/**
* Computes a path from a location to the nearest source. Contains both start and end points.
*
* @param loc The location.
* @return The path as a LocSet.
*/
public LocSet getPath(MapLocation loc) {
LocSet path = new LocSet();
path.insert(loc);
while (!sources.contains(loc)) {
loc = loc.subtract(from[loc.x][loc.y]);
path.insert(loc);
}
return path;
}
