o3de/Code/CryEngine/CrySystem/LevelSystem/SpawnableLevelSystem.cpp

/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/

#include "CrySystem_precompiled.h"
#include "SpawnableLevelSystem.h"
#include <IAudioSystem.h>
#include "IMovieSystem.h"
#include <IResourceManager.h>
#include "IDeferredCollisionEvent.h"

#include <LoadScreenBus.h>

#include <AzCore/Debug/AssetTracking.h>
#include <AzFramework/API/ApplicationAPI.h>
#include <AzFramework/IO/FileOperations.h>
#include <AzFramework/Entity/GameEntityContextBus.h>
#include <AzFramework/Input/Buses/Requests/InputChannelRequestBus.h>

#include "MainThreadRenderRequestBus.h"
#include <LyShine/ILyShine.h>
#include <AzCore/Component/TickBus.h>
#include <AzCore/IO/Path/Path.h>
#include <AzCore/StringFunc/StringFunc.h>

#include <AzCore/Script/ScriptSystemBus.h>

namespace LegacyLevelSystem
{
    //------------------------------------------------------------------------
    static void LoadLevel(const AZ::ConsoleCommandContainer& arguments)
    {
        AZ_Error("SpawnableLevelSystem", arguments.empty(), "LoadLevel requires a level file name to be provided.");
        AZ_Error("SpawnableLevelSystem", arguments.size() > 1, "LoadLevel requires a single level file name to be provided.");

        if (!arguments.empty() && gEnv->pSystem && gEnv->pSystem->GetILevelSystem() && !gEnv->IsEditor())
        {
            gEnv->pSystem->GetILevelSystem()->LoadLevel(arguments[0].data());
        }
    }

    //------------------------------------------------------------------------
    static void UnloadLevel([[maybe_unused]] const AZ::ConsoleCommandContainer& arguments)
    {
        AZ_Warning("SpawnableLevelSystem", !arguments.empty(), "UnloadLevel doesn't use any arguments.");

        if (gEnv->pSystem && gEnv->pSystem->GetILevelSystem() && !gEnv->IsEditor())
        {
            gEnv->pSystem->GetILevelSystem()->UnloadLevel();
        }
    }

    AZ_CONSOLEFREEFUNC(LoadLevel, AZ::ConsoleFunctorFlags::Null, "Unloads the current level and loads a new one with the given asset name");
    AZ_CONSOLEFREEFUNC(UnloadLevel, AZ::ConsoleFunctorFlags::Null, "Unloads the current level");

    //------------------------------------------------------------------------
    SpawnableLevelSystem::SpawnableLevelSystem(ISystem* pSystem)
        : m_pSystem(pSystem)
    {
        LOADING_TIME_PROFILE_SECTION;
        CRY_ASSERT(pSystem);

        m_fLastLevelLoadTime = 0;
        m_fLastTime = 0;
        m_bLevelLoaded = false;

        m_levelLoadStartTime.SetValue(0);
        m_nLoadedLevelsCount = 0;

        AZ_Assert(gEnv && gEnv->pCryPak, "gEnv and CryPak must be initialized for loading levels.");
        if (!gEnv || !gEnv->pCryPak)
        {
            return;
        }

        AzFramework::RootSpawnableNotificationBus::Handler::BusConnect();
    }

    //------------------------------------------------------------------------
    SpawnableLevelSystem::~SpawnableLevelSystem()
    {
        AzFramework::RootSpawnableNotificationBus::Handler::BusDisconnect();
    }

    void SpawnableLevelSystem::Release()
    {
        delete this;
    }

    bool SpawnableLevelSystem::IsLevelLoaded()
    {
        return m_bLevelLoaded;
    }

    const char* SpawnableLevelSystem::GetCurrentLevelName() const
    {
        return m_bLevelLoaded ? m_lastLevelName.c_str() : "";
    }

    // If the level load failed then we need to have a different shutdown procedure vs when a level is naturally unloaded
    void SpawnableLevelSystem::SetLevelLoadFailed(bool loadFailed)
    {
        m_levelLoadFailed = loadFailed;
    }

    bool SpawnableLevelSystem::GetLevelLoadFailed()
    {
        return m_levelLoadFailed;
    }

    AZ::Data::AssetType SpawnableLevelSystem::GetLevelAssetType() const
    {
        return azrtti_typeid<AzFramework::Spawnable>();
    }

    // The following methods are deprecated from ILevelSystem and will be removed once slice support is removed.

    // [LYN-2376] Remove once legacy slice support is removed
    void SpawnableLevelSystem::Rescan([[maybe_unused]] const char* levelsFolder)
    {
        AZ_Assert(false, "Rescan - No longer supported.");
    }

    // [LYN-2376] Remove once legacy slice support is removed
    int SpawnableLevelSystem::GetLevelCount()
    {
        AZ_Assert(false, "GetLevelCount - No longer supported.");
        return 0;
    }

    // [LYN-2376] Remove once legacy slice support is removed
    ILevelInfo* SpawnableLevelSystem::GetLevelInfo([[maybe_unused]] int level)
    {
        AZ_Assert(false, "GetLevelInfo - No longer supported.");
        return nullptr;
    }

    // [LYN-2376] Remove once legacy slice support is removed
    ILevelInfo* SpawnableLevelSystem::GetLevelInfo([[maybe_unused]] const char* levelName)
    {
        AZ_Assert(false, "GetLevelInfo - No longer supported.");
        return nullptr;
    }

    //------------------------------------------------------------------------
    void SpawnableLevelSystem::AddListener(ILevelSystemListener* pListener)
    {
        AZStd::vector<ILevelSystemListener*>::iterator it = AZStd::find(m_listeners.begin(), m_listeners.end(), pListener);

        if (it == m_listeners.end())
        {
            m_listeners.push_back(pListener);
        }
    }

    //------------------------------------------------------------------------
    void SpawnableLevelSystem::RemoveListener(ILevelSystemListener* pListener)
    {
        AZStd::vector<ILevelSystemListener*>::iterator it = AZStd::find(m_listeners.begin(), m_listeners.end(), pListener);

        if (it != m_listeners.end())
        {
            m_listeners.erase(it);
        }
    }

    //------------------------------------------------------------------------
    bool SpawnableLevelSystem::LoadLevel(const char* levelName)
    {
        if (gEnv->IsEditor())
        {
            AZ_TracePrintf("CrySystem::CLevelSystem", "LoadLevel for %s was called in the editor - not actually loading.\n", levelName);
            return false;
        }

        // If a level is currently loaded, unload it before loading the next one.
        if (IsLevelLoaded())
        {
            UnloadLevel();
        }

        gEnv->pSystem->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_LEVEL_LOAD_PREPARE, 0, 0);
        PrepareNextLevel(levelName);

        bool result = LoadLevelInternal(levelName);
        if (result)
        {
            OnLoadingComplete(levelName);
        }

        return result;
    }

    //------------------------------------------------------------------------
    bool SpawnableLevelSystem::LoadLevelInternal(const char* levelName)
    {
        gEnv->pSystem->SetSystemGlobalState(ESYSTEM_GLOBAL_STATE_LEVEL_LOAD_START);
        AZ_ASSET_NAMED_SCOPE("Level: %s", levelName);

        INDENT_LOG_DURING_SCOPE();

        AZ::Data::AssetId rootSpawnableAssetId;
        AZ::Data::AssetCatalogRequestBus::BroadcastResult(
            rootSpawnableAssetId, &AZ::Data::AssetCatalogRequestBus::Events::GetAssetIdByPath, levelName, nullptr, false);
        if (!rootSpawnableAssetId.IsValid())
        {
            OnLoadingError(levelName, "AssetCatalog has no entry for the requested level.");

            return false;
        }

        // This scope is specifically used for marking a loading time profile section
        {
            LOADING_TIME_PROFILE_SECTION;

            m_bLevelLoaded = false;
            m_lastLevelName = levelName;
            gEnv->pConsole->SetScrollMax(600);
            ICVar* con_showonload = gEnv->pConsole->GetCVar("con_showonload");
            if (con_showonload && con_showonload->GetIVal() != 0)
            {
                gEnv->pConsole->ShowConsole(true);
                ICVar* g_enableloadingscreen = gEnv->pConsole->GetCVar("g_enableloadingscreen");
                if (g_enableloadingscreen)
                {
                    g_enableloadingscreen->Set(0);
                }
            }

            // This is a workaround until the replacement for GameEntityContext is done
            AzFramework::GameEntityContextEventBus::Broadcast(&AzFramework::GameEntityContextEventBus::Events::OnPreGameEntitiesStarted);

            // Reset the camera to (1,1,1) (not (0,0,0) which is the invalid/uninitialised state,
            // to avoid the hack in the renderer to not show anything if the camera is at the origin).
            CCamera defaultCam;
            defaultCam.SetPosition(Vec3(1.0f));
            m_pSystem->SetViewCamera(defaultCam);

            OnLoadingStart(levelName);

            auto pPak = gEnv->pCryPak;

            m_pSystem->SetThreadState(ESubsys_Physics, false);

            ICVar* pSpamDelay = gEnv->pConsole->GetCVar("log_SpamDelay");
            float spamDelay = 0.0f;
            if (pSpamDelay)
            {
                spamDelay = pSpamDelay->GetFVal();
                pSpamDelay->Set(0.0f);
            }

            // Parse level specific config data.
            AZStd::string const sLevelNameOnly(PathUtil::GetFileName(levelName));

            if (!sLevelNameOnly.empty())
            {
                const char* controlsPath = nullptr;
                Audio::AudioSystemRequestBus::BroadcastResult(controlsPath, &Audio::AudioSystemRequestBus::Events::GetControlsPath);
                if (controlsPath)
                {
                    AZStd::string sAudioLevelPath(controlsPath);
                    sAudioLevelPath.append("levels/");
                    sAudioLevelPath += sLevelNameOnly;

                    Audio::SAudioManagerRequestData<Audio::eAMRT_PARSE_CONTROLS_DATA> oAMData(
                        sAudioLevelPath.c_str(), Audio::eADS_LEVEL_SPECIFIC);
                    Audio::SAudioRequest oAudioRequestData;
                    oAudioRequestData.nFlags =
                        (Audio::eARF_PRIORITY_HIGH |
                         Audio::eARF_EXECUTE_BLOCKING); // Needs to be blocking so data is available for next preloading request!
                    oAudioRequestData.pData = &oAMData;
                    Audio::AudioSystemRequestBus::Broadcast(&Audio::AudioSystemRequestBus::Events::PushRequestBlocking, oAudioRequestData);

                    Audio::SAudioManagerRequestData<Audio::eAMRT_PARSE_PRELOADS_DATA> oAMData2(
                        sAudioLevelPath.c_str(), Audio::eADS_LEVEL_SPECIFIC);
                    oAudioRequestData.pData = &oAMData2;
                    Audio::AudioSystemRequestBus::Broadcast(&Audio::AudioSystemRequestBus::Events::PushRequestBlocking, oAudioRequestData);

                    Audio::TAudioPreloadRequestID nPreloadRequestID = INVALID_AUDIO_PRELOAD_REQUEST_ID;

                    Audio::AudioSystemRequestBus::BroadcastResult(
                        nPreloadRequestID, &Audio::AudioSystemRequestBus::Events::GetAudioPreloadRequestID, sLevelNameOnly.c_str());
                    if (nPreloadRequestID != INVALID_AUDIO_PRELOAD_REQUEST_ID)
                    {
                        Audio::SAudioManagerRequestData<Audio::eAMRT_PRELOAD_SINGLE_REQUEST> requestData(nPreloadRequestID, true);
                        oAudioRequestData.pData = &requestData;
                        Audio::AudioSystemRequestBus::Broadcast(&Audio::AudioSystemRequestBus::Events::PushRequestBlocking, oAudioRequestData);
                    }
                }
            }


            AZ::Data::Asset<AzFramework::Spawnable> rootSpawnable(
                rootSpawnableAssetId, azrtti_typeid<AzFramework::Spawnable>(), levelName);

            m_rootSpawnableId = rootSpawnableAssetId;
            m_rootSpawnableGeneration = AzFramework::RootSpawnableInterface::Get()->AssignRootSpawnable(rootSpawnable);

            // This is a workaround until the replacement for GameEntityContext is done
            AzFramework::GameEntityContextEventBus::Broadcast(&AzFramework::GameEntityContextEventBus::Events::OnGameEntitiesStarted);

            //////////////////////////////////////////////////////////////////////////
            // Movie system must be reset after entities.
            //////////////////////////////////////////////////////////////////////////
            IMovieSystem* movieSys = gEnv->pMovieSystem;
            if (movieSys != NULL)
            {
                // bSeekAllToStart needs to be false here as it's only of interest in the editor
                movieSys->Reset(true, false);
            }

            gEnv->pSystem->SetSystemGlobalState(ESYSTEM_GLOBAL_STATE_LEVEL_LOAD_START_PRECACHE);

            //////////////////////////////////////////////////////////////////////////
            //////////////////////////////////////////////////////////////////////////
            gEnv->pConsole->SetScrollMax(600 / 2);

            pPak->GetResourceList(AZ::IO::IArchive::RFOM_NextLevel)->Clear();

            if (pSpamDelay)
            {
                pSpamDelay->Set(spamDelay);
            }

            m_bLevelLoaded = true;
            gEnv->pSystem->SetSystemGlobalState(ESYSTEM_GLOBAL_STATE_LEVEL_LOAD_END);
        }

        GetISystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_LEVEL_LOAD_END, 0, 0);

        if (auto cvar = gEnv->pConsole->GetCVar("sv_map"); cvar)
        {
            cvar->Set(levelName);
        }

        gEnv->pSystem->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_LEVEL_PRECACHE_START, 0, 0);

        m_pSystem->SetThreadState(ESubsys_Physics, true);

        return true;
    }

    //------------------------------------------------------------------------
    void SpawnableLevelSystem::PrepareNextLevel(const char* levelName)
    {
        AZ::Data::AssetId rootSpawnableAssetId;
        AZ::Data::AssetCatalogRequestBus::BroadcastResult(
            rootSpawnableAssetId, &AZ::Data::AssetCatalogRequestBus::Events::GetAssetIdByPath, levelName, nullptr, false);
        if (!rootSpawnableAssetId.IsValid())
        {
            // alert the listener
            OnLevelNotFound(levelName);
            return;
        }

        // This work not required in-editor.
        if (!gEnv || !gEnv->IsEditor())
        {
            m_levelLoadStartTime = gEnv->pTimer->GetAsyncTime();

            // switched to level heap, so now imm start the loading screen (renderer will be reinitialized in the levelheap)
            gEnv->pSystem->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_LEVEL_LOAD_START_LOADINGSCREEN, 0, 0);
            gEnv->pSystem->SetSystemGlobalState(ESYSTEM_GLOBAL_STATE_LEVEL_LOAD_START_PREPARE);
        }

        OnPrepareNextLevel(levelName);
    }

    void SpawnableLevelSystem::OnPrepareNextLevel(const char* levelName)
    {
        AZ_TracePrintf("LevelSystem", "Level system is preparing to load '%s'\n", levelName);

        for (auto& listener : m_listeners)
        {
            listener->OnPrepareNextLevel(levelName);
        }
    }

    //------------------------------------------------------------------------
    void SpawnableLevelSystem::OnLevelNotFound(const char* levelName)
    {
        AZ_Error("LevelSystem", false, "Requested level not found: '%s'\n", levelName);

        for (auto& listener : m_listeners)
        {
            listener->OnLevelNotFound(levelName);
        }
    }

    //------------------------------------------------------------------------
    void SpawnableLevelSystem::OnLoadingStart(const char* levelName)
    {
        AZ_TracePrintf("LevelSystem", "Level system is loading '%s'\n", levelName);

        if (gEnv->pCryPak->GetRecordFileOpenList() == AZ::IO::IArchive::RFOM_EngineStartup)
        {
            gEnv->pCryPak->RecordFileOpen(AZ::IO::IArchive::RFOM_Level);
        }

        m_fLastTime = gEnv->pTimer->GetAsyncCurTime();

        GetISystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_LEVEL_LOAD_START, 0, 0);

        LOADING_TIME_PROFILE_SECTION(gEnv->pSystem);

        for (auto& listener : m_listeners)
        {
            listener->OnLoadingStart(levelName);
        }
    }

    //------------------------------------------------------------------------
    void SpawnableLevelSystem::OnLoadingError(const char* levelName, const char* error)
    {
        AZ_Error("LevelSystem", false, "Error loading level '%s': %s\n", levelName, error);

        if (gEnv->pRenderer)
        {
            gEnv->pRenderer->SetTexturePrecaching(false);
        }

        for (auto& listener : m_listeners)
        {
            listener->OnLoadingError(levelName, error);
        }
    }

    //------------------------------------------------------------------------
    void SpawnableLevelSystem::OnLoadingComplete(const char* levelName)
    {
        CTimeValue t = gEnv->pTimer->GetAsyncTime();
        m_fLastLevelLoadTime = (t - m_levelLoadStartTime).GetSeconds();

        LogLoadingTime();

        m_nLoadedLevelsCount++;

        // Hide console after loading.
        gEnv->pConsole->ShowConsole(false);

        for (auto& listener : m_listeners)
        {
            listener->OnLoadingComplete(levelName);
        }

    #if AZ_LOADSCREENCOMPONENT_ENABLED
        EBUS_EVENT(LoadScreenBus, Stop);
    #endif // if AZ_LOADSCREENCOMPONENT_ENABLED

        AZ_TracePrintf("LevelSystem", "Level load complete: '%s'\n", levelName);
    }

    //------------------------------------------------------------------------
    void SpawnableLevelSystem::OnLoadingProgress(const char* levelName, int progressAmount)
    {
        for (auto& listener : m_listeners)
        {
            listener->OnLoadingProgress(levelName, progressAmount);
        }
    }

    //------------------------------------------------------------------------
    void SpawnableLevelSystem::OnUnloadComplete(const char* levelName)
    {
        for (auto& listener : m_listeners)
        {
            listener->OnUnloadComplete(levelName);
        }

        AZ_TracePrintf("LevelSystem", "Level unload complete: '%s'\n", levelName);
    }

    //////////////////////////////////////////////////////////////////////////
    void SpawnableLevelSystem::LogLoadingTime()
    {
        if (gEnv->IsEditor())
        {
            return;
        }

        if (!GetISystem()->IsDevMode())
        {
            return;
        }

        char vers[128];
        GetISystem()->GetFileVersion().ToString(vers, sizeof(vers));

        const char* sChain = "";
        if (m_nLoadedLevelsCount > 0)
        {
            sChain = " (Chained)";
        }

        AZStd::string text;
        text.format(
            "Game Level Load Time: [%s] Level %s loaded in %.2f seconds%s", vers, m_lastLevelName.c_str(), m_fLastLevelLoadTime, sChain);
        gEnv->pLog->Log(text.c_str());
    }

    //////////////////////////////////////////////////////////////////////////
    void SpawnableLevelSystem::UnloadLevel()
    {
        if (gEnv->IsEditor())
        {
            return;
        }

        if (m_lastLevelName.empty())
        {
            return;
        }

        AZ_TracePrintf("LevelSystem", "UnloadLevel Start\n");
        INDENT_LOG_DURING_SCOPE();

        // Flush core buses. We're about to unload Cry modules and need to ensure we don't have module-owned functions left behind.
        AZ::Data::AssetBus::ExecuteQueuedEvents();
        AZ::TickBus::ExecuteQueuedEvents();
        AZ::MainThreadRenderRequestBus::ExecuteQueuedEvents();

        if (gEnv && gEnv->pSystem)
        {
            // clear all error messages to prevent stalling due to runtime file access check during chainloading
            gEnv->pSystem->ClearErrorMessages();
        }

        if (gEnv && gEnv->pCryPak)
        {
            gEnv->pCryPak->DisableRuntimeFileAccess(false);
        }

        CTimeValue tBegin = gEnv->pTimer->GetAsyncTime();

        // AM: Flush render thread (Flush is not exposed - using EndFrame())
        // We are about to delete resources that could be in use
        if (gEnv->pRenderer)
        {
            gEnv->pRenderer->EndFrame();

            bool isLoadScreenPlaying = false;
    #if AZ_LOADSCREENCOMPONENT_ENABLED
            LoadScreenBus::BroadcastResult(isLoadScreenPlaying, &LoadScreenBus::Events::IsPlaying);
    #endif // if AZ_LOADSCREENCOMPONENT_ENABLED

            // force a black screen as last render command.
            // if load screen is playing do not call this draw as it may lead to a crash due to UI loading code getting
            // pumped while loading the shaders for this draw.
            if (!isLoadScreenPlaying)
            {
                gEnv->pRenderer->BeginFrame();
                gEnv->pRenderer->SetState(GS_BLSRC_SRCALPHA | GS_BLDST_ONEMINUSSRCALPHA | GS_NODEPTHTEST);
                gEnv->pRenderer->Draw2dImage(0, 0, 800, 600, -1, 0.0f, 0.0f, 1.0f, 1.0f, 0.f, 0.0f, 0.0f, 0.0f, 1.0, 0.f);
                gEnv->pRenderer->EndFrame();
            }

            // flush any outstanding texture requests
            gEnv->pRenderer->FlushPendingTextureTasks();
        }

        // Clear level entities and prefab instances.
        EBUS_EVENT(AzFramework::GameEntityContextRequestBus, ResetGameContext);

        if (gEnv->pMovieSystem)
        {
            gEnv->pMovieSystem->Reset(false, false);
            gEnv->pMovieSystem->RemoveAllSequences();
        }

        // Unload level specific audio binary data.
        Audio::SAudioManagerRequestData<Audio::eAMRT_UNLOAD_AFCM_DATA_BY_SCOPE> oAMData(Audio::eADS_LEVEL_SPECIFIC);
        Audio::SAudioRequest oAudioRequestData;
        oAudioRequestData.nFlags = (Audio::eARF_PRIORITY_HIGH | Audio::eARF_EXECUTE_BLOCKING);
        oAudioRequestData.pData = &oAMData;
        Audio::AudioSystemRequestBus::Broadcast(&Audio::AudioSystemRequestBus::Events::PushRequestBlocking, oAudioRequestData);

        // Now unload level specific audio config data.
        Audio::SAudioManagerRequestData<Audio::eAMRT_CLEAR_CONTROLS_DATA> oAMData2(Audio::eADS_LEVEL_SPECIFIC);
        oAudioRequestData.pData = &oAMData2;
        Audio::AudioSystemRequestBus::Broadcast(&Audio::AudioSystemRequestBus::Events::PushRequestBlocking, oAudioRequestData);

        Audio::SAudioManagerRequestData<Audio::eAMRT_CLEAR_PRELOADS_DATA> oAMData3(Audio::eADS_LEVEL_SPECIFIC);
        oAudioRequestData.pData = &oAMData3;
        Audio::AudioSystemRequestBus::Broadcast(&Audio::AudioSystemRequestBus::Events::PushRequestBlocking, oAudioRequestData);

        // Reset the camera to (0,0,0) which is the invalid/uninitialised state
        CCamera defaultCam;
        m_pSystem->SetViewCamera(defaultCam);

        OnUnloadComplete(m_lastLevelName.c_str());

        AzFramework::RootSpawnableInterface::Get()->ReleaseRootSpawnable();

        m_lastLevelName.clear();

        GetISystem()->GetIResourceManager()->UnloadLevel();

        // Force Lua garbage collection (may no longer be needed now the legacy renderer has been removed).
        // Normally the GC step is triggered at the end of this method (by the ESYSTEM_EVENT_LEVEL_POST_UNLOAD event).
        EBUS_EVENT(AZ::ScriptSystemRequestBus, GarbageCollect);

        // Force to clean render resources left after deleting all objects and materials.
        IRenderer* pRenderer = gEnv->pRenderer;
        if (pRenderer)
        {
            pRenderer->FlushRTCommands(true, true, true);

            CryComment("Deleting Render meshes, render resources and flush texture streaming");
            // This may also release some of the materials.
            int flags = FRR_DELETED_MESHES | FRR_FLUSH_TEXTURESTREAMING | FRR_OBJECTS | FRR_RENDERELEMENTS | FRR_RP_BUFFERS | FRR_POST_EFFECTS;

            // Always keep the system resources around in the editor.
            // If a level load fails for any reason, then do not unload the system resources, otherwise we will not have any system resources to
            // continue rendering the console and debug output text.
            if (!gEnv->IsEditor() && !GetLevelLoadFailed())
            {
                flags |= FRR_SYSTEM_RESOURCES;
            }

            pRenderer->FreeResources(flags);
            CryComment("done");
        }

        // Perform level unload procedures for the LyShine UI system
        if (gEnv && gEnv->pLyShine)
        {
            gEnv->pLyShine->OnLevelUnload();
        }

        m_bLevelLoaded = false;

        CTimeValue tUnloadTime = gEnv->pTimer->GetAsyncTime() - tBegin;
        AZ_TracePrintf("LevelSystem", "UnloadLevel End: %.1f sec\n", tUnloadTime.GetSeconds());

        // Must be sent last.
        // Cleanup all containers
        GetISystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_LEVEL_POST_UNLOAD, 0, 0);
        AzFramework::InputChannelRequestBus::Broadcast(&AzFramework::InputChannelRequests::ResetState);

        AzFramework::GameEntityContextEventBus::Broadcast(&AzFramework::GameEntityContextEventBus::Events::OnGameEntitiesReset);
    }

    void SpawnableLevelSystem::OnRootSpawnableAssigned(
        [[maybe_unused]] AZ::Data::Asset<AzFramework::Spawnable> rootSpawnable, [[maybe_unused]] uint32_t generation)
    {
    }

    void SpawnableLevelSystem::OnRootSpawnableReleased([[maybe_unused]] uint32_t generation)
    {
    }

} // namespace LegacyLevelSystem