worldspawn/plugins/entity/doom3group.cpp

/*
   Copyright (C) 2001-2006, William Joseph.
   All Rights Reserved.

   This file is part of GtkRadiant.

   GtkRadiant is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   GtkRadiant is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

///\file
///\brief Represents any Doom3 entity which does not have a fixed size specified in its entity-definition (e.g. func_static).
///
/// This entity behaves as a group only when the "model" key is empty or is the same as the "name" key. Otherwise it behaves as a model.
/// When behaving as a group, the "origin" key is the translation to be applied to all brushes (not patches) grouped under this entity.
/// When behaving as a model, the "origin", "angle" and "rotation" keys directly control the entity's local-to-parent transform.
/// When either the "curve_Nurbs" or "curve_CatmullRomSpline" keys define a curve, the curve is rendered and can be edited.

#include "doom3group.h"

#include "cullable.h"
#include "renderable.h"
#include "editable.h"
#include "modelskin.h"

#include "selectionlib.h"
#include "instancelib.h"
#include "transformlib.h"
#include "traverselib.h"
#include "entitylib.h"
#include "render.h"
#include "eclasslib.h"
#include "stream/stringstream.h"
#include "pivot.h"

#include "targetable.h"
#include "origin.h"
#include "angle.h"
#include "rotation.h"
#include "model.h"
#include "filters.h"
#include "namedentity.h"
#include "keyobservers.h"
#include "namekeys.h"
#include "curve.h"
#include "modelskinkey.h"

#include "entity.h"

inline void
PointVertexArray_testSelect(PointVertex *first, std::size_t count, SelectionTest &test, SelectionIntersection &best)
{
    test.TestLineStrip(
            VertexPointer(
                    reinterpret_cast<VertexPointer::pointer>( &first->vertex ),
                    sizeof(PointVertex)
            ),
            IndexPointer::index_type(count),
            best
    );
}

class Doom3Group :
        public Bounded,
        public Snappable {
    EntityKeyValues m_entity;
    KeyObserverMap m_keyObservers;
    TraversableNodeSet m_traverse;
    MatrixTransform m_transform;

    SingletonModel m_model;
    OriginKey m_originKey;
    Vector3 m_origin;

    RotationKey m_rotationKey;
    Float9 m_rotation;

    ClassnameFilter m_filter;
    NamedEntity m_named;
    NameKeys m_nameKeys;
    TraversableObserverPairRelay m_traverseObservers;
    Doom3GroupOrigin m_funcStaticOrigin;
    RenderablePivot m_renderOrigin;
    RenderableNamedEntity m_renderName;
    mutable Vector3 m_name_origin;
    ModelSkinKey m_skin;

public:
    NURBSCurve m_curveNURBS;
    SignalHandlerId m_curveNURBSChanged;
    CatmullRomSpline m_curveCatmullRom;
    SignalHandlerId m_curveCatmullRomChanged;
private:
    mutable AABB m_curveBounds;

    Callback<void()> m_transformChanged;
    Callback<void()> m_evaluateTransform;

    CopiedString m_name;
    CopiedString m_modelKey;
    bool m_isModel;

    scene::Traversable *m_traversable;

    void construct()
    {
        default_rotation(m_rotation);

        m_keyObservers.insert("classname", ClassnameFilter::ClassnameChangedCaller(m_filter));
        m_keyObservers.insert(Static<KeyIsName>::instance().m_nameKey, NamedEntity::IdentifierChangedCaller(m_named));
        m_keyObservers.insert("model", Doom3Group::ModelChangedCaller(*this));
        m_keyObservers.insert("origin", OriginKey::OriginChangedCaller(m_originKey));
        m_keyObservers.insert("angle", RotationKey::AngleChangedCaller(m_rotationKey));
        m_keyObservers.insert("rotation", RotationKey::RotationChangedCaller(m_rotationKey));
        m_keyObservers.insert("name", NameChangedCaller(*this));
        m_keyObservers.insert(curve_Nurbs, NURBSCurve::CurveChangedCaller(m_curveNURBS));
        m_keyObservers.insert(curve_CatmullRomSpline, CatmullRomSpline::CurveChangedCaller(m_curveCatmullRom));
        m_keyObservers.insert("skin", ModelSkinKey::SkinChangedCaller(m_skin));

        m_traverseObservers.attach(m_funcStaticOrigin);
        m_isModel = false;
        m_nameKeys.setKeyIsName(keyIsNameDoom3Doom3Group);
        attachTraverse();

        m_entity.attach(m_keyObservers);
    }

    void destroy()
    {
        m_entity.detach(m_keyObservers);

        if (isModel()) {
            detachModel();
        } else {
            detachTraverse();
        }

        m_traverseObservers.detach(m_funcStaticOrigin);
    }

    void attachModel()
    {
        m_traversable = &m_model.getTraversable();
        m_model.attach(&m_traverseObservers);
    }

    void detachModel()
    {
        m_traversable = 0;
        m_model.detach(&m_traverseObservers);
    }

    void attachTraverse()
    {
        m_traversable = &m_traverse;
        m_traverse.attach(&m_traverseObservers);
    }

    void detachTraverse()
    {
        m_traversable = 0;
        m_traverse.detach(&m_traverseObservers);
    }

    bool isModel() const
    {
        return m_isModel;
    }

    void setIsModel(bool newValue)
    {
        if (newValue && !m_isModel) {
            detachTraverse();
            attachModel();

            m_nameKeys.setKeyIsName(Static<KeyIsName>::instance().m_keyIsName);
            m_model.modelChanged(m_modelKey.c_str());
        } else if (!newValue && m_isModel) {
            detachModel();
            attachTraverse();

            m_nameKeys.setKeyIsName(keyIsNameDoom3Doom3Group);
        }
        m_isModel = newValue;
        updateTransform();
    }

    void updateIsModel()
    {
        setIsModel(!string_equal(m_modelKey.c_str(), m_name.c_str()));
    }

// vc 2k5 compiler fix
#if _MSC_VER >= 1400
    public:
#endif

    void nameChanged(const char *value)
    {
        m_name = value;
        updateIsModel();
    }

    typedef MemberCaller<Doom3Group, void(const char *), &Doom3Group::nameChanged> NameChangedCaller;

    void modelChanged(const char *value)
    {
        m_modelKey = value;
        updateIsModel();
        if (isModel()) {
            m_model.modelChanged(value);
        } else {
            m_model.modelChanged("");
        }
    }

    typedef MemberCaller<Doom3Group, void(const char *), &Doom3Group::modelChanged> ModelChangedCaller;

    void updateTransform()
    {
        m_transform.localToParent() = g_matrix4_identity;
        if (isModel()) {
            matrix4_translate_by_vec3(m_transform.localToParent(), m_origin);
            matrix4_multiply_by_matrix4(m_transform.localToParent(), rotation_toMatrix(m_rotation));
        }
        m_transformChanged();
        if (!isModel()) {
            m_funcStaticOrigin.originChanged();
        }
    }

    typedef MemberCaller<Doom3Group, void(), &Doom3Group::updateTransform> UpdateTransformCaller;

    void originChanged()
    {
        m_origin = m_originKey.m_origin;
        updateTransform();
    }

    typedef MemberCaller<Doom3Group, void(), &Doom3Group::originChanged> OriginChangedCaller;

    void rotationChanged()
    {
        rotation_assign(m_rotation, m_rotationKey.m_rotation);
        updateTransform();
    }

    typedef MemberCaller<Doom3Group, void(), &Doom3Group::rotationChanged> RotationChangedCaller;

    void skinChanged()
    {
        if (isModel()) {
            scene::Node *node = m_model.getNode();
            if (node != 0) {
                Node_modelSkinChanged(*node);
            }
        }
    }

    typedef MemberCaller<Doom3Group, void(), &Doom3Group::skinChanged> SkinChangedCaller;

public:
    Doom3Group(EntityClass *eclass, scene::Node &node, const Callback<void()> &transformChanged,
               const Callback<void()> &boundsChanged, const Callback<void()> &evaluateTransform) :
            m_entity(eclass),
            m_originKey(OriginChangedCaller(*this)),
            m_origin(ORIGINKEY_IDENTITY),
            m_rotationKey(RotationChangedCaller(*this)),
            m_filter(m_entity, node),
            m_named(m_entity),
            m_nameKeys(m_entity),
            m_funcStaticOrigin(m_traverse, m_origin),
            m_renderName(m_named, m_name_origin),
            m_name_origin(g_vector3_identity),
            m_skin(SkinChangedCaller(*this)),
            m_curveNURBS(boundsChanged),
            m_curveCatmullRom(boundsChanged),
            m_transformChanged(transformChanged),
            m_evaluateTransform(evaluateTransform),
            m_traversable(0)
    {
        construct();
    }

    Doom3Group(const Doom3Group &other, scene::Node &node, const Callback<void()> &transformChanged,
               const Callback<void()> &boundsChanged, const Callback<void()> &evaluateTransform) :
            m_entity(other.m_entity),
            m_originKey(OriginChangedCaller(*this)),
            m_origin(ORIGINKEY_IDENTITY),
            m_rotationKey(RotationChangedCaller(*this)),
            m_filter(m_entity, node),
            m_named(m_entity),
            m_nameKeys(m_entity),
            m_funcStaticOrigin(m_traverse, m_origin),
            m_renderName(m_named, g_vector3_identity),
            m_skin(SkinChangedCaller(*this)),
            m_curveNURBS(boundsChanged),
            m_curveCatmullRom(boundsChanged),
            m_transformChanged(transformChanged),
            m_evaluateTransform(evaluateTransform),
            m_traversable(0)
    {
        construct();
    }

    ~Doom3Group()
    {
        destroy();
    }

    InstanceCounter m_instanceCounter;

    void instanceAttach(const scene::Path &path)
    {
        if (++m_instanceCounter.m_count == 1) {
            m_filter.instanceAttach();
            m_entity.instanceAttach(path_find_mapfile(path.begin(), path.end()));
            m_traverse.instanceAttach(path_find_mapfile(path.begin(), path.end()));

            m_funcStaticOrigin.enable();
        }
    }

    void instanceDetach(const scene::Path &path)
    {
        if (--m_instanceCounter.m_count == 0) {
            m_funcStaticOrigin.disable();

            m_traverse.instanceDetach(path_find_mapfile(path.begin(), path.end()));
            m_entity.instanceDetach(path_find_mapfile(path.begin(), path.end()));
            m_filter.instanceDetach();
        }
    }

    EntityKeyValues &getEntity()
    {
        return m_entity;
    }

    const EntityKeyValues &getEntity() const
    {
        return m_entity;
    }

    scene::Traversable &getTraversable()
    {
        return *m_traversable;
    }

    Namespaced &getNamespaced()
    {
        return m_nameKeys;
    }

    Nameable &getNameable()
    {
        return m_named;
    }

    TransformNode &getTransformNode()
    {
        return m_transform;
    }

    ModelSkin &getModelSkin()
    {
        return m_skin.get();
    }

    void attach(scene::Traversable::Observer *observer)
    {
        m_traverseObservers.attach(*observer);
    }

    void detach(scene::Traversable::Observer *observer)
    {
        m_traverseObservers.detach(*observer);
    }

    const AABB &localAABB() const
    {
        m_curveBounds = m_curveNURBS.m_bounds;
        aabb_extend_by_aabb_safe(m_curveBounds, m_curveCatmullRom.m_bounds);
        return m_curveBounds;
    }

    void renderSolid(Renderer &renderer, const VolumeTest &volume, const Matrix4 &localToWorld, bool selected) const
    {
        if (isModel() && selected) {
            m_renderOrigin.render(renderer, volume, localToWorld);
        }

        renderer.SetState(m_entity.getEntityClass().m_state_wire, Renderer::eWireframeOnly);
        renderer.SetState(m_entity.getEntityClass().m_state_wire, Renderer::eFullMaterials);

        if (!m_curveNURBS.m_renderCurve.m_vertices.empty()) {
            renderer.addRenderable(m_curveNURBS.m_renderCurve, localToWorld);
        }
        if (!m_curveCatmullRom.m_renderCurve.m_vertices.empty()) {
            renderer.addRenderable(m_curveCatmullRom.m_renderCurve, localToWorld);
        }
    }

    void renderWireframe(Renderer &renderer, const VolumeTest &volume, const Matrix4 &localToWorld, bool selected,
                         const AABB &childBounds) const
    {
        renderSolid(renderer, volume, localToWorld, selected);

        if (g_showNames) {
            // draw models as usual
            if (!isModel()) {
                // don't draw the name for worldspawn
                if (!strcmp(m_entity.getEntityClass().name(), "worldspawn")) {
                    return;
                }

                // place name in the middle of the "children cloud"
                m_name_origin = childBounds.origin;
            }

            renderer.addRenderable(m_renderName, localToWorld);
        }
    }

    void testSelect(Selector &selector, SelectionTest &test, SelectionIntersection &best)
    {
        PointVertexArray_testSelect(&m_curveNURBS.m_renderCurve.m_vertices[0],
                                    m_curveNURBS.m_renderCurve.m_vertices.size(), test, best);
        PointVertexArray_testSelect(&m_curveCatmullRom.m_renderCurve.m_vertices[0],
                                    m_curveCatmullRom.m_renderCurve.m_vertices.size(), test, best);
    }

    void translate(const Vector3 &translation)
    {
        m_origin = origin_translated(m_origin, translation);
    }

    void rotate(const Quaternion &rotation)
    {
        rotation_rotate(m_rotation, rotation);
    }

    void snapto(float snap)
    {
        m_originKey.m_origin = origin_snapped(m_originKey.m_origin, snap);
        m_originKey.write(&m_entity);
    }

    void revertTransform()
    {
        m_origin = m_originKey.m_origin;
        rotation_assign(m_rotation, m_rotationKey.m_rotation);
        m_curveNURBS.m_controlPointsTransformed = m_curveNURBS.m_controlPoints;
        m_curveCatmullRom.m_controlPointsTransformed = m_curveCatmullRom.m_controlPoints;
    }

    void freezeTransform()
    {
        m_originKey.m_origin = m_origin;
        m_originKey.write(&m_entity);
        rotation_assign(m_rotationKey.m_rotation, m_rotation);
        m_rotationKey.write(&m_entity);
        m_curveNURBS.m_controlPoints = m_curveNURBS.m_controlPointsTransformed;
        ControlPoints_write(m_curveNURBS.m_controlPoints, curve_Nurbs, m_entity);
        m_curveCatmullRom.m_controlPoints = m_curveCatmullRom.m_controlPointsTransformed;
        ControlPoints_write(m_curveCatmullRom.m_controlPoints, curve_CatmullRomSpline, m_entity);
    }

    void transformChanged()
    {
        revertTransform();
        m_evaluateTransform();
        updateTransform();
        m_curveNURBS.curveChanged();
        m_curveCatmullRom.curveChanged();
    }

    typedef MemberCaller<Doom3Group, void(), &Doom3Group::transformChanged> TransformChangedCaller;
};

class Doom3GroupInstance :
        public TargetableInstance,
        public TransformModifier,
        public Renderable,
        public SelectionTestable,
        public ComponentSelectionTestable,
        public ComponentEditable,
        public ComponentSnappable {
    class TypeCasts {
        InstanceTypeCastTable m_casts;
    public:
        TypeCasts()
        {
            m_casts = TargetableInstance::StaticTypeCasts::instance().get();
            InstanceContainedCast<Doom3GroupInstance, Bounded>::install(m_casts);
            InstanceStaticCast<Doom3GroupInstance, Renderable>::install(m_casts);
            InstanceStaticCast<Doom3GroupInstance, SelectionTestable>::install(m_casts);
            InstanceStaticCast<Doom3GroupInstance, ComponentSelectionTestable>::install(m_casts);
            InstanceStaticCast<Doom3GroupInstance, ComponentEditable>::install(m_casts);
            InstanceStaticCast<Doom3GroupInstance, ComponentSnappable>::install(m_casts);
            InstanceStaticCast<Doom3GroupInstance, Transformable>::install(m_casts);
            InstanceIdentityCast<Doom3GroupInstance>::install(m_casts);
        }

        InstanceTypeCastTable &get()
        {
            return m_casts;
        }
    };

    Doom3Group &m_contained;
    CurveEdit m_curveNURBS;
    CurveEdit m_curveCatmullRom;
    mutable AABB m_aabb_component;
public:

    typedef LazyStatic<TypeCasts> StaticTypeCasts;


    Bounded &get(NullType<Bounded>)
    {
        return m_contained;
    }

    STRING_CONSTANT(Name, "Doom3GroupInstance");

    Doom3GroupInstance(const scene::Path &path, scene::Instance *parent, Doom3Group &contained) :
            TargetableInstance(path, parent, this, StaticTypeCasts::instance().get(), contained.getEntity(), *this),
            TransformModifier(Doom3Group::TransformChangedCaller(contained), ApplyTransformCaller(*this)),
            m_contained(contained),
            m_curveNURBS(m_contained.m_curveNURBS.m_controlPointsTransformed, SelectionChangedComponentCaller(*this)),
            m_curveCatmullRom(m_contained.m_curveCatmullRom.m_controlPointsTransformed,
                              SelectionChangedComponentCaller(*this))
    {
        m_contained.instanceAttach(Instance::path());
        m_contained.m_curveNURBSChanged = m_contained.m_curveNURBS.connect(CurveEdit::CurveChangedCaller(m_curveNURBS));
        m_contained.m_curveCatmullRomChanged = m_contained.m_curveCatmullRom.connect(
                CurveEdit::CurveChangedCaller(m_curveCatmullRom));

        StaticRenderableConnectionLines::instance().attach(*this);
    }

    ~Doom3GroupInstance()
    {
        StaticRenderableConnectionLines::instance().detach(*this);

        m_contained.m_curveCatmullRom.disconnect(m_contained.m_curveCatmullRomChanged);
        m_contained.m_curveNURBS.disconnect(m_contained.m_curveNURBSChanged);
        m_contained.instanceDetach(Instance::path());
    }

    void renderSolid(Renderer &renderer, const VolumeTest &volume) const
    {
        m_contained.renderSolid(renderer, volume, Instance::localToWorld(), getSelectable().isSelected());

        m_curveNURBS.renderComponentsSelected(renderer, volume, localToWorld());
        m_curveCatmullRom.renderComponentsSelected(renderer, volume, localToWorld());
    }

    void renderWireframe(Renderer &renderer, const VolumeTest &volume) const
    {
        m_contained.renderWireframe(renderer, volume, Instance::localToWorld(), getSelectable().isSelected(),
                                    Instance::childBounds());

        m_curveNURBS.renderComponentsSelected(renderer, volume, localToWorld());
        m_curveCatmullRom.renderComponentsSelected(renderer, volume, localToWorld());
    }

    void renderComponents(Renderer &renderer, const VolumeTest &volume) const
    {
        if (GlobalSelectionSystem().ComponentMode() == SelectionSystem::eVertex) {
            m_curveNURBS.renderComponents(renderer, volume, localToWorld());
            m_curveCatmullRom.renderComponents(renderer, volume, localToWorld());
        }
    }

    void testSelect(Selector &selector, SelectionTest &test)
    {
        test.BeginMesh(localToWorld());
        SelectionIntersection best;

        m_contained.testSelect(selector, test, best);

        if (best.valid()) {
            Selector_add(selector, getSelectable(), best);
        }
    }

    bool isSelectedComponents() const
    {
        return m_curveNURBS.isSelected() || m_curveCatmullRom.isSelected();
    }

    void setSelectedComponents(bool selected, SelectionSystem::EComponentMode mode)
    {
        if (mode == SelectionSystem::eVertex) {
            m_curveNURBS.setSelected(selected);
            m_curveCatmullRom.setSelected(selected);
        }
    }

    void testSelectComponents(Selector &selector, SelectionTest &test, SelectionSystem::EComponentMode mode)
    {
        if (mode == SelectionSystem::eVertex) {
            test.BeginMesh(localToWorld());
            m_curveNURBS.testSelect(selector, test);
            m_curveCatmullRom.testSelect(selector, test);
        }
    }

    void transformComponents(const Matrix4 &matrix)
    {
        if (m_curveNURBS.isSelected()) {
            m_curveNURBS.transform(matrix);
        }
        if (m_curveCatmullRom.isSelected()) {
            m_curveCatmullRom.transform(matrix);
        }
    }

    const AABB &getSelectedComponentsBounds() const
    {
        m_aabb_component = AABB();
        m_curveNURBS.forEachSelected([&](const Vector3 &point) {
            aabb_extend_by_point_safe(m_aabb_component, point);
        });
        m_curveCatmullRom.forEachSelected([&](const Vector3 &point) {
            aabb_extend_by_point_safe(m_aabb_component, point);
        });
        return m_aabb_component;
    }

    void snapComponents(float snap)
    {
        if (m_curveNURBS.isSelected()) {
            m_curveNURBS.snapto(snap);
            m_curveNURBS.write(curve_Nurbs, m_contained.getEntity());
        }
        if (m_curveCatmullRom.isSelected()) {
            m_curveCatmullRom.snapto(snap);
            m_curveCatmullRom.write(curve_CatmullRomSpline, m_contained.getEntity());
        }
    }

    void evaluateTransform()
    {
        if (getType() == TRANSFORM_PRIMITIVE) {
            m_contained.translate(getTranslation());
            m_contained.rotate(getRotation());
        } else {
            transformComponents(calculateTransform());
        }
    }

    void applyTransform()
    {
        m_contained.revertTransform();
        evaluateTransform();
        m_contained.freezeTransform();
    }

    typedef MemberCaller<Doom3GroupInstance, void(), &Doom3GroupInstance::applyTransform> ApplyTransformCaller;

    void selectionChangedComponent(const Selectable &selectable)
    {
        GlobalSelectionSystem().getObserver(SelectionSystem::eComponent)(selectable);
        GlobalSelectionSystem().onComponentSelection(*this, selectable);
    }

    typedef MemberCaller<Doom3GroupInstance, void(
            const Selectable &), &Doom3GroupInstance::selectionChangedComponent> SelectionChangedComponentCaller;
};

class Doom3GroupNode :
        public scene::Node::Symbiot,
        public scene::Instantiable,
        public scene::Cloneable,
        public scene::Traversable::Observer {
    class TypeCasts {
        NodeTypeCastTable m_casts;
    public:
        TypeCasts()
        {
            NodeStaticCast<Doom3GroupNode, scene::Instantiable>::install(m_casts);
            NodeStaticCast<Doom3GroupNode, scene::Cloneable>::install(m_casts);
            NodeContainedCast<Doom3GroupNode, scene::Traversable>::install(m_casts);
            NodeContainedCast<Doom3GroupNode, Snappable>::install(m_casts);
            NodeContainedCast<Doom3GroupNode, TransformNode>::install(m_casts);
            NodeContainedCast<Doom3GroupNode, Entity>::install(m_casts);
            NodeContainedCast<Doom3GroupNode, Nameable>::install(m_casts);
            NodeContainedCast<Doom3GroupNode, Namespaced>::install(m_casts);
            NodeContainedCast<Doom3GroupNode, ModelSkin>::install(m_casts);
        }

        NodeTypeCastTable &get()
        {
            return m_casts;
        }
    };


    scene::Node m_node;
    InstanceSet m_instances;
    Doom3Group m_contained;

    void construct()
    {
        m_contained.attach(this);
    }

    void destroy()
    {
        m_contained.detach(this);
    }

public:

    typedef LazyStatic<TypeCasts> StaticTypeCasts;

    scene::Traversable &get(NullType<scene::Traversable>)
    {
        return m_contained.getTraversable();
    }

    Snappable &get(NullType<Snappable>)
    {
        return m_contained;
    }

    TransformNode &get(NullType<TransformNode>)
    {
        return m_contained.getTransformNode();
    }

    Entity &get(NullType<Entity>)
    {
        return m_contained.getEntity();
    }

    Nameable &get(NullType<Nameable>)
    {
        return m_contained.getNameable();
    }

    Namespaced &get(NullType<Namespaced>)
    {
        return m_contained.getNamespaced();
    }

    ModelSkin &get(NullType<ModelSkin>)
    {
        return m_contained.getModelSkin();
    }

    Doom3GroupNode(EntityClass *eclass) :
            m_node(this, this, StaticTypeCasts::instance().get()),
            m_contained(eclass, m_node, InstanceSet::TransformChangedCaller(m_instances),
                        InstanceSet::BoundsChangedCaller(m_instances),
                        InstanceSetEvaluateTransform<Doom3GroupInstance>::Caller(m_instances))
    {
        construct();
    }

    Doom3GroupNode(const Doom3GroupNode &other) :
            scene::Node::Symbiot(other),
            scene::Instantiable(other),
            scene::Cloneable(other),
            scene::Traversable::Observer(other),
            m_node(this, this, StaticTypeCasts::instance().get()),
            m_contained(other.m_contained, m_node, InstanceSet::TransformChangedCaller(m_instances),
                        InstanceSet::BoundsChangedCaller(m_instances),
                        InstanceSetEvaluateTransform<Doom3GroupInstance>::Caller(m_instances))
    {
        construct();
    }

    ~Doom3GroupNode()
    {
        destroy();
    }

    void release()
    {
        delete this;
    }

    scene::Node &node()
    {
        return m_node;
    }

    scene::Node &clone() const
    {
        return (new Doom3GroupNode(*this))->node();
    }

    void insert(scene::Node &child)
    {
        m_instances.insert(child);
    }

    void erase(scene::Node &child)
    {
        m_instances.erase(child);
    }

    scene::Instance *create(const scene::Path &path, scene::Instance *parent)
    {
        return new Doom3GroupInstance(path, parent, m_contained);
    }

    void forEachInstance(const scene::Instantiable::Visitor &visitor)
    {
        m_instances.forEachInstance(visitor);
    }

    void insert(scene::Instantiable::Observer *observer, const scene::Path &path, scene::Instance *instance)
    {
        m_instances.insert(observer, path, instance);
    }

    scene::Instance *erase(scene::Instantiable::Observer *observer, const scene::Path &path)
    {
        return m_instances.erase(observer, path);
    }
};

void Doom3Group_construct()
{
    CurveEdit::Type::instance().m_controlsShader = GlobalShaderCache().capture("$POINT");
    CurveEdit::Type::instance().m_selectedShader = GlobalShaderCache().capture("$SELPOINT");
}

void Doom3Group_destroy()
{
    GlobalShaderCache().release("$SELPOINT");
    GlobalShaderCache().release("$POINT");
}

scene::Node &New_Doom3Group(EntityClass *eclass)
{
    return (new Doom3GroupNode(eclass))->node();
}