public void Lerp()
{
for (int centerAngle = 0; centerAngle < 360; centerAngle += 10)
{
Vector2 center = Geometry.PointOnCircle2(100, centerAngle);
for (int radius = 1; radius < 102; radius += 10)
{
var circleA = new Circle2(center, radius);
var circleB = new Circle2(-center, -radius);
Assert.AreEqual(circleA, Circle2.Lerp(circleA, circleB, -1));
Assert.AreEqual(circleA, Circle2.Lerp(circleA, circleB, 0));
Assert.AreEqual(new Circle2(), Circle2.Lerp(circleA, circleB, 0.5f));
Assert.AreEqual(circleB, Circle2.Lerp(circleA, circleB, 1));
Assert.AreEqual(circleB, Circle2.Lerp(circleA, circleB, 2));
}
}
}