update

Piece.hpp

@@ -24,19 +24,34 @@ class Piece {
 
 public:
 
-    constexpr static const PieceType PromotionTypes[4] = {PieceType::Knight, PieceType::Bishop, PieceType::Rook, PieceType::Queen};
+    constexpr static const PieceType PromotionTypes[4] = {PieceType::Knight, PieceType::Bishop, PieceType::Rook,
+                                                          PieceType::Queen};
+    constexpr static const unsigned PieceValue[6] = {100, 350, 350, 525, 1000, 10000};
+    constexpr static const unsigned PromotionScore[6] = {0, 26, 36, 46, 56, 0};
+
+    constexpr static const unsigned MVV_LVA[6][6] = {
+            {15, 14, 13, 12, 11, 10}, // Pawn
+            {25, 24, 23, 22, 21, 20}, // Knight
+            {35, 34, 33, 32, 31, 30}, // Bishop
+            {45, 44, 43, 42, 41, 40}, // Rook
+            {55, 54, 53, 52, 51, 50}, // Queen
+            {65, 64, 63, 62, 61, 60}, // King
+    };
 
     using Optional = std::optional<Piece>;
 
     Piece(PieceColor color, PieceType type);
 
     static Optional fromSymbol(char symbol);
+
     static char toSymbol(PieceType type);
 
     static std::optional<PieceType> pieceTypeFromSymbol(char symbol);
 
     PieceColor color() const;
+
     PieceType type() const;
+
     char toSymbol() const;
 
 private:
@@ -45,6 +60,7 @@ private:
 };
 
 bool operator==(const Piece &lhs, const Piece &rhs);
+
 std::ostream &operator<<(std::ostream &os, const Piece &piece);
 
 // Invert a color (White becomes Black and vice versa)