public void V2_FromPolar()
{
Vector2 a = Vector2X.FromPolar(1, MathF.PI * 0.5f);
Vector2 b = Vector2X.FromPolar(1, MathF.PI * 1.0f);
Vector2 c = Vector2X.FromPolar(1, MathF.PI * 1.5f);
Vector2 d = Vector2X.FromPolar(1, MathF.PI * 2.0f);
Vector2X.Equals(a, Vector2.UnitY, .000001f);
Vector2X.Equals(b, Vector2.UnitX, .000001f);
Vector2X.Equals(c, Vector2.UnitY, .000001f);
Vector2X.Equals(d, Vector2.UnitX, .000001f);
}
private static Polygon RegularShape(float angle, int pointCount, float size)
{
float step = 2 * (float)Math.PI / pointCount;
Polygon result = new Polygon();
for (int i = 0; i < pointCount; i++)
{
result.Add(Vector2X.FromPolar(size, angle));
angle += step;
}
return(result);
}
/// <summary> /// Gets the next random unit vector. /// </summary> /// <param name="random"></param> /// <param name=""></param> /// <returns></returns> public static Vector2 NextUnitVector(this IRandom random) => Vector2X.FromPolar(1, random.NextAngle());