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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;
}
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