SC Mod, how to implement for all who wish?

[zonemikel]

well after spending hordes of time on LC just trying to debug it i dont care anymore, screw last chaos, good job lc developers.

Since im really just looking for something to do I turned my attention to good ol starcraft.

This is what i want to do, everything has a "kill" counter but it does nothing but keep track of how many things a certain thing has killed. I want to make it so with more kills, more power.

something like this, if a marine kills 15 things it will get like 10 more hp or something of that sort. Basically so units get more powerful as they do stuff, and some units are more expendable than others.

I think this would add a nice twist to the game, if nothing else me and my friends could play it this way against each other.

I have already found a place to code cave in and add stuff when something is killed. eg incrament kills () {jmp to my function, incrament hp}
I have also found most of the upgrade locations for toss and terrain.

My question is how can i make this work for all clients, would it be sufficent for us both to have the same hack injected? What causes the disconnects? How could I make a mod/hack that users could use across the inet?

thanks everyone, oh and in case anyone is interested

0058D2B7  ground armor
0058D2C7  ground machine armor
0058D2C7  air armor

0058D2A7  seige ability ??
0058D2C7  footsoldier wepon upgrade
0058D2C7  ground machine wepon upgrade
0058D2C7  air wepon upgrade
// others
0058D2C7-01  marine +atk range

// as protoss eax = 2E 
DS:[0058D2A8] = ?? maybe enimie ? i just attacked ? 
DS:[0058D2D5] = protoss sheilds
DS:[0058D2D3] = toss melee wepons
DS:[0058D2CB] = melee armor
DS:[0058D2E7] = dragoon attack range
DS:[0058D2E9] = scarab damage
= mind control didnt break is it in another location ? 
DS:[0058D2E8] = zlot leg enhance

those are all the locations this is the actuall function that does it, dl is the new value of the upgrade, ecx is which upgrade (location) and eax is which race. Im pretty sure all three races are stored in the same location with a different mutiplyer for the array eg. marine eax=0x0 toss eax=0x2E

004CE3BC  |. 889408 98D2580>MOV BYTE PTR DS:[EAX+ECX+58D298],DL

Not sure how each client knows how upgraded each other client is when they are connected, guess thats the core of my question

BTW** ya i know those arent all the upgrades but they are mostly in that area and readily available, also i know things like max hp might be static and span across a class . . . n e way TIA

[ViperSRT3g]

Here are some potentially helpful offsets ^^ These were not found by me.

0058CE0C        Technologies Available (SC) (12 * 24)
0058CF2C        Technologies Researched (SC) (12 * 24)
0058D04C        Research in Progress (SC; Unused) (3 * 12)
0058D070        Upgrades Available (SC) (12 * 46)
0058D298        Upgrades Researched (SC)  (12 * 46)
0058D4C0        Upgrades in Progress lvl 1 (SC; Unused) (6 * 12)
0058D508        Upgrades in Progress lvl 2 (SC; Unused) (6 * 12)
0058D550        Upgrades in Progress lvl 3 (SC; Unused) (6 * 12)

[zonemikel]

Here are some potentially helpful offsets ^^ These were not found by me.

Sweet thanks.

[Jakor]

I almost told you to just do it through a ums game, as many people have done something similar to this, but then you couldn't use it on just any map, so I will stop myself and let you go about your work!

edit: for your question...

having the same hack injected (as long as it is coded to modify every unit that kills something not just your own) is enough. I wrote a backdoor for starcraft in one of the old hacks. One feature I would press F6 or whatever and I would send the command for cheats which were 5 bytes long they command and a dword parameter. with this I could make a command saying "00 01 02 ff ff" where 00 was the command for cheat (which if you weren't running my backdoor would be just thrown away during a multiplayer game) 01 was my backdoor command (I had one for pinging to see who was running my hack one to change minerals one to change gas) 02 is the playernumber for the action and ff ff was the amount of gas/minerals.

[zonemikel]

Thanks jakor, im pretty sure i have it figured out. As long as each client has the mod injected and all the memory addresses are the same through each client it should be ok.

I've been finding stuff all day, i really need to give it a rest . . .

This is the place where im thinking about using a jmp patch, not sure how ill do that in c++ though

// 00479CB1 mov     eax, ebx ; at this point
   ebx = pointer to object killed, +0x64 is type 
   esi = pointer to killing object, +0x64 type
   unit ptr + 0x09 = current hp
   unit ptr + 0x64 = type
   unit ptr + 16d = going to (mouse click)
   // if you change these below werid things happen
   // including jumping across the screen, overlapping and stuffs
   unit ptr + 20d = current location (cant change manually ?)
   unit ptr + 24d = current location (cant change manually ?)
   unit ptr + 27d = current location (cant change manually ?)

so this way i can know who killed who, now i need to find the offset for which player killed which player, i pretty much already found it im just looking in a better place. I might implement something simple at first like when a unit kills another it gets +5hp, so if a unit is killing tons of others it would have more hit points, but 85/35 would suck, i think max hp is static of the unit class (cant change one without changing them all).

[zonemikel]

Well i got the code cave to work in c++, pretty easy. Its nice to see some asm in my naked function, so i can tell wtf is going on when i look at my code in the debugger. BTW thanks to hellinsect for some code in a old post, i used some of his code to implement the writing for the patch, wpm was not doing it for me. I like his style.

void SCMod::jmpPatch(void *pDest, void *pSrc)
{   // credits to hellinsect, i tried to make one from wpm but this is 
    // sweet, im not going to reinvent the wheel!
    DWORD OldAccessRights = 0;
    VirtualProtect(pSrc, 5, PAGE_EXECUTE_READWRITE, &OldAccessRights);
    *(BYTE*)((DWORD)pSrc)    = 0xE9;
    *(DWORD*)((DWORD)pSrc+1) = (DWORD)pDest - (DWORD)pSrc - 5;
    VirtualProtect(pSrc, 5, OldAccessRights, &OldAccessRights);
}
void SCMod::nopIt(void *pDest, int nops)
{   // just another implementation of the code above
    DWORD OldAccessRights = 0;
    VirtualProtect(pDest, nops, PAGE_EXECUTE_READWRITE, &OldAccessRights);
    for(BYTE i = 0; i<nops; i++)
    *(BYTE*)((DWORD)pDest + i) = 0x90;
    VirtualProtect(pDest, nops, OldAccessRights, &OldAccessRights);
}

I made the code cave just give the killer 100 hp to test and it works pretty good. Now its just a matter of bringning everything together so that different types of things happen depending on what attacks what. But for the time being im fed up with it.

__declspec(naked) void codecave1(void)
{
    __asm{
    PUSHAD
    ADD DWORD PTR DS:[ESI+9],64
    POPAD
    MOV EAX,EBX
    MOV DWORD PTR DS:[EBX+8],0
    JMP retpt
    }
}

--UPDATE--
Well i dont want to double post so i am editing this. Everything is coming along nicely, that code cave is a nightmare though, it was hashed out, im making a much better one. Also i've gotten text to print out on the screen, almost it prints just gibberish, it will be finished soon.

Im thinking of making it so there is like a random time based upgrades and stuff to switch it up, like you might get better ground attack upgrade while the other team gets air attack upgrade and the other team gets def upgrade or something of that sort, it will last for like 2 minutes then "wear off".

Also im doing this all in c++ in a very modular way. Once i clean up my code it will be very useful to anyone who wants to mess with starcraft. It will have stuff like .codecave .bwpubprint and lots of other stuff that are basic to most hacks/mods.

I just got a new puter today (core2 duo) so i was setting that up with windows xp 64. But ill get back to this in a few days.

[zonemikel]

This are still going along well, everything is working. Its just a matter of figuring out which triggers should give which upgrades to make it fun. If you just get a upgrade every time you kill five people it would be very linear and boring (any ideas welcome here!!). So i currently have it setup so it will give a upgrade based on whatever unit killed the 5th enemy unit, so if you kill like 5 people with your marines you will get a ground armor upgrade if you kill 5 more people with your wraith you'll get a air attack upgrade.

I'm going to give it a break for a while while i "brood" over the best way to continue. I'll upload the .dll if anyone wants to try it out, i havent made a injector yet.

[poiuy_qwert]

You should look into using MPQDraft/FireGraft plugins to do this, much less messy then injecting dlls and requiring everyone to run a hack. I can supply more info when I get home tomorrow if you want.

[zonemikel]

You should look into using MPQDraft/FireGraft plugins to do this, much less messy then injecting dlls and requiring everyone to run a hack. I can supply more info when I get home tomorrow if you want.

Ya, that would be the smart way to do things. Those look like nice programs, not sure how they work. I just did this to get my mind off of other things, i have already moved on to several other things.

I did get this to work as desired and played my friend online, he beat me badly (he never beats me). It was fun.