main.rb

# frozen_string_literal: true

require './lib/board'

puts <<~TITLE

   ██████ ██   ██ ███████ ███████ ███████
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  ██      ███████ █████   ███████ ███████
  ██      ██   ██ ██           ██      ██
   ██████ ██   ██ ███████ ███████ ███████

  Welcome! this is Command Line Interface (CLI) Implementation of Classic Chess Game using Ruby.

  How to play:
  1. Input the coordinates of the piece you wish to move, and the coordinates of the target square, without spaces.
  Example: 'd2d3', 'h7h5', 'g8f6'
  2. To perform a castling move, input the coordinates of the King and the square where the King will land.
  Example: 'e1g1', 'e8c8'
  3. At any time, Player can save the game by typing 'save'.


TITLE

puts <<~START
  Choose your game:
  1. New Game
  2. Load Game
START

input = nil
loop do
  input = gets.chomp.downcase
  break if %w[1 2].include?(input)

  puts 'Invalid input! Type 1 or 2.'
end

if input == '1'

  puts 'Enter player white name:'
  shiro = gets.chomp
  puts 'Enter player black name:'
  kuro = gets.chomp

  game = Board.new(shiro, kuro)
  if game.play == 'save'
    File.open('./save.data', 'wb') { |f| f.write(Marshal.dump(game)) }
    puts "Game successfully saved to './save.data'."
  end
else
  puts "Game successfully loaded from './save.data'."

  load_game = Marshal.load(File.read('./save.data'))
  load_game.play
end