Cheat Engine

[SinuousSnake]

Hi there, I am trying to find the instruction in Company of Heroes (New Steam Version) that toggles enemy units through the fog of war. I am brand new to CE (completed the tutorial, watched a few videos and read a little around here) so I am probably doing things very wrong, but I am incredibly frustrated and at a dead end.

I'm trying to do a value search whilst enemy units are revealed through FoW. I start with an unknown initial value, get enemy units to be revealed in the FoW and search increased value - when they are no longer revealed, I do decreased value - rinse and repeat. I have gone through this process multiple times getting down to 10-15 addresses each time, but none of them are ever correct, so I must be making a misstep somewhere. I have also tried starting w/ unknown initial value, then searching decreased when revealed, increased when not etc. in case the instruction behaves like that, but I doubt it does as there's an old hack that used to work (before steam version) which shows that the value is increased when units are revealed. There's a thread for that old hack on another site that actually shows the instruction that used to work, and I would link that here but I'm not sure that's allowed. I'm sure this is actually very simple for someone that understand CE better than I do, but it's driving me insane as I know the pieces are right in front of me I just can't put them together! I'm just left scratching my head trying to figure out how the instruction was found in the first place.

Any help at all would be greatly appreciated, and I'd be happy to better explain myself/what I'm trying to do if need be.

[Rydian]

Instead of increased/decreased, do changed, then do some unchanged scans while the status is still the same to filter out other junk.

[SinuousSnake]

Thanks Rydian, using changed/unchanged has definitely helped in cutting down the results significantly faster. I've still not been able to find the correct value, as 3 or 4 times now I have gotten it down to 20-25 results, and two different problems have come up. The first two times I'd gotten it down this far, as I went through the various possible addresses changing the values to test which toggles units through FoW, I'd changed something that caused the game to crash and thus lost all of my progress. The other times I'd gotten that far, I inexplicably got to a point where all 25 results disappeared when I scanned for changed value the final time - obviously in that case I had made a mistake somewhere, but I'm not sure where because I never scanned for changed if I hadn't gone from units not revealed in FoW to revealed, and I never scanned unchanged if vice versa. It's incredibly frustrating because each time I try this it takes a good hour+, am not really sure what mistakes I am making and as a result I never feel any closer to figuring this out.

Also, as previously mentioned there is an old hack that used to work, and from a certain thread on another site I've discovered the on/off values for the instruction in the old hack - it was 256 for units in FoW off, and 257 for units in FoW on. Could I find the current instruction by searching for those exact values, or would the values have changed with the various patches since that old hack last worked? I have tried searching for those exact values briefly, but for some bizarre reason they turn up several results where the value is 0 (I am searching all value types, so it's not that.) Very confusing.

Also from that same thread, the old instruction for what I am looking for was:

[Rydian]

When dealing with units in an RTS, it can be helpful to work your way backwards through the address list, trying the highest ones first (as the first/lower addresses will usually be engine things, while stuff allocated last/lowest will be temporary/new things like unit data).

Also what type have you scanned for? Generally I'd think visibility would be a byte value but it could be in a bitfield or a float for a gradient or something.

256/257 sounds like 0/1 in a different way for me, but I don't have experience with the game.

"_Mutex+7279" isn't going to help unfortunately, it's a bunch of crap in a single massive function so it won't get you close to it.

However "88 81 AC040000" may work. You can try to search for Array of Byte and type that in and see if it gets any results. You may need to uncheck "writable" for the scan.

[Gniarf]

Company of heroes is built on the dawn of war engine, and I remember that for dawn of war some of my colleagues hacked the FoW on/off variable in replay mode, somehow their hack also affected normal gameplay mode.
See if you can do something like that in CoH.