class Bishop

Bishop piece for a game of chess

Public Class Methods

new(color, position) click to toggle source

Initializes a new bishop piece with color and position.

@param [String] color A string denoting the color of the piece. @param [Array<Integer>] position An integer array of length 2 denoting the location of the piece on the board.

Calls superclass method ChessPiece::new

# File lib/chess_pieces/bishop.rb, line 13
def initialize(color, position)
  @move_tree_template = build_bishop_move_tree
  super(color == 'white' ? '♝'.white : '♗', color, position, 3)
end

Protected Instance Methods

build_bishop_move_tree() click to toggle source

Builds a Bishop's move tree. The Bishop can move diagonally as far as the board permits.

@return [MoveTree] move_tree_template A move tree template for the bishop.

# File lib/chess_pieces/bishop.rb, line 25
def build_bishop_move_tree
  move_tree_template = MoveTree.new([0, 0])

  move_tree_template.root.add_child(build_directional_tree_nodes([1, 1]))
  move_tree_template.root.add_child(build_directional_tree_nodes([-1, 1]))
  move_tree_template.root.add_child(build_directional_tree_nodes([1, -1]))
  move_tree_template.root.add_child(build_directional_tree_nodes([-1, -1]))

  move_tree_template
end