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gir489
Grandmaster Cheater
![]() Reputation: 14
Joined: 03 Jan 2012
Posts: 835
Location: Maryland, United States
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 Posted: Wed Jun 12, 2013 6:41 pm Post subject: Making your trainer the boopinest |
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Since I hate Lua with a passion, I don't like to write stuff in it, I try to find a C++ or ASM solution to my problems. One of the major problems I was having with my Fallout trainer was that it was playing the beep() function on both activate and deactivate. While this is fine in a perfect world, sometimes the trainer would fail to activate and I'd be half an hour in to a play through and have to stat shooting someone, and notice the ammo isn't going up when I shoot. So, naturally the first thing I did was looked at the auto generated Lua, which I dreaded the day I would have to.
I noticed that if a global var was set, it would call beep(). I looked at the source on the SVN, and it was just a wrapper function for SysUtils.Beep() which is a C++ helper class. I thought it was just doing something fancy in Lua. How silly of me, of course Lua can't do anything without C++'s help.
So, I didn't want to write a C++ module just to make some noise, especially since I wanted to just make a regular Windows noise. So, I looked up some WinAPI funcs that I could try to call with some ASM, and found a function called PlaySoundA. Takes a string, some HMODULE that is never passed, and a 32-bit flag var.'
So with some fancy Auto Assembling, I manged to write this script:
| Code: | globalalloc(callplaysounda,64) //Create the thread space.
createthread(callplaysounda) //Inject the thread in to the queue.
alloc(wavelocation,64) //Create a location for our string in memory.
wavelocation: //Assign the bytes to the string address.
db 4D 65 64 69 61 5C 57 69 6E 64 6F 77 73 20 45 78 63 6C 61 6D 61 74 69 6F 6E 2E 77 61 76 00 77 61 76 //Media\Windows Exclamation.wav
callplaysounda:
push 1 //Push SND_ASYNC
push 0 //No HMODULE
push wavelocation //Push AddressOf(wavelocation)
call WINMM.PlaySoundA //Call PlaySoundA
ret //Return
dealloc(callplaysounda) //After the thread runs, deallocate the thread.
dealloc(wavelocation) //Deallocate the string. |
I put that in my enable, and for the disable, I just have it do this in the Lua:
| Code: | if isActive == false then
beep()
end |
I understand that the CETrainers were originally designed to just be a testing platform for actual trainer coders to just give to the test team, while he writes the actual trainer, but I can't be fucked to write a trainer each time in C++. It's so much easier to just make a table, hit auto generate, use the nice GUI'D GUI designer and then CTRL+S that shit. |
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mgr.inz.Player
I post too much
 Reputation: 218
Joined: 07 Nov 2008
Posts: 4438
Location: W kraju nad Wisla. UTC+01:00
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| Posted: Thu Jun 13, 2013 4:18 am Post subject: Re: Making your trainer the boopinest |
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| gir489 wrote: | | of course Lua can't do anything without C++'s help. |
95% of my Lua script (in CheatEngine) is:
registered functions created by DB. Rest of code are: loops, tables, string concatenations (and other operations), checking if nil, simple math like math.sqrt( (bx-ax)^2 + (by-ay)^2 + (bz-az)^2 )
Borderlands2 "spawn cheats" would be pain in ass, without Lua of course.
My fancy Auto Assembling and Lua scripting, for CETRAINER ( CE6.2 ):
http://forum.cheatengine.org/viewtopic.php?t=559298
Basically:
1) CE attaches to itself
2) injects DLL to itself (winmm.dll)
3) exports wave file added to table, it's saved in TEMP dir
4) loads this wave file into allocated memory
5) deletes wave file from TEMP dir
6) calling winmm.PlaySoundA works under 32bit and 64bit
7) waits for specific processname and attaches to this process
Works for games that do not use winmm, and I don't have to inject this DLL into game process. I can change script with ease and have few different sounds (enabling sound, disabling sound, error sound, etc)
| Code: | function onPostHotkey0(Hotkey)
local memrec=memoryrecordhotkey_getOwner(Hotkey)
local isActive=memoryrecord_isActive(memrec) --get the state after the hotkey got triggered
cheatcomponent_setActive(CETrainer_CHEAT0, isActive)
if gBeepOnAction then
if isActive then customSound.beepEnable() end
if not isActive then customSound.beepDisable() end
end
end |
With new CE6.3, I would create slightly different AA and Lua script.
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