44 lines
914 B
Swift
44 lines
914 B
Swift
internal final class King: Piece {
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internal weak var board: Board?
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internal var kind: Kind = .King
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internal var unicodeRepresentation: String {
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return color == .Black ? "♛" : "♕"
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}
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internal var color: Color
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internal var position: Square.Position
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internal var pseudoLegalPositions: [Square.Position] {
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return []
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}
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internal var legalPositions: [Square.Position] {
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return pseudoLegalPositions.filter { isLegal(on: $0) }
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}
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internal func move(to dst: Square.Position) -> Bool {
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return false
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}
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internal func isLegal(on pos: Square.Position) -> Bool {
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if let board = board, let s = board[pos] {
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if let p = s.piece {
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if p.color == color { return false }
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if p.kind == .King {
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// TODO: Notify board of check
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return false
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}
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}
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}
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return true
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}
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internal init(color: Color, on position: Square.Position) {
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self.color = color
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self.position = position
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}
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}
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