public void GetCentroidTest0()
{
Scene scene = new Scene();
Actor actor = new Actor(scene, PolygonFactory.CreateRectangle(0.5f, 3f));
Vector2 centroid = actor.GetCentroid();
foreach (BodyData data in Tree<BodyData>.GetAll(BodyExt.GetData(actor.Body)))
{
data.Body.LocalCenter = actor.Body.GetLocalPoint((Xna.Vector2)centroid);
}
//LocalCenter and centroid should be the same since the actor is on the origin with no rotation.
Assert.IsTrue((Xna.Vector2)actor.Body.LocalCenter == (Xna.Vector2)centroid);
Assert.IsTrue(centroid == new Vector2());
}
public void GetCentroidTest2()
{
Scene scene = new Scene();
scene.Gravity = new Vector2();
Actor actor = new Actor(scene, PolygonFactory.CreateRectangle(0.5f, 3f));
FloatPortal enter = new FloatPortal(scene);
FloatPortal exit = new FloatPortal(scene);
Portal.SetLinked(enter, exit);
enter.SetTransform(new Transform2(new Vector2(0, 1), 1, (float)(Math.PI / 2)));
exit.SetTransform(new Transform2(new Vector2(5, 0), 2));
scene.Step();
Vector2 centroid = actor.GetCentroid();
foreach (BodyData data in Tree<BodyData>.GetAll(BodyExt.GetData(actor.Body)))
{
data.Body.LocalCenter = actor.Body.GetLocalPoint((Xna.Vector2)centroid);
}
Assert.IsTrue((actor.Body.LocalCenter - (Xna.Vector2)centroid).Length() < 0.0001f);
Assert.IsTrue((centroid - new Vector2(0, 1.6959f)).Length < 0.0001f);
}
public void GetCentroidTest4()
{
Scene scene = new Scene();
scene.Gravity = new Vector2();
Actor actor = new Actor(scene, PolygonFactory.CreateRectangle(0.5f, 3f));
Vector2 offset = new Vector2(2, 5);
actor.SetTransform(new Transform2(offset));
FloatPortal enter = new FloatPortal(scene);
FloatPortal exit = new FloatPortal(scene);
Portal.SetLinked(enter, exit);
enter.SetTransform(new Transform2(new Vector2(0, 1) + offset, 1, (float)(Math.PI / 2), true));
exit.SetTransform(new Transform2(new Vector2(5, 0) + offset, 2));
scene.Step();
Vector2 centroid = actor.GetCentroid();
Assert.IsTrue((centroid - new Vector2(0, 1.6959f) - offset).Length < 0.001f);
}