function sonar_event()
{
if (event_type == EVENT_SONAR)
{
ent_playsound(my,whamm,50);
ent_remove(me); // disappear when hit
}
}
action exploding_barrel_sonar()
{
my.ENABLE_SONAR = ON;
my.emask |= ENABLE_SONAR;
my.event = sonar_event;
}