Function magnetic_monopole::exec_return

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