final class Rook: Piece, LinearMoves {

	override var unicodeRepresentation: String {
		return color == .Black ? "♜" : "♖"
	}

	override var pseudoLegalPositions: [Square.Position] {
		return getLinearMoves(from: position)
	}

	override var legalPositions: [Square.Position] {
		return pseudoLegalPositions.filter { isLegal(on: $0) }
	}

	override func isLegal(on pos: Square.Position) -> Bool {
		super.isLegal(on: pos)
	}

	init(with color: Color, on position: Square.Position) {
		super.init(kind: .Rook, on: position, with: color)
		self.color = color
		self.kind = .Rook
		self.position = position
	}

}