class Cmd:
    CMD_SRV_VIEW_GAME = 0
    CMD_SRV_ENTER_ROOM = 1

class CmdGame:
    CMD_GAME_MAKE_MOVE = 0
    CMD_GAME_SEND_MESSAGE = 1
    CMD_GAME_RECV_MESSAGE = 2

class Piece:
    PIECE_EMPTY = 0
    PIECE_PAWN = 1
    PIECE_KNIGHT = 2
    PIECE_BISHOP = 3
    PIECE_ROOK = 4
    PIECE_QUEEN = 5
    PIECE_KING = 6

class Color:
    COLOR_BLACK = 0x00
    COLOR_WHITE = 0x10

class MovePayload:
    MOVE_NONE = 0
    MOVE_PAWN_PROM = 1
    MOVE_KING_KINGSIDE_CASTLE = 2
    MOVE_KING_QUEENSIDE_CASTLE = 3

    MOVE_SERVICE_VALUES = 4
    MOVE_VERIFY_CHECK = 5
    MOVE_VERIFY_LEGAL_MOVES = 6

class Status:
    STATUS_SUCCESS = 0
    STATUS_GAME_CHECKMATE = 1
    STATUS_GAME_DRAW = 2

    STATUS_FAILURE = -1
    STATUS_SRV_AUTH_FAILED = -2
    STATUS_SRV_ROOM_NOT_FOUND = -3
    STATUS_SRV_ROOM_CLOSED = -4
    STATUS_GAME_INVALID_MOVE = -5