How to prevent cheating with Gamecih?

Question

Background

I\'ve had problems for quite a while now with players cheating in my android game. For a strict single-player game this wouldn\'t be a big is

Answer 1

Calculate your stats dynamically from a stored value.

private double getSaltedSqrt(int i){
    return Math.sqrt(i)+1337;
}

private int getTrueValue(double i){
    return (i-1337)*(i-1337);
}

This way, no regular-brained human will be able to find your values from RAM ever. Somebody with 100 health will have a health value of 1347.0

If somebody deals 10 damage to that player, you just have to call:

currentHealth = getSaltedSqrt(getTrueValue(currentHealth)-damage);

However, the most secure way to do this, is to implement all those changes via server.