@board[3]}|#{@board[4]}|#{@board[5]}|\n\n"
		puts "#{@board[6]}|#{@board[7]}|#{@board[8]}|"
		puts "<<<<<<<<<<<<<<<"
		puts "\n\n"
	end
 
	def choose_spot
		@player = @turn.odd? ? "1" : "2"
		@board_piece = @turn.odd? ? "X" : "O"
		turn += 1
		puts "Player #{@player}, (#{board_piece}). Your turn. Please type a number to put your piece on the board."
		@input = gets.chomp.to_i
		check_valid_spot
	end
 
	def check_valid_spot
		loop do
			board.each do |i|
				if @input.include?(0..8)
					if i.include?("__")
						i.replace(@board_piece)
					else
						puts "Sorry there's already a piece there! Please try again."
					end
				else
					puts "Sorry that isn't a valid number! Please look at the board and try again."
				end
			end
		end
	end
end

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