Initial

1 files changed, 67 insertions, 0 deletions

diff --git a/board.h b/board.h
new file mode 100644
index 0000000..a714de0
--- /dev/null
+++ b/board.h
@@ -0,0 +1,67 @@
+#pragma once
+
+#include <iostream>
+#include <vector>
+#include "move.h"
+
+using namespace std;
+
+
+const int WHITE = 0;
+const int BLACK = 1;
+
+const int EMPTY = 0, PAWN = 1, ROOK = 2, KNIGHT = 3, BISHOP = 4, KING = 5, QUEEN = 6;
+
+// WHITE WHITE WHITE  y = 0
+// ...
+// ...
+// BLACK BLACK BLACK  y = 7
+
+
+#define IDX(x_, y_) (8 * (y_) + (x_))
+
+
+class Board {
+	int bd[64];  // 0 = empty, >0 = white, <0 = black
+
+public:
+	int pieceScore[2];  // captured points by player
+	int lastTarget;  // destination of last move
+	int onTurn;  // colour of player to move
+	bool kingMoved[2], rookLmoved[2], rookRmoved[2];
+
+	Board();
+
+	template <typename F>  // void(Board&)
+	inline Board newWith(const F &func) const {
+		Board B(*this);
+		func(B);
+		return B;
+	}
+
+	inline int& at(int x, int y) {return at(IDX(x, y));}
+	inline int& at(int idx) {return bd[idx];}
+	inline int at(int x, int y) const {return at(IDX(x, y));}
+	inline int at(int idx) const {return bd[idx];}
+
+	int locate(int stone) const;
+
+	static inline int colour(int stone) {return stone > 0 ? WHITE : BLACK;}
+
+	static inline int worth(int stone) {
+		static const int w[7] = {0, 1, 5, 3, 3, 100000000, 9};
+		if (stone < -6 || stone > 6) __asm("int3\n\t");
+		return w[abs(stone)];
+	}
+
+	vector<Board> subsequents() const;
+
+	void apply(const Move &mv);  // does not perform checking
+
+	bool isValid(const Move &mv);
+
+	friend bool operator==(const Board &B1, const Board &B2);
+};
+
+ostream& operator<<(ostream &os, const Board &B);
+bool operator==(const Board &B1, const Board &B2);