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Trouble executing a game function from the mono dissector

 
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DiamondsBattle
How do I cheat?
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Joined: 02 Aug 2022
Posts: 3

PostPosted: Tue Aug 02, 2022 10:20 am    Post subject: Trouble executing a game function from the mono dissector Reply with quote

Hey,
I have used DNSpy to obtain some method names and I now want to execute them with Cheat Engine but I am running into some trouble. I have pretty much no experience in lua and therefore just want to call methods manually, without needing any script.

First, when I execute a function that requires no arguments and that should return a list of strings, I get a "Method returned: 482464096" text. How can I get the actual output ?

Second, every single time I try to pass arguments to a function, I get the following output :
Code:

Error:C:\Program Files\Cheat Engine 7.4\autorun\monoscript.lua:2297: attempt to index a nil value (global 'monopipe')

Am I doing something wrong, can I not call a function like this and do I need to use a script ?

Thanks
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Frouk
Master Cheater
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Joined: 22 Jun 2021
Posts: 395
Location: mov dword ptr [Ukraine]

PostPosted: Wed Aug 03, 2022 2:57 am    Post subject: Reply with quote

try to use executeMethod or executeCodeEx
executeMethod is used when game has functions for each entity itself, like using it:
Code:
CEntity *player = FindPlayerEntity();
return player->GetHeading(); //first parameter is actually: CEntity *this, but for this case it won't use since we executing function from entity itself

and also without making player variable:
Code:
CEntity::GetHeading(FindPlayerEntity()); //first parameter is: CEntity *this

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DiamondsBattle
How do I cheat?
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Joined: 02 Aug 2022
Posts: 3

PostPosted: Thu Aug 04, 2022 9:06 am    Post subject: Reply with quote

As I said, I do not want to use a script, only the mono dissector which gives me an error.
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cooleko
Grandmaster Cheater
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Joined: 04 May 2016
Posts: 568

PostPosted: Thu Aug 04, 2022 12:31 pm    Post subject: Reply with quote

Just to point out the fallacy here, your question is:

"I want to eat soup with a fork, but the broth keeps falling back into the bowl. I don't want to use a spoon or ladle."

"You really need to use a spoon, the fork's functionality simply cannot meet your requirements, but a spoon's does."

"I told you I don't want to use a spoon, tell me how to make it work with the fork."

Maybe someone knows how to make the fork work, perhaps there is a flap/wrapper that can be used to mimic the spoon well enough, but you have the tools available to do it right and are choosing not to use them.
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DiamondsBattle
How do I cheat?
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Joined: 02 Aug 2022
Posts: 3

PostPosted: Sat Aug 06, 2022 6:45 am    Post subject: Reply with quote

Except here there's literally an intended functionnality that should make it possible without a script using the mono dissector...

Also, has the software need to have a mono.dll file ? The software only has a Mono.Security.dll file.


Edit : I made a lua script that should do what I want, but I keep getting the same error as in my first post.

Code:
if (syntaxcheck) then return end
if (LaunchMonoDataCollector()==0) then error('no mono') end

local method = mono_findMethod('', 'InventoryService', 'addItem')
local class = mono_method_getClass(method)
local instance = mono_class_findInstanceOfClassListOnly('', class)

local r = mono_invoke_method('', method, instance[#instance], {type=vtString, value='real_medieval_universal_basic_head'},{type=vtDouble, value=1},{type=MONO_TYPE_BOOL, value=false}, {type=MONO_TYPE_BOOL, value=true})
if r then
   print(r)
end


As I said, I have almost no experience in lua, so it could be a dumb mistake Sad
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