Class: Knight

Inherits:
Piece show all
Defined in:
lib/pieces/knight.rb

Class Method Summary collapse

Methods inherited from Piece

capturable?, destination_occupied?, obstructed?

Class Method Details

.move_is_valid?(orig, dest, board) ⇒ Boolean

Returns:

  • (Boolean) 


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

def self.move_is_valid?(orig, dest, board)
  x_offset = (orig[0] - dest[0]).abs
  y_offset = (orig[1] - dest[1]).abs

  (!destination_occupied?(dest, board) || capturable?(orig, dest, board)) &&
    (x_offset == 2 && y_offset == 1) || (x_offset == 1 && y_offset == 2)
end