animation.hpp

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#pragma once
#include <le2d/anim/timeline.hpp>
#include <le2d/asset/asset.hpp>
#include <le2d/tile/tile_id.hpp>
#include <le2d/transform.hpp>
#include <algorithm>
 
namespace le {
namespace anim {
template <typename PayloadT>
class Animation : public IAsset {
  public:
    using Payload = PayloadT;
 
    [[nodiscard]] auto get_timeline() const -> Timeline<Payload> const& { return m_timeline; }
 
    void set_timeline(Timeline<Payload> timeline) {
        m_timeline = std::move(timeline);
        std::ranges::sort(m_timeline.keyframes, [](Keyframe<Payload> const& a, Keyframe<Payload> const& b) { return a.timestamp < b.timestamp; });
    }
 
    [[nodiscard]] auto is_loaded() const -> bool { return !m_timeline.keyframes.empty(); }
 
    std::string name{};
    bool repeat{true};
 
  private:
    Timeline<Payload> m_timeline{};
};
} // namespace anim
 
using TransformAnimation = anim::Animation<Transform>;
using FlipbookAnimation = anim::Animation<TileId>;
} // namespace le