physics_animation.h

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// Copyright (c) 2018 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_PHYSICS_ANIMATION_H_
#define INCLUDE_JET_PHYSICS_ANIMATION_H_
 
#include <jet/animation.h>
 
namespace jet {
 
class PhysicsAnimation : public Animation {
 public:
    PhysicsAnimation();
 
    virtual ~PhysicsAnimation();
 
    bool isUsingFixedSubTimeSteps() const;
 
    void setIsUsingFixedSubTimeSteps(bool isUsing);
 
    unsigned int numberOfFixedSubTimeSteps() const;
 
    void setNumberOfFixedSubTimeSteps(unsigned int numberOfSteps);
 
    void advanceSingleFrame();
 
    Frame currentFrame() const;
 
    void setCurrentFrame(const Frame& frame);
 
    double currentTimeInSeconds() const;
 
 protected:
    virtual void onAdvanceTimeStep(double timeIntervalInSeconds) = 0;
 
    virtual unsigned int numberOfSubTimeSteps(
        double timeIntervalInSeconds) const;
 
    virtual void onInitialize();
 
 private:
    Frame _currentFrame;
    bool _isUsingFixedSubTimeSteps = true;
    unsigned int _numberOfFixedSubTimeSteps = 1;
    double _currentTime = 0.0;
 
    void onUpdate(const Frame& frame) final;
 
    void advanceTimeStep(double timeIntervalInSeconds);
 
    void initialize();
};
 
typedef std::shared_ptr<PhysicsAnimation> PhysicsAnimationPtr;
 
}  // namespace jet
 
#endif  // INCLUDE_JET_PHYSICS_ANIMATION_H_