uint8_t MarchingCubes::IndexMirrorZ(const uint8_t index) {
uint8_t new_index = 0;
for (int i = 0; i < 8; i++) {
const uint8_t single_index = index & (1u << i);
if (single_index) {
Vector3 v = corners_as_vectors_[i];
v.Translate(-0.5f, -0.5f, 0.5f)->MirrorZ()->Translate(0.5f, 0.5f, -0.5f);
new_index = new_index | (1u << ConvertVectorToCorner(v));
}
}
return new_index;
}
uint8_t MarchingCubes::IndexRotateZ(const uint8_t index, const int degrees) {
if (degrees == 0 || degrees % 360 == 0) {
return index;
}
if (degrees % 90) {
return -1;
}
uint8_t new_index = 0;
for (int i = 0; i < 8; i++) {
const uint8_t single_index = index & (1u << i);
if (single_index) {
Vector3 v = corners_as_vectors_[i];
v.Translate(-0.5f, -0.5f, 0.5f)->RotateZ(degrees)->Translate(0.5f, 0.5f,
-0.5f);
new_index = new_index | (1u << ConvertVectorToCorner(v));
}
}
return new_index;
}