Function magnetic_monopole::exec

pub fn exec<'a>(
    count: u32, 
    velocity: &'a mut Vec3, 
    position: &'a mut Vec3, 
    mass: f32, 
    charge: f32, 
    intensity: f32, 
    time_ms: f32, 
    _print: bool
) -> (&'a mut Vec3, &'a mut Vec3, Vec3, Vec3)