Trying to make a reusable inventory item

[Empyre]

I am trying to make an inventory item that can be used an unlimited number of times, but with a cool-down time. Can this be done with DECORATE, and if so, how? I was unable to find the answer in Zoom's wiki.

[madcat]

Yes, that is possible. Make the item give the player a powerup that does nothing, but has a certain duration. And make the item not do anything if the player has the powerup still active (a_jumpifinventory)

[Empyre]

Thanks, that is a simple and elegant solution to the cool-down, but how do I make the item not disappear from the inventory when used? The answer is probably so obvious that you assumed I already know it, but I don't.

[Catastrophe]

Add a "fail", which will stop the inventory item from being consumed.

[madcat]

or just use a_giveinventory("theitemitself") in the item

[Empyre]

I thought I had it figured out, but Zandronum fails, giving the following error message:

Code: Select all

Execution could not continue.

Script error, "opweapons2_b1.pk3:pickups.dec" line 37:
SC_GetNumber: Bad numeric constant "}".

Line 37 is the very last line in this code excerpt.

Code: Select all

ACTOR PowerGhostLauncherTimer : PowerTargeter
{
  Powerup.Duration 20
  -INVENTORY.HUBPOWER
  States
  {
  Targeter:
    Stop
  }
}

ACTOR GhostLauncherTimer : PowerupGiver
{
  Inventory.MaxAmount 0
  Powerup.Type "GhostLauncherTimer"
  +Inventory.AutoActivate
}

ACTOR GhostLauncher : CustomInventory
{
  Inventory.MaxAmount 1
  +Inventory.INVBAR
  Translation "Ice"
  RenderStyle "Add"
  Alpha 0.65
  Inventory.Icon "SKULA1"
  States
  {
  Use:
    TNT1 A 0 A_JumpIfInventory ("GhostLauncherTimer", 1, "NotYet")
	TNT1 A 0 A_GiveInventory ("GhostLauncherTimer", 1)
	TNT1 A 0 A_FireCustomMissile("OPGhost1",0,1,0,0,0,0)
// Pass-through
  NotYet:
    fail
  }
}

This is bizarre. Why is it expecting a number there?

[madcat]

I see what the problem is

Your last state should look like this:

NotYet:
TNT1 A 4
fail

[Empyre]

Yeah, somebody in the DoomWorld forums pointed that out too, and when I added a frame there, it works. Thanks again!