public void VelocityNormalized()
{
var myCurve = new CubicBezierCurve2D(
new Vector2(-4, -4),
new Vector2(-2, 4),
new Vector2(2, -4),
new Vector2(4, 4)
);
myCurve.Velocity(3, 2, 4).Should().BeEquivalentTo(new Vector2(9, 0));
myCurve.Velocity(2, 1, 5).Should().BeEquivalentTo(new Vector2(8.25f, 6f));
myCurve.Velocity(11, 2, 14).Should().BeEquivalentTo(new Vector2(8.25f, 6f));
myCurve.Invoking(x => x.Velocity(15, 2, 5)).Should().Throw <ArgumentException>();
}
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 Velocity()
{
var myCurve = new CubicBezierCurve2D(
new Vector2(-4, -4),
new Vector2(-2, 4),
new Vector2(2, -4),
new Vector2(4, 4)
);
myCurve.Velocity(0.5f).Should().BeEquivalentTo(new Vector2(9, 0));
myCurve.Velocity(0.25f).Should().BeEquivalentTo(new Vector2(8.25f, 6f));
myCurve.Velocity(0.75f).Should().BeEquivalentTo(new Vector2(8.25f, 6f));
myCurve.Invoking(x => x.Velocity(1.5f)).Should().Throw <ArgumentException>();
}