checking monsters are dead in ACS

[Chainsaw]

If I have two monsters in a room (imps lets say) how can I check that both are dead before spawning a shotgun for example.

If both the imps had TID 2 and a mapspot had TID 1, would be something like:

if(ThingCount(T_IMP,2) == 0)
{
Thing_spawn(1, T_SHOTGUN, 0,0);
}

[Vader]

Try this:

While(ThingCount(0, 1))
{
delay(1);
}
Thing_spawn(2, T_SHOTGUN, 0,0);

This will check every 1 tic, if there are things with tag 1 in play.
If not, it will spawn the shotgun at a mapspot with tag 2!

[Bastet Furry]

I do it that way:

I have 4 barons in some sort of small arena.
All 4 get a thing tag of 2 (for the second argument in ThingCount).
Then just cnp my code and it should work. It works here so....

script 4 (void)
{
	if (ThingCount(T_BARON, 2) == 0)
	{
	  Door_Open(8,30);
	  SetMusic("MUSMAP02",0,0);
	}
}

Just insert your Thing_spawn(2, T_SHOTGUN, 0,0); inside and delete my stuff.
Dont forget to change T_BARON to T_IMP.
This way you only check for Imps with id 2 and nothing else, so you can reuse id 2 for other monster groups of the same type.
If you want to check for a group of different monsters just leave the T_* and insert a 0 (zero). NULL should do the same job and is better to read.
And one last thing, alway comment ;)
Or you need to backtrack what a function should do......