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game/client/econ/client_community_market.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+
+#include "cbase.h"
+#include "econ_gcmessages.h"
+#include "econ_item_system.h"
+#include "econ_ui.h"
+#include "store/store_panel.h"
+#include "gc_clientsystem.h"
+#include "client_community_market.h"
+
+//-----------------------------------------------------------------------------
+// Purpose:
+//-----------------------------------------------------------------------------
+static const float s_fUpdateTimeInSeconds = 60.0f * 15.0f;
+
+typedef CUtlMap< steam_market_gc_identifier_t, client_market_data_t, unsigned int >	ClientMarketDataMap_t;
+static ClientMarketDataMap_t	s_mapClientMarketData;
+static float					g_fClientMarketDataLastUpdateTime = -s_fUpdateTimeInSeconds;
+
+//-----------------------------------------------------------------------------
+// Purpose:
+//-----------------------------------------------------------------------------
+static void ClientMarketData_Refresh()
+{
+	if ( !EconUI() || !EconUI()->GetStorePanel() )
+		return;
+
+	GCSDK::CProtoBufMsg<CMsgGCClientMarketDataRequest> msg( k_EMsgGCClientRequestMarketData );
+	msg.Body().set_user_currency( EconUI()->GetStorePanel()->GetCurrency() );
+	GCClientSystem()->BSendMessage( msg );
+
+	g_fClientMarketDataLastUpdateTime = engine->Time();
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+//-----------------------------------------------------------------------------
+const client_market_data_t *GetClientMarketData( const steam_market_gc_identifier_t& ident )
+{
+	// If our data is out of date, request fresh data from the GC. We don't need up-to-the-minute
+	// numbers but we don't want to fall too far behind. THe GC itself doesn't update in realtime
+	// so constantly querying for updates isn't really useful. We'll still use whatever data if any
+	// we have for this call.
+	if ( (engine->Time() - g_fClientMarketDataLastUpdateTime) >= s_fUpdateTimeInSeconds )
+	{
+		ClientMarketData_Refresh();
+	}
+
+	// Not having any data on this item isn't an error. We might be requesting something for an
+	// unlistable item, or we might not have current information from the GC yet.
+	if ( s_mapClientMarketData.Count() == 0 )
+		return NULL;
+
+	// Remap this index?
+	steam_market_gc_identifier_t searchIdent = ident;
+	searchIdent.m_unDefIndex = GetItemSchema()->GetCommunityMarketRemappedDefinitionIndex( ident.m_unDefIndex );
+
+	ClientMarketDataMap_t::IndexType_t index = s_mapClientMarketData.Find( searchIdent );
+	if ( index == s_mapClientMarketData.InvalidIndex() )
+		return NULL;
+
+	return &s_mapClientMarketData[index];
+}
+//-----------------------------------------------------------------------------
+const client_market_data_t *GetClientMarketData( item_definition_index_t iItemDef, uint8 unQuality )
+{
+	steam_market_gc_identifier_t ident;
+	ident.m_unDefIndex = iItemDef;
+	ident.m_unQuality = unQuality;
+
+	return GetClientMarketData( ident );
+}
+//-----------------------------------------------------------------------------
+// Purpose:
+//-----------------------------------------------------------------------------
+class CGCClientRequestMarketDataResponse : public GCSDK::CGCClientJob
+{
+public:
+	CGCClientRequestMarketDataResponse( GCSDK::CGCClient *pClient ) : GCSDK::CGCClientJob( pClient ) {}
+
+	virtual bool BYieldingRunGCJob( GCSDK::IMsgNetPacket *pNetPacket )
+	{
+		GCSDK::CProtoBufMsg<CMsgGCClientMarketData> msg( pNetPacket );
+
+		s_mapClientMarketData.RemoveAll();
+		s_mapClientMarketData.SetLessFunc( DefLessFunc( ClientMarketDataMap_t::KeyType_t ) );
+
+		for ( int i = 0; i < msg.Body().entries_size(); i++ )
+		{
+			const CMsgGCClientMarketDataEntry& entry = msg.Body().entries( i );
+
+			steam_market_gc_identifier_t ident;
+			ident.m_unDefIndex = entry.item_def_index();
+			ident.m_unQuality = entry.item_quality();
+
+			client_market_data_t data;
+			data.m_unQuantityAvailable = entry.item_sell_listings();
+			data.m_unLowestPrice = entry.price_in_local_currency();
+
+			s_mapClientMarketData.Insert( ident, data );
+		}
+
+		return true;
+	}
+
+};
+GC_REG_JOB( GCSDK::CGCClient, CGCClientRequestMarketDataResponse, "CGCClientRequestMarketDataResponse", k_EMsgGCClientRequestMarketDataResponse, GCSDK::k_EServerTypeGCClient );