Examples with XTERNAL nars.time.Tense.XTERNAL used on opensource projects

Example 1 with XTERNAL

use of nars.time.Tense.XTERNAL in project narchy by automenta.

the class DynamicTruthBeliefTable method matchDT.

/**
 * returns an appropriate dt for the root term
 * of beliefs held in the table.  returns 0 if no other value can
 * be computed.
 */
protected int matchDT(long start, long end, boolean commutive, NAR nar) {
    int s = size();
    if (s == 0)
        return 0;
    int dur = nar.dur();
    IntFloatHashMap dtEvi = new IntFloatHashMap(s);
    forEachTask(t -> {
        int tdt = t.dt();
        if (tdt != DTERNAL) {
            if (tdt == XTERNAL)
                throw new RuntimeException("XTERNAL should not be present in " + t);
            if ((t.term().subs() > 2) == commutive)
                // maybe evi
                dtEvi.addToValue(tdt, t.evi(start, end, dur));
        }
    });
    int n = dtEvi.size();
    if (n == 0) {
        return 0;
    } else {
        MutableList<IntFloatPair> ll = dtEvi.keyValuesView().toList();
        int selected = n != 1 ? Roulette.decideRoulette(ll.size(), (i) -> ll.get(i).getTwo(), nar.random()) : 0;
        return ll.get(selected).getOne();
    }
}