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Ley0k 2016-03-27 11:49:47 +02:00
commit 09bed43f97
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code/game/grenadehint.cpp Normal file
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/*
===========================================================================
Copyright (C) 2015 the OpenMoHAA team
This file is part of OpenMoHAA source code.
OpenMoHAA source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
OpenMoHAA source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenMoHAA source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// grenadehint.cpp: Grenade hint for actors.
#include "grenadehint.h"
CLASS_DECLARATION( SimpleEntity, GrenadeHint, "info_grenadehint" )
{
{ NULL, NULL }
};
GrenadeHint *GrenadeHint::gm_pFirst;
GrenadeHint::GrenadeHint()
{
m_pNext = gm_pFirst;
gm_pFirst = this;
}
void GrenadeHint::ResetHints
(
void
)
{
gm_pFirst = NULL;
}
int GrenadeHint::GetClosestSet
(
GrenadeHint **ppHints,
int nHints,
Vector& vOrg,
float fMaxRangeSquared
)
{
int i;
int nFound = 0;
GrenadeHint *pHint;
Vector vDelta;
float afRangeSquared[ 256 ];
float fRangeSquared;
if( nHints > 256 )
nHints = 256;
// iterate through all grenade hints and get the closest
for( pHint = gm_pFirst; pHint != NULL; pHint = pHint->m_pNext )
{
vDelta = pHint->origin - vOrg;
fRangeSquared = VectorLengthSquared( vDelta );
if( fRangeSquared > fMaxRangeSquared )
{
for( i = nFound; i > 0; i-- )
{
if( fRangeSquared > afRangeSquared[ i - 1 ] )
break;
if( i < nFound || nFound < nHints )
{
afRangeSquared[ i ] = afRangeSquared[ i - 1 ];
ppHints[ i ] = ppHints[ i - 1 ];
}
}
if( i < nHints )
{
afRangeSquared[ i ] = fRangeSquared;
ppHints[ i ] = pHint;
if( nFound < nHints )
nFound++;
}
}
}
return nFound;
}