Program Listing for File CoalScenePart.h

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/**
 * @file
 * @brief Contains the declarations for the CoalScenePart class.
 */

#pragma once
#include "Karana/CoalScene/CoalGeometryCache.h"
#include "Karana/CoalScene/CoalSceneNode.h"
#include "Karana/KCore/SharedPointer.h"
#include "Karana/KCore/SideEffect.h"
#include "Karana/Scene/CollisionInfo.h"
#include "Karana/Scene/CollisionScenePart.h"
#include "Karana/Scene/Material.h"
#include "Karana/Scene/StaticGeometry.h"

namespace coal {
    class CollisionObject; // forward declaration. Full class included in the cc file.
}

namespace Karana::Scene {
    /**
     * @class CoalScenePart
     * @brief CollisionScenePart implementation for CoalScene
     *
     * See \sref{scene_layer_sec} for more discussion on
     * the scene layer.
     */
    class CoalScenePart : public CoalSceneNode, public CollisionScenePart {
      public:
        /**
         * @brief CoalScenePart constructor.
         * @param name - Name of the CoalScenePart.
         * @param scene - CoalScene to add the part to.
         * @param geometry - Geometry of the CoalScenePart.
         * @param material - Material for the CoalScenePart.
         * @param layers - Layers to use for the CoalScenePart.
         * @param geometry_cache - Helper to create native COAL geometries.
         */
        CoalScenePart(std::string_view name,
                      const kc::ks_ptr<Scene> &scene,
                      const VarStaticGeometry &geometry,
                      const VarMaterial &material,
                      layer_t layers,
                      const CoalGeometryCache &geometry_cache);

        /**
         * @brief Destructor.
         */
        ~CoalScenePart();

        /**
         * @brief Create a CoalScenePart.
         * @param name - Name of the CoalScenePart.
         * @param scene - The GraphicalScene to add the CoalScenePart to.
         * @param geometry - Geometry of the CoalScenePart.
         * @param material - Material for the CoalScenePart.
         * @param layers - Layers to use for the CoalScenePart.
         * @return The new CoalScene part.
         */
        static kc::ks_ptr<CoalScenePart> create(std::string_view name,
                                                const kc::ks_ptr<CoalScene> &scene,
                                                const VarStaticGeometry &geometry,
                                                const VarMaterial &material = defaultMaterial(),
                                                layer_t layers = LAYER_PHYSICAL);

        const CollisionInfo &
        collide(const CollisionScenePart &other,
                CollisionInfo &result = CollisionInfo::singleton()) const override;

        const DistanceInfo &
        distance(const CollisionScenePart &other,
                 DistanceInfo &result = DistanceInfo::singleton()) const override;

      private:
        void _syncTransform();

        // For access to collision object and _transform_sync
        friend class CoalScene;
        Karana::Math::UnitQuaternion _primitive_quat_correction;
        mutable std::unique_ptr<coal::CollisionObject> _collision_object;
        Karana::Core::ks_ptr<Karana::Core::SideEffect> _transform_sync;
    };
} // namespace Karana::Scene