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gdle/Source/ChessDefines.h

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#ifndef CHESS_DEFINES_H
#define CHESS_DEFINES_H
namespace GDLE::Chess
{
#define CHESS_BOARD_SIZE 8
enum ChessColour
{
White,
Black
};
#define CHESS_COLOUR_COUNT 2
#define CHESS_COLOUR_INVALID -1
#define CHESS_WINNER_STALEMATE -1
#define CHESS_WINNER_END_GAME -2 // finishes match with no winners
enum ChessPieceType
{
Empty,
Pawn,
Rook,
Knight,
Bishop,
Queen,
King,
Count
};
enum ChessPieceRank
{
Rank8,
Rank7,
Rank6,
Rank5,
Rank4,
Rank3,
Rank2,
Rank1
};
enum ChessState
{
ChessStateWaitingForPlayers,
ChessStateInProgress,
ChessStateFinished
};
enum ChessMoveType
{
MoveTypeInvalid,
MoveTypePass,
MoveTypeResign,
MoveTypeStalemate,
MoveTypeGrid,
MoveTypeFromTo,
MoveTypeSelectedPiece
};
enum ChessMoveResult
{
NoMoveResult = 0x0000,
OKMoveToEmptySquare = 0x0001,
OKMoveToOccupiedSquare = 0x0002,
OKMoveEnPassant = OKMoveToEmptySquare | OKMoveToOccupiedSquare,
OKMoveMask = 0x03FF,
OKMoveCheck = 0x0400,
OKMoveCheckmate = 0x0800,
OKMovePromotion = 0x1000,
OKMoveToEmptySquareCheck = OKMoveCheck | OKMoveToEmptySquare,
OKMoveToOccupiedSquareCheck = OKMoveCheck | OKMoveToOccupiedSquare,
OKMoveEnPassantCheck = OKMoveCheck | OKMoveEnPassant,
OKMovePromotionCheck = OKMovePromotion | OKMoveCheck,
OKMoveToEmptySquareCheckmate = OKMoveCheckmate | OKMoveToEmptySquare,
OKMoveToOccupiedSquareCheckmate = OKMoveCheckmate | OKMoveToOccupiedSquare,
OKMoveEnPassantCheckmate = OKMoveCheckmate | OKMoveEnPassant,
OKMovePromotionCheckmate = OKMovePromotion | OKMoveCheckmate,
BadMoveInvalidCommand = -1,
BadMoveNotPlaying = -2,
BadMoveNotYourTurn = -3,
BadMoveDirection = -100,
BadMoveDistance = -101,
BadMoveNoPiece = -102,
BadMoveNotYours = -103,
BadMoveDestination = -104,
BadMoveWouldClobber = -105,
BadMoveSelfCheck = -106,
BadMoveWouldCollide = -107,
BadMoveCantCastleOutOfCheck = -108,
BadMoveCantCastleThroughCheck = -109,
BadMoveCantCastleAfterMoving = -110,
BadMoveInvalidBoardState = -111
};
enum ChessMoveFlag
{
ChessMoveFlagNormal = 0x01,
ChessMoveFlagCapture = 0x02,
ChessMoveFlagBigPawn = 0x04,
ChessMoveFlagEnPassantCapture = 0x08,
ChessMoveFlagPromotion = 0x10,
ChessMoveFlagKingSideCastle = 0x20,
ChessMoveFlagQueenSideCastle = 0x40
};
enum ChessAiState
{
ChessAiStateNone,
ChessAiStateWaitingToStart, // work has been requested, future object will be initialised and made valid next update
ChessAiStateWaitingForWorker, // future object is valid but has yet to start a worker thread
ChessAiStateInProgress, // worker is currently calculating ai move
ChessAiStateWaitingForFinish // worker has finished calculating ai move, future get will not block or block for a short time
};
enum ChessDelayedActionType
{
DelayedActionTypeStart,
DelayedActionTypeMove,
DelayedActionTypeMovePass,
DelayedActionTypeStalemate,
DelayedActionTypeQuit
};
static const int32_t PieceWorth[Count] =
{
0, 10, 50, 30, 30, 90, 900
};
typedef std::pair<int32_t /*x*/, int32_t /*y*/> Vector2;
class RookCastleFlag
{
public:
RookCastleFlag(Vector2 const vector, ChessMoveFlag const flag)
: m_vector(vector), m_flag(flag) { }
Vector2 const& GetVector() const { return m_vector; }
ChessMoveFlag GetFlag() const { return m_flag; }
private:
Vector2 m_vector;
ChessMoveFlag m_flag;
};
typedef std::multimap<ChessColour, RookCastleFlag> RookFlagStore;
static const RookFlagStore RookFlags =
{
{ White, { { 0, 0 }, ChessMoveFlagQueenSideCastle } },
{ White, { { 7, 0 }, ChessMoveFlagKingSideCastle } },
{ Black, { { 0, 7 }, ChessMoveFlagQueenSideCastle } },
{ Black, { { 7, 7 }, ChessMoveFlagKingSideCastle } }
};
// GplpwdLphWtgt
static const Vector2 PawnOffsets[CHESS_COLOUR_COUNT][4] =
{
// white
{ { 0, 1 }, { 0, 2 }, { 1, 1 }, { -1, 1 } },
// black
{ { 0, -1 }, { 0, -2 }, { -1, -1 }, { 1, -1 } }
};
// determines valid moves for a particular piece
static const std::multimap<ChessPieceType, Vector2> PieceOffsets =
{
{ Rook, { 0, 1 } }, { Rook, { 1, 0 } }, { Rook, { 0, -1 } }, { Rook, { -1, 0 } },
{ Knight, { 1, 2 } }, { Knight, { 2, 1 } }, { Knight, { 2, -1 } }, { Knight,{ 1, -2 } },
{ Knight, { -1, -2 } }, { Knight, { -2, -1 } }, { Knight, { -2, 1 } }, { Knight,{ -1, 2 } },
{ Bishop, { 1, 1 } }, { Bishop, { 1, -1 } }, { Bishop, { -1, -1 } }, { Bishop,{ -1, 1 } },
{ Queen, { 0, 1 } }, { Queen, { 1, 1 } }, { Queen, { 1, 0 } }, { Queen, { 1, -1 } },
{ Queen, { 0, -1 } }, { Queen, { -1, -1 } }, { Queen, { -1, 0 } }, { Queen, { -1, 1 } },
{ King, { 0, 1 } }, { King, { 1, 1 } }, { King, { 1, 0 } }, { King, { 1, -1 } },
{ King, { 0, -1 } }, { King, { -1, -1 } }, { King, { -1, 0 } }, { King, { -1, 1 } }
};
// piece-square tables from Chess programming wiki
static const float PieceSquareTable[Count][CHESS_COLOUR_COUNT][CHESS_BOARD_SIZE * CHESS_BOARD_SIZE] =
{
// empty
{
{ },
{ }
},
// pawn
{
// white
{
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
5.0f, 5.0f, 5.0f, 5.0f, 5.0f, 5.0f, 5.0f, 5.0f,
1.0f, 1.0f, 2.0f, 3.0f, 3.0f, 2.0f, 1.0f, 1.0f,
0.5f, 0.5f, 1.0f, 2.5f, 2.5f, 1.0f, 0.5f, 0.5f,
0.0f, 0.0f, 0.0f, 2.0f, 2.0f, 0.0f, 0.0f, 0.0f,
0.5f, -0.5f, -1.0f, 0.0f, 0.0f, -1.0f, -0.5f, 0.5f,
0.5f, 1.0f, 1.0f, -2.0f, -2.0f, 1.0f, 1.0f, 0.5f,
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f
},
// black
{
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
0.5f, 1.0f, 1.0f, -2.0f, -2.0f, 1.0f, 1.0f, 0.5f,
0.5f, -0.5f, -1.0f, 0.0f, 0.0f, -1.0f, -0.5f, 0.5f,
0.0f, 0.0f, 0.0f, 2.0f, 2.0f, 0.0f, 0.0f, 0.0f,
0.5f, 0.5f, 1.0f, 2.5f, 2.5f, 1.0f, 0.5f, 0.5f,
1.0f, 1.0f, 2.0f, 3.0f, 3.0f, 2.0f, 1.0f, 1.0f,
5.0f, 5.0f, 5.0f, 5.0f, 5.0f, 5.0f, 5.0f, 5.0f,
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f
}
},
// rook
{
// white
{
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
0.5f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0.5f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
0.0f, 0.0f, 0.0f, 0.5f, 0.5f, 0.0f, 0.0f, 0.0f
},
// black
{
0.0f, 0.0f, 0.0f, 0.5f, 0.5f, 0.0f, 0.0f, 0.0f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
-0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f,
0.5f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0.5f,
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f
}
},
// knight
{
// white
{
-5.0f, -4.0f, -3.0f, -3.0f, -3.0f, -3.0f, -4.0f, -5.0f,
-4.0f, -2.0f, 0.0f, 0.0f, 0.0f, 0.0f, -2.0f, -4.0f,
-3.0f, 0.0f, 1.0f, 1.5f, 1.5f, 1.0f, 0.0f, -3.0f,
-3.0f, 0.5f, 1.5f, 2.0f, 2.0f, 1.5f, 0.5f, -3.0f,
-3.0f, 0.0f, 1.5f, 2.0f, 2.0f, 1.5f, 0.0f, -3.0f,
-3.0f, 0.5f, 1.0f, 1.5f, 1.5f, 1.0f, 0.5f, -3.0f,
-4.0f, -2.0f, 0.0f, 0.5f, 0.5f, 0.0f, -2.0f, -4.0f,
-5.0f, -4.0f, -3.0f, -3.0f, -3.0f, -3.0f, -4.0f, -5.0f
},
// black
{ }
},
// bishop
{
// white
{
-2.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -2.0f,
-1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -1.0f,
-1.0f, 0.0f, 0.5f, 1.0f, 1.0f, 0.5f, 0.0f, -1.0f,
-1.0f, 0.5f, 0.5f, 1.0f, 1.0f, 0.5f, 0.5f, -1.0f,
-1.0f, 0.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, -1.0f,
-1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f,
-1.0f, 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.5f, -1.0f,
-2.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -2.0f
},
// black
{
-2.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -2.0f,
-1.0f, 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.5f, -1.0f,
-1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f,
-1.0f, 0.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, -1.0f,
-1.0f, 0.5f, 0.5f, 1.0f, 1.0f, 0.5f, 0.5f, -1.0f,
-1.0f, 0.0f, 0.5f, 1.0f, 1.0f, 0.5f, 0.0f, -1.0f,
-1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -1.0f,
-2.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -2.0f
}
},
// queen
{
// white
{
-2.0f, -1.0f, -1.0f, -0.5f, -0.5f, -1.0f, -1.0f, -2.0f,
-1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -1.0f,
-1.0f, 0.0f, 0.5f, 0.5f, 0.5f, 0.5f, 0.0f, -1.0f,
-0.5f, 0.0f, 0.5f, 0.5f, 0.5f, 0.5f, 0.0f, -0.5f,
0.0f, 0.0f, 0.5f, 0.5f, 0.5f, 0.5f, 0.0f, -0.5f,
-1.0f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.0f, -1.0f,
-1.0f, 0.0f, 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, -1.0f,
-2.0f, -1.0f, -1.0f, -0.5f, -0.5f, -1.0f, -1.0f, -2.0f
},
// black
{ }
},
// king
{
// white
{
-3.0f, -4.0f, -4.0f, -5.0f, -5.0f, -4.0f, -4.0f, -3.0f,
-3.0f, -4.0f, -4.0f, -5.0f, -5.0f, -4.0f, -4.0f, -3.0f,
-3.0f, -4.0f, -4.0f, -5.0f, -5.0f, -4.0f, -4.0f, -3.0f,
-3.0f, -4.0f, -4.0f, -5.0f, -5.0f, -4.0f, -4.0f, -3.0f,
-2.0f, -3.0f, -3.0f, -4.0f, -4.0f, -3.0f, -3.0f, -2.0f,
-1.0f, -2.0f, -2.0f, -2.0f, -2.0f, -2.0f, -2.0f, -1.0f,
2.0f, 2.0f, 0.0f, 0.0f, 0.0f, 0.0f, 2.0f, 2.0f,
2.0f, 3.0f, 1.0f, 0.0f, 0.0f, 1.0f, 3.0f, 2.0f
},
// black
{
2.0f, 3.0f, 1.0f, 0.0f, 0.0f, 1.0f, 3.0f, 2.0f,
2.0f, 2.0f, 0.0f, 0.0f, 0.0f, 0.0f, 2.0f, 2.0f,
-1.0f, -2.0f, -2.0f, -2.0f, -2.0f, -2.0f, -2.0f, -1.0f,
-2.0f, -3.0f, -3.0f, -4.0f, -4.0f, -3.0f, -3.0f, -2.0f,
-3.0f, -4.0f, -4.0f, -5.0f, -5.0f, -4.0f, -4.0f, -3.0f,
-3.0f, -4.0f, -4.0f, -5.0f, -5.0f, -4.0f, -4.0f, -3.0f,
-3.0f, -4.0f, -4.0f, -5.0f, -5.0f, -4.0f, -4.0f, -3.0f,
-3.0f, -4.0f, -4.0f, -5.0f, -5.0f, -4.0f, -4.0f, -3.0f
}
}
};
#define DEBUG_SIMPLE_AI
}
#endif // CHESS_DEFINES_H
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