1HEADmaster

1 files changed, 892 insertions, 0 deletions

diff --git a/game/server/NavUI/NavUI.cpp b/game/server/NavUI/NavUI.cpp
new file mode 100644
index 0000000..ce93f12
--- /dev/null
+++ b/game/server/NavUI/NavUI.cpp
@@ -0,0 +1,892 @@
+//--------------------------------------------------------------------------------------------------------
+//========= Copyright Valve Corporation, All rights reserved. ============//
+
+#include "cbase.h"
+
+#ifdef SERVER_USES_VGUI
+
+#include "NavUI.h"
+#include "filesystem.h"
+#include "tier0/icommandline.h"
+#include "vgui_gamedll_int.h"
+#include "ienginevgui.h"
+#include "IGameUIFuncs.h"
+#include "fmtstr.h"
+#include "NavMenu.h"
+#include <vgui_controls/MenuButton.h>
+
+#include "SelectionTool.h"
+#include "MeshTool.h"
+#include "AttributeTool.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+
+using namespace vgui;
+class CNavUIBasePanel;
+class CNavUIToolPanel;
+
+extern IGameUIFuncs *gameuifuncs;
+
+
+//--------------------------------------------------------------------------------------------------------
+static CNavUIBasePanel *s_navUIPanel = NULL;
+CNavUIBasePanel *TheNavUI( void )
+{
+	return s_navUIPanel;
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+ConVar NavGUIRebuild( "nav_gui_rebuild", "0", FCVAR_CHEAT, "Rebuilds the nav ui windows from scratch every time they're opened" );
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIButton::LookupKey( void )
+{
+	if ( m_hideKey == BUTTON_CODE_INVALID )
+		m_hideKey = (gameuifuncs) ? gameuifuncs->GetButtonCodeForBind( "nav_gui" ) : BUTTON_CODE_INVALID;
+}
+
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIButton::OnKeyCodePressed( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		m_hidePressedTimer.Start();
+		return;
+	}
+
+	BaseClass::OnKeyCodePressed( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIButton::OnKeyCodeReleased( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		if ( m_hidePressedTimer.HasStarted() && m_hidePressedTimer.GetElapsedTime() < 0.5f )
+		{
+			s_navUIPanel->ToggleVisibility();
+			m_hidePressedTimer.Invalidate();
+		}
+		return;
+	}
+
+	BaseClass::OnKeyCodeReleased( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUITextEntry::LookupKey( void )
+{
+	if ( m_hideKey == BUTTON_CODE_INVALID )
+		m_hideKey = (gameuifuncs) ? gameuifuncs->GetButtonCodeForBind( "nav_gui" ) : BUTTON_CODE_INVALID;
+}
+
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUITextEntry::OnKeyCodePressed( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		m_hidePressedTimer.Start();
+		return;
+	}
+
+	BaseClass::OnKeyCodePressed( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUITextEntry::OnKeyCodeReleased( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		if ( m_hidePressedTimer.HasStarted() && m_hidePressedTimer.GetElapsedTime() < 0.5f )
+		{
+			s_navUIPanel->ToggleVisibility();
+			m_hidePressedTimer.Invalidate();
+		}
+		return;
+	}
+
+	BaseClass::OnKeyCodeReleased( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIComboBox::LookupKey( void )
+{
+	if ( m_hideKey == BUTTON_CODE_INVALID )
+		m_hideKey = (gameuifuncs) ? gameuifuncs->GetButtonCodeForBind( "nav_gui" ) : BUTTON_CODE_INVALID;
+}
+
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIComboBox::OnKeyCodePressed( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		m_hidePressedTimer.Start();
+		return;
+	}
+
+	BaseClass::OnKeyCodePressed( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIComboBox::OnKeyCodeReleased( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		if ( m_hidePressedTimer.HasStarted() && m_hidePressedTimer.GetElapsedTime() < 0.5f )
+		{
+			s_navUIPanel->ToggleVisibility();
+			m_hidePressedTimer.Invalidate();
+		}
+		return;
+	}
+
+	BaseClass::OnKeyCodeReleased( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUICheckButton::LookupKey( void )
+{
+	if ( m_hideKey == BUTTON_CODE_INVALID )
+		m_hideKey = (gameuifuncs) ? gameuifuncs->GetButtonCodeForBind( "nav_gui" ) : BUTTON_CODE_INVALID;
+}
+
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUICheckButton::OnKeyCodePressed( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		m_hidePressedTimer.Start();
+		return;
+	}
+
+	BaseClass::OnKeyCodePressed( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUICheckButton::OnKeyCodeReleased( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		if ( m_hidePressedTimer.HasStarted() && m_hidePressedTimer.GetElapsedTime() < 0.5f )
+		{
+			s_navUIPanel->ToggleVisibility();
+			m_hidePressedTimer.Invalidate();
+		}
+		return;
+	}
+
+	BaseClass::OnKeyCodeReleased( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+CNavUIBasePanel::CNavUIBasePanel() : vgui::Frame( NULL, "NavUI" )
+{
+	m_hideKey = BUTTON_CODE_INVALID;
+	SetScheme( "SourceScheme" );
+	LoadControlSettings( "Resource/UI/NavUI.res" );
+	SetAlpha( 0 );
+	SetMouseInputEnabled( false );
+	SetSizeable( false );
+	SetMoveable( false );
+	SetCloseButtonVisible( false );
+	SetTitleBarVisible( false );
+
+	SetLeftClickAction( "", "" );
+
+	m_hidden = false;
+	m_toolPanel = NULL;
+	m_selectionPanel = NULL;
+
+	SetTitle( "", true);
+
+	m_dragSelecting = m_dragUnselecting = false;
+
+	MenuButton *menuButton = dynamic_cast< MenuButton * >(FindChildByName( "FileMenuButton" ));
+	if ( menuButton )
+	{
+		NavMenu * menu = new NavMenu( menuButton, "NavFileMenu" );
+		menu->AddMenuItem( "Quit", "Quit", new KeyValues( "Command", "command", "StopEditing" ), this );
+		menuButton->SetMenu( menu );
+		menuButton->SetOpenDirection( Menu::DOWN );
+	}
+
+	menuButton = dynamic_cast< MenuButton * >(FindChildByName( "SelectionMenuButton" ));
+	if ( menuButton )
+	{
+		NavMenu * menu = new NavMenu( menuButton, "NavSelectionMenu" );
+		menu->AddMenuItem( "Flood Select", "Flood Select", new KeyValues( "Command", "command", "FloodSelect" ), this );
+		menu->AddMenuItem( "Flood Select (fog)", "Flood Select (Fog)", new KeyValues( "Command", "command", "FloodSelect fog" ), this );
+		menuButton->SetMenu( menu );
+		menuButton->SetOpenDirection( Menu::DOWN );
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+CNavUIBasePanel::~CNavUIBasePanel()
+{
+	s_navUIPanel = NULL;
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::SetLeftClickAction( const char *action, const char *text )
+{
+	if ( !action || !*action )
+	{
+		action = "Selection::Select";
+	}
+
+	if ( !text || !*text )
+	{
+		text = "Select";
+	}
+
+	V_strncpy( m_leftClickAction, action, sizeof( m_leftClickAction ) );
+	m_performingLeftClickAction = false;
+
+	vgui::Label *label = dynamic_cast< vgui::Label * >(FindChildByName( "LeftClick" ) );
+	if ( label )
+	{
+		label->SetText( UTIL_VarArgs( "Left Click: %s", text ) );
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::ApplySchemeSettings( IScheme *pScheme )
+{
+	BaseClass::ApplySchemeSettings( pScheme );
+	SetBgColor( Color( 0, 0, 0, 0 ) );
+
+	Panel *panel = FindChildByName( "SidebarParent" );
+	if ( panel )
+	{
+		panel->SetBgColor( Color( 128, 128, 128, 255 ) );
+		panel->SetPaintBackgroundType( 2 );
+	}
+
+	panel = FindChildByName( "MenuParent" );
+	if ( panel )
+	{
+		panel->SetBgColor( Color( 128, 128, 128, 255 ) );
+		panel->SetPaintBackgroundType( 0 );
+	}
+
+	panel = FindChildByName( "ToolParent" );
+	if ( panel )
+	{
+		panel->SetBgColor( Color( 0, 0, 0, 128 ) );
+		panel->SetPaintBackgroundType( 0 );
+	}
+
+	panel = FindChildByName( "SelectionParent" );
+	if ( panel )
+	{
+		panel->SetBgColor( Color( 0, 0, 0, 128 ) );
+		panel->SetPaintBackgroundType( 0 );
+	}
+
+	panel = FindChildByName( "MouseFeedbackParent" );
+	if ( panel )
+	{
+		panel->SetBgColor( Color( 0, 0, 0, 128 ) );
+		panel->SetPaintBackgroundType( 0 );
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::PerformLayout( void )
+{
+	int wide, tall;
+	vgui::surface()->GetScreenSize( wide, tall );
+	SetBounds( 0, 0, wide, tall );
+
+	Panel *panel = FindChildByName( "MenuParent" );
+	if ( panel )
+	{
+		int oldWide, oldTall;
+		panel->GetSize( oldWide, oldTall );
+		panel->SetSize( wide, oldTall );
+	}
+
+	BaseClass::PerformLayout();
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::PaintBackground( void )
+{
+	BaseClass::PaintBackground();
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+const char *CNavUIBasePanel::ActiveToolName( void ) const
+{
+	if ( m_toolPanel )
+		return m_toolPanel->GetName();
+
+	return "";
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::ActivateTool( const char *toolName )
+{
+	if ( m_toolPanel && FStrEq( m_toolPanel->GetName(), toolName ) )
+	{
+		m_toolPanel->Shutdown();
+		m_toolPanel->MarkForDeletion();
+		m_toolPanel = NULL;
+	}
+	else
+	{
+		if ( m_toolPanel )
+		{
+			m_toolPanel->Shutdown();
+			m_toolPanel->MarkForDeletion();
+			m_toolPanel = NULL;
+		}
+
+		Panel *toolParent = FindChildByName( "ToolParent" );
+		if ( !toolParent )
+			toolParent = this;
+
+		m_toolPanel = CreateTool( toolName, toolParent );
+		if ( m_toolPanel )
+		{
+			m_toolPanel->Init();
+			m_toolPanel->SetVisible( true );
+		}
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+CNavUIToolPanel *CNavUIBasePanel::CreateTool( const char *toolName, vgui::Panel *toolParent )
+{
+	if ( FStrEq( toolName, "Selection" ) )
+	{
+		return new SelectionToolPanel( toolParent, toolName );
+	}
+	if ( FStrEq( toolName, "Mesh" ) )
+	{
+		return new MeshToolPanel( toolParent, toolName );
+	}
+	if ( FStrEq( toolName, "Attribute" ) )
+	{
+		return new AttributeToolPanel( toolParent, toolName );
+	}
+	return NULL;
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::OnCommand( const char *command )
+{
+	CSplitString argv( command, " " );
+
+	if ( FStrEq( "Close", command ) )
+	{
+		ToggleVisibility();
+	}
+	else if ( FStrEq( "MeshTool", command ) )
+	{
+		ActivateTool( "Mesh" );
+		return;
+	}
+	else if ( FStrEq( "AttributesTool", command ) )
+	{
+		ActivateTool( "Attribute" );
+		return;
+	}
+	else if ( FStrEq( "StopEditing", command ) )
+	{
+		MarkForDeletion();
+		engine->ServerCommand( "nav_edit 0\n" );
+	}
+	else
+	{
+		BaseClass::OnCommand( command );
+	}
+
+	// argv can't delete individual elements
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+// GameUI panels are always visible by default, so here we hide ourselves if the GameUI is up.
+void CNavUIBasePanel::OnTick( void )
+{
+	CBasePlayer *player = UTIL_GetListenServerHost();
+	if ( !player || !player->IsConnected() )
+	{
+		m_hidden = true;
+		SetVisible( false );
+		vgui::ivgui()->RemoveTickSignal( GetVPanel() );
+		return;
+	}
+
+	if ( enginevgui->IsGameUIVisible() )
+	{
+		if ( GetAlpha() != 0 )
+		{
+			SetAlpha( 0 );
+			SetMouseInputEnabled( false );
+		}
+	}
+	else
+	{
+		if ( m_hidden )
+		{
+			if ( GetAlpha() > 0 )
+			{
+				SetAlpha( 0 );
+				SetMouseInputEnabled( false );
+			}
+
+			SetVisible( false );
+			vgui::ivgui()->RemoveTickSignal( GetVPanel() );
+			return;
+		}
+		else
+		{
+			if ( GetAlpha() < 255 )
+			{
+				SetAlpha( 255 );
+				SetMouseInputEnabled( true );
+
+				if ( !m_selectionPanel )
+				{
+					Panel *selectionParent = FindChildByName( "SelectionParent" );
+					if ( !selectionParent )
+						selectionParent = this;
+
+					m_selectionPanel = CreateTool( "Selection", selectionParent );
+					if ( m_selectionPanel )
+					{
+						m_selectionPanel->Init();
+						m_selectionPanel->SetVisible( true );
+					}
+				}
+			}
+
+			CFmtStr str;
+			if ( m_toolPanel )
+			{
+				str.sprintf( "%s - %s", STRING( gpGlobals->mapname ), m_toolPanel->GetName() );
+			}
+			else
+			{
+				str.sprintf( "%s", STRING( gpGlobals->mapname ) );
+			}
+			SetTitle( str.Access(), true );
+		}
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::ToggleVisibility( void )
+{
+	m_hidden = !m_hidden;
+
+	if ( m_hidden && NavGUIRebuild.GetBool() )
+	{
+		MarkForDeletion();
+		s_navUIPanel = NULL;
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+Panel *CNavUIBasePanel::CreateControlByName( const char *controlName )
+{
+	if ( FStrEq( controlName, "Button" ) )
+	{
+		return new CNavUIButton( this, "CNavUIButton" );
+	}
+
+	if ( FStrEq( controlName, "TextEntry" ) )
+	{
+		return new CNavUITextEntry( this, "CNavUITextEntry" );
+	}
+
+	if ( FStrEq( controlName, "ComboBox" ) )
+	{
+		return new CNavUIComboBox( this, "CNavUIComboBox", 5, false );
+	}
+
+	if ( FStrEq( controlName, "CheckButton" ) )
+	{
+		return new CNavUICheckButton( this, "CNavUICheckButton", "" );
+	}
+
+	return BaseClass::CreateControlByName( controlName );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+Panel *CNavUIToolPanel::CreateControlByName( const char *controlName )
+{
+	if ( s_navUIPanel )
+	{
+		return s_navUIPanel->CreateControlByName( controlName );
+	}
+
+	return BaseClass::CreateControlByName( controlName );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+bool CNavUIToolPanel::IsCheckButtonChecked( const char *name )
+{
+	vgui::CheckButton *checkButton = dynamic_cast< vgui::CheckButton * >( FindChildByName( name, true ) );
+	if ( !checkButton )
+		return false;
+
+	return checkButton->IsSelected();
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::LookupKey( void )
+{
+	if ( m_hideKey == BUTTON_CODE_INVALID )
+		m_hideKey = (gameuifuncs) ? gameuifuncs->GetButtonCodeForBind( "nav_gui" ) : BUTTON_CODE_INVALID;
+}
+
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::OnKeyCodePressed( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		m_hidePressedTimer.Start();
+		return;
+	}
+
+	BaseClass::OnKeyCodePressed( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::OnKeyCodeReleased( KeyCode code )
+{
+	LookupKey();
+
+	if ( code == m_hideKey )
+	{
+		if ( m_hidePressedTimer.HasStarted() && m_hidePressedTimer.GetElapsedTime() < 0.5f )
+		{
+			s_navUIPanel->ToggleVisibility();
+			m_hidePressedTimer.Invalidate();
+		}
+		return;
+	}
+
+	BaseClass::OnKeyCodeReleased( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::OnCursorEntered( void )
+{
+	BaseClass::OnCursorEntered();
+
+	if ( m_performingLeftClickAction )
+	{
+		if ( m_toolPanel )
+		{
+			m_toolPanel->FinishLeftClickAction( m_leftClickAction );
+		}
+		if ( m_selectionPanel )
+		{
+			m_selectionPanel->FinishLeftClickAction( m_leftClickAction );
+		}
+		m_performingLeftClickAction = false;
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::OnCursorMoved( int x, int y )
+{
+	if ( m_toolPanel )
+	{
+		m_toolPanel->OnCursorMoved( x, y );
+	}
+	if ( m_selectionPanel )
+	{
+		m_selectionPanel->OnCursorMoved( x, y );
+	}
+	
+	BaseClass::OnCursorMoved( x, y );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::OnCursorExited( void )
+{
+	BaseClass::OnCursorExited();
+
+	if ( m_performingLeftClickAction )
+	{
+		if ( m_toolPanel )
+		{
+			m_toolPanel->FinishLeftClickAction( m_leftClickAction );
+		}
+		if ( m_selectionPanel )
+		{
+			m_selectionPanel->FinishLeftClickAction( m_leftClickAction );
+		}
+		m_performingLeftClickAction = false;
+	}
+	/*
+	if ( m_dragSelecting || m_dragUnselecting )
+	{
+		PlaySound( "EDIT_END_AREA.Creating" );
+	}
+	m_dragSelecting = false;
+	m_dragUnselecting = false;
+	*/
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::OnMousePressed( MouseCode code )
+{
+	/*
+	CNavArea *area = TheNavMesh->GetSelectedArea();
+	*/
+
+	switch ( code )
+	{
+	case MOUSE_LEFT:
+		m_performingLeftClickAction = true;
+		if ( m_toolPanel )
+		{
+			m_toolPanel->StartLeftClickAction( m_leftClickAction );
+		}
+		if ( m_selectionPanel )
+		{
+			m_selectionPanel->StartLeftClickAction( m_leftClickAction );
+		}
+		break;
+	}
+
+	BaseClass::OnMousePressed( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::OnMouseReleased( MouseCode code )
+{
+	switch ( code )
+	{
+	case MOUSE_LEFT:
+		if ( m_performingLeftClickAction )
+		{
+			if ( m_toolPanel )
+			{
+				m_toolPanel->FinishLeftClickAction( m_leftClickAction );
+			}
+			if ( m_selectionPanel )
+			{
+				m_selectionPanel->FinishLeftClickAction( m_leftClickAction );
+			}
+			m_performingLeftClickAction = false;
+		}
+		break;
+	case MOUSE_RIGHT:
+		if ( m_toolPanel )
+		{
+			m_toolPanel->StartRightClickAction( "Selection::ClearSelection" );
+		}
+		if ( m_selectionPanel )
+		{
+			m_selectionPanel->StartRightClickAction( "Selection::ClearSelection" );
+		}
+		break;
+	}
+
+	BaseClass::OnMousePressed( code );
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CNavUIBasePanel::PlaySound( const char *sound )
+{
+	CBasePlayer *player = UTIL_GetListenServerHost();
+	if ( player )
+	{
+		player->EmitSound( sound );
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+// Taken from cl_dll/view.cpp
+float ScaleFOVByWidthRatio( float fovDegrees, float ratio )
+{
+	float halfAngleRadians = fovDegrees * ( 0.5f * M_PI / 180.0f );
+	float t = tan( halfAngleRadians );
+	t *= ratio;
+	float retDegrees = ( 180.0f / M_PI ) * atan( t );
+	return retDegrees * 2.0f;
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+// Purpose:
+// Given a field of view and mouse/screen positions as well as the current
+// render origin and angles, returns a unit vector through the mouse position
+// that can be used to trace into the world under the mouse click pixel.
+// Input : 
+// mousex -
+// mousey -
+// fov -
+// vecRenderOrigin - 
+// vecRenderAngles -
+// Output :
+// vecPickingRay
+// Adapted from cl_dll/c_vguiscreen.cpp
+//--------------------------------------------------------------------------------------------------------
+void ScreenToWorld( int mousex, int mousey, float fov,
+				   const Vector& vecRenderOrigin,
+				   const QAngle& vecRenderAngles,
+				   Vector& vecPickingRay )
+{
+	float dx, dy;
+	float c_x, c_y;
+	float dist;
+	Vector vpn, vup, vright;
+
+	int wide, tall;
+	vgui::surface()->GetScreenSize( wide, tall );
+	c_x = wide / 2;
+	c_y = tall / 2;
+
+	float scaled_fov = ScaleFOVByWidthRatio( fov, (float)wide / (float)tall * 0.75f );
+
+	dx = (float)mousex - c_x;
+	// Invert Y
+	dy = c_y - (float)mousey;
+
+	// Convert view plane distance
+	dist = c_x / tan( M_PI * scaled_fov / 360.0 );
+
+	// Decompose view angles
+	AngleVectors( vecRenderAngles, &vpn, &vright, &vup );
+
+	// Offset forward by view plane distance, and then by pixel offsets
+	vecPickingRay = vpn * dist + vright * ( dx ) + vup * ( dy );
+
+	// Convert to unit vector
+	VectorNormalize( vecPickingRay );
+} 
+
+
+//--------------------------------------------------------------------------------------------------------
+void GetNavUIEditVectors( Vector *pos, Vector *forward )
+{
+	CBasePlayer *player = UTIL_GetListenServerHost();
+	if ( !player )
+	{
+		return;
+	}
+
+	if ( !s_navUIPanel )
+	{
+		return;
+	}
+
+	if ( s_navUIPanel->GetAlpha() < 255 )
+	{
+		return;
+	}
+
+	int x, y;
+	vgui::surface()->SurfaceGetCursorPos( x, y );
+
+	float fov = player->GetFOV();
+	QAngle eyeAngles = player->EyeAngles();
+	Vector eyePosition = player->EyePosition();
+
+	Vector pick;
+	ScreenToWorld( x, y, fov, eyePosition, eyeAngles, pick );
+
+	*forward = pick;
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void NavUICommand( void )
+{
+	if ( engine->IsDedicatedServer() )
+		return;
+
+	if ( UTIL_GetCommandClient() != UTIL_GetListenServerHost() )
+		return;
+
+	engine->ServerCommand( "nav_edit 1\n" );
+	bool created = false;
+	if ( !s_navUIPanel )
+	{
+		created = true;
+		s_navUIPanel = CreateNavUI();
+	}
+
+	ShowGameDLLPanel( s_navUIPanel );
+	vgui::ivgui()->AddTickSignal( s_navUIPanel->GetVPanel() );
+	if ( !created )
+	{
+		s_navUIPanel->ToggleVisibility();
+	}
+}
+ConCommand nav_gui( "nav_gui", NavUICommand, "Opens the nav editing GUI", FCVAR_CHEAT );
+
+#endif // SERVER_USES_VGUI
+
+//--------------------------------------------------------------------------------------------------------