Cheat Engine

[hitmetwice]

It's about injection. How do I find the address for an event like shoot_my_gun.
(and how can I call it?)

[Mohsen]

If you don't know ASM forget it; otherwise I shed some light for you to start with.

Think about what you want to find.
We know that every time we shoot the amoo is decreased, so for a first start find address of amoo; then set break point on any write to this address.

Go through ASM code and see if you can find it.

[TsTg]

Yes you can find where the ammo value decreases easily, but finding where the game Starts performing the 'Shoot' code (Like animation, recoil, ammo left, reload animation,....etc) is a bit complicated.

However, you can start with the handler of keyboard/mouse presses in the game (Use ollydbg for that), see what happens when the shoot key is pressed,...then start tracing code from there.

[Dark Byte]

If you can get dbvm and ultimap to work (hardware and os dependant) you could use that
Shoot your gun and tell it that the code you are looking has been executed
Walk around and jump and tell it the code has not been executed
Repeat a few times and you'll be left with code paths taken when you shoot your gun
You can then filter it to show only the branches that got called by a "call" to show only the functions

Tip: Run the game on a max of 50% of your cpu cores and let the rest deal with handling the eventlog (so the game won't run too slow)
Do that by setting the cpu affinity in the taskmanager

Tip2:A lot of people have more success launching dbvm using the 32bit ce version(after dbvm is loaded you can launch the 64bit ce if you like)

[Mohsen]

Wooaahh
Never tried dbvm, thank you Dark. It's very useful.