Method Load

src/engine/shared/demo.cpp:815–881

}

int CDemoPlayer::Load(class IStorage *pStorage, class IConsole *pConsole, const char *pFilename, int StorageType)
{
	dbg_assert(m_File == 0, "Demo player already playing");

	m_pConsole = pConsole;
	str_copy(m_aFilename, pFilename);
	str_copy(m_aErrorMessage, "");

	if(m_pConsole)
	{
		char aBuf[32 + IO_MAX_PATH_LENGTH];
		str_format(aBuf, sizeof(aBuf), "Loading demo '%s'", pFilename);
		m_pConsole->Print(IConsole::OUTPUT_LEVEL_STANDARD, "demo_player", aBuf);
	}

	// clear the playback info
	mem_zero(&m_Info, sizeof(m_Info));
	m_Info.m_Info.m_FirstTick = -1;
	m_Info.m_Info.m_LastTick = -1;
	m_Info.m_NextTick = -1;
	m_Info.m_Info.m_CurrentTick = -1;
	m_Info.m_PreviousTick = -1;
	m_Info.m_Info.m_Speed = 1;
	m_SpeedIndex = DEMO_SPEED_INDEX_DEFAULT;
	m_LastSnapshotDataSize = -1;

	if(!GetDemoInfo(pStorage, m_pConsole, pFilename, StorageType, &m_Info.m_Header, &m_Info.m_TimelineMarkers, &m_MapInfo, &m_File, m_aErrorMessage, sizeof(m_aErrorMessage)))
	{
		str_copy(m_aFilename, "");
		return -1;
	}
	m_Sixup = str_startswith(m_Info.m_Header.m_aNetversion, "0.7");

	// save byte offset of map for later use
	m_MapOffset = io_tell(m_File);
	if(m_MapOffset < 0 || io_skip(m_File, m_MapInfo.m_Size) != 0)
	{
		Stop("Error skipping map data");
		return -1;
	}

	if(m_Info.m_Header.m_Version > gs_OldVersion)
	{
		// get timeline markers
		int Num = bytes_be_to_uint(m_Info.m_TimelineMarkers.m_aNumTimelineMarkers);
		m_Info.m_Info.m_NumTimelineMarkers = std::clamp<int>(Num, 0, MAX_TIMELINE_MARKERS);
		for(int i = 0; i < m_Info.m_Info.m_NumTimelineMarkers; i++)
		{
			m_Info.m_Info.m_aTimelineMarkers[i] = bytes_be_to_uint(m_Info.m_TimelineMarkers.m_aTimelineMarkers[i]);
		}
	}

	// Scan the file for interesting points
	if(ScanFile() == EScanFileResult::ERROR_UNRECOVERABLE)
	{
		Stop("Error scanning demo file");
		return -1;
	}