Cheat Engine

[moccor]

I learn a lot from YouTube and these forums from simple Google searches, but now I have something I don't understand (and yes I am kinda new to Cheat Engine/scripts). To keep it short and sweet, is there some info that can easily explain my title or can someone tell me what I am doing wrong here in my script. I am more of a hands-on learner than I am a book learner.. I don't plan to be the best so my methods may be crappy but still work for basic stuff.

[ENABLE]

aobscanmodule(infFlashlight,MetroExodus.exe,F3 0F 11 99 78 0A 00 00) // should be unique
alloc(newmem,$1000,"MetroExodus.exe"+B9BD28B)

label(code)
label(return)

newmem:

code:
movss [rcx+00000A78],xmm3
jmp return

infFlashlight:
jmp newmem
nop
nop
nop
return:
registersymbol(infFlashlight)

[DISABLE]

infFlashlight:
db F3 0F 11 99 78 0A 00 00

unregistersymbol(infFlashlight)
dealloc(newmem)

Basically I would like to use this to create infinite flashlight. I had the value for 'max', its a double. I can find it again but it is irrelevant atm. Basically my simple methods would be something like this :

[ENABLE]

aobscanmodule(infFlashlight,MetroExodus.exe,F3 0F 11 99 78 0A 00 00) // should be unique
alloc(newmem,$1000,"MetroExodus.exe"+B9BD28B)

label(code)
label(return)

newmem:

code:
movss [rcx+00000A78],(int)999
jmp return

infFlashlight:
jmp newmem
nop
nop
nop
return:
registersymbol(infFlashlight)

[DISABLE]

infFlashlight:
db F3 0F 11 99 78 0A 00 00

unregistersymbol(infFlashlight)
dealloc(newmem)

But I assume instead of '(int)' I can use '(double)' right? Or '(float)'? but that does not work when I try '(double)' so I def am doing something wrong, and (int) also does not work, which simply means there is something I need to learn so I don't have to ask for help for each new cheat I want . I am actually spending time watching videos on tutorials but I haven't read up/watched anything about using float/double in scripts. Maybe I am using the wrong type of script? Idk. I also feel like there is a even quicker and easier method by simply 'nop' the code from ever looking for a value change..

[Dark Byte]

use mov instead of movss is only for registers and xmm
mov dword [rcx+00000A78],(float)xxxx

or

mov rax,(double)xxx
mov [rcx+00000A78],rax

[moccor]

I appreciate the response. Is there something specific I can read up on so I understand how you came up with that? I understand from reading guides that a lot of the knowledge just comes from practice or past knowledge of assembly/coding so maybe there isn't a simple way to learn what you've shown me

[ParkourPenguin]

This beginner's guide from Intel is terse and prepares the reader well enough to start reading the actual documentation; however, it's probably too esoteric for someone new to computer architecture. Search for "x64 tutorial" and start reading. Just take what you're given with a grain of salt: there's a lot of false, misleading, or otherwise bad information out there.

Intel's Software Developer Manual and AMD's Architecture Programmer's Manual both have good information. The instruction set references from both can be found online (e.g. https://www.felixcloutier.com/x86/), but you generally need to read other parts of the manuals to understand the meaning of all the information presented in the instruction set references.

[moccor]

I appreciate the info both of you provided, thanks. Yeah many guides and info use different injection types and I know the way I do scripts is pretty basic, but using the link you ParkourPenguin provided and shown the correct way by Dark Byte, this gives me some stuff to play around with and a new thing to search about for more information. Thanks again