Actor BlowupActor
{
  //whatever other stuff up here
  Painchance 255
  States:
  {
  Spawn:
    TNT1 A 0
    TNT1 A 0
    TNT1 A 0 ACS_ExecuteWithResult(1)
    Goto Spawn2
  Spawn2:
    TNT1 A 1 //or whatever
    Loop
  Pain:
    TNT1 A 0
    TNT1 A 0
    TNT1 A 0 ACS_ExecuteWithResult(1)
    Goto Spawn2
  BlowUpWall:
  //and whatever else here
  }
}





  int BlowupActorHealth;  //this needs to be declared outside of any script

script 1 (void)
{
  int NewHealth = GetActorProperty(0,APROP_Health);
  if ((BlowupActorHealth - NewHealth) >= #)
  {
    SetActorState(0,"BlowUpWall");
    Terminate;
  }
  else
  {
    BlowupActorHealth = NewHealth;
    Terminate;
  }
}