#! perl

# this module implements slag ex(tm):
# when it is applied by a player the cauldron below it will
# be cleaned (all items in it will be removed)

cf::object->attach (
   type     => cf::POTION,
   subtype  => 11, # just a random number
   on_apply => sub {
      my ($self, $who) = @_;

      my ($caul) =
         grep { $_->flag (cf::FLAG_IS_CAULDRON) }
            $who->map->at ($who->x, $who->y);

      if ($caul) {
         $_->destroy (1) for @$caul;
         $self->handle_apply_yield;
         $self->decrease_ob_nr (1);
         $who->message ("You cleaned the " . $caul->name, cf::NDI_UNIQUE);

      } else {
         $who->message ("Couldn't find cauldron to clean on the ground.", cf::NDI_UNIQUE);
      }

      cf::override 1;
   },
);