public void GetLocalMassDataTest2()
{
Scene scene = new Scene();
scene.Gravity = new Vector2();
Actor actor = new Actor(scene, PolygonFactory.CreateRectangle(4, 1));
FloatPortal p0 = new FloatPortal(scene);
FloatPortal p1 = new FloatPortal(scene);
Portal.SetLinked(p0, p1);
p0.SetTransform(new Transform2(new Vector2(1, 0)));
p1.SetTransform(new Transform2(new Vector2(50, 0)));
FloatPortal p2 = new FloatPortal(scene);
FloatPortal p3 = new FloatPortal(scene);
Portal.SetLinked(p2, p3);
p2.SetTransform(new Transform2(new Vector2(-1, 0)));
p3.SetTransform(new Transform2(new Vector2(-50, 0)));
scene.Step();
MassData result = GetLocalMassData(actor.Body);
Assert.AreEqual(actor.GetMass() / 2.0f, result.Mass, Delta);
Assert.IsTrue((new Vector2() - result.Centroid).Length < Delta);
}
public void GetLocalMassDataTest0()
{
Scene scene = new Scene();
scene.Gravity = new Vector2();
Actor actor = new Actor(scene, PolygonFactory.CreateRectangle(4, 1));
MassData result = GetLocalMassData(actor.Body);
Assert.AreEqual(actor.GetMass(), result.Mass);
Assert.AreEqual(new Vector2(), result.Centroid);
}
public void GetLocalMassDataTest1()
{
Scene scene = new Scene();
scene.Gravity = new Vector2();
Actor actor = new Actor(scene, PolygonFactory.CreateRectangle(4, 1));
FloatPortal enter = new FloatPortal(scene);
FloatPortal exit = new FloatPortal(scene);
Portal.SetLinked(enter, exit);
enter.SetTransform(new Transform2(new Vector2(1, 0)));
exit.SetTransform(new Transform2(new Vector2(50, 0)));
scene.Step();
MassData result = GetLocalMassData(actor.Body);
Assert.AreEqual(actor.GetMass() * 3.0f / 4.0f, result.Mass, Delta);
Assert.IsTrue((new Vector2(-0.5f, 0) - result.Centroid).Length < Delta);
}