LoadingMenu.h

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#pragma once
 
#include "PolyphaseAPI.h"
#include "SmartPointer.h"
#include "Datum.h"
#include "Nodes/Node.h"
 
#include <string>
#include <vector>
 
class World;
 
enum class LoadingState : uint8_t
{
    Idle,
    Loading,
    Closing,
};
 
class POLYPHASE_API LoadingMenu
{
public:
 
    void SetMenuScene(const std::string& sceneName);
    const std::string& GetMenuScene() const;
 
    bool Open(const std::string& targetSceneName, int32_t worldIndex = 0);
    void Close();
    void ForceClose();
 
    bool IsActive() const;
    LoadingState GetState() const;
    const std::string& GetTargetScene() const;
 
    void Update(float deltaTime, int32_t worldIndex);
 
    bool ShouldInterceptLoadScene() const;
 
private:
 
    static Datum OnLoadingFinishedSignal(Node* listener, const std::vector<Datum>& args);
 
    void NotifyFinished();
    std::string ResolveLoadingSceneName() const;
    void TeardownMenuRoot();
 
    std::string mMenuSceneOverride;
    std::string mActiveLoadingScene;
    std::string mTargetScene;
    NodePtr     mMenuRoot;
    int32_t     mWorldIndex = 0;
    LoadingState mState = LoadingState::Idle;
    float       mElapsed = 0.0f;
    bool        mFinishedSignalReceived = false;
    bool        mMinDisplayElapsedEmitted = false;
    bool        mCloseRequested = false;
    bool        mInternalLoad = false;
};
 
POLYPHASE_API LoadingMenu* GetLoadingMenu();