networking

external/steamworks/steamworksexample/PhotonBeam.cpp

@@ -0,0 +1,40 @@
+//========= Copyright © 1996-2008, Valve LLC, All rights reserved. ============
+//
+// Purpose: Class for rendering photon beams
+//
+// $NoKeywords: $
+//=============================================================================
+
+#include "stdafx.h"
+#include "PhotonBeam.h"
+#include "SpaceWar.h"
+
+//-----------------------------------------------------------------------------
+// Purpose: Constructor
+//-----------------------------------------------------------------------------
+CPhotonBeam::CPhotonBeam( IGameEngine *pGameEngine, float xPos, float yPos, DWORD dwBeamColor, float flInitialRotation, float flInitialXVelocity, float flInitialYVelocity ) 
+	: CSpaceWarEntity( pGameEngine, 3, true )
+{
+	// Beams only have a lifetime of 1 second
+	m_ulTickCountToDieAt = m_pGameEngine->GetGameTickCount()+PHOTON_BEAM_LIFETIME_IN_TICKS;
+
+	// Set a really high max velocity for photon beams
+	SetMaximumVelocity( 500 );
+
+	AddLine( -2.0f, -3.0f, -2.0f, 3.0f, dwBeamColor );
+	AddLine( 2.0f, -3.0f, 2.0f, 3.0f, dwBeamColor );
+	SetPosition( xPos, yPos );
+	SetRotationDeltaNextFrame( flInitialRotation );
+	SetVelocity( flInitialXVelocity, flInitialYVelocity );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Update with data from server
+//-----------------------------------------------------------------------------
+void CPhotonBeam::OnReceiveServerUpdate( ServerPhotonBeamUpdateData_t *pUpdateData )
+{
+	SetPosition( pUpdateData->GetXPosition()*m_pGameEngine->GetViewportWidth(), pUpdateData->GetYPosition()*m_pGameEngine->GetViewportHeight() );
+	SetVelocity( pUpdateData->GetXVelocity(), pUpdateData->GetYVelocity() );
+	SetAccumulatedRotation( pUpdateData->GetRotation() );
+}