SceneManager.h

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#pragma once
 
#include <vector>
 
#include <ElevateEngine/Scene/Scene.h>
 
namespace Elevate
{
    class SceneManager {
    public:
        static inline void LoadScene(ScenePtr scene) { PushScene(scene); }
        static inline void UnloadScene(ScenePtr scene) { PopScene(scene); }
 
        static inline void SetScene(ScenePtr scene) 
        { 
            m_Scenes.clear();
            LoadScene(scene);
        }
 
        static inline ScenePtr GetCurrentScene() 
        {
            if (!m_Scenes.empty())
            {
                return m_Scenes.back();
            }
            else return nullptr;
        }
 
        static inline ScenePtr GetCurrentScene(SceneType type) {
            for (auto it = m_Scenes.end() - 1; it >= m_Scenes.begin(); it--) {
                ScenePtr ptr = *it;
                if (it->get()->GetType() == type) {
                    return ptr;
                }
            }
            return nullptr;
        }
 
        static inline std::vector<ScenePtr>::iterator begin() { return m_Scenes.begin(); }
        static inline std::vector<ScenePtr>::iterator end() { return m_Scenes.end(); }
 
    private:
        static inline void PushScene(ScenePtr scene) { m_Scenes.push_back(scene); }
        static inline void PopScene(ScenePtr scene) 
        {
            m_Scenes.erase(std::remove(m_Scenes.begin(), m_Scenes.end(), scene), m_Scenes.end());
        }
 
    private:
        static inline std::vector<ScenePtr> m_Scenes;
    };
}