[HELP IN C++] Lock game memory (keep it from changing)

[343 guilty spark]

[GAME: GTA SA]

so i have this code (asi plugin) to make the car steer where the camera is pointed like halo CE and halo 2 vista and

halo 3, and halo 4, and possibly halo 5 when it comes out.

void run(){    running = true;    float steer;    DWORD pCar; // i know i can be a bike or a horse.    while(running){        pCar = getCar();        if(playerDefined() && playerAlive() && pCar > 0 && keyToggoled(9) && !inMenu()){                steer = getDeltaAngle(getCameraAngle(), getFixedPlayerAngle());                steer = sinf(steer) * 1.2f; // x1.2 to steer faster                if(steer < -STEER_LIMIT) steer = -STEER_LIMIT;                if(steer > STEER_LIMIT) steer = STEER_LIMIT;                *(float *) (pCar + 1172) = steer;                  //****** PROBLEM **********//                Sleep(1); // sleep => wont work! i must reset faster than the game does. [email protected]#n it        }else{            Sleep(500);        }        }}

so i need a way to lock (pCar + 1172) where pCar is the car pointer, 1172 is the steering angle

how can i do that? or do you know a better way? if so then why did you take all this time to tell me?

WHY? to reduce cpu usage and make steering more efficient. (60 check per sec is good).

 

(this mod was released under the name "Halo Driving Style" but it causes the fps to drop)

Edited February 15, 2014 by 343 guilty spark

[fastman92]

Use Cheat Engine to find what assembly instructions of GTA SA write to your memory addresses.

NOP these addresses by 0x90 code with function in your plugin.

[Wesser]

You need to NOP 6 bytes at 0x006ADD22 and write DD D8 90 90 90 90 at 0x006ADD65 to prevent the game from updating the wheel steering angle for cars only. I advice you to learn the assembly language first and inject some code at these addresses rather than creating new threads which make your code desyncronized in relation to the execution of the one of the game.

 

Note: you may also consider m_fRearSteerAngle at CVehicle + 0x0498 and add 180 degrees to it for 4-wheel steering vehicles (like the Monster).

Edited February 16, 2014 by Wesser

[343 guilty spark]

THANK YOU.

i dont want to test if the player is driving a monster (i dont belive in monsters) or not, so CJ can kiss his eye! (if he can)

i have no idea how does code injection work, can you give an example?

 

 

EDIT. i tried it i works great with Sleep(100);

thanks man!

 

MOD (OPEN SOURCE, someone broke in an broke the door):

http://www.gtagarage.com/mods/show.php?id=25226

Edited February 16, 2014 by 343 guilty spark