1 files changed, 101 insertions, 0 deletions
diff --git a/src/board/board.hpp b/src/board/board.hpp
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--- /dev/null
+++ b/src/board/board.hpp
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+#ifndef SRC_BOARD_H_
+#define SRC_BOARD_H_
+
+#include <cstdint>
+#include <unordered_map>
+
+enum PieceType {
+  NONEPIECE,
+  PAWN,
+  KNIGHT,
+  BISHOP,
+  ROOK,
+  QUEEN,
+  KING,
+};
+
+enum GameState {
+  TURN,
+  WHITE_WON,
+  BLACK_WON,
+  STALEMATE,
+  DRAW,
+};
+
+struct Piece {
+  bool color = 0;
+  PieceType type = NONEPIECE;
+};
+
+struct Position {
+  uint8_t rank = 0;
+  uint8_t file = 0;
+
+  bool operator==(const Position &) const = default;
+};
+struct TranspositionsEntry {
+  int depth;
+  float Eval;
+};
+struct Game {
+  Piece pieces[64];
+  bool turn = 1; // 1 white; 0 black
+  bool whiteCastleKing = false;
+  bool whiteCastleQueen = false;
+  bool blackCastleKing = false;
+  bool blackCastleQueen = false;
+  uint8_t halfMoveClock = 0;
+  uint16_t MoveClock = 0;
+  Position enPassant;
+  bool canEnpassant = 0;
+  GameState state = TURN;
+  std::unordered_map<uint64_t, int> ThreeFoldMap;
+  std::unordered_map<uint64_t, TranspositionsEntry> *Transpositions = nullptr;
+};
+
+struct Move {
+  Position From;
+  Position To;
+
+  PieceType promotion = NONEPIECE;
+  bool operator==(const Move &other) const {
+    return From == other.From && To == other.To && promotion == other.promotion;
+  }
+};
+struct UndoMove {
+  Piece movedPiece;
+  Piece capturedPiece;
+
+  Position from;
+  Position to;
+
+  bool wasEnPassantCapture = false;
+  Position enPassantCapturedSquare;
+  Piece enPassantCapturedPiece;
+
+  bool oldTurn;
+  bool oldCanEnpassant;
+  Position oldEnPassant;
+
+  bool OldwhiteCastleKing;
+  bool OldwhiteCastleQueen;
+  bool OldblackCastleKing;
+  bool OldblackCastleQueen;
+
+  int oldHalfMoveClock;
+  int oldMoveClock;
+  uint64_t zobristKey;
+  GameState oldState;
+
+  // castling
+  bool wasCastle = false;
+  bool CastledSide = false; // 0 for queen side, 1 for king side
+};
+Piece createPiece(PieceType type, bool color);
+
+int PositionToIndex(Position i);
+UndoMove MakeMove(Move move, Game *g);
+void UnMakeMove(UndoMove undo, Game *g);
+
+Position FindKing(Game *b, bool white);
+#endif /* SRC_BOARD_H_ */