SpriteAnimation.h

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#pragma once
 
#include <array>
#include "asset/EvpackResourceReader.h"
#include "common/Export.h"
namespace eve {
class Value;
}
 
namespace eve::asset {
struct SpriteAnimationFrame {
    AssetRef              image;
    std::string           name;
    double                time = 0;
    std::array<double, 4> rect{};
    std::array<double, 2> pivot{};
    std::array<double, 2> imageSize{};
    double                pixelsPerUnit = 100;
    bool                  nearest       = true;
};
class EVENGINE_API_FOUNDATION SpriteAnimationClip {
public:
    [[nodiscard]] static Result<SpriteAnimationClip> decode(const Value& definition);
    [[nodiscard]] static Result<SpriteAnimationClip> load(const EvpackResourceReader& reader, const AssetRef& asset,
                                                          const EvpackCapabilities& capabilities);
    [[nodiscard]] Result<SpriteAnimationFrame> sample(double seconds) const;
    [[nodiscard]] std::size_t frameCount() const noexcept { return frames_.size(); }
    [[nodiscard]] double duration() const noexcept { return duration_; }
 
private:
    std::vector<SpriteAnimationFrame> frames_;
    double                            duration_ = 0;
    bool                              loop_     = false;
};
}  // namespace eve::asset