shooter/engine/animation/Timeline.h

//
// Created by Иван Ильин on 03.10.2021.
//

#ifndef SHOOTER_TIMELINE_H
#define SHOOTER_TIMELINE_H

#include <memory>
#include <string>
#include <map>

#include "Animation.h"

class AnimationListTag final {
private:
    const std::string _name;
public:
    explicit AnimationListTag(std::string name = "") : _name(std::move(name)) {}

    [[nodiscard]] std::string str() const { return _name; }

    bool operator==(const AnimationListTag &tag) const { return _name == tag._name; }

    bool operator!=(const AnimationListTag &tag) const { return _name != tag._name; }

    bool operator<(const AnimationListTag &tag) const { return _name < tag._name; }
};

class Timeline {
private:
    std::map<AnimationListTag, std::list<std::shared_ptr<Animation>>> _animations;

    static Timeline *_instance;

    Timeline() = default;

public:
    Timeline(const Timeline &) = delete;

    Timeline &operator=(Timeline &) = delete;

    static void update();

    static void deleteAllAnimations();

    static void deleteAnimationList(const AnimationListTag &listName);

    [[nodiscard]] static bool isInAnimList(const AnimationListTag &listName);

    static void init();

    static void free();

    template <typename T, typename... Arguments>
    static void addAnimation(const AnimationListTag &listName, Arguments... args) {
        if (_instance == nullptr) {
            return;
        }

        _instance->_animations[listName].emplace_back(std::make_shared<T>(args...));
    }

    template <typename T, typename... Arguments>
    static void addAnimation(Arguments... args) {
        if (_instance == nullptr) {
            return;
        }

        _instance->_animations[AnimationListTag("timeline_0")].emplace_back(std::make_shared<T>(args...));
    }
};

#endif //SHOOTER_TIMELINE_H