Class: PGN::Game
- Inherits:
-
Object
- Object
- PGN::Game
- Defined in:
- lib/pgn/game.rb
Overview
Constant Summary collapse
- LEFT =
/(a|\x1B\[D)\z/.freeze
- RIGHT =
/(d|\x1B\[C)\z/.freeze
- EXIT =
/(q|\x03)\z/.freeze
Instance Attribute Summary collapse
-
#comment ⇒ Object
Returns the value of attribute comment.
-
#moves ⇒ Array<String>
A list of the moves in standard algebraic notation.
-
#pgn ⇒ Object
Returns the value of attribute pgn.
-
#result ⇒ String
The outcome of the game.
-
#tags ⇒ Hash<String, String>
Metadata about the game.
Instance Method Summary collapse
-
#fen_list ⇒ Array<String>
List of the fen representations of the positions.
- #initial_fen ⇒ Object
-
#initialize(moves, tags = nil, result = nil, pgn = nil, comment = nil) ⇒ Game
constructor
A new instance of Game.
-
#play ⇒ Object
Interactively step through the game.
-
#positions ⇒ Array<PGN::Position>
List of the Positions in the game.
- #starting_position ⇒ Object
Constructor Details
#initialize(moves, tags = nil, result = nil, pgn = nil, comment = nil) ⇒ Game
Returns a new instance of Game.
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# File 'lib/pgn/game.rb', line 68 def initialize(moves, = nil, result = nil, pgn = nil, comment = nil) self.moves = moves self. = self.result = result self.pgn = pgn self.comment = comment end |
Instance Attribute Details
#comment ⇒ Object
Returns the value of attribute comment.
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# File 'lib/pgn/game.rb', line 57 def comment @comment end |
#moves ⇒ Array<String>
Returns a list of the moves in standard algebraic notation.
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# File 'lib/pgn/game.rb', line 56 class Game attr_accessor :tags, :result, :pgn, :comment attr_reader :moves LEFT = /(a|\x1B\[D)\z/.freeze RIGHT = /(d|\x1B\[C)\z/.freeze EXIT = /(q|\x03)\z/.freeze # @param moves [Array<String>] a list of moves in SAN # @param tags [Hash<String, String>] metadata about the game # @param result [String] the outcome of the game # def initialize(moves, = nil, result = nil, pgn = nil, comment = nil) self.moves = moves self. = self.result = result self.pgn = pgn self.comment = comment end # @param moves [Array<String>] a list of moves in SAN # # Standardize castling moves to use O's instead of 0's # def moves=(moves) @moves = moves.map do |m| if m.is_a? String MoveText.new(m.gsub('0', 'O')) else MoveText.new(m.notation.gsub('0', 'O'), m.annotation, m.comment, m.variations) end end end def initial_fen && ['FEN'] end def starting_position @starting_position ||= if initial_fen PGN::FEN.new(initial_fen).to_position else PGN::Position.start end end # @return [Array<PGN::Position>] list of the {PGN::Position}s in the game # def positions @positions ||= begin position = starting_position arr = [position] moves.each do |move| new_pos = position.move(move.notation) arr << new_pos position = new_pos end arr end end # @return [Array<String>] list of the fen representations of the positions # def fen_list positions.map { |p| p.to_fen.inspect } end # Interactively step through the game # # Use +d+ to move forward, +a+ to move backward, and +^C+ to exit. # def play index = 0 hist = Array.new(3, '') loop do puts "\e[H\e[2J" puts positions[index].inspect hist[0..2] = (hist[1..2] << STDIN.getch) case hist.join when LEFT index -= 1 if index > 0 when RIGHT index += 1 if index < moves.length when EXIT break end end end end |
#pgn ⇒ Object
Returns the value of attribute pgn.
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# File 'lib/pgn/game.rb', line 57 def pgn @pgn end |
#result ⇒ String
Returns the outcome of the game.
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# File 'lib/pgn/game.rb', line 56 class Game attr_accessor :tags, :result, :pgn, :comment attr_reader :moves LEFT = /(a|\x1B\[D)\z/.freeze RIGHT = /(d|\x1B\[C)\z/.freeze EXIT = /(q|\x03)\z/.freeze # @param moves [Array<String>] a list of moves in SAN # @param tags [Hash<String, String>] metadata about the game # @param result [String] the outcome of the game # def initialize(moves, = nil, result = nil, pgn = nil, comment = nil) self.moves = moves self. = self.result = result self.pgn = pgn self.comment = comment end # @param moves [Array<String>] a list of moves in SAN # # Standardize castling moves to use O's instead of 0's # def moves=(moves) @moves = moves.map do |m| if m.is_a? String MoveText.new(m.gsub('0', 'O')) else MoveText.new(m.notation.gsub('0', 'O'), m.annotation, m.comment, m.variations) end end end def initial_fen && ['FEN'] end def starting_position @starting_position ||= if initial_fen PGN::FEN.new(initial_fen).to_position else PGN::Position.start end end # @return [Array<PGN::Position>] list of the {PGN::Position}s in the game # def positions @positions ||= begin position = starting_position arr = [position] moves.each do |move| new_pos = position.move(move.notation) arr << new_pos position = new_pos end arr end end # @return [Array<String>] list of the fen representations of the positions # def fen_list positions.map { |p| p.to_fen.inspect } end # Interactively step through the game # # Use +d+ to move forward, +a+ to move backward, and +^C+ to exit. # def play index = 0 hist = Array.new(3, '') loop do puts "\e[H\e[2J" puts positions[index].inspect hist[0..2] = (hist[1..2] << STDIN.getch) case hist.join when LEFT index -= 1 if index > 0 when RIGHT index += 1 if index < moves.length when EXIT break end end end end |
#tags ⇒ Hash<String, String>
Returns metadata about the game.
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# File 'lib/pgn/game.rb', line 56 class Game attr_accessor :tags, :result, :pgn, :comment attr_reader :moves LEFT = /(a|\x1B\[D)\z/.freeze RIGHT = /(d|\x1B\[C)\z/.freeze EXIT = /(q|\x03)\z/.freeze # @param moves [Array<String>] a list of moves in SAN # @param tags [Hash<String, String>] metadata about the game # @param result [String] the outcome of the game # def initialize(moves, = nil, result = nil, pgn = nil, comment = nil) self.moves = moves self. = self.result = result self.pgn = pgn self.comment = comment end # @param moves [Array<String>] a list of moves in SAN # # Standardize castling moves to use O's instead of 0's # def moves=(moves) @moves = moves.map do |m| if m.is_a? String MoveText.new(m.gsub('0', 'O')) else MoveText.new(m.notation.gsub('0', 'O'), m.annotation, m.comment, m.variations) end end end def initial_fen && ['FEN'] end def starting_position @starting_position ||= if initial_fen PGN::FEN.new(initial_fen).to_position else PGN::Position.start end end # @return [Array<PGN::Position>] list of the {PGN::Position}s in the game # def positions @positions ||= begin position = starting_position arr = [position] moves.each do |move| new_pos = position.move(move.notation) arr << new_pos position = new_pos end arr end end # @return [Array<String>] list of the fen representations of the positions # def fen_list positions.map { |p| p.to_fen.inspect } end # Interactively step through the game # # Use +d+ to move forward, +a+ to move backward, and +^C+ to exit. # def play index = 0 hist = Array.new(3, '') loop do puts "\e[H\e[2J" puts positions[index].inspect hist[0..2] = (hist[1..2] << STDIN.getch) case hist.join when LEFT index -= 1 if index > 0 when RIGHT index += 1 if index < moves.length when EXIT break end end end end |
Instance Method Details
#fen_list ⇒ Array<String>
Returns list of the fen representations of the positions.
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# File 'lib/pgn/game.rb', line 120 def fen_list positions.map { |p| p.to_fen.inspect } end |
#initial_fen ⇒ Object
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# File 'lib/pgn/game.rb', line 91 def initial_fen && ['FEN'] end |
#play ⇒ Object
Interactively step through the game
Use d
to move forward, a
to move backward, and ^C to exit.
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# File 'lib/pgn/game.rb', line 128 def play index = 0 hist = Array.new(3, '') loop do puts "\e[H\e[2J" puts positions[index].inspect hist[0..2] = (hist[1..2] << STDIN.getch) case hist.join when LEFT index -= 1 if index > 0 when RIGHT index += 1 if index < moves.length when EXIT break end end end |
#positions ⇒ Array<PGN::Position>
Returns list of the Positions in the game.
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# File 'lib/pgn/game.rb', line 105 def positions @positions ||= begin position = starting_position arr = [position] moves.each do |move| new_pos = position.move(move.notation) arr << new_pos position = new_pos end arr end end |