public long GetClosestDegree(Vector2d target)
{
if (Points.Length == 1)
{
return(0);
}
else if (Points.Length <= 0)
{
return(0);
}
target -= Offset;
long closestDegree = 0;
long closestDist = long.MaxValue;
for (int i = 0; i < _axes.Length; i++)
{
Vector2d axis = _axes [i];
Vector2d axisOffset = _points [i];
long min = 0;
long max = (_points [i + 1 < _points.Length ? i + 1 : 0] - axisOffset).Dot(axis);
long projection = (target - axisOffset).Dot(axis);
if (projection < min)
{
projection = min;
}
if (projection > max)
{
projection = max;
}
if (projection >= min && projection <= max)
{
Vector2d point = axis * projection + axisOffset;
long dist = point.Distance(target);
if (dist < closestDist)
{
closestDist = dist;
closestDegree = _cachedPointMags[i] + projection;
}
}
else
{
}
}
closestDegree = closestDegree.Div(TotalLength);
return(closestDegree);
}