IsUnitValid(id)

[enric]

returns 0 if a unit is dead/hidden/inactive (loaded, etc). 1 otherwise

What exactly means "hidden" in this case?, and the "etc" can be more explicit.

[pipfromslitherine]

I think that basically is talking about if the unit has been removed from the map.

Cheers

Pip

[enric]

It's because I've an odd bug and thought it could come from this functions.
I loop on all units of a side
if (IsUnitValid(id)==0) // is loaded maybe?
{
transport = GetLoadedOn(id);
if (transport != -1)
{
distance = GetDistanceBetween(me, transport);
}

Probably I'm confused and the issue is in another place.