Cheat Engine

low_density · Posted: Thu Sep 30, 2010 7:50 am Post subject: Godmode for player units

hi i found this aa script for age of empires 3 : the asian dynasties somewhere in the auto assemble script section, just updated the address for version 1.01a, was trying it out, when i build a lot of units, my game starts to lack like hell, which i dunno why... can anyone help me to see if there is anything wrong with the script?

Geri · Moderator Reputation: 112 Joined: 05 Feb 2010 Posts: 5627

Maybe You should ask Recifense. Looks like this code is made by Him. I never played Age of Empires 3 so no clue.

low_density · Posted: Thu Sep 30, 2010 8:20 am Post subject:

yup it belongs to him hahas i jut remembered it... but he's not online is he? anyway, can i ask you how do you make a script to make god mode for strategy games? it consists of checking if it's the player's unit or just ai's unit, so it's quite hard... i also thought of some ways, like check if a unit is hit; if it is hit, check if it's player's unit, and if it is, don't do the damage reduction... sorry i'm a noob in asm, please teach me how to do it, i really wanna learn...

Geri · Moderator Reputation: 112 Joined: 05 Feb 2010 Posts: 5627

Usually this is the method:

When a unit takes damage, the script is checking the unit's data structure to find a player ID. Then if the unit is belonging to the AI, it will take damage as usual and if the unit is belonging to the human player, it will not take damage or even get max health too. The player ID and other information about the unit is stored differently in almost every game, so You always need to analyze it and find it Yourself.

I don't know how to make an aob version for this table, since I don't see the original code and can't check arrays in the game this way.

low_density · Posted: Thu Sep 30, 2010 10:44 am Post subject:

the array of bytes for the original code is 8B 97 B4 00 00 00 89 4F, i tried using the aobscan command, like this:

Geri · Moderator Reputation: 112 Joined: 05 Feb 2010 Posts: 5627

First You need to check that 8B 97 B4 00 00 00 89 4F is not pointing to other addresses too. The best is if You have only 1 search result if You search for this array. Also make sure to click on "Also scan read-only memory" when You search for codes.

CE 5.6.1 has a bug which prevents You to change scripts which are using aobscans. Try adding Your script to the table as a new script instead of modifying the previous one.

low_density · Posted: Thu Sep 30, 2010 12:41 pm Post subject:

thank you, i went to add the script as a new one and it worked.... lol.. but for strategy games, like AOE and Civilization, the health pointer don't only points to your unit, but the enemies' as well, so how do you make it such that it points only to your own? sort of like nullifying damage done to the units you own...

Geri · Moderator Reputation: 112 Joined: 05 Feb 2010 Posts: 5627

low_density · Posted: Thu Sep 30, 2010 11:30 pm Post subject:

thank you, i would like to ask, normally, when you search for resources, what do you search for? byte, 2 byte, 4 byte or float? i can't seem to find the value....

Geri · Moderator Reputation: 112 Joined: 05 Feb 2010 Posts: 5627

All of them. If You can't find it with exact value search with any type, You need to use unknown initial value search.

low_density · Posted: Fri Oct 01, 2010 12:59 am Post subject:

i tried using unknown initial value search, but i can't seem to find any too... and also, how do you search for cooldown values? if i found one address that has the opcode: fstp dword ptr [esi+08] what does it means?

Geri · Moderator Reputation: 112 Joined: 05 Feb 2010 Posts: 5627

low_density · Posted: Fri Oct 01, 2010 11:22 am Post subject:

ok i found the health hacking point, but i still dun quite understand the whole structure lol.. i'm very new in asm... but anyway, i tried to find the resource hacking point for aoe3, when i was searching, i couldn't find the exact value of the resource (food, gold or wood).. i can only find a pointer value that's always changing... meaning that when i change the value, the amount of the resource i was trying to change will jump randomly, sometimes negative value and sometimes positive value... when i try to find out what accesses the code, i was brought to the main hacking point for resources... but i don't know what it meant... here's part of it:

Geri · Moderator Reputation: 112 Joined: 05 Feb 2010 Posts: 5627

Ah I see from the script that the value is encrypted. The script is decrypting it, check and change the value as float and encrypt it again. You can changed the value You want to get in these points:

cmp eax,459c4000 // Greater the 5000?
mov eax,459c4000 // Make eax = 5000

That is the easies way. Or You can make it customizable by registering a symbol for the value and add it to Your table and You can change it anytime after that.

low_density · Posted: Fri Oct 01, 2010 11:58 am Post subject:

sorry pardon me but i don't get what you mean... if i wan to change the values of the resources independently and not change all of it at one go, how do i do it? what you mean is the value of the resource are encrypted? that's why i cannot find the value with cheat engine? and by the way, how do you make instant build, instant train and other stuff? when i'm training a villager, i tried to search for the cooldown timer, when i'm beginning to train, i search for an unknown value, after that, as the timer goes down, i search for decreased, and when i managed to train the villager and the timer disappears, i search for decreased also, then i start to train another villager and i search for increased, then decreased again, but i will end up with no values... what did i do wrongly?