public void moveNorth() throws InterruptedException{
		if (isDoor[0] && !isLocked[0]){
			currentY--;
			currentRoom = rooms[currentY][currentX];
			currentRoom.playerVisits();
			setAdjacentRooms();
			Game.printMessage("You walk through the northern door\n");
		} else if (!isDoor[0])
			Game.printMessage("There is no door in that direction\n");
		else if (isLocked[0])
			Game.printMessage("You try to continue, but the door is locked\n");
	}