Class: MailChess::Piece::Pawn

Inherits:
Piece
  • Object
show all
Defined in:
lib/mail_chess/pieces/pawn.rb

Overview

Represents a pawn chess piece.

Instance Attribute Summary

Attributes inherited from Piece

#board, #color, #html, #id, #type

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Piece

create_tables, #delete!, load!, need_to_create_tables?, #position, #save!

Constructor Details

#initialize(db, piece_id, board = nil) ⇒ Pawn

Calls the superclass.



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# File 'lib/mail_chess/pieces/pawn.rb', line 11

def initialize db, piece_id, board = nil
  super db, piece_id, board
  
  @html = @color == :white ? '♙' : '♟'
end

Class Method Details

.new!(db, board, position, color) ⇒ Object

Overwrite superclass method.



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# File 'lib/mail_chess/pieces/pawn.rb', line 18

def self.new! db, board, position, color
  super db, board, position, color
  
  id = db[:pieces].insert(:type => 'pawn', 
                          :color => color.to_s,
                          :position => position,
                          :board_id => board.id)
                          
  return Pawn.new db, id, board
end