@SuppressWarnings("unchecked")
@Override
public void map(LongWritable positionToMap, LongWritable record, Context context) {
try {
S pos = game.hashToState(positionToMap.get());
game.longToRecord(pos, record.get(), rec);
rec.previousPosition();
int numParents = 0;
numParents = ((Undoable<S>) game).possibleParents(pos, parentStates);
for (int i = 0; i < numParents; i++) {
long parentHash = game.stateToHash(parentStates[i]);
RangeFile parentFile = rangeFiles.getFile(parentHash);
srp.state = parentHash;
srp.record = game.recordToLong(parentStates[i], rec);
context.write(parentFile, new StateRecordPair(srp.state, srp.record));
}
} catch (IOException e) {
throw new Error(e);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
