Classes:Backpack

From ZDoom Wiki

Backpack
Actor type	Ammo	Game
DoomEd Number	8	Class Name	Backpack
Spawn ID	144	Identifier	T_BACKPACK

Classes: Inventory→BackpackItem→Backpack

The backpack contains a sample of each ammunition type (the quantity of which depends on the ammunition, not on the backpack) and extends the carrying capacity of each ammunition type (again, this is a factor of the ammunition).

DECORATE definition

ACTOR Backpack : BackpackItem 8
{
  Game Doom
  SpawnID 144
  Height 26
  Inventory.PickupMessage "$GOTBACKPACK" // "Picked up a backpack full of ammo!"
  States
  {
  Spawn:
    BPAK A -1
    Stop
  }
}