public void addCollection(MatchableCollection mc) {
boolean notm = false;
collections.add(mc);
if (numRac > 0 && numUpl > 0) mc.setMatchable();
else notm = true;
if (mc.isRacunTip()) ++numRac;
else ++numUpl;
if (notm && numRac > 0 && numUpl > 0) setMatchable();
}
