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_ANIMATION_H_
#define INCLUDE_JET_ANIMATION_H_
 
#include <jet/macros.h>
#include <memory>
 
namespace jet {
 
struct Frame final {
    int index = 0;
 
    double timeIntervalInSeconds = 1.0 / 60.0;
 
    Frame();
 
    Frame(int newIndex, double newTimeIntervalInSeconds);
 
    double timeInSeconds() const;
 
    void advance();
 
    void advance(int delta);
 
    Frame& operator++();
 
    Frame operator++(int);
};
 
class Animation {
 public:
    Animation();
 
    virtual ~Animation();
 
    void update(const Frame& frame);
 
 protected:
    virtual void onUpdate(const Frame& frame) = 0;
};
 
typedef std::shared_ptr<Animation> AnimationPtr;
 
}  // namespace jet
 
#endif  // INCLUDE_JET_ANIMATION_H_