public CorridorSet(String savefile, int savesize) {
		this.corridors = new Corridor[savesize];
		
		if (savefile.length() == 0) {
			return;
		}
		String[] corridorList = savefile.split("\n");
		for (int i=0; i<corridorList.length; i++) { //last empty line not counted
			if (corridorList[i].split(" ").length == 4) {
				makeCorridor(corridorList[i]);
			}
			else {
				makeOuterCorridor(corridorList[i]);
			}
		}
	}