42 lines
993 B
C++
42 lines
993 B
C++
/***
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*
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* Copyright (c) 1996-2002, Valve LLC. All rights reserved.
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*
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* This product contains software technology licensed from Id
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* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
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* All Rights Reserved.
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*
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* Use, distribution, and modification of this source code and/or resulting
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* object code is restricted to non-commercial enhancements to products from
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* Valve LLC. All other use, distribution, or modification is prohibited
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* without written permission from Valve LLC.
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*
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****/
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#include "stdafx.h"
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#include "plane.h"
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CPlane::CPlane(void)
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{
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m_fInitialized = FALSE;
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}
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void CPlane::InitializePlane(const Vector &vecNormal, const Vector &vecPoint)
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{
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m_vecNormal = vecNormal;
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m_flDist = DotProduct(m_vecNormal, vecPoint);
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m_fInitialized = TRUE;
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}
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BOOL CPlane::PointInFront(const Vector &vecPoint)
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{
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if (!m_fInitialized)
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return FALSE;
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float flFace = DotProduct(m_vecNormal, vecPoint) - m_flDist;
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if (flFace >= 0)
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return TRUE;
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return FALSE;
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} |