//This function is expanded into multiple lines so I can explain my reasoning
int revised_cth(int cth, int karma)
{
	int scalar = min(cth,100-cth);   //cth=50 will be affected more by karma than cth=10 or cth=90
	int modifier = karma*scalar/100; //scale our karma modifier accordingly
	int result = cth + modifier;     //just add the modifier to our original cth
	result = max(5,min(95,result));  //cap within 5-95
	return result;
}

int update_karma(int cth, int karma, bool hit)
{
	//If we miss, our karma goes up. If we hit, our karma goes down.
	//If we miss when we were likely to hit or we hit when we were likely to miss,
	//  then our karma changes a lot.
	//If we hit when we were likely to hit or we miss when we were likely to miss,
	//  then our karma doesn't change very much.
	if(hit)
		return karma - (100-cth); //chance to miss
	else
		return karma + cth;
}

/**
 * Input:
 *   cth    : chance to hit, 0-100.
 *   karma  : the player's karma rating before attacking
 * Output:
 *   karma  : the player's karma rating after attacking
 *   return : whether or not this attack hit
 */
bool attack(int cth, int& karma)
{
	int rng = rand() % 100;
	bool hit = (rng < revised_cth(cth,karma));

	karma = update_karma(cth,karma,hit);

	return hit;
}