Trying to add an power-up use Delay in DECORATE

CustomInventory can be a tricky thing.

Such item only lasts until picked up, and ignores any frame durations in the pickup/use state. You can't give timers to CustomInventory.

However you can create a dummy Powerup class, which will serve as a timer, and the CustomInventory item would check presence of that "powerup" to prevent being picked up. 

Have you tried not giving it the ALWAYSPICKUP tag and playing with Inventory.MaxAmount?

14 minutes ago, Kan3 said:

Have you tried not giving it the ALWAYSPICKUP tag and playing with Inventory.MaxAmount?

actor TestItem : CustomInventory 10492
{
	+COUNTITEM
	Inventory.Amount 1
	Inventory.MaxAmount 1
	
	States
	{
	Pickup:
		ABCD B 10 A_FireMissile
		stop	
		
	Spawn:
		SOUL ABCDCB 6 Bright
		Loop
	}
}

Here's what I have it set at right now. I've been tweaking small things over and over and the results are the same. Every time I pick up or am given the TestItem it picks it up and fires my test missile. I must be overlooking something. 

Maybe it's because the action of the TestItem only lasts as long as touching the item and the missile firing? Maybe because it's not active like a Berzerk it doesn't count it as being in my inventory after us? Not sure if that's how that works, just a guess.

Update: The first time I use the item it picks it up and fires a missile, the second time I pick it up it doesn't collect the item, therefore firing a zillion missiles. So, after the inventory is maxed out it still uses the item without collecting it. Not sure exactly what to do with that information but it's a starting point at least.

2 hours ago, HolyHominid said:

Update: The first time I use the item it picks it up and fires a missile, the second time I pick it up it doesn't collect the item, therefore firing a zillion missiles. So, after the inventory is maxed out it still uses the item without collecting it. Not sure exactly what to do with that information but it's a starting point at least.

Bizzarre.

I could suggest you to try giving the item a duration with Powerup.Duration (that needs to be set in a different class), so that you'll shoot when picked up, but then you (should) have to wait until it expire.