Class: SlidingPiece

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

Direct Known Subclasses

Bishop, Queen, Rook

Instance Attribute Summary

Attributes inherited from Piece

#color, #moved, #pos

Instance Method Summary collapse

Methods inherited from Piece

#dup, #in_range_of_enemy?, #initialize, #move_into_check?, #sum_positions, #symbol, #valid_moves

Constructor Details

This class inherits a constructor from Piece

Instance Method Details

#explore(dir) ⇒ Object 



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# File 'lib/pieces/sliding_piece.rb', line 15

def explore(dir)
  pos = @pos.dup
  positions = []

  while @board.on_board?([pos[0] + dir[0], pos[1] + dir[1]])
    pos[0] += dir[0]
    pos[1] += dir[1]
    if @board.occupied?(pos)
      if @board.piece_at(pos).color == self.color
        break
      else
        positions << pos.dup
        break
      end
    end

    positions << pos.dup
  end

  positions
end

#moves ⇒ Object 



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# File 'lib/pieces/sliding_piece.rb', line 6

def moves
  moves = []
  move_dirs.each do |dir|
    moves += explore(dir)
  end

  moves
end