XCEngine/editor/src/Core/PlaySessionController.h

#pragma once

#include "EditorRuntimeMode.h"
#include "SceneSnapshot.h"

#include "Core/EditorEvents.h"

#include <XCEngine/Scene/RuntimeLoop.h>

#include <cstddef>
#include <cstdint>

namespace XCEngine {
namespace Editor {

class IEditorContext;

class PlaySessionController {
public:
    void Attach(IEditorContext& context);
    void Detach(IEditorContext& context);

    void Update(IEditorContext& context, float deltaTime);

    bool StartPlay(IEditorContext& context);
    bool StopPlay(IEditorContext& context);
    bool PausePlay(IEditorContext& context);
    bool ResumePlay(IEditorContext& context);
    bool StepPlay(IEditorContext& context);

    ::XCEngine::Components::Scene* GetRuntimeScene() const { return m_runtimeLoop.GetScene(); }

private:
    void ResetRuntimeInputBridge();
    void ApplyGameViewInputFrame(float deltaTime);
    void EnsureRuntimeSceneSyncSubscription(IEditorContext& context);
    void ClearRuntimeSceneSyncSubscription(IEditorContext& context);
    void SyncRuntimeSceneIfNeeded(IEditorContext& context);

    uint64_t m_playStartRequestedHandlerId = 0;
    uint64_t m_playStopRequestedHandlerId = 0;
    uint64_t m_playPauseRequestedHandlerId = 0;
    uint64_t m_playResumeRequestedHandlerId = 0;
    uint64_t m_playStepRequestedHandlerId = 0;
    uint64_t m_gameViewInputFrameHandlerId = 0;
    uint64_t m_runtimeSceneChangedHandlerId = 0;
    SceneSnapshot m_editorSnapshot = {};
    GameViewInputFrameEvent m_pendingGameViewInput = {};
    GameViewInputFrameEvent m_appliedGameViewInput = {};
    bool m_hasPendingGameViewInput = false;
    XCEngine::Components::RuntimeLoop m_runtimeLoop;
};

} // namespace Editor
} // namespace XCEngine