bool C_BaseViewModel::Interpolate( float currentTime )
{
CStudioHdr *pStudioHdr = GetModelPtr();
// Make sure we reset our animation information if we've switch sequences
UpdateAnimationParity();
bool bret = BaseClass::Interpolate( currentTime );
// Hack to extrapolate cycle counter for view model
float elapsed_time = currentTime - m_flAnimTime;
C_BasePlayer *pPlayer = C_BasePlayer::GetLocalPlayer();
// Predicted viewmodels have fixed up interval
if ( GetPredictable() || IsClientCreated() )
{
Assert( pPlayer );
float curtime = pPlayer ? pPlayer->GetFinalPredictedTime() : gpGlobals->curtime;
elapsed_time = curtime - m_flAnimTime;
// Adjust for interpolated partial frame
if ( !engine->IsPaused() )
{
elapsed_time += ( gpGlobals->interpolation_amount * TICK_INTERVAL );
}
}
// Prediction errors?
if ( elapsed_time < 0 )
{
elapsed_time = 0;
}
float dt = elapsed_time * GetSequenceCycleRate( pStudioHdr, GetSequence() ) * GetPlaybackRate();
if ( dt >= 1.0f )
{
if ( !IsSequenceLooping( GetSequence() ) )
{
dt = 0.999f;
}
else
{
dt = fmod( dt, 1.0f );
}
}
SetCycle( dt );
return bret;
}
//-----------------------------------------------------------------------------
// Purpose: If the animation parity of the weapon has changed, we reset cycle to avoid popping
//-----------------------------------------------------------------------------
void C_BaseViewModel::UpdateAnimationParity( void )
{
C_BasePlayer *pPlayer = C_BasePlayer::GetLocalPlayer();
// If we're predicting, then we don't use animation parity because we change the animations on the clientside
// while predicting. When not predicting, only the server changes the animations, so a parity mismatch
// tells us if we need to reset the animation.
if ( m_nOldAnimationParity != m_nAnimationParity && !GetPredictable() )
{
float curtime = (pPlayer && IsIntermediateDataAllocated()) ? pPlayer->GetFinalPredictedTime() : gpGlobals->curtime;
// FIXME: this is bad
// Simulate a networked m_flAnimTime and m_flCycle
// FIXME: Do we need the magic 0.1?
SetCycle( 0.0f ); // GetSequenceCycleRate( GetSequence() ) * 0.1;
m_flAnimTime = curtime;
}
}