public static float DistanceBetweenPointAndLineSegment(ref FVector2 point, ref FVector2 lineEndPoint1,
ref FVector2 lineEndPoint2)
{
FVector2 v = FVector2.Subtract(lineEndPoint2, lineEndPoint1);
FVector2 w = FVector2.Subtract(point, lineEndPoint1);
float c1 = FVector2.Dot(w, v);
if (c1 <= 0)
{
return(DistanceBetweenPointAndPoint(ref point, ref lineEndPoint1));
}
float c2 = FVector2.Dot(v, v);
if (c2 <= c1)
{
return(DistanceBetweenPointAndPoint(ref point, ref lineEndPoint2));
}
float b = c1 / c2;
FVector2 pointOnLine = FVector2.Add(lineEndPoint1, FVector2.Multiply(v, b));
return(DistanceBetweenPointAndPoint(ref point, ref pointOnLine));
}
public static float DistanceBetweenPointAndPoint(ref FVector2 point1, ref FVector2 point2)
{
FVector2 v;
FVector2.Subtract(ref point1, ref point2, out v);
return(v.Length());
}