Mutating an item inside of nested loops

Question

I\'m trying to write a program to evenly (or as close to possible) distribute points about the surface of a sphere. I\'m trying to achieve this by placing N points randomly

Answer 1

I've found an answer to my own question

for (point, movement) in points.iter().zip(movements.iter_mut()) {
    *movement = Quaternion::identity();
    for neighbour in &points {
        if neighbour.id == point.id {
            continue;
        }
        let angle = point.pos.angle(&neighbour.pos);
        let axis = point.pos.cross(&neighbour.pos);
        let force = -(1.0/(angle*angle)) * update_amt;
        *movement = (*movement) * Quaternion::angle_axis(angle, axis);
    }
}

By creating a separate vector to hold the movements, rather than having movement be a trait of the point, I can borrow the points vector twice as immutable, and borrow the movements vector once as mutable.

I think a C++ mindset still has me thinking too much in terms of classes, but I may still be wrong about this being a ideal way to go about this sort of pattern in rust. If anyone has a problem with this solution, or just knows a better way to go about it, any suggestions would be great.