29 lines
717 B
C++
29 lines
717 B
C++
#include "../board/board.hpp"
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#include "../utils/coords.hpp"
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#include "../utils/move.hpp"
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#include "piece.hpp"
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#include <vector>
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std::vector<Move> knight_moves(const Board& b, const Coords xy) {
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std::vector<Move> ret;
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std::vector<std::pair<int, int>> moves = {
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{+2, +1},
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{+1, +2}, // north east
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{+2, -1},
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{+1, -2}, // south east
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{-2, -1},
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{-1, -2}, // south west
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{-2, +1},
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{-1, +2} // north west
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};
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for (const auto& [dx, dy] : moves) {
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std::optional<Move> move =
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move_for_position(b, xy, Coords{xy.x + dx, xy.y + dy});
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if (move.has_value())
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ret.push_back(move.value());
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}
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return ret;
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}
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