ZDoom

Pink: That wouldn't work, because of the way UpgradeAccuracy and UpgradeStamina are coded, they don't carry in the inventory like any other item, so CheckInventory and any other inventory check code-pointers.

Pink: That's [b]exactly[/b] what he wants to avoid doing. I think he doesn't want to put up with any ACS stuff at all.

[quote="wildweasel"]Well shit. Looks like it's time for cheap hacks and brute force (or just canceling my project!)[/quote]

Bah, it wouldn't be a proper Doom mod without any cheap hacks anyway. :P

#library "LUMPNAME"
#include "zcommon.acs"

Script 256 (void)
{
    SetResultValue (CheckInventory ("InventoryItem"));
}

Spawn:
    TNT1 AA 0 A_SpawnItemEx ("SomeObject", 0, 0, 32.0, 20.0 + (2.0 * ACS_ExecuteWithResult (256)), 0, 0, 0)

for reference, you can do it like this:

Make an [wiki=Libraries]ACS Library[/wiki] and make a script that looks like this:

[code]#library "LUMPNAME"
#include "zcommon.acs"

Script 256 (void)
{
SetResultValue (CheckInventory ("InventoryItem"));
}[/code]
Make sure it's loaded using [wiki]LOADACS[/wiki] by listing it on a line in the lump.

Then in your decorate code, use [wiki]ACS_ExecuteWithResult[/wiki] to call the script you made as part of the expression:

[code]Spawn:
TNT1 AA 0 A_SpawnItemEx ("SomeObject", 0, 0, 32.0, 20.0 + (2.0 * ACS_ExecuteWithResult (256)), 0, 0, 0)[/code]
Hopefully it should be simple enough.

Well shit. Looks like it's time for cheap hacks and brute force (or just canceling my project!)

This one's a clear WFDS proposition.

This is not possible as a variable. The best you can hope for is a function (like sin() and cos()).

Except that user vars don't work with weapons. And even if they did, that doesn't solve the fundamental problem of being unable to acquire inventory counts without a long series of conditional jumps.

The one thing I can think of would be a new DECORATE function. But I don't know how functions are handled in DECORATE to know what that would entail. (Being able to directly access inventory counts, though, would be a generally useful feature itself, though.)

Would it be possible with a user variable?

What I want to do is make Strife's assault gun produce recoil when fired using A_SetPitch, but have the recoil amount be proportional to the value of Strife's UpgradeAccuracy inventory item. There doesn't seem to be a way to do this outside of either mass brute-forcing using A_JumpIfInventory, or an ACS script which I would much rather avoid.

Could it be made so that I can use the value of an inventory item as a variable for a Decorate expression?