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engine/cl_parse_event.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "client_pch.h"
+#include "dt_recv_eng.h"
+#include "client_class.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+static ConVar cl_showevents	( "cl_showevents", "0", FCVAR_CHEAT, "Print event firing info in the console" );
+
+//-----------------------------------------------------------------------------
+// Purpose: Show descriptive info about an event in the numbered console area
+// Input  : slot - 
+//			*eventname - 
+//-----------------------------------------------------------------------------
+void CL_DescribeEvent( int slot, CEventInfo *event, const char *eventname )
+{
+	int idx = (slot & 31);
+
+	if ( !cl_showevents.GetInt() )
+		return;
+
+	if ( !eventname )
+		return;
+
+	con_nprint_t n;
+	n.index = idx;
+	n.fixed_width_font = true;
+	n.time_to_live = 4.0f;
+	n.color[0] = 0.8;
+	n.color[1] = 0.8;
+	n.color[2] = 1.0;
+
+	Con_NXPrintf( &n, "%02i %6.3ff %20s %03i bytes", slot, cl.GetTime(), eventname, Bits2Bytes( event->bits ) );
+
+	if ( cl_showevents.GetInt() == 2 )
+	{
+		DevMsg( "%02i %6.3ff %20s %03i bytes\n", slot, cl.GetTime(), eventname, Bits2Bytes( event->bits ) );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Decode raw event data into underlying class structure using the specified data table
+// Input  : *RawData - 
+//			*pToData - 
+//			*pRecvTable - 
+//-----------------------------------------------------------------------------
+void CL_ParseEventDelta( void *RawData, void *pToData, RecvTable *pRecvTable, unsigned int uReadBufferSize )
+{
+	// Make sure we have a decoder
+	assert(pRecvTable->m_pDecoder);
+
+	// Only so much data allowed
+	bf_read fromBuf( "CL_ParseEventDelta->fromBuf", RawData, uReadBufferSize );
+
+	// First, decode all properties as zeros since temp ents are delta'd from zeros.
+	RecvTable_DecodeZeros( pRecvTable, pToData, -1 );
+
+	// Now decode the data from the network on top of that.
+	RecvTable_Decode( pRecvTable, pToData, &fromBuf, -1 );
+
+	// Make sure the server, etc. didn't try to send too much
+	assert(!fromBuf.IsOverflowed());
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Once per frame, walk the client's event slots and look for any events
+//  that are ready for playing.
+//-----------------------------------------------------------------------------
+void CL_FireEvents( void )
+{
+	VPROF("CL_FireEvents");
+	if ( !cl.IsActive() )
+	{
+		cl.events.RemoveAll();
+		return;
+	}
+
+	int i, next;
+	for ( i = cl.events.Head(); i != cl.events.InvalidIndex(); i = next )
+	{
+		next = cl.events.Next( i );
+
+		CEventInfo *ei = &cl.events[ i ];
+		if ( ei->classID == 0 )
+		{
+			cl.events.Remove( i );
+			continue;
+		}
+
+		// Delayed event!
+		if ( ei->fire_delay && ( ei->fire_delay > cl.GetTime() ) )
+			continue;
+
+		bool success = false;
+
+		// Get the receive table if it exists
+		Assert( ei->pClientClass );
+				
+		// Get pointer to the event.
+		if( ei->pClientClass->m_pCreateEventFn )
+		{
+			IClientNetworkable *pCE = ei->pClientClass->m_pCreateEventFn();
+			if(pCE)
+			{
+				// Prepare to copy in the data
+				pCE->PreDataUpdate( DATA_UPDATE_CREATED );
+
+				// Decode data into client event object
+				unsigned int buffer_size = PAD_NUMBER( Bits2Bytes( ei->bits ), 4 );
+				CL_ParseEventDelta( ei->pData, pCE->GetDataTableBasePtr(), ei->pClientClass->m_pRecvTable, buffer_size );
+
+				// Fire the event!!!
+				pCE->PostDataUpdate( DATA_UPDATE_CREATED );
+
+				// Spew to debug area if needed
+				CL_DescribeEvent( i, ei, ei->pClientClass->m_pNetworkName );
+
+				success = true;
+			}
+		}
+
+		if ( !success )
+		{
+			ConDMsg( "Failed to execute event for classId %i\n", ei->classID - 1 );
+		}
+
+		cl.events.Remove( i );
+	}
+}
+
+