private Operation getOperation(String message) {
		if ("resign".equalsIgnoreCase(message)) {
			return Operation.RESIGN;
		} else if ("draw".equalsIgnoreCase(message)) {
			return Operation.DRAW;
		} else if ("cancel".equalsIgnoreCase(message)) {
			return Operation.DRAW_CANCEL;
		}
		return Operation.MOVE;
	}