public boolean push(Direction dir) throws IllegalMoveException{

		Position pos = owner.getPosition(this);

		if(dir == Direction.EAST){

			// Get the object in the tile to the right
			Position rightPos = pos.moveDirection(Direction.EAST);
			IBDObject rightObj = owner.get(rightPos);

			// Move one step to the right if tile is empty
			if (rightObj instanceof BDEmpty && !(rightObj instanceof BDSand)) {
				prepareMoveTo(Direction.EAST);

				audio = new Audio("rockPush");
				audio.playSound(); // plays sound
				super.step();
				return true;
			}
		}

		if(dir == Direction.WEST){

			// Get the object in the tile to the left
			Position leftPos = pos.moveDirection(Direction.WEST);
			IBDObject leftObj = owner.get(leftPos);

			// Move one step to the left if tile is empty
			if (leftObj instanceof BDEmpty && !(leftObj instanceof BDSand)) {
				prepareMoveTo(Direction.WEST);
				audio = new Audio("rockPush");
				audio.playSound(); // plays sound
				super.step();
				return true;
			}

		}
		return false;
	}