Serious-Engine/Sources/Engine/Entities/LastPositions.cpp
Ryan C. Gordon 24cb244d43 First attempt to hand-merge Ryan's Linux and Mac OS X port.
This was a _ton_ of changes, made 15 years ago, so there are probably some
problems to work out still.

Among others: Engine/Base/Stream.* was mostly abandoned and will need to be
re-ported.

Still, this is a pretty good start, and probably holds a world record for
lines of changes or something.  :)
2016-03-28 23:46:13 -04:00

39 lines
968 B
C++

/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
#include "Engine/StdH.h"
#include <Engine/Entities/LastPositions.h>
#include <Engine/Math/Functions.h>
#include <Engine/Base/Timer.h>
#include <Engine/Templates/StaticArray.cpp>
CLastPositions::CLastPositions(const CLastPositions &lpOrg)
{
lp_avPositions = lpOrg.lp_avPositions ;
lp_iLast = lpOrg.lp_iLast ;
lp_ctUsed = lpOrg.lp_ctUsed ;
lp_tmLastAdded = lpOrg.lp_tmLastAdded ;
}
// add a new position
void CLastPositions::AddPosition(const FLOAT3D &vPos)
{
lp_iLast++;
if (lp_iLast>=lp_avPositions.Count()) {
lp_iLast=0;
}
lp_ctUsed = Min(INDEX(lp_ctUsed+1), lp_avPositions.Count());
lp_avPositions[lp_iLast] = vPos;
lp_tmLastAdded = _pTimer->CurrentTick();
}
// get a position
const FLOAT3D &CLastPositions::GetPosition(INDEX iPre)
{
INDEX iPos = lp_iLast-iPre;
if (iPos<0) {
iPos+=lp_avPositions.Count();
}
return lp_avPositions[iPos];
}