///-------------------------------------------------------------------------------------------------
/// <summary> Set the magnitude of the given vector. </summary>
///
/// <remarks> Jan Tamis, 29-8-2017. </remarks>
///
/// <param name="target"> Target for the. </param>
/// <param name="len"> The set magnitude. </param>
///
/// <returns> A PVector. </returns>
public PVector setMag(PVector target, double len)
{
target.normalize();
target.mult(len);
set(target);
return(this);
}
public void update()
{
vel.add(acc);
pos.add(vel);
acc.mult(0);
}