FEEDER_VOLUME
if (c->feederflags & (1 << FEEDER_VOLUME)) {
if (!(ch->feederflags & (1 << FEEDER_VOLUME))) {
fc = feeder_getclass(FEEDER_VOLUME);
c->feederflags |= 1 << FEEDER_VOLUME;
FEEDER_DECLARE(feeder_volume, FEEDER_VOLUME);
if (f == NULL || f->class->type != FEEDER_VOLUME || f->data == NULL ||
!(c->feederflags & (1 << FEEDER_VOLUME))) {
(c->feederflags & (1 << FEEDER_VOLUME)))