v3s16 rand_ortho_dir(PseudoRandom &random)
{
if (random.next() % 2 == 0)
return random.next() % 2 ? v3s16(-1, 0, 0) : v3s16(1, 0, 0);
else
return random.next() % 2 ? v3s16(0, 0, -1) : v3s16(0, 0, 1);
}
v3s16 rand_ortho_dir(PseudoRandom &random, bool diagonal_dirs)
{
// Make diagonal directions somewhat rare
if (diagonal_dirs && (random.next() % 4 == 0)) {
v3s16 dir;
int trycount = 0;
do {
trycount++;
dir = v3s16(random.next() % 3 - 1, 0, random.next() % 3 - 1);
} while ((dir.X == 0 && dir.Z == 0) && trycount < 10);
return dir;
} else {
if (random.next() % 2 == 0)
return random.next() % 2 ? v3s16(-1, 0, 0) : v3s16(1, 0, 0);
else
return random.next() % 2 ? v3s16(0, 0, -1) : v3s16(0, 0, 1);
}
}
