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Groupscan + add results to current adress list with lua?

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squerol
Advanced Cheater

Reputation: 2

Joined: 06 Jul 2015
Posts: 65
Location: Poland

Posted: Sun Jun 25, 2017 10:49 am Post subject: Groupscan + add results to current adress list with lua?

Hey.
I have a small question:

Is it possible (with lua script of course) to perform groupscan, and then fill the current adress list with scan results?
The adresses from groupscan result should be automatically named too, like:
- "resultA1"
- "resultA2"
- "resultA3"
- "resultA4"
- "resultA5"
- "resultA6"
- etc... You know what I mean

For example, this groupscan command in my game has always 1 result, which is correct.
Tested on other PC too.

Code:

4:0 w:20 4:12 w:4 4:9 w:4 4:48 4:384 w:120 4:41

So, how the lua script should look like?
I was looking for some scripts on this forum (only found some lua value scans) but could not modify and continue them so they will work as I want. I'm total n00bzor in CE to be honest.

Thank You for any help.

I've found idea with groupscan in lua because in my game (Two Worlds 1 by Reality Pump) some adresses couldn't be tracked with pointers correctly (or I just sucks, dunno) - some adresses need manual correction of pointer offset a little bit every time.
I don't have motivation and skills to learn LUA, AoB, autoassemblys etc. too, so groupscan is the only method for me - especially because where pointerscan fails, groupscan success with 1, correct result even on other PC Very Happy

squerol
Advanced Cheater

Reputation: 2

Joined: 06 Jul 2015
Posts: 65
Location: Poland

Posted: Mon Jun 26, 2017 8:38 am Post subject:

Or maybe just simple value change of found groupscan result is possible?

Found script for String result value change through lua on CE forum (by DarkByte)

Code:

ms=createMemScan()
ms.firstScan(soExactValue,vtString,0,"3.6","",0, 0xffffffffffffffff, "", fsmNotAligned, "1", false, false, false, false)
ms.waitTillDone()

f=createFoundList(ms);
f.initialize();

resultToWrite=stringToByteTable("40.6"..string.char(0))

for i=0,f.Count-1 do
writeString(f.Address[i], "40.6")
writeBytes(("0x"..f.Address[i])+4,0)
end

f.destroy()
ms.destroy()

It works.
But sadly I have no idea how to edit it so it will work with my example groupscan from first post (no scan for string)...

Code:

4:0 w:20 4:12 w:4 4:9 w:4 4:48 4:384 w:120 4:41

For example:
- keep 4:0,
- change 4:12 value to 4:24,
- 4:9 to 4:50,
- 4:48 to 4:0,
- 4:384 to 4:100,
- 4:41 to 4:1,

Thanks.

--------------------------------

EDIT:

Progressed a bit...
The first adress from group scan (4:0 result) is changed by script...
But how to change later adresses from group scan result?
4:12, 4:9, 4:48, 4:384 and 4:41 from groupscan?

Code:

ms=createMemScan()
ms.FirstScan(soExactValue, vtGrouped, rtRounded, "4:0 w:20 4:12 w:4 4:9 w:4 4:48 4:384 w:120 4:41","", 0, 0xffffffffffffffff,"", fsmNotAligned,"1", false, false, false, false)
ms.waitTillDone()

f=createFoundList(ms);
f.initialize();

resultToWrite=DwordToByteTable("55")

for i=0,f.Count-1 do
writeInteger(f.Address[i], "55")
writeBytes("0x"..f.Address[i])
end

f.destroy()
ms.destroy()

Thanks
_________________

https://www.youtube.com/user/SquerolBoss

FreeER
Grandmaster Cheater Supreme

Reputation: 53

Joined: 09 Aug 2013
Posts: 1091

Posted: Mon Jun 26, 2017 1:15 pm Post subject:

squerol wrote:

But how to change later adresses from group scan result?

The address you get from f.Address[i] is the address of the first element, so you just figure out what the offsets are from that.

4:0 = 0 (first value)
w:20 = 0 +4 (last offset + last size)
4:12 = 0+4+20 (last offset + last size)
w:4 = 0+4+20+4 (last offset + last size)
4:9 = ... +4
w:4 = ... +4
4:48 = ... +4
4:384 = ... + 4
w:120 = ... + 4
4:41 = ... + 120
note these offsets are in decimal, which is what lua uses by default, but the auto assembler (and most of the rest of CE) uses hex by default for addresses and offsets

So to

Quote:

- keep 4:0,
- change 4:12 value to 4:24,
- 4:9 to 4:50,
- 4:48 to 4:0,
- 4:384 to 4:100,
- 4:41 to 4:1

You'd use something like

Code:

for i=0,f.Count-1 do
-- f.Address[i] is a string by default, since I don't want to concatenate using ..
-- which would be interpreted by CE and treat the offsets as hex
-- first convert it to a number and then use normal addition in lua
local addr = tonumber(f.Address[i])
-- keep 4:0 by doing nothing
-- change 4:12 to 24
writeInteger(addr+24, 24)
-- 4:9 to 4:50
writeInteger(addr+32, 50)
-- 4:48 to 4:0
writeInteger(addr+40, 0)
-- 4:384 to 100
writeInteger(addr+44, 100)
-- 4:41 to 1
writeInteger(addr+164, 1)
writeBytes("0x"..f.Address[i])
end

You may want to double check my math if you try it and some of it doesn't work as expected lol

squerol
Advanced Cheater

Reputation: 2

Joined: 06 Jul 2015
Posts: 65
Location: Poland

Posted: Mon Jun 26, 2017 2:02 pm Post subject:

FreeER wrote:

squerol wrote:

But how to change later adresses from group scan result?

Quote:

- keep 4:0,
- change 4:12 value to 4:24,
- 4:9 to 4:50,
- 4:48 to 4:0,
- 4:384 to 4:100,
- 4:41 to 4:1

You'd use something like

Code:

You may want to double check my math if you try it and some of it doesn't work as expected lol

Oh, looks nice, Thank You very much for clear explaination.

About math, checked it, I think the offset of final adress should be 168, right?

Anyway, even after skipping the last adress with unsure offset, or just leaving just one, I'm getting the same error while executing script:

Code:

Error:[string "ms=createMemScan()..."]:10: attempt to perform arithmetic on a nil value (local 'addr')

To be honest, it's just like language from other galactic for me, don't understand it, google don't help too there.

Do You have any idea, @FreeER, what could triggered it?

Full lua:

Code:

ms=createMemScan()
ms.FirstScan(soExactValue, vtGrouped, rtRounded, "4:0 w:20 4:12 w:4 4:9 w:4 4:48 4:384 w:120 4:41","", 0, 0xffffffffffffffff,"", fsmNotAligned,"1", false, false, false, false)
ms.waitTillDone()

f=createFoundList(ms);
f.initialize();

for i=0,f.Count-1 do
local addr = tonumber(f.Address[i])
writeInteger(addr+24, 24)
writeBytes("0x"..f.Address[i])
end

f.destroy()
ms.destroy()

Thanks.
_________________

https://www.youtube.com/user/SquerolBoss

FreeER
Grandmaster Cheater Supreme

Reputation: 53

Joined: 09 Aug 2013
Posts: 1091

Posted: Mon Jun 26, 2017 5:23 pm Post subject:

yeah, it should be 168 Smile

Code:

attempt to perform arithmetic on a nil value (local 'addr')

means that addr had the value nil (basically undefined or not set) but was used in some kind of math (in this case addition). Since the code tries to set it to tonumber(f.Address[i]) that means that tonumber returned nil instead of a valid number, which means that what it got wasn't a valid number.... ah, I forgot that the string is going to be in hex like "4003BC" and that tonumber assumes it'll be base 10 by default where a letter would mean it's not a valid number.

simple example code

Code:

print(tonumber("A")) -- nil (not a base 10 number)
print(tonumber("A",16)) -- 10, 9+1 in base 16 is 0xA, decimal 10
print(tonumber("G",16)) -- nil, not a valid digit in hex, only 0-F

So it should be as simple as using

Code:

local addr = tonumber(f.Address[i],16)

Sorry 'bout that... it does tend to be the simple things that you forget Embarassed

squerol
Advanced Cheater

Reputation: 2

Joined: 06 Jul 2015
Posts: 65
Location: Poland

Posted: Tue Jun 27, 2017 8:05 am Post subject:

FreeER wrote:

yeah, it should be 168 Smile

Code:

attempt to perform arithmetic on a nil value (local 'addr')

Code:

print(tonumber("A")) -- nil (not a base 10 number)
print(tonumber("A",16)) -- 10, 9+1 in base 16 is 0xA, decimal 10
print(tonumber("G",16)) -- nil, not a valid digit in hex, only 0-F

So it should be as simple as using

Code:

local addr = tonumber(f.Address[i],16)

Sorry 'bout that... it does tend to be the simple things that you forget Embarassed

Wow, Thank You Very Much for deep explaination and script correction, now it works as intended!

Now, with Your lua script I can continue modding "Two Worlds 1" and fix adresses for which I was unable to find correct pointer Embarassed

Fixed, working script now:

Code:

ms=createMemScan()
ms.FirstScan(soExactValue, vtGrouped, rtRounded, "4:0 w:20 4:12 w:4 4:9 w:4 4:48 4:384 w:120 4:41","", 0, 0xffffffffffffffff,"", fsmNotAligned,"1", false, false, false, false)
ms.waitTillDone()

f=createFoundList(ms);
f.initialize();

for i=0,f.Count-1 do
local addr = tonumber(f.Address[i],16)
writeInteger(addr+24, 24)
writeInteger(addr+32, 50)
writeInteger(addr+40, 0)
writeInteger(addr+44, 100)
writeInteger(addr+168, 1)
writeBytes("0x"..f.Address[i])
end

f.destroy()
ms.destroy()

Thanks once more!

Quote:

Sorry 'bout that... it does tend to be the simple things that you forget Embarassed

_________________

https://www.youtube.com/user/SquerolBoss

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