44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
#ifndef CHESS_ENGINE_SQUARE_HPP
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#define CHESS_ENGINE_SQUARE_HPP
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#include <optional>
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#include <iosfwd>
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#include <string>
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class Square {
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public:
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using Coordinate = unsigned;
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using Index = unsigned;
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using Optional = std::optional<Square>;
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static Optional fromCoordinates(Coordinate file, Coordinate rank);
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static Optional fromIndex(Index index);
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static Optional fromName(const std::string& name);
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Coordinate file() const;
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Coordinate rank() const;
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Index index() const;
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static const Square A1, B1, C1, D1, E1, F1, G1, H1;
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static const Square A2, B2, C2, D2, E2, F2, G2, H2;
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static const Square A3, B3, C3, D3, E3, F3, G3, H3;
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static const Square A4, B4, C4, D4, E4, F4, G4, H4;
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static const Square A5, B5, C5, D5, E5, F5, G5, H5;
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static const Square A6, B6, C6, D6, E6, F6, G6, H6;
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static const Square A7, B7, C7, D7, E7, F7, G7, H7;
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static const Square A8, B8, C8, D8, E8, F8, G8, H8;
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private:
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Square(Index index);
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};
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std::ostream& operator<<(std::ostream& os, const Square& square);
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// Necessary to support Square as the key in std::map.
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bool operator<(const Square& lhs, const Square& rhs);
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bool operator==(const Square& lhs, const Square& rhs);
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#endif
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