ScaleByAction.hpp

/******************************************************************************
 
  nomlib - C++11 cross-platform game engine
 
Copyright (c) 2013, 2014 Jeffrey Carpenter <i8degrees@gmail.com>
All rights reserved.
 
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#ifndef NOMLIB_ACTIONS_SCALE_BY_ACTION_HPP
#define NOMLIB_ACTIONS_SCALE_BY_ACTION_HPP
 
#include <memory>
 
#include "nomlib/config.hpp"
#include "nomlib/actions/IActionObject.hpp"
#include "nomlib/math/Size2.hpp"
#include "nomlib/math/Rect.hpp"
 
namespace nom {
 
// Forward declarations
class Sprite;

class ScaleByAction: public virtual IActionObject
{
  public:
    friend class ActionTest;
 
    typedef ScaleByAction self_type;
    typedef IActionObject derived_type;

    ScaleByAction(  const std::shared_ptr<Sprite>& drawable,
                    const Size2f& delta, real32 seconds );
 
    virtual ~ScaleByAction();
 
    virtual std::unique_ptr<IActionObject> clone() const override;
 
    virtual IActionObject::FrameState next_frame(real32 delta_time) override;
 
    virtual IActionObject::FrameState prev_frame(real32 delta_time) override;
 
    virtual void pause(real32 delta_time) override;
 
    virtual void resume(real32 delta_time) override;
 
    virtual void rewind(real32 delta_time) override;
 
    virtual void release() override;
 
  private:
    static const char* DEBUG_CLASS_NAME;
 
    IActionObject::FrameState
    update(real32 t, const Size2i& b, const Size2f& c, real32 d);
 
    void first_frame(real32 delta_time);
    void last_frame(real32 delta_time);
 
    const Size2f total_displacement_ = Size2f::zero;
    Size2i initial_size_ = Size2i::zero;
 
    std::shared_ptr<Sprite> drawable_;

    Size2i size_ = Size2i::zero;
};
 
} // namespace nom
 
#endif // include guard defined