actor CanPickUpItems : CustomInventory
{
   states
   {
   pickup:
      TNT1 A 0 A_ChangeFlag("pickup",1)
      fail
   }
}
actor CantPickUpItems : CustomInventory
{
   states
   {
   pickup:
      TNT1 A 0 A_ChangeFlag("pickup",0)
      fail
   }
}