UDB help

i'm making a doom wad that's like cod zombies where you fight waves of monsters one by one. can someone help me with spawning in monsters after all monsters are dead

Easy and boring to explain at same time!
Post a litle Map and tell what you want to do. I can explain with Maps!
Or, you can wait for Enjay...

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Code:

//This script wait all actor with Tag 171 die

Script "Spawning" OPEN
{
While(ThingCount(0,171) > 1) // Or While(ThingCount(0,171))
 {
 Delay(1);
 }
Delay(35);
//Do Stuffs Here!
}


There are not many pwads designed for waves of monsters.
However, one of the best is Stronghold
The intro is a bit lenghty but informative

To learn about the wave mechanism take the pwad apart with Slade3.