public void Intersect()
{
var r1 = Rect2D.FromExtents(0, 0, 10, 10);
var r2 = Rect2D.FromExtents(5, 5, 10, 10);
var r3 = Rect2D.FromExtents(100, 100, 5, 5);
Assert.IsTrue(r1.Intersect(r2));
Assert.IsFalse(r1.Intersect(r3));
}
public void Add()
{
var r1 = Rect2D.FromExtents(0, 0, 10, 10);
var r2 = Rect2D.FromExtents(1, 1, 1, 1);
r1 += r2;
Assert.AreEqual(new int2(1, 1), r1.Position);
Assert.AreEqual(new int2(11, 11), r1.Max);
}
public void RectInitialization()
{
Rect2D r = Rect2D.FromExtents(0, 0, 10, 10);
Assert.AreEqual(new int2(0, 0), r.Position);
Assert.AreEqual(new int2(10, 10), r.Max);
Assert.AreEqual(new int2(10, 10), r.Size);
r = Rect2D.FromPositionSize(5, 5, 5, 5);
Assert.IsFalse(r.Intersect(new int2(0, 0)));
Assert.AreEqual(new int2(5, 5), r.Position);
Assert.AreEqual(new int2(5, 5), r.Size);
}
public void IEnumerableVisitsExpectedPoints()
{
int size = 10;
Rect2D r = Rect2D.FromExtents(0, 0, size, size);
var points =
(from p in r
select p).ToList();
for (int x = 0; x < size; ++x)
{
for (int y = 0; y < size; ++y)
{
Assert.Contains(new int2(x, y), points);
}
}
Assert.AreEqual(size * size, points.Count);
}
public void Center()
{
var r1 = Rect2D.FromExtents(0, 0, 10, 10);
Assert.AreEqual(new int2(5, 5), r1.Center);
}