Cheat Engine

[SavageXii]

I'm trying to find the value for ammo in a game.
Scanning for the exact value finds 30/30 of the clip but its just the display value it doesn't freeze the ammo.

I've scanned all type, unknown initial value, scanned decrease increase with no results.

I've scanned all types unknown value, changed, unchanged resulting in about 800 results that is the lowest I can get it.

Any suggestions? I tried a large sample "find what access/writes address, when I fired nothing appeared on either list so I'm REALLY confused now.

Also the whole point of trying to find the ammo is for the "hotspot" into changing an items ID and other stats on it.

[Gniarf]

Try unknown initial (type=all), shoot once, filter with decreased by 1, reload gun, filter with unchanged. Rinse and repeat.
Once, and just once, do a simple "decreased" instead of a "decreased by", this will remove the huge float/double values that the decreased by 1 erroneously doesn't remove.

If you have 800 results and can't filter it down, add them all, freeze half, and see if ammo is frozen.
-If ammo is locked, remove the 400 addresses that weren't frozen, and unfreeze half of the remaining ones.
-If ammo is NOT locked, remove the 400 addresses that were frozen, and freeze half of the remaining ones.
Rinse and repeat.

[SavageXii]

[Gniarf]

[SavageXii]

[Gniarf]

Ok found the thread where those tables come from, it's here: http://forum.cheatengine.org/viewtopic.php?t=567403

-Jbeaty found some item codes and said Full-SMG=4141, Full-Sniper=4145, which have to be put in a 4 byte variable in his table.
-masechase figured out that item ID is a 2 byte value immediately followed by condition (also over 2 bytes).
-4145 split over two 2 byte values becomes ID=4145, condition=0.
Thus condition=0 means full clip. So if you want to hack ammo in clip, search for a 2 byte value that starts at 0 and increases when you shoot, and goes back to 0 when you reload.
It is not sure condition increases by 1 on each shot. It may be 100/ClipSize or 255/ClipSize, or even another weird thing.

Also avoid using a multi-projectile weapon (like a shotgun) when hacking ammo. Some games would store ammo as 8(shells)*10(pellets per shot)=80 for a full clip.

For unlimited spare ammo, you're looking for a 4 byte variable, probably exactly the number reported in your inventory over the ammo box (as long as it doesn't take the amount of bullets in clip into account). That variable only changes when you reload.

Thinking again about it, you might be able to take a shortcut for ammo-in-clip: if you use the item IDs that ApocalypticGamer posted, and if you have a fully loaded pistol, you can scan for 4136, type=4 byte, fast scan=off, then filter with increased value when you shoot, and exact value=4136 after reloading.
Just don't forget to break the result into two 2 byte variables when you successfully froze ammo.

[SavageXii]

[Gniarf]

[SavageXii]

[Gniarf]

[SavageXii]

[Nemexia55]

this is one of the best posts on this site!
the questions are good and well-answered!
i learnt much here!

i wish others respond like this as well

[++METHOS]

Gniarf is still lurking about.

[pellik]

Damn, I was going to post about how LUA has really come a long way within CE and shouldn't be categorized into UI stuff, then I realized how old this thread is and how it was completely true at the time.