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ToxicBunny
How do I cheat?
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Joined: 02 Oct 2014
Posts: 8
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 Posted: Tue Dec 20, 2016 6:26 am Post subject: Execution order in AA scripts |
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Hi everyone.
I have a script in my table that includes ASM and at the end has some lua code.
The ASM works perfectly, and so does the LUA. My problem is that the LUA code seems to always run BEFORE the ASM code, no matter where I place it. I've even resorted to doing a luacall at the end of the ASM and it still runs the LUA function first.
I've attached the code for reference. This is the version where I use luacall. I've tried embedding the LUA below the ASM as well.
All help appreciated 
| Code: | { Game : metro2033.exe
Version:
Date : 2016-12-16
Author : JasonD
This script does blah blah blah
}
define(address,"Metro2033.exe"+33A561)
define(bytes,8B EC 83 E4 F8)
{$lua}
--print("- - - - - - - - - - ")
function do_aobscan()
print("Doing AOB Scan")
addresslist = getAddressList()
aob_base_desc = [[AOB Root]]
aob_base_mr = addresslist_getMemoryRecordByDescription(addresslist, aob_base_desc)
aob_base_mr.Color="0x0000FF"
-- raspberrypirules
aob_base = "72 61 73 70 62 65 72 72 79 70 69 72 75 6C 65 73"
aob_base_mr.Color="0xFF00FF"
--aob_base_addr = AOBScan("72 61 73 70 62 65 72 72 79 70 69 72 75 6C 65 73")
aob_base_addr = AOBScan("726173706265727279706972756C6573")
print("AOB Base Addr: ", aob_base_addr)
aob_base_scancount = aob_base_scancount + 1
aob_base_mr.Color="0x000000"
end
{$asm}
[ENABLE]
assert(address,bytes)
alloc(newmem,$1000)
alloc(testmem,$1000)
label(code)
label(return)
testmem:
DB 'raspberrypirules',0
newmem:
jmp code
code:
mov ebp,esp
and esp,-08
jmp return
address:
jmp newmem
return:
luacall(do_aobscan())
{ ---------------------------------------------------------------}
{$lua}
print("- - - - - - - - - - ")
--sleep(1000)
{$asm}
[DISABLE]
address:
db bytes
// mov ebp,esp
// and esp,-08
dealloc(newmem)
dealloc(testmem)
{$lua}
--
print("Disabling test.")
aob_base_mr.Address=""
aob_base_mr.Color="0x0000FF"
{$asm}
{
// ORIGINAL CODE - INJECTION POINT: "Metro2033.exe"+33A561
"Metro2033.exe"+33A557: CC - int 3
"Metro2033.exe"+33A558: CC - int 3
"Metro2033.exe"+33A559: CC - int 3
"Metro2033.exe"+33A55A: CC - int 3
"Metro2033.exe"+33A55B: CC - int 3
"Metro2033.exe"+33A55C: CC - int 3
"Metro2033.exe"+33A55D: CC - int 3
"Metro2033.exe"+33A55E: CC - int 3
"Metro2033.exe"+33A55F: CC - int 3
"Metro2033.exe"+33A560: 55 - push ebp
// ---------- INJECTING HERE ----------
"Metro2033.exe"+33A561: 8B EC - mov ebp,esp
"Metro2033.exe"+33A563: 83 E4 F8 - and esp,-08
// ---------- DONE INJECTING ----------
"Metro2033.exe"+33A566: F3 0F 10 89 24 08 00 00 - movss xmm1,[ecx+00000824]
"Metro2033.exe"+33A56E: F3 0F 58 89 20 08 00 00 - addss xmm1,[ecx+00000820]
"Metro2033.exe"+33A576: F3 0F 58 89 1C 08 00 00 - addss xmm1,[ecx+0000081C]
"Metro2033.exe"+33A57E: A1 A4 82 A1 00 - mov eax,[Metro2033.exe+6182A4]
"Metro2033.exe"+33A583: F3 0F 59 0D 7C 0A 96 00 - mulss xmm1,[Metro2033.exe+560A7C]
"Metro2033.exe"+33A58B: F3 0F 59 89 10 0C 00 00 - mulss xmm1,[ecx+00000C10]
"Metro2033.exe"+33A593: 83 EC 08 - sub esp,08
"Metro2033.exe"+33A596: 3B 81 C8 0B 00 00 - cmp eax,[ecx+00000BC8]
"Metro2033.exe"+33A59C: 53 - push ebx
"Metro2033.exe"+33A59D: 57 - push edi
}
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Dark Byte
Site Admin
 Reputation: 470
Joined: 09 May 2003
Posts: 25788
Location: The netherlands
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| Posted: Tue Dec 20, 2016 6:47 am Post subject: |
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correct, the lua code executes before aa. the result of the lua function will be interpreted by the auto assembler as native aa commands
e.g
| Code: |
00400500:
{$lua}
return 'db 90 90 90'
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is equivalent to
| Code: |
00400500:
db 90 90 90
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ToxicBunny
How do I cheat?
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Joined: 02 Oct 2014
Posts: 8
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Dark Byte
Site Admin
Reputation: 470
Joined: 09 May 2003
Posts: 25788
Location: The netherlands
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| Posted: Tue Dec 20, 2016 7:39 am Post subject: |
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launch a timer that runs after it has been executed, or try giving it children configured to activate at the same time as their parent
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mgr.inz.Player
I post too much
 Reputation: 222
Joined: 07 Nov 2008
Posts: 4438
Location: W kraju nad Wisla. UTC+01:00
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| Posted: Tue Dec 20, 2016 10:54 am Post subject: |
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Inside AA script we can add Lua script blocks (it's a new feature since CE6.4). You have to treat it more or less as a text preprocessor.
Lua script doesn't know anything about what AA script is doing. And, Lua script blocks are executed before the "AA script analyzing and assembling".
But it would be a bad feature if there was not any way of passing some information from one to another. Lua script can pass some information to the AA script (can be done with "return something" at the end of Lua block).
Communication I was talking about is made only once while enabling/disabling AA script.
AA scripts and Lua scripts can get and set user symbols. We can use it to extend Lua<->AA communication.
If you want to exchange data between assembled code (working in game thread and game memory) and Lua script (working in CE thread and accessing game memory) for a longer time period, you just use user symbols.
In AA something like this: "mov [usersymbol],eax",
in Lua something like this: readInteger("usersymbol")
inside ontimer function of Lua timer object.
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