#pragma once

#include "core/effect.hpp"

namespace effector {

// Lays the image over itself again and again, each copy zoomed, turned and
// drifted a little further and fading as it goes, like a camera filming its
// own monitor.
// A pure transform: it needs no source images, and leading a chain with
// sources loaded it starts from a crop of a randomly chosen one.
class FeedbackEffect : public Effect {
public:
    std::string name() const override { return "feedback"; }
    std::string title() const override { return "Feedback"; }
    std::string description() const override {
        return "Lays the image over itself again and again, each copy zoomed, turned and drifted "
               "further and fading, like a camera filming its own monitor.";
    }
    const std::vector<ParamSpec>& params() const override;
    bool needsSources() const override { return false; }

    Image render(const std::vector<Image>& sources, int width, int height, Rng& rng,
                 const ParamValues& values) const override;
};

}  // namespace effector