/// <summary>
/// Relative movement over a timespawn
/// Low tolerance, but movement has to be constant
/// </summary>
/// <param name="steady">The reference joint</param>
/// <param name="moving">The joint to get the direction from</param>
/// <param name="duration">Timespawn in frames</param>
/// <returns>Enumerable of the directions</returns>
public IEnumerable <Direction> GetSteadyRelativeMovement(JointType steady, JointType moving, int duration)
{
List <SkeletonPoint> from = new List <SkeletonPoint>(), to = new List <SkeletonPoint>();
if (duration < 1)
{
throw new ArgumentException("Duration must be at least 1");
}
for (int i = 0; i < duration && HasSkeleton(i); i++)
{
to.Add(SkeletonMath.SubstractPoints(person.GetLastSkeleton(i).GetPosition(moving), person.GetLastSkeleton(i).GetPosition(steady)));
from.Add(SkeletonMath.SubstractPoints(person.GetLastSkeleton(i + 1).GetPosition(moving), person.GetLastSkeleton(i + 1).GetPosition(steady)));
}
return(SkeletonMath.SteadyDirectionTo(from, to));
}
/// <summary>
/// The relative position over a timespawn
/// Low tolerance, but the position has to be constant
/// </summary>
/// <param name="from">Source of the direction</param>
/// <param name="to">target of the direction</param>
/// <param name="duration">Timespawn in frames</param>
/// <returns>Enumerable of the directions</returns>
public IEnumerable <Direction> GetSteadyPosition(JointType from, JointType to, int duration)
{
List <SkeletonPoint> origin = new List <SkeletonPoint>(), target = new List <SkeletonPoint>();
if (duration < 0)
{
throw new ArgumentException("Duration must be at least 1");
}
for (int i = 0; i <= duration && HasSkeleton(i); i++)
{
target.Add(person.GetLastSkeleton(i).GetPosition(to));
origin.Add(person.GetLastSkeleton(i).GetPosition(from));
}
return(SkeletonMath.SteadyDirectionTo(origin, target));
}
/// <summary>
/// Direction of a joint over a span of frames
/// Low tolerance, but movement has to be constant
/// </summary>
/// <param name="type">the joint</param>
/// <param name="duration">number of frames</param>
/// <returns>Enumerable of the directions</returns>
public IEnumerable <Direction> GetSteadyAbsoluteMovement(JointType type, int duration)
{
List <SkeletonPoint> from = new List <SkeletonPoint>(), to = new List <SkeletonPoint>();
if (duration < 1)
{
throw new ArgumentException("Duration must be at least 1");
}
for (int i = 0; i < duration && HasSkeleton(i); i++)
{
to.Add(person.GetLastSkeleton(i).GetPosition(type));
from.Add(person.GetLastSkeleton(i + 1).GetPosition(type));
}
return(SkeletonMath.SteadyDirectionTo(from, to));
}