General:

*         Upgraded Steamworks SDK to v1.29
*         Fixed mod compatibility problem with Multiplayer Base that was introduced in September.
*         In Hammer, while using the Vertex Tool, pressing CTRL+B will snap selected vertices to the grid.

Virtual Reality:
*         Mods that support virtual reality now need to have a line in gameinfo.txt that says “supportsvr 1”. This indicates to gameui and engine that certain UI should be enabled.
*         VR-enabled mods will now start up in VR mode when launched from Steam’s VR mode.

Windows:
*         Upgraded to Visual Studio 2013. If you need to build projects for VS 2010, add /2010 to your VPC command line.

OSX:
*         Upgraded to XCode 5.

27 files changed, 98 insertions, 71 deletions

diff --git a/mp/src/game/client/beamdraw.cpp b/mp/src/game/client/beamdraw.cpp
index 2bba8efe..8fc7d499 100644
--- a/mp/src/game/client/beamdraw.cpp
+++ b/mp/src/game/client/beamdraw.cpp
@@ -589,7 +589,7 @@ void DrawTeslaSegs( int noise_divisions, float *prgNoise, const model_t* spritem
 			curSeg.m_flWidth = ((fraction*(endWidth-startWidth))+startWidth) * 2;
 
 		// Reduce the width by the current number of branches we've had
-		for ( int j = 0; i < iBranches; j++ )
+		for ( int j = 0; j < iBranches; j++ )
 		{
 			curSeg.m_flWidth *= 0.5;
 		}
@@ -619,7 +619,7 @@ void DrawTeslaSegs( int noise_divisions, float *prgNoise, const model_t* spritem
 
 				// Reduce the end width by the current number of branches we've had
 				flEndWidth = endWidth;
-				for ( int j = 0; i < iBranches; j++ )
+				for ( int j = 0; j < iBranches; j++ )
 				{
 					flEndWidth *= 0.5;
 				}
diff --git a/mp/src/game/client/c_baseanimating.cpp b/mp/src/game/client/c_baseanimating.cpp
index c7cc08b4..c41ff46b 100644
--- a/mp/src/game/client/c_baseanimating.cpp
+++ b/mp/src/game/client/c_baseanimating.cpp
@@ -3687,6 +3687,8 @@ void C_BaseAnimating::FireEvent( const Vector& origin, const QAngle& angles, int
 			if ( token ) 
 			{
 				const char* mtoken = ModifyEventParticles( token );
+				if ( !mtoken || mtoken[0] == '\0' )
+					return;
 				Q_strncpy( szParticleEffect, mtoken, sizeof(szParticleEffect) );
 			}
 
@@ -5298,8 +5300,8 @@ void C_BaseAnimating::ResetSequenceInfo( void )
 	m_bSequenceFinished = false;
 	m_flLastEventCheck = 0;
 
-	m_nNewSequenceParity = ( ++m_nNewSequenceParity ) & EF_PARITY_MASK;
-	m_nResetEventsParity = ( ++m_nResetEventsParity ) & EF_PARITY_MASK;
+	m_nNewSequenceParity = ( m_nNewSequenceParity + 1 ) & EF_PARITY_MASK;
+	m_nResetEventsParity = ( m_nResetEventsParity + 1 ) & EF_PARITY_MASK;
 	
 	// FIXME: why is this called here?  Nothing should have changed to make this nessesary
 	SetEventIndexForSequence( pStudioHdr->pSeqdesc( GetSequence() ) );
diff --git a/mp/src/game/client/c_colorcorrection.cpp b/mp/src/game/client/c_colorcorrection.cpp
index 56f1a65e..6960031d 100644
--- a/mp/src/game/client/c_colorcorrection.cpp
+++ b/mp/src/game/client/c_colorcorrection.cpp
@@ -122,7 +122,7 @@ void C_ColorCorrection::ClientThink()
 		return;
 	}
 
-	CBaseEntity *pPlayer = UTIL_PlayerByIndex(1);
+	C_BaseEntity *pPlayer = C_BasePlayer::GetLocalPlayer();
 	if( !pPlayer )
 		return;
 
diff --git a/mp/src/game/client/c_func_breakablesurf.cpp b/mp/src/game/client/c_func_breakablesurf.cpp
index 03176315..3118cd5e 100644
--- a/mp/src/game/client/c_func_breakablesurf.cpp
+++ b/mp/src/game/client/c_func_breakablesurf.cpp
@@ -154,7 +154,7 @@ private:
 		Assert( type < NUM_EDGE_STYLES );
 		Assert( type >= 0 );
 		// Clear old value
-		m_nPanelBits[ w ][ h ] &= ( ~0x03 << 2 );
+		m_nPanelBits[ w ][ h ] &= 0xF0; // ( ~0x03 << 2 ); Left shifting a negative value has undefined behavior. Use the constant 0xF0 instead.
 		// Insert new value
 		m_nPanelBits[ w ][ h ] |= ( type << 2 );
 	}
diff --git a/mp/src/game/client/c_te_bloodstream.cpp b/mp/src/game/client/c_te_bloodstream.cpp
index 2c16e3a1..d543d111 100644
--- a/mp/src/game/client/c_te_bloodstream.cpp
+++ b/mp/src/game/client/c_te_bloodstream.cpp
@@ -114,7 +114,7 @@ void TE_BloodStream( IRecipientFilter& filter, float delay,
 	float		arc = 0.05;
 	int			count, count2;
 	float		num;
-	int			speedCopy = amount;
+	float		speedCopy = amount;
 	
 	Vector dir;
 	VectorCopy( *direction, dir );
diff --git a/mp/src/game/client/c_te_decal.cpp b/mp/src/game/client/c_te_decal.cpp
index 4ea42e5e..f0212ee1 100644
--- a/mp/src/game/client/c_te_decal.cpp
+++ b/mp/src/game/client/c_te_decal.cpp
@@ -139,7 +139,7 @@ void TE_Decal( IRecipientFilter& filter, float delay,
 		// Only decal the world + brush models
 		// Here we deal with decals on entities.
 		C_BaseEntity* ent;
-		if ( ( ent = cl_entitylist->GetEnt( entity ) ) == false )
+		if ( ( ent = cl_entitylist->GetEnt( entity ) ) == NULL )
 			return;
 
 		ent->AddDecal( *start, *pos, *pos, hitbox, 
diff --git a/mp/src/game/client/cdll_client_int.cpp b/mp/src/game/client/cdll_client_int.cpp
index b5a53e72..10cce078 100644
--- a/mp/src/game/client/cdll_client_int.cpp
+++ b/mp/src/game/client/cdll_client_int.cpp
@@ -1717,7 +1717,11 @@ void CHLClient::LevelShutdown( void )
 
 	messagechars->Clear();
 
+#ifndef TF_CLIENT_DLL
+	// don't want to do this for TF2 because we have particle systems in our
+	// character loadout screen that can be viewed when we're not connected to a server
 	g_pParticleSystemMgr->UncacheAllParticleSystems();
+#endif
 	UncacheAllMaterials();
 
 #ifdef _XBOX
diff --git a/mp/src/game/client/client_virtualreality.cpp b/mp/src/game/client/client_virtualreality.cpp
index d729210e..fb6e4417 100644
--- a/mp/src/game/client/client_virtualreality.cpp
+++ b/mp/src/game/client/client_virtualreality.cpp
@@ -21,6 +21,7 @@
 #include "vgui_controls/Controls.h"
 #include "tier0/vprof_telemetry.h"
 #include <time.h>
+#include "steam/steam_api.h"
 
 const char *COM_GetModDirectory(); // return the mod dir (rather than the complete -game param, which can be a path)
 
@@ -260,6 +261,8 @@ CClientVirtualReality::CClientVirtualReality()
 	m_rtLastMotionSample = 0;
 	m_bMotionUpdated = false;
 
+	m_bForceVRMode = false; 
+
 #if defined( USE_SDL )
     m_nNonVRSDLDisplayIndex = 0;
 #endif
@@ -1363,28 +1366,32 @@ void CClientVirtualReality::Activate()
 	if( !g_pSourceVR )
 		return;
 
-	// see if VR mode is even enabled
-	if( materials->GetCurrentConfigForVideoCard().m_nVRModeAdapter == -1 )
+	// These checks don't apply if we're in VR mode because Steam said so.
+	if ( !m_bForceVRMode )
 	{
-		Warning( "Enable VR mode in the video options before trying to use it.\n" );
-		return;
-	}
+		// see if VR mode is even enabled
+		if ( materials->GetCurrentConfigForVideoCard().m_nVRModeAdapter == -1 )
+		{
+			Warning( "Enable VR mode in the video options before trying to use it.\n" );
+			return;
+		}
 
-	// See if we have an actual adapter
-	int32 nVRModeAdapter = g_pSourceVR->GetVRModeAdapter();
-	if( nVRModeAdapter == -1 )
-	{
-		Warning( "Unable to get VRMode adapter from OpenVR. VR mode cannot be enabled. Try restarting and then enabling VR again.\n" );
-		return;
-	}
+		// See if we have an actual adapter
+		int32 nVRModeAdapter = g_pSourceVR->GetVRModeAdapter();
+		if ( nVRModeAdapter == -1 )
+		{
+			Warning( "Unable to get VRMode adapter from OpenVR. VR mode cannot be enabled. Try restarting and then enabling VR again.\n" );
+			return;
+		}
 
-	// we can only activate if we've got a VR device
-	if( materials->GetCurrentConfigForVideoCard().m_nVRModeAdapter != nVRModeAdapter )
-	{
-		Warning( "VR Mode expects adapter %d which is different from %d which we are currently using. Try restarting and enabling VR mode again.\n",
-			nVRModeAdapter, materials->GetCurrentConfigForVideoCard().m_nVRModeAdapter );
-		engine->ExecuteClientCmd( "mat_enable_vrmode 0\n" );
-		return;
+		// we can only activate if we've got a VR device
+		if ( materials->GetCurrentConfigForVideoCard().m_nVRModeAdapter != nVRModeAdapter )
+		{
+			Warning( "VR Mode expects adapter %d which is different from %d which we are currently using. Try restarting and enabling VR mode again.\n",
+				nVRModeAdapter, materials->GetCurrentConfigForVideoCard().m_nVRModeAdapter );
+			engine->ExecuteClientCmd( "mat_enable_vrmode 0\n" );
+			return;
+		}
 	}
 
 
@@ -1429,18 +1436,22 @@ void CClientVirtualReality::Activate()
 	int nViewportWidth, nViewportHeight;
 
 	g_pSourceVR->GetViewportBounds( ISourceVirtualReality::VREye_Left, NULL, NULL, &nViewportWidth, &nViewportHeight );
-	vgui::surface()->SetFullscreenViewportAndRenderTarget( 0, 0, nViewportWidth, nViewportHeight, g_pSourceVR->GetRenderTarget( ISourceVirtualReality::VREye_Left, ISourceVirtualReality::RT_Color ) );
+	g_pMatSystemSurface->SetFullscreenViewportAndRenderTarget( 0, 0, nViewportWidth, nViewportHeight, g_pSourceVR->GetRenderTarget( ISourceVirtualReality::VREye_Left, ISourceVirtualReality::RT_Color ) );
 
 	vgui::ivgui()->SetVRMode( true );
 
-	VRRect_t rect;
-	if( g_pSourceVR->GetDisplayBounds( &rect ) )
+	// we can skip this extra mode change if we've always been in VR mode
+	if ( !m_bForceVRMode )
 	{
+		VRRect_t rect;
+		if ( g_pSourceVR->GetDisplayBounds( &rect ) )
+		{
 
-		// set mode
-		char szCmd[ 256 ];
-		Q_snprintf( szCmd, sizeof( szCmd ), "mat_setvideomode %i %i %i\n", rect.nWidth, rect.nHeight, vr_force_windowed.GetBool()? 1 : 0 );
-		engine->ClientCmd_Unrestricted( szCmd );
+			// set mode
+			char szCmd[256];
+			Q_snprintf( szCmd, sizeof(szCmd), "mat_setvideomode %i %i %i\n", rect.nWidth, rect.nHeight, vr_force_windowed.GetBool() ? 1 : 0 );
+			engine->ClientCmd_Unrestricted( szCmd );
+		}
 	}
 }
 
@@ -1455,7 +1466,7 @@ void CClientVirtualReality::Deactivate()
 
 	g_pMatSystemSurface->ForceScreenSizeOverride(false, 0, 0 );
 	g_pMaterialSystem->GetRenderContext()->Viewport( 0, 0, m_nNonVRWidth, m_nNonVRHeight );
-	vgui::surface()->SetFullscreenViewportAndRenderTarget( 0, 0, m_nNonVRWidth, m_nNonVRHeight, NULL );
+	g_pMatSystemSurface->SetFullscreenViewportAndRenderTarget( 0, 0, m_nNonVRWidth, m_nNonVRHeight, NULL );
 
     static ConVarRef cl_software_cursor( "cl_software_cursor" );
     vgui::surface()->SetSoftwareCursor( cl_software_cursor.GetBool() );
@@ -1499,7 +1510,10 @@ void CClientVirtualReality::Deactivate()
 // Called when startup is complete
 void CClientVirtualReality::StartupComplete()
 {
-	if( vr_activate_default.GetBool() )
+	if ( g_pSourceVR )
+		m_bForceVRMode = g_pSourceVR->ShouldForceVRMode();
+
+	if ( vr_activate_default.GetBool( ) || m_bForceVRMode )
 		Activate();
 }
 
diff --git a/mp/src/game/client/client_virtualreality.h b/mp/src/game/client/client_virtualreality.h
index 9aadfeb3..3a8c9469 100644
--- a/mp/src/game/client/client_virtualreality.h
+++ b/mp/src/game/client/client_virtualreality.h
@@ -147,6 +147,7 @@ private:
 	int				m_iAlignTorsoAndViewToWeaponCountdown;
 
 	bool			m_bMotionUpdated;
+	bool			m_bForceVRMode;
 
 	RTime32			m_rtLastMotionSample;
 
diff --git a/mp/src/game/client/clientmode_shared.cpp b/mp/src/game/client/clientmode_shared.cpp
index b6dee29c..5d10db6c 100644
--- a/mp/src/game/client/clientmode_shared.cpp
+++ b/mp/src/game/client/clientmode_shared.cpp
@@ -228,9 +228,9 @@ static void __MsgFunc_VGUIMenu( bf_read &msg )
 			&& keys->GetInt( "type", 0 ) == 2 // URL message type
 		) {
 			const char *pszURL = keys->GetString( "msg", "" );
-			if ( Q_strncmp( pszURL, "http://", 7 ) != 0 && Q_strncmp( pszURL, "https://", 8 ) != 0 )
+			if ( Q_strncmp( pszURL, "http://", 7 ) != 0 && Q_strncmp( pszURL, "https://", 8 ) != 0 && Q_stricmp( pszURL, "about:blank" ) != 0 )
 			{
-				Warning( "Blocking MOTD URL '%s'; must begin with 'http://' or 'https://'\n", pszURL );
+				Warning( "Blocking MOTD URL '%s'; must begin with 'http://' or 'https://' or be about:blank\n", pszURL );
 				keys->deleteThis();
 				return;
 			}
diff --git a/mp/src/game/client/detailobjectsystem.cpp b/mp/src/game/client/detailobjectsystem.cpp
index 7aa871ea..3e211bb0 100644
--- a/mp/src/game/client/detailobjectsystem.cpp
+++ b/mp/src/game/client/detailobjectsystem.cpp
@@ -1477,7 +1477,7 @@ void CDetailObjectSystem::LevelInitPreEntity()
 		PrecacheMaterial( DETAIL_SPRITE_MATERIAL );
 		IMaterial *pMat = m_DetailSpriteMaterial;
 		// adjust for non-square textures (cropped)
-		float flRatio = pMat->GetMappingWidth() / pMat->GetMappingHeight();
+		float flRatio = (float)( pMat->GetMappingWidth() ) / pMat->GetMappingHeight();
 		if ( flRatio > 1.0 )
 		{
 			for( int i = 0; i<m_DetailSpriteDict.Count(); i++ )
diff --git a/mp/src/game/client/flashlighteffect.h b/mp/src/game/client/flashlighteffect.h
index 6d5282ba..d291c382 100644
--- a/mp/src/game/client/flashlighteffect.h
+++ b/mp/src/game/client/flashlighteffect.h
@@ -18,7 +18,7 @@ class CFlashlightEffect
 public:
 
 	CFlashlightEffect(int nEntIndex = 0);
-	~CFlashlightEffect();
+	virtual ~CFlashlightEffect();
 
 	virtual void UpdateLight(const Vector &vecPos, const Vector &vecDir, const Vector &vecRight, const Vector &vecUp, int nDistance);
 	void TurnOn();
diff --git a/mp/src/game/client/game_controls/buymenu.cpp b/mp/src/game/client/game_controls/buymenu.cpp
index 40cbeab7..4ae693ae 100644
--- a/mp/src/game/client/game_controls/buymenu.cpp
+++ b/mp/src/game/client/game_controls/buymenu.cpp
@@ -86,7 +86,6 @@ void CBuyMenu::ShowPanel(bool bShow)
 void CBuyMenu::Update()
 {
 	//Don't need to do anything, but do need to implement this function as base is pure virtual
-	NULL;
 }
 void CBuyMenu::OnClose()
 {
diff --git a/mp/src/game/client/hl2/hud_weaponselection.cpp b/mp/src/game/client/hl2/hud_weaponselection.cpp
index 9d223169..f5600705 100644
--- a/mp/src/game/client/hl2/hud_weaponselection.cpp
+++ b/mp/src/game/client/hl2/hud_weaponselection.cpp
@@ -598,13 +598,13 @@ void CHudWeaponSelection::Paint()
 
 			// bucket style
 			int screenCenterX = (int) fCenterX;
-			int screenCenterY = (int) fCenterY - 15; // Height isn't quite screen height, so adjust for center alignement
+			int screenCenterY = (int) fCenterY - 15; // Height isn't quite screen height, so adjust for center alignment
 
 			// Modifiers for the four directions. Used to change the x and y offsets
 			// of each box based on which bucket we're drawing. Bucket directions are
 			// 0 = UP, 1 = RIGHT, 2 = DOWN, 3 = LEFT
-			int xModifiers[] = { 0, 1, 0, -1 };
-			int yModifiers[] = { -1, 0, 1, 0 };
+			int xModifiers[] = { 0, 1, 0, -1, -1, 1 };
+			int yModifiers[] = { -1, 0, 1, 0, 1, 1 };
 
 			// Draw the four buckets
 			for ( int i = 0; i < MAX_WEAPON_SLOTS; ++i )
@@ -1453,7 +1453,7 @@ void CHudWeaponSelection::SelectWeaponSlot( int iSlot )
 		return;
 
 	// Don't try and read past our possible number of slots
-	if ( iSlot > MAX_WEAPON_SLOTS )
+	if ( iSlot >= MAX_WEAPON_SLOTS )
 		return;
 	
 	// Make sure the player's allowed to switch weapons
diff --git a/mp/src/game/client/hud.cpp b/mp/src/game/client/hud.cpp
index 1baad2e1..af50b187 100644
--- a/mp/src/game/client/hud.cpp
+++ b/mp/src/game/client/hud.cpp
@@ -512,7 +512,7 @@ void CHud::Shutdown( void )
 
 
 //-----------------------------------------------------------------------------
-// Purpose: LevelInit's called whenever a new level's starting
+// Purpose: LevelInit's called whenever a new level is starting
 //-----------------------------------------------------------------------------
 void CHud::LevelInit( void )
 {
@@ -533,11 +533,11 @@ void CHud::LevelInit( void )
 }
 
 //-----------------------------------------------------------------------------
-// Purpose: LevelShutdown's called whenever a level's finishing
+// Purpose: LevelShutdown's called whenever a level is finishing
 //-----------------------------------------------------------------------------
 void CHud::LevelShutdown( void )
 {
-	// Tell all the registered hud elements to LevelInit
+	// Tell all the registered hud elements to LevelShutdown
 	for ( int i = 0; i < m_HudList.Size(); i++ )
 	{
 		m_HudList[i]->LevelShutdown();
diff --git a/mp/src/game/client/hud.h b/mp/src/game/client/hud.h
index 7b637c64..b623a3eb 100644
--- a/mp/src/game/client/hud.h
+++ b/mp/src/game/client/hud.h
@@ -107,9 +107,9 @@ public:
 	void						VidInit( void );
 	// Shutdown's called when the engine's shutting down
 	void						Shutdown( void );
-	// LevelInit's called whenever a new level's starting
+	// LevelInit's called whenever a new level is starting
 	void						LevelInit( void );
-	// LevelShutdown's called whenever a level's finishing
+	// LevelShutdown's called whenever a level is finishing
 	void						LevelShutdown( void );
 	
 	void						ResetHUD( void );
diff --git a/mp/src/game/client/hud_vote.cpp b/mp/src/game/client/hud_vote.cpp
index 55b8f389..659669a0 100644
--- a/mp/src/game/client/hud_vote.cpp
+++ b/mp/src/game/client/hud_vote.cpp
@@ -662,7 +662,8 @@ void CVoteSetupDialog::OnItemSelected( vgui::Panel *panel )
 				for ( int index = 0; index < m_VoteIssuesPopFiles.Count(); index++ )
 				{
 					// Don't show the current pop file
-					if ( TFObjectiveResource()->GetMvMPopFileName() == '\0' )
+					const char *pszPopFileName = TFObjectiveResource()->GetMvMPopFileName();
+					if ( !pszPopFileName || !pszPopFileName[0] )
 					{
 						// Use the map name
 						char szShortMapName[ MAX_MAP_NAME ];
diff --git a/mp/src/game/client/hudelement.h b/mp/src/game/client/hudelement.h
index e6de48b9..b903de5d 100644
--- a/mp/src/game/client/hudelement.h
+++ b/mp/src/game/client/hudelement.h
@@ -36,9 +36,9 @@ public:
 	// called whenever the video mode changes, and whenever Init() would be called, so the hud can vid init itself
 	virtual void				VidInit( void ) { return; }
 
-	// LevelInit's called whenever a new level's starting
+	// LevelInit's called whenever a new level is starting
 	virtual void				LevelInit( void ) { return; };
-	// LevelShutdown's called whenever a level's finishing
+	// LevelShutdown's called whenever a level is finishing
 	virtual void				LevelShutdown( void ) { return; };
 
 	// called whenever the hud receives "reset" message, which is (usually) every time the client respawns after getting killed
diff --git a/mp/src/game/client/in_joystick.cpp b/mp/src/game/client/in_joystick.cpp
index 2f0e3dad..71d03a08 100644
--- a/mp/src/game/client/in_joystick.cpp
+++ b/mp/src/game/client/in_joystick.cpp
@@ -846,6 +846,8 @@ void CInput::JoyStickMove( float frametime, CUserCmd *cmd )
 	{
 		angle = m_flPreviousJoystickYaw * joy_yawsensitivity.GetFloat() * aspeed * 180.0;
 	}
+
+	angle = JoyStickAdjustYaw( angle );
 	viewangles[YAW] += angle;
 	cmd->mousedx = angle;
 
diff --git a/mp/src/game/client/input.h b/mp/src/game/client/input.h
index 356c7532..e34b82db 100644
--- a/mp/src/game/client/input.h
+++ b/mp/src/game/client/input.h
@@ -141,6 +141,7 @@ private:
 	void		ControllerMove ( float frametime, CUserCmd *cmd );
 	void		JoyStickMove ( float frametime, CUserCmd *cmd );
 	float		ScaleAxisValue( const float axisValue, const float axisThreshold );
+	virtual float JoyStickAdjustYaw( float flSpeed ) { return flSpeed; }
 
 	// Call this to get the cursor position. The call will be logged in the VCR file if there is one.
 	void		GetMousePos(int &x, int &y);
diff --git a/mp/src/game/client/prediction.cpp b/mp/src/game/client/prediction.cpp
index 7e00732c..6646f8f9 100644
--- a/mp/src/game/client/prediction.cpp
+++ b/mp/src/game/client/prediction.cpp
@@ -931,7 +931,8 @@ void CPrediction::SetIdealPitch ( C_BasePlayer *player, const Vector& origin, co
 	Vector	top, bottom;
 	float	floor_height[MAX_FORWARD];
 	int		i, j;
-	int		step, dir, steps;
+	float	step, dir;
+	int		steps;
 	trace_t tr;
 
 	if ( player->GetGroundEntity() == NULL )
diff --git a/mp/src/game/client/replay/replayyoutubeapi.cpp b/mp/src/game/client/replay/replayyoutubeapi.cpp
index 399d12ca..faab2e95 100644
--- a/mp/src/game/client/replay/replayyoutubeapi.cpp
+++ b/mp/src/game/client/replay/replayyoutubeapi.cpp
@@ -24,7 +24,7 @@
 #include "confirm_dialog.h"
 #include "replay/vgui/replaybrowserdetailspanel.h"
 
-#include "base_gcmessages.h"
+#include "base_gcmessages.pb.h"
 
 #include "youtubeapi.h"
 #include "steamworks_gamestats.h"
diff --git a/mp/src/game/client/sixense/in_sixense_gesture_bindings.cpp b/mp/src/game/client/sixense/in_sixense_gesture_bindings.cpp
index 7ede9ba5..0f0f7105 100644
--- a/mp/src/game/client/sixense/in_sixense_gesture_bindings.cpp
+++ b/mp/src/game/client/sixense/in_sixense_gesture_bindings.cpp
@@ -879,10 +879,6 @@ bool SixenseGestureBindings::ActionTokenToStr( sixenseUtils::IButtonStates::Acti
 	{
 		Q_snprintf( buf, buflen, "tilt_gesture" );
 	}
-	else if( action == sixenseUtils::IButtonStates::ACTION_BUTTON_PRESS ) 
-	{
-		Q_snprintf( buf, buflen, "button_press" );
-	} 
 	else if( action == sixenseUtils::IButtonStates::ACTION_TRIGGER_PRESS ) 
 	{
 		Q_snprintf( buf, buflen, "trigger_press" );
diff --git a/mp/src/game/client/vgui_fpspanel.cpp b/mp/src/game/client/vgui_fpspanel.cpp
index a44dde34..aec28add 100644
--- a/mp/src/game/client/vgui_fpspanel.cpp
+++ b/mp/src/game/client/vgui_fpspanel.cpp
@@ -189,12 +189,12 @@ void GetFPSColor( int nFps, unsigned char ucColor[3] )
 	if ( IsPC() && g_pMaterialSystemHardwareConfig->GetDXSupportLevel() >= 95 )
 	{
 		nFPSThreshold1 = 60;
-		nFPSThreshold1 = 50;
+		nFPSThreshold2 = 50;
 	}
 	else if ( IsX360() || g_pMaterialSystemHardwareConfig->GetDXSupportLevel() >= 90 )
 	{
 		nFPSThreshold1 = 30;
-		nFPSThreshold1 = 25;
+		nFPSThreshold2 = 25;
 	}
 
 	if ( nFps >= nFPSThreshold1 )
diff --git a/mp/src/game/client/vgui_messagechars.cpp b/mp/src/game/client/vgui_messagechars.cpp
index 547164f6..1d1410f1 100644
--- a/mp/src/game/client/vgui_messagechars.cpp
+++ b/mp/src/game/client/vgui_messagechars.cpp
@@ -235,9 +235,10 @@ int CMessageCharsPanel::AddText(
 
 	Assert( !msg->text );
 
-	msg->text = new char[ Q_strlen( data ) + 1 ];
+	int textLength = Q_strlen( data ) + 1;
+	msg->text = new char[ textLength ];
 	Assert( msg->text );
-	Q_strncpy( msg->text, data, sizeof( msg->text ) );
+	Q_strncpy( msg->text, data, textLength );
 
 	if ( flTime )
 		msg->fTTL = gpGlobals->curtime + flTime;
diff --git a/mp/src/game/client/viewpostprocess.cpp b/mp/src/game/client/viewpostprocess.cpp
index 3f74acdc..39c2237e 100644
--- a/mp/src/game/client/viewpostprocess.cpp
+++ b/mp/src/game/client/viewpostprocess.cpp
@@ -1885,7 +1885,8 @@ static void DrawPyroVignette( int nDestX, int nDestY, int nWidth, int nHeight,	/
 
 	if ( pyro_vignette.GetInt() > 1 )
 	{
-		Vector2D vMaxSize( ( float )nScreenWidth / ( float )nScreenWidth / NUM_PYRO_SEGMENTS * 2.0f, ( float )nScreenHeight / ( float )nScreenHeight / NUM_PYRO_SEGMENTS * 2.0f );
+		float flPyroSegments = 2.0f / NUM_PYRO_SEGMENTS;
+		Vector2D vMaxSize( flPyroSegments, flPyroSegments );
 
 		if ( !bInit )
 		{
diff --git a/mp/src/game/client/viewrender.cpp b/mp/src/game/client/viewrender.cpp
index a9ef4eb8..a629071b 100644
--- a/mp/src/game/client/viewrender.cpp
+++ b/mp/src/game/client/viewrender.cpp
@@ -2248,7 +2248,7 @@ void CViewRender::RenderView( const CViewSetup &view, int nClearFlags, int whatT
 		// let vgui know where to render stuff for the forced-to-framebuffer panels
 		if( UseVR() )
 		{
-			vgui::surface()->SetFullscreenViewportAndRenderTarget( viewFramebufferX, viewFramebufferY, viewFramebufferWidth, viewFramebufferHeight, saveRenderTarget );
+			g_pMatSystemSurface->SetFullscreenViewportAndRenderTarget( viewFramebufferX, viewFramebufferY, viewFramebufferWidth, viewFramebufferHeight, saveRenderTarget );
 		}
 
 		// clear the render target if we need to
@@ -3885,7 +3885,7 @@ static void DrawOpaqueRenderables_DrawStaticProps( CClientRenderablesList::CEntr
 	for( CClientRenderablesList::CEntry *itEntity = pEntitiesBegin; itEntity < pEntitiesEnd; ++ itEntity )
 	{
 		if ( itEntity->m_pRenderable )
-			NULL;
+			/**/;
 		else
 			continue;
 
@@ -3935,7 +3935,7 @@ void CRendering3dView::DrawOpaqueRenderables( ERenderDepthMode DepthMode )
 	RopeManager()->ResetRenderCache();
 	g_pParticleSystemMgr->ResetRenderCache();
 
-	bool const bDrawopaquestaticpropslast = r_drawopaquestaticpropslast.GetBool();
+	//bool const bDrawopaquestaticpropslast = r_drawopaquestaticpropslast.GetBool();
 
 	
 	//
@@ -4101,16 +4101,20 @@ void CRendering3dView::DrawOpaqueRenderables( ERenderDepthMode DepthMode )
 
 		for ( int bucket = 0; bucket < RENDER_GROUP_CFG_NUM_OPAQUE_ENT_BUCKETS; ++ bucket )
 		{
-			if ( bDrawopaquestaticpropslast )
+			// PVS-Studio pointed out that the two sides of the if/else were identical. Fixing
+			// this long-broken behavior would change rendering, so I fixed the code but
+			// commented out the new behavior. Uncomment the if statement and else block
+			// when needed.
+			//if ( bDrawopaquestaticpropslast )
 			{
 				DrawOpaqueRenderables_Range( pEnts[bucket][0], pEnts[bucket][1], DepthMode );
 				DrawOpaqueRenderables_DrawStaticProps( pProps[bucket][0], pProps[bucket][1], DepthMode );
 			}
-			else
+			/*else
 			{
-				DrawOpaqueRenderables_Range( pEnts[bucket][0], pEnts[bucket][1], DepthMode );
 				DrawOpaqueRenderables_DrawStaticProps( pProps[bucket][0], pProps[bucket][1], DepthMode );
-			}
+				DrawOpaqueRenderables_Range( pEnts[bucket][0], pEnts[bucket][1], DepthMode );
+			}*/
 		}