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75 lines
1.9 KiB
75 lines
1.9 KiB
//===== Copyright © 1996-2005, Valve Corporation, All rights reserved. ======// |
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// |
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// Purpose: |
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// |
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// $NoKeywords: $ |
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//===========================================================================// |
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#include "cbase.h" |
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#include "func_areaportalbase.h" |
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// memdbgon must be the last include file in a .cpp file!!! |
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#include "tier0/memdbgon.h" |
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// A sphere around the player used for backface culling of areaportals. |
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#define VIEWER_PADDING 80 |
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CUtlLinkedList<CFuncAreaPortalBase*, unsigned short> g_AreaPortals; |
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//--------------------------------------------------------- |
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// Save/Restore |
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//--------------------------------------------------------- |
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BEGIN_DATADESC( CFuncAreaPortalBase ) |
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DEFINE_FIELD( m_portalNumber, FIELD_INTEGER ), |
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DEFINE_KEYFIELD( m_iPortalVersion, FIELD_INTEGER, "PortalVersion" ) |
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// DEFINE_FIELD( m_AreaPortalsElement, FIELD_SHORT ), |
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END_DATADESC() |
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CFuncAreaPortalBase::CFuncAreaPortalBase() |
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{ |
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m_portalNumber = -1; |
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m_AreaPortalsElement = g_AreaPortals.AddToTail( this ); |
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m_iPortalVersion = 0; |
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} |
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CFuncAreaPortalBase::~CFuncAreaPortalBase() |
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{ |
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g_AreaPortals.Remove( m_AreaPortalsElement ); |
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} |
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bool CFuncAreaPortalBase::UpdateVisibility( const CUtlVector< Vector > &vecOrigins, float fovDistanceAdjustFactor, bool &bIsOpenOnClient ) |
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{ |
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// NOTE: We leave bIsOpenOnClient alone on purpose here. See the header for a description of why. |
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if( m_portalNumber == -1 ) |
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return false; |
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// See if the viewer is on the backside. |
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for ( int i = 0; i < vecOrigins.Count(); ++i ) |
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{ |
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const Vector &vOrigin = vecOrigins[ i ]; |
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VPlane plane; |
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if( !engine->GetAreaPortalPlane( vOrigin, m_portalNumber, &plane ) ) |
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return true; // leave it open if there's an error here for some reason |
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// If either players' origin is on the front, the areaportal is considered opened... |
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if( plane.DistTo( vOrigin ) + VIEWER_PADDING > 0 ) |
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return true; |
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} |
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return false; |
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} |
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