<stdin>

actor Heh: CustomInventory
{
    States
    {
      Pickup:
        TNT1 A 0 A_JumpIfInventory("HerpCounter", 5, 1)
        goto PickupFail  // less than 5 HerpCounters? do nothing
        TNT1 A 0 A_GiveInventory("HerpGun")
        stop

      PickupFail:
        TNT1 A 0
        fail
    }
}