cs16-client-legacy/dlls/plane.cpp

42 lines
993 B
C++

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