private Map<MapleCharacter, OnePartyAttacker> resolveAttackers() {
            final Map<MapleCharacter, OnePartyAttacker> ret = new HashMap<>(attackers.size());
            for (final Entry<Integer, OnePartyAttacker> aentry : attackers.entrySet()) {
                final MapleCharacter chr = map.getCharacterById(aentry.getKey());
                if (chr != null) {
                    ret.put(chr, aentry.getValue());
                }
            }
            return ret;
        }