IScene.h

#pragma once
 
#include "../Renderers/LineRenderer/LineRenderer.h"
#include "../DataManager/DataManager.h"
 
 
#include "../GECS/Core/GECSManager.h"
 
#define SCENE_INDEX_NO_SCENE -1
 
class AppInterface;
 
enum class SceneState {
    NONE,
    RUNNING,
    EXIT_APPLICATION,
    CHANGE_NEXT,
    CHANGE_PREVIOUS
};
 
class IScene {
public:
    friend class SceneList;
    IScene() {
 
    }
    virtual ~IScene() {
 
    }
 
    //Returns the index of the next or previous screen when changing screens
    virtual int getNextSceneIndex() const = 0;
    virtual int getPreviousSceneIndex() const = 0;
 
    //Called at beginning and end of application
    virtual void build() = 0;
    virtual void destroy() = 0;
 
    //Called when a screen enters and exits focus
    virtual void onEntry() = 0;
    virtual void onExit() = 0;
 
    virtual void checkInput() = 0;
 
    virtual void update(float deltaTime) = 0;
    virtual void draw() = 0;
 
    virtual void BeginRender() = 0;
    virtual void updateUI(float deltaTime) = 0;
    virtual void drawUI() = 0;
    virtual void EndRender() = 0;
 
    int getSceneIndex() const {
        return _sceneIndex;
    }
    void setRunning() {
        _currentState = SceneState::RUNNING;
    }
 
    SceneState getState() const { return _currentState; }
 
    void setParentApp(AppInterface* app) { _app = app; }
 
    AppInterface* getApp() const { return _app; }
 
    void setManager(std::string m_managerName) {
        if (!m_managerName.empty()) {
            auto it = managers.find(m_managerName);
            if (it == managers.end()) {
                managers[m_managerName] = new Manager();
            }
            manager = managers[m_managerName];
            managerName = m_managerName;
        }
    };
 
protected:
    SceneState _currentState = SceneState::NONE;
    AppInterface* _app = nullptr;
    int _sceneIndex = -1;
 
    std::unordered_map<std::string, Manager*> managers = {
    };
 
    Manager* manager = nullptr;
    std::string managerName = "";
 
    bool _renderDebug = false;
};