public void Point()
{
var myCurve = new CubicBezierCurve2D(
new Vector2(-4, -4),
new Vector2(-2, 4),
new Vector2(2, -4),
new Vector2(4, 4)
);
myCurve.Point(0.5f).Should().BeEquivalentTo(new Vector2(0, 0));
myCurve.Point(0.25f).Should().BeEquivalentTo(new Vector2(-2.1875f, -0.5f));
myCurve.Point(0.75f).Should().BeEquivalentTo(new Vector2(2.1875f, 0.5f));
myCurve.Invoking(x => x.Point(1.5f)).Should().Throw <ArgumentException>();
}
public void PointNormalized()
{
var p0 = new Vector2(-4, -4);
var p1 = new Vector2(-2, 4);
var p2 = new Vector2(2, -4);
var p3 = new Vector2(4, 4);
CubicBezierCurve2D.Point(p0, p1, p2, p3, 3, 2, 4).Should().BeEquivalentTo(new Vector2(0, 0));
CubicBezierCurve2D.Point(p0, p1, p2, p3, 2, 1, 5).Should().BeEquivalentTo(new Vector2(-2.1875f, -0.5f));
CubicBezierCurve2D.Point(p0, p1, p2, p3, 11, 2, 14).Should().BeEquivalentTo(new Vector2(2.1875f, 0.5f));
Action invalidTime = () => CubicBezierCurve2D.Point(p0, p1, p2, p3, 15, 2, 5);
invalidTime.Should().Throw <ArgumentException>();
}