EntityVector GraphicsWorld::VisibleEntities() const
{
EntityVector ret;
for (HashSet<EntityWeakPtr>::ConstIterator i = visibleEntities_.Begin(); i != visibleEntities_.End(); ++i)
{
if (*i)
ret.Push(i->Lock());
}
return ret;
}
EntityVector Placeable::Grandchildren(Entity *entity) const
{
EntityVector ret;
if (!entity)
return ret;
if (!entity->Component<Placeable>())
return ret;
EntityVector children = entity->Component<Placeable>()->Children();
foreach(const EntityPtr &e, children)
{
EntityVector grandchildren = Grandchildren(e.Get());
ret.Push(grandchildren);
}
EntityVector GraphicsWorld::FrustumQuery(const Urho3D::IntRect &viewrect) const
{
URHO3D_PROFILE(GraphicsWorld_FrustumQuery);
EntityVector ret;
Camera* cameraComp = renderer_->MainCameraComponent();
if (!cameraComp || cameraComp->ParentScene() != scene_)
return ret;
Urho3D::Camera* cam = cameraComp->UrhoCamera();
if (!cam)
return ret;
int width = renderer_->WindowWidth();
int height = renderer_->WindowHeight();
float w = (float)width;
float h = (float)height;
float left = (float)(viewrect.left_) / w, right = (float)(viewrect.right_) / w;
float top = (float)(viewrect.top_) / h, bottom = (float)(viewrect.bottom_) / h;
if (left > right) std::swap(left, right);
if (top > bottom) std::swap(top, bottom);
// don't do selection if box is too small
if ((right - left) * (bottom - top) < 0.0001)
return ret;
Urho3D::Frustum fr;
fr.vertices_[0] = cam->ScreenToWorldPoint(Urho3D::Vector3(right, top, cam->GetNearClip()));
fr.vertices_[1] = cam->ScreenToWorldPoint(Urho3D::Vector3(right, bottom, cam->GetNearClip()));
fr.vertices_[2] = cam->ScreenToWorldPoint(Urho3D::Vector3(left, bottom, cam->GetNearClip()));
fr.vertices_[3] = cam->ScreenToWorldPoint(Urho3D::Vector3(left, top, cam->GetNearClip()));
fr.vertices_[4] = cam->ScreenToWorldPoint(Urho3D::Vector3(right, top, cam->GetFarClip()));
fr.vertices_[5] = cam->ScreenToWorldPoint(Urho3D::Vector3(right, bottom, cam->GetFarClip()));
fr.vertices_[6] = cam->ScreenToWorldPoint(Urho3D::Vector3(left, bottom, cam->GetFarClip()));
fr.vertices_[7] = cam->ScreenToWorldPoint(Urho3D::Vector3(left, top, cam->GetFarClip()));
fr.UpdatePlanes();
Urho3D::PODVector<Urho3D::Drawable*> result;
Urho3D::FrustumOctreeQuery query(result, fr, Urho3D::DRAWABLE_GEOMETRY);
urhoScene_->GetComponent<Urho3D::Octree>()->GetDrawables(query);
for (Urho3D::PODVector<Urho3D::Drawable*>::ConstIterator i = result.Begin(); i != result.End(); ++i)
{
Entity* entity = static_cast<Entity*>((*i)->GetNode()->GetVar(entityLink).GetPtr());
if (entity)
ret.Push(EntityPtr(entity));
}
return ret;
}