public void LineIntersections_GetIntersectionForTwoParallelHorizontalLines()
{
Line horizontal1 = new Line(new PointD(5, 3), new PointD(9, 3));
LineIntersections li = new LineIntersections(horizontal1);
Line horizontal2 = new Line(new PointD(5, 4), new PointD(9, 4));
Assert.IsNull(li.GetIntersection(horizontal2));
}
public void LineIntersection_GetCollisionPointsReturnsEmptyCollectionForNoCollisionPlanes()
{
Line line1 = new Line(new PointD(0, 0), new PointD(4, 4));
LineIntersections li = new LineIntersections(line1);
List <CollisionPlane> collisionPlanes = new List <CollisionPlane>();
Assert.AreEqual(0, li.GetCollisionPoints(collisionPlanes).Count());
}
public void LineIntersections_GetIntersectionForTwoNonIntersectingLines()
{
Line horizontal = new Line(new PointD(5, 3), new PointD(5, 7));
LineIntersections li = new LineIntersections(horizontal);
Line vertical = new Line(new PointD(6, 4), new PointD(6, 7));
Assert.IsNull(li.GetIntersection(vertical));
}
public void LineIntersections_GetIntersectionForTwoInclinedLines()
{
Line line1 = new Line(new PointD(0, 0), new PointD(4, 4));
LineIntersections li = new LineIntersections(line1);
Line line2 = new Line(new PointD(0, 4), new PointD(4, 0));
PointD p = li.GetIntersection(line2);
Assert.AreEqual(2, p.X, 1e-5);
Assert.AreEqual(2, p.Y, 1e-5);
}
public void LineIntersections_GetIntersectionForTwoTouchingOrtogonalLines()
{
Line horizontal = new Line(new PointD(5, 3), new PointD(9, 3));
LineIntersections li = new LineIntersections(horizontal);
Line vertical = new Line(new PointD(9, 3), new PointD(9, 7));
PointD p = li.GetIntersection(vertical);
Assert.AreEqual(9, p.X, 1e-5);
Assert.AreEqual(3, p.Y, 1e-5);
}
public void LineIntersection_GetCollisionPointsReturnsTwoCollisionPointsForTwoPlaneColliding()
{
Line line1 = new Line(new PointD(0, 0), new PointD(4, 4));
LineIntersections li = new LineIntersections(line1);
CollisionPlane plane1 = new CollisionPlane(new PointD(3, 0), new PointD(3, 4));
CollisionPlane plane2 = new CollisionPlane(new PointD(0, 2), new PointD(4, 2));
List <CollisionPlane> collisionPlanes = new List <CollisionPlane> {
plane1, plane2
};
var collisionPoints = li.GetCollisionPoints(collisionPlanes);
Assert.AreEqual(2, collisionPoints.Count());
}
public void LineIntersection_GetCollisionPointsReturnsEmptyListWhenThereIsNoCollidingPlanes()
{
Line line1 = new Line(new PointD(0, 3), new PointD(4, 7));
LineIntersections li = new LineIntersections(line1);
CollisionPlane plane1 = new CollisionPlane(new PointD(3, 0), new PointD(3, 4));
CollisionPlane plane2 = new CollisionPlane(new PointD(0, 2), new PointD(4, 2));
List <CollisionPlane> collisionPlanes = new List <CollisionPlane> {
plane1, plane2
};
var collisionPoints = li.GetCollisionPoints(collisionPlanes);
Assert.AreEqual(0, collisionPoints.Count());
}
public void LineIntersections_GetCollisionPointsReturnsIntersectionPointOnCollisionPlaneForLineEndingOnIt()
{
Line line1 = new Line(new PointD(0, 0), new PointD(200, 200));
LineIntersections li = new LineIntersections(line1);
CollisionPlane plane1 = new CollisionPlane(new PointD(200, 0), new PointD(200, 400));
var collisionPoints = li.GetCollisionPoints(new List <CollisionPlane> {
plane1
});
Assert.AreEqual(1, collisionPoints.Count());
Assert.AreEqual(200, collisionPoints.First().Point.X, 1e-5);
Assert.AreEqual(200, collisionPoints.First().Point.Y, 1e-5);
}
public void LineIntersection_GetCollisionPointsReturnsOneCollisionForProperCollisionPlane()
{
Line line1 = new Line(new PointD(0, 0), new PointD(4, 4));
LineIntersections li = new LineIntersections(line1);
CollisionPlane plane1 = new CollisionPlane(new PointD(3, 0), new PointD(3, 4));
List <CollisionPlane> collisionPlanes = new List <CollisionPlane> {
plane1
};
var collisionPoints = li.GetCollisionPoints(collisionPlanes);
Assert.AreEqual(1, collisionPoints.Count());
Assert.AreEqual(3, collisionPoints.First().Point.X, 1e-5);
Assert.AreEqual(3, collisionPoints.First().Point.Y, 1e-5);
}
public void LineIntersection_GetClosestCollisionPointsReturnsTwoCollisionPointsForTwoPlanesIntersectingInThePointOfCollision()
{
Line line1 = new Line(new PointD(0, 0), new PointD(4, 4));
LineIntersections li = new LineIntersections(line1);
CollisionPlane plane1 = new CollisionPlane(new PointD(3, 0), new PointD(3, 4));
CollisionPlane plane2 = new CollisionPlane(new PointD(0, 3), new PointD(4, 3));
List <CollisionPlane> collisionPlanes = new List <CollisionPlane> {
plane1, plane2
};
var collisionPoints = li.GetClosestCollisionPoints(collisionPlanes);
Assert.AreEqual(2, collisionPoints.Count());
Assert.IsNotNull(collisionPoints.FirstOrDefault(cp => cp.HittableObject == plane1));
Assert.IsNotNull(collisionPoints.FirstOrDefault(cp => cp.HittableObject == plane2));
}
public void LineIntersection_GetClosestCollisionPointsReturnsOneCollisionPointsForTwoPlanesWithDifferentPointsOfCollision()
{
Line line1 = new Line(new PointD(0, 0), new PointD(4, 4));
LineIntersections li = new LineIntersections(line1);
CollisionPlane plane1 = new CollisionPlane(new PointD(3, 0), new PointD(3, 4));
CollisionPlane plane2 = new CollisionPlane(new PointD(0, 2), new PointD(4, 2));
List <CollisionPlane> collisionPlanes = new List <CollisionPlane> {
plane1, plane2
};
var collisionPoints = li.GetClosestCollisionPoints(collisionPlanes);
Assert.AreEqual(1, collisionPoints.Count());
Assert.AreEqual(plane2, collisionPoints.First().HittableObject);
Assert.AreEqual(2, collisionPoints.First().Point.X);
Assert.AreEqual(2, collisionPoints.First().Point.Y);
}
