shooter/engine/animation/Timeline.h

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

#ifndef SHOOTER_TIMELINE_H
#define SHOOTER_TIMELINE_H

#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:
    // TODO: replace Animation* with shared_ptr<Animation> & check for possible memory leaks
    std::map<AnimationListTag, std::list<Animation*>> _animations;

    static Timeline* _instance;

    Timeline() = default;
public:
    Timeline(const Timeline&) = delete;
    Timeline& operator=(Timeline&) = delete;

    static void update();
    static void animate(const AnimationListTag& listName, Animation* anim);

    static void deleteAllAnimations();
    static void deleteAnimationList(const AnimationListTag& listName);

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

    static void init();
    static void free();
};

#endif //SHOOTER_TIMELINE_H