/**
* Reads a sim map from location set to the settings, mirrors the map and moves its upper left
* corner to origo.
*
* @return A new SimMap based on the settings
*/
private SimMap readMap() {
SimMap simMap;
Settings settings = new Settings(MAP_BASE_MOVEMENT_NS);
WKTMapReader r = new WKTMapReader(true);
if (cachedMap == null) {
cachedMapFiles = new ArrayList<String>(); // no cache present
} else { // something in cache
// check out if previously asked map was asked again
SimMap cached = checkCache(settings);
if (cached != null) {
nrofMapFilesRead = cachedMapFiles.size();
return cached; // we had right map cached -> return it
} else { // no hit -> reset cache
cachedMapFiles = new ArrayList<String>();
cachedMap = null;
}
}
try {
int nrofMapFiles = settings.getInt(NROF_FILES_S);
for (int i = 1; i <= nrofMapFiles; i++) {
String pathFile = settings.getSetting(FILE_S + i);
cachedMapFiles.add(pathFile);
r.addPaths(new File(pathFile), i);
}
nrofMapFilesRead = nrofMapFiles;
} catch (IOException e) {
throw new SimError(e.toString(), e);
}
simMap = r.getMap();
checkMapConnectedness(simMap.getNodes());
// mirrors the map (y' = -y) and moves its upper left corner to origo
simMap.mirror();
Coord offset = simMap.getMinBound().clone();
simMap.translate(-offset.getX(), -offset.getY());
checkCoordValidity(simMap.getNodes());
cachedMap = simMap;
return simMap;
}