ThingCountName
From ZDoom Wiki
int ThingCountName (str classname, int tid)
Usage
ThingCountName counts all things specified on the map. Monsters are specified by their names (see Classes), or by name and tid.
ThingCountName will not count dead monsters, even though their things still exist and can be used, for instance, by SpawnSpot.
Example
For example let's say you have a map with 10 enemies:
Imp - tid 5
Imp - tid 5
Imp - tid 0
Baron - tid 5
Baron - tid 5
Baron - tid 4
Baron - tid 0
Demon - tid 5
Demon - tid 4
Demon - tid 0
Here are some example values:
ThingCountName("DoomImp", 0) = 3
ThingCountName("BaronOfHell", 0) = 4
ThingCountName("Demon", 0) = 3
ThingCountName("DoomImp", 5) = 2
ThingCountName("Demon", 4) = 1
ThingCountName("DoomImp", 4) = 0
Notice that specifying a tid of 0 means that ThingCountName will just ignore the tid and not count things with a tid of 0.
