osu_human.c

// TODO: This function is retarded, fix it and add actual humanization.
void humanize_hitpoints(int total, hitpoint **points, int level)
{
	if (!level) {
		return;
	}

	int i, offset;
	hitpoint *p = NULL;
	for (i = 0; i < total; i++) {
		p = *points + i;

		// [0, level]
		offset = generate_number(level, RNG_ROUNDS, RNG_BOUNDARY);
		
		// [-(level / 2), (level / 2)]
		offset -= (level / 2);

		p->end_time += offset;
		p->start_time += offset;
	}
}

/**
 * Returns a randomly generated number in the range of [0, range], while
 * attemting to constrain it outside of a bound(ary) given in percent (]0, 1[),
 * in a given number of rounds.
 */
int generate_number(int range, int rounds, float bound)
{
	int rn;
	float minr = 0.5 - (bound / 2);
	float maxr = 0.5 + (bound / 2);

	rn = rand() % range;

	for (int i = 0; i < rounds; i++) {
		bool in = rn > (range * minr) && rn < (range * maxr);

		rn += (in ? (rand() % (int)(range * minr)) : 0)
			* (rn < (range * 0.5) ? -1 : 1);
	}

	return rn;
}