Fade.hpp

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// Copyright 2025-2026 Jan Niklas Hasse <jhasse@bixense.com>
// For conditions of distribution and use, see copyright notice in LICENSE.txt
#pragma once
 
#include "Scene.hpp"
 
#include <optional>
 
namespace jngl {
 
class Fade : public Scene {
public:
    struct Options {
        int speed = 20;
 
        bool fadeOutOnly = false;
    };
 
    explicit Fade(std::shared_ptr<Scene>, std::optional<Options> options = {});
 
    explicit Fade(std::function<std::shared_ptr<Scene>()> factory,
                  std::optional<Options> options = {});
 
    ~Fade() override;
    void step() override;
    void draw() const override;
 
private:
    void onQuitEvent() override;
 
    std::shared_ptr<Scene> work;
    std::shared_ptr<Scene> oldWork;
    double fadeCount;
    int speed;
    bool quit = false;
    bool fadeOutOnly;
};
 
} // namespace jngl