volume_grid_emitter2.h

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// Copyright (c) 2019 Doyub Kim
//
// I am making my contributions/submissions to this project solely in my
// personal capacity and am not conveying any rights to any intellectual
// property of any third parties.
 
#ifndef INCLUDE_JET_VOLUME_GRID_EMITTER2_H_
#define INCLUDE_JET_VOLUME_GRID_EMITTER2_H_
 
#include <jet/grid_emitter2.h>
#include <jet/scalar_grid2.h>
#include <jet/vector_grid2.h>
 
#include <tuple>
#include <vector>
 
namespace jet {
 
class VolumeGridEmitter2 final : public GridEmitter2 {
 public:
    class Builder;
 
    typedef std::function<double(double, const Vector2D&, double)>
        ScalarMapper;
 
    typedef std::function<Vector2D(double, const Vector2D&, const Vector2D&)>
        VectorMapper;
 
    explicit VolumeGridEmitter2(
        const ImplicitSurface2Ptr& sourceRegion,
        bool isOneShot = true);
 
    virtual ~VolumeGridEmitter2();
 
    void addSignedDistanceTarget(const ScalarGrid2Ptr& scalarGridTarget);
 
    void addStepFunctionTarget(
        const ScalarGrid2Ptr& scalarGridTarget,
        double minValue,
        double maxValue);
 
    void addTarget(
        const ScalarGrid2Ptr& scalarGridTarget,
        const ScalarMapper& customMapper);
 
    void addTarget(
        const VectorGrid2Ptr& vectorGridTarget,
        const VectorMapper& customMapper);
 
    const ImplicitSurface2Ptr& sourceRegion() const;
 
    bool isOneShot() const;
 
    static Builder builder();
 
 private:
    typedef std::tuple<ScalarGrid2Ptr, ScalarMapper> ScalarTarget;
    typedef std::tuple<VectorGrid2Ptr, VectorMapper> VectorTarget;
 
    ImplicitSurface2Ptr _sourceRegion;
    bool _isOneShot = true;
    bool _hasEmitted = false;
    std::vector<ScalarTarget> _customScalarTargets;
    std::vector<VectorTarget> _customVectorTargets;
 
    void onUpdate(
        double currentTimeInSeconds,
        double timeIntervalInSeconds) override;
 
    void emit();
};
 
typedef std::shared_ptr<VolumeGridEmitter2> VolumeGridEmitter2Ptr;
 
 
class VolumeGridEmitter2::Builder final {
 public:
    Builder& withSourceRegion(const Surface2Ptr& sourceRegion);
 
    Builder& withIsOneShot(bool isOneShot);
 
    VolumeGridEmitter2 build() const;
 
    VolumeGridEmitter2Ptr makeShared() const;
 
 private:
    ImplicitSurface2Ptr _sourceRegion;
    bool _isOneShot = true;
};
 
}  // namespace jet
 
#endif  // INCLUDE_JET_VOLUME_GRID_EMITTER2_H_