Method DoTick

src/engine/shared/demo.cpp:654–795

}

void CDemoPlayer::DoTick()
{
	// update ticks
	m_Info.m_PreviousTick = m_Info.m_Info.m_CurrentTick;
	m_Info.m_Info.m_CurrentTick = m_Info.m_NextTick;
	int ChunkTick = m_Info.m_Info.m_CurrentTick;

	UpdateTimes();

	bool GotSnapshot = false;
	while(true)
	{
		int ChunkType, ChunkSize;
		const EReadChunkHeaderResult Result = ReadChunkHeader(&ChunkType, &ChunkSize, &ChunkTick);
		if(Result == CHUNKHEADER_EOF)
		{
			if(m_Info.m_PreviousTick == -1)
			{
				Stop("Empty demo");
			}
			else
			{
				Pause();
				// Stop rendering when reaching end of file
#if defined(CONF_VIDEORECORDER)
				if(m_UseVideo && IVideo::Current())
					Stop();
#endif
			}
			break;
		}
		else if(Result == CHUNKHEADER_ERROR)
		{
			Stop("Error reading chunk header");
			break;
		}

		// read the chunk
		int DataSize = 0;
		if(ChunkSize)
		{
			if(io_read(m_File, m_aCompressedSnapshotData, ChunkSize) != (unsigned)ChunkSize)
			{
				Stop("Error reading chunk data");
				break;
			}

			DataSize = CNetBase::Decompress(m_aCompressedSnapshotData, ChunkSize, m_aDecompressedSnapshotData, sizeof(m_aDecompressedSnapshotData));
			if(DataSize < 0)
			{
				Stop("Error during network decompression");
				break;
			}

			DataSize = CVariableInt::Decompress(m_aDecompressedSnapshotData, DataSize, m_aChunkData, sizeof(m_aChunkData));
			if(DataSize < 0)
			{
				Stop("Error during intpack decompression");