Method UnLoadLevel

Code/CryEngine/CryAction/LevelSystem.cpp:2022–2250

/////////////////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////////////
void CLevelSystem::UnLoadLevel()
{
	if (gEnv->IsEditor())
		return;
	if (!m_pLoadingLevelInfo)
		return;

	CryLog("UnLoadLevel Start");
	INDENT_LOG_DURING_SCOPE();

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

	// One last update to execute pending requests.
	// Do this before the EntitySystem resets!
	if (gEnv->pFlowSystem)
	{
		gEnv->pFlowSystem->Update();
	}

	I3DEngine* p3DEngine = gEnv->p3DEngine;
	if (p3DEngine)
	{
		IDeferredPhysicsEventManager* pPhysEventManager = p3DEngine->GetDeferredPhysicsEventManager();
		if (pPhysEventManager)
		{
			// clear deferred physics queues before renderer, since we could have jobs running
			// which access a rendermesh
			pPhysEventManager->ClearDeferredEvents();
		}
	}

	//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();

		// force a black screen as last render command
		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();
	}

	// Disable filecaching during level unloading
	// will be reenabled when we get back to the IIS (frontend directly)
	// or after level loading is finished (via system event system)
	gEnv->pSystem->GetPlatformOS()->AllowOpticalDriveUsage(false);

	if (gEnv->pScriptSystem)
	{
		gEnv->pScriptSystem->ResetTimers();
	}