public void NormalizeTest()
{
var vector = new KtVector2D(Degrees.Create(45)) * 20;
vector.Normalize();
Assert.AreEqual(vector, new KtVector2D(Math.Sqrt(2) / 2, Math.Sqrt(2) / 2));
}
public void AngleBetweenTest()
{
var vector = new KtVector2D(3, 2);
var vector2 = new KtVector2D(2, 3);
Assert.AreEqual(vector.AngleBetween(vector2), Degrees.Create(-(Math.Atan2(2, 3) - Math.Atan2(3, 2)) * 180 / Math.PI));
Assert.AreEqual(vector2.AngleBetween(vector), Degrees.Create((Math.Atan2(2, 3) - Math.Atan2(3, 2)) * 180 / Math.PI));
}
public void RotateTest()
{
var vector = new KtVector2D(1, 0);
vector.Rotate(Degrees.Create(45));
Assert.AreEqual(vector, new KtVector2D(Math.Sqrt(2) / 2, Math.Sqrt(2) / 2));
var vector2 = new KtVector2D(-1, 1);
vector2.Rotate(Degrees.Create(-135));
Assert.AreEqual(vector2, new KtVector2D(Math.Sqrt(2), 0));
}
public void CloneTest()
{
var vector = new KtVector2D(3, 2);
Assert.AreEqual(vector.Clone(), vector);
}
public void CrossTest()
{
var vector = new KtVector2D(3, 2);
Assert.AreEqual(vector.Cross(vector), 0);
}
public void DotTest()
{
var vector = new KtVector2D(3, 2);
Assert.AreEqual(vector.Dot(vector), (3 * 3) + (2 * 2));
}
public void DirectionTest()
{
var vector = new KtVector2D(3, 2);
Assert.AreEqual(vector.Direction, Degrees.Create(Math.Atan2(2, 3) * 180 / Math.PI));
}
public void MagnitudeTest()
{
var vector = new KtVector2D(3, 2);
Assert.AreEqual(vector.Magnitude, Math.Sqrt((3 * 3) + (2 * 2)));
}
public void KtVector2DTest1()
{
var vector = new KtVector2D(Degrees.Create(45));
Assert.AreEqual(vector, new KtVector2D(Math.Sqrt(2) / 2, Math.Sqrt(2) / 2));
}
public void KtVector2DTest()
{
var vector = new KtVector2D(2, 4);
Assert.AreEqual(vector, new KtVector2D(2, 4));
}
public void ToKtPoint2DTest()
{
var vector = new KtVector2D(3, 2);
Assert.AreEqual(vector.ToKtPoint2D(), new KtPoint2D(3, 2));
}
public KtRay2D(KtPoint2D start, KtVector2D direction) : this(start, start + direction)
{
}
