void CFlex::DoBodyLean( void )
{
CAI_NPC *myNpc = MyNPCPointer( );
if (myNpc)
{
Vector vecDelta;
Vector vecPos;
Vector vecOrigin = GetAbsOrigin();
if (m_vecPrevOrigin == vec3_origin)
{
m_vecPrevOrigin = vecOrigin;
}
vecDelta = vecOrigin - m_vecPrevOrigin;
vecDelta.x = clamp( vecDelta.x, -50, 50 );
vecDelta.y = clamp( vecDelta.y, -50, 50 );
vecDelta.z = clamp( vecDelta.z, -50, 50 );
float dt = gpGlobals->curtime - GetLastThink();
bool bSkip = ((GetFlags() & (FL_FLY | FL_SWIM)) != 0) || (GetMoveParent() != NULL) || (GetGroundEntity() == NULL) || (GetGroundEntity()->IsMoving());
bSkip |= myNpc->TaskRanAutomovement() || (myNpc->GetVehicleEntity() != NULL);
if (!bSkip)
{
if (vecDelta.LengthSqr() > m_vecPrevVelocity.LengthSqr())
{
float decay = ExponentialDecay( 0.6, 0.1, dt );
m_vecPrevVelocity = m_vecPrevVelocity * (decay) + vecDelta * (1.f - decay);
}
else
{
float decay = ExponentialDecay( 0.4, 0.1, dt );
m_vecPrevVelocity = m_vecPrevVelocity * (decay) + vecDelta * (1.f - decay);
}
vecPos = m_vecPrevOrigin + m_vecPrevVelocity;
float decay = ExponentialDecay( 0.5, 0.1, dt );
m_vecShift = m_vecShift * (decay) + (vecOrigin - vecPos) * (1.f - decay); // FIXME: Scale this
m_vecLean = (vecOrigin - vecPos) * 1.0; // FIXME: Scale this
}
else
{
m_vecPrevVelocity = vecDelta;
float decay = ExponentialDecay( 0.5, 0.1, dt );
m_vecShift = m_vecLean * decay;
m_vecLean = m_vecShift * decay;
}
m_vecPrevOrigin = vecOrigin;
/*
DevMsg( "%.2f %.2f %.2f (%.2f %.2f %.2f)\n",
m_vecLean.Get().x, m_vecLean.Get().y, m_vecLean.Get().z,
vecDelta.x, vecDelta.y, vecDelta.z );
*/
}
}
float CAI_InterestTarget_t::Interest( void )
{
float t = (gpGlobals->curtime - m_flStartTime) / (m_flEndTime - m_flStartTime);
if (t < 0.0f || t > 1.0f)
return 0.0f;
if (m_flRamp && t < 1 - m_flRamp)
{
//t = t / m_flRamp;
t = 1.0 - ExponentialDecay( 0.2, m_flRamp, t );
//t = 1.0 - ExponentialDecay( 0.01, 1 - m_flRamp, t );
}
else if (t > 1.0f - m_flRamp)
{
t = (1.0 - t) / m_flRamp;
t = 3.0f * t * t - 2.0f * t * t * t;
}
else
{
t = 1.0f;
}
// ramp
t *= m_flInterest;
return t;
}
void UpdateVelocity( SimpleParticle *pParticle, float timeDelta )
{
// Float up when lifetime is half gone.
pParticle->m_vecVelocity[ 2 ] += 64 * timeDelta;
// FIXME: optimize this....
pParticle->m_vecVelocity *= ExponentialDecay( 0.8, 0.05, timeDelta );
}
void C_AR2Explosion::SimulateParticles( CParticleSimulateIterator *pIterator )
{
float dt = pIterator->GetTimeDelta();
AR2ExplosionParticle *pParticle = (AR2ExplosionParticle*)pIterator->GetFirst();
while ( pParticle )
{
if (dt > 0.05)
dt = 0.05; // yuck, air resistance function craps out at less then 20fps
// Update its lifetime.
pParticle->m_Lifetime += dt; // pDraw->GetTimeDelta();
if(pParticle->m_Lifetime > pParticle->m_Dwell)
{
// faded to nothing....
pIterator->RemoveParticle( pParticle );
}
else
{
// Spin the thing
pParticle->m_Roll += pParticle->m_RollSpeed * pIterator->GetTimeDelta();
// delayed?
if ( pParticle->m_Lifetime >= 0.0f )
{
// Move it (this comes after rendering to make it clear that moving the particle here won't change
// its rendering for this frame since m_TransformedPos has already been set).
pParticle->m_Pos = pParticle->m_Pos + pParticle->m_Velocity * dt;
// keep track of distance traveled
pParticle->m_Dist = pParticle->m_Dist + pParticle->m_Velocity.Length() * dt;
// Dampen velocity.
float dist = pParticle->m_Velocity.Length() * dt;
float r = dist * dist;
// FIXME: this is a really screwy air-resistance function....
pParticle->m_Velocity = pParticle->m_Velocity * (100 / (100 + r ));
// dampen roll
static float dtime;
static float decay;
if (dtime != dt)
{
dtime = dt;
decay = ExponentialDecay( 0.3, 1.0, dtime );
}
if (fabs(pParticle->m_RollSpeed) > 0.2)
pParticle->m_RollSpeed = pParticle->m_RollSpeed * decay;
}
}
pParticle = (AR2ExplosionParticle*)pIterator->GetNext();
}
}
void Interpolator_CurveInterpolate_NonNormalized( int interpolationType,
const Vector &vPre,
const Vector &vStart,
const Vector &vEnd,
const Vector &vNext,
float f,
Vector &vOut )
{
vOut.Init();
switch ( interpolationType )
{
default:
Warning( "Unknown interpolation type %d\n",
(int)interpolationType );
// break; // Fall through and use catmull_rom as default
case INTERPOLATE_CATMULL_ROM_NORMALIZEX:
case INTERPOLATE_DEFAULT:
case INTERPOLATE_CATMULL_ROM:
case INTERPOLATE_CATMULL_ROM_NORMALIZE:
case INTERPOLATE_CATMULL_ROM_TANGENT:
Catmull_Rom_Spline(
vPre,
vStart,
vEnd,
vNext,
f,
vOut );
break;
case INTERPOLATE_EASE_IN:
{
f = sin( M_PI * f * 0.5f );
// Fixme, since this ignores vPre and vNext we could omit computing them aove
VectorLerp( vStart, vEnd, f, vOut );
}
break;
case INTERPOLATE_EASE_OUT:
{
f = 1.0f - sin( M_PI * f * 0.5f + 0.5f * M_PI );
// Fixme, since this ignores vPre and vNext we could omit computing them aove
VectorLerp( vStart, vEnd, f, vOut );
}
break;
case INTERPOLATE_EASE_INOUT:
{
f = SimpleSpline( f );
// Fixme, since this ignores vPre and vNext we could omit computing them aove
VectorLerp( vStart, vEnd, f, vOut );
}
break;
case INTERPOLATE_LINEAR_INTERP:
// Fixme, since this ignores vPre and vNext we could omit computing them aove
VectorLerp( vStart, vEnd, f, vOut );
break;
case INTERPOLATE_KOCHANEK_BARTELS:
case INTERPOLATE_KOCHANEK_BARTELS_EARLY:
case INTERPOLATE_KOCHANEK_BARTELS_LATE:
{
float t, b, c;
Interpolator_GetKochanekBartelsParams( interpolationType, t, b, c );
Kochanek_Bartels_Spline
(
t, b, c,
vPre,
vStart,
vEnd,
vNext,
f,
vOut
);
}
break;
case INTERPOLATE_SIMPLE_CUBIC:
Cubic_Spline(
vPre,
vStart,
vEnd,
vNext,
f,
vOut );
break;
case INTERPOLATE_BSPLINE:
BSpline(
vPre,
vStart,
vEnd,
vNext,
f,
vOut );
break;
case INTERPOLATE_EXPONENTIAL_DECAY:
{
float dt = vEnd.x - vStart.x;
if ( dt > 0.0f )
{
float val = 1.0f - ExponentialDecay( 0.001, dt, f * dt );
vOut.y = vStart.y + val * ( vEnd.y - vStart.y );
}
else
{
vOut.y = vStart.y;
}
}
break;
case INTERPOLATE_HOLD:
{
vOut.y = vStart.y;
}
break;
}
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPointCommentaryNode::UpdateViewThink( void )
{
if ( !m_bActive )
return;
CBasePlayer *pPlayer = GetCommentaryPlayer();
if ( !pPlayer )
return;
// Swing the view towards the target
if ( m_hViewTarget )
{
QAngle angGoal;
QAngle angCurrent;
if ( m_hViewPositionMover )
{
angCurrent = m_hViewPositionMover->GetAbsAngles();
VectorAngles( m_hViewTarget->WorldSpaceCenter() - m_hViewPositionMover->GetAbsOrigin(), angGoal );
}
else
{
angCurrent = pPlayer->EyeAngles();
VectorAngles( m_hViewTarget->WorldSpaceCenter() - pPlayer->EyePosition(), angGoal );
}
// Accelerate towards the target goal angles
float dx = AngleDiff( angGoal.x, angCurrent.x );
float dy = AngleDiff( angGoal.y, angCurrent.y );
float mod = 1.0 - ExponentialDecay( 0.5, 0.3, gpGlobals->frametime );
float dxmod = dx * mod;
float dymod = dy * mod;
angCurrent.x = AngleNormalize( angCurrent.x + dxmod );
angCurrent.y = AngleNormalize( angCurrent.y + dymod );
if ( m_hViewPositionMover )
{
m_hViewPositionMover->SetAbsAngles( angCurrent );
}
else
{
pPlayer->SnapEyeAngles( angCurrent );
}
SetNextThink( gpGlobals->curtime, s_pCommentaryUpdateViewThink );
}
if ( m_hViewPosition.Get() )
{
if ( pPlayer->GetActiveWeapon() )
{
pPlayer->GetActiveWeapon()->Holster();
}
if ( !m_hViewPositionMover )
{
// Make an invisible info target entity for us to attach the view to,
// and move it to the desired view position.
m_hViewPositionMover = CreateEntityByName( "env_laserdot" );
m_hViewPositionMover->SetAbsAngles( pPlayer->EyeAngles() );
pPlayer->SetViewEntity( m_hViewPositionMover );
}
// Blend to the target position over time.
float flCurTime = (gpGlobals->curtime - m_flStartTime);
float flBlendPerc = clamp( flCurTime / 2.0, 0, 1 );
// Figure out the current view position
Vector vecCurEye;
VectorLerp( pPlayer->EyePosition(), m_hViewPosition.Get()->GetAbsOrigin(), flBlendPerc, vecCurEye );
m_hViewPositionMover->SetAbsOrigin( vecCurEye );
SetNextThink( gpGlobals->curtime, s_pCommentaryUpdateViewThink );
}
}
bool C_AR2Explosion::SimulateAndRender(Particle *pBaseParticle, ParticleDraw *pDraw, float &sortKey)
{
AR2ExplosionParticle* pParticle = (AR2ExplosionParticle*)pBaseParticle;
float dt = pDraw->GetTimeDelta();
if (dt > 0.05)
dt = 0.05; // yuck, air resistance function craps out at less then 20fps
// Update its lifetime.
pParticle->m_Lifetime += dt; // pDraw->GetTimeDelta();
if(pParticle->m_Lifetime > pParticle->m_Dwell)
{
// faded to nothing....
return false;
}
// Spin the thing
pParticle->m_Roll += pParticle->m_RollSpeed * pDraw->GetTimeDelta();
// delayed?
if(pParticle->m_Lifetime < 0.0f)
{
// not alive yet
return true;
}
// Draw.
float lifetimePercent = ( pParticle->m_Lifetime - AR2_DUST_FADE_IN_TIME ) / pParticle->m_Dwell;
// FIXME: base color should be a dirty version of the material color
Vector color = g_AR2DustColor1 * (1.0 - lifetimePercent) + g_AR2DustColor2 * lifetimePercent;
Vector tPos;
TransformParticle(m_pParticleMgr->GetModelView(), pParticle->m_Pos, tPos);
// sortKey = tPos.z;
float alpha;
if ( pParticle->m_Lifetime < AR2_DUST_FADE_IN_TIME )
{
alpha = AR2_DUST_ALPHA * ( pParticle->m_Lifetime / AR2_DUST_FADE_IN_TIME );
}
else
{
alpha = AR2_DUST_ALPHA * ( 1.0f - lifetimePercent );
}
alpha *= GetAlphaDistanceFade( tPos, 50, 150 );
RenderParticle_ColorSizeAngle(
pDraw,
tPos,
color,
alpha,
pParticle->m_Dist, // size based on how far it's traveled
pParticle->m_Roll);
// Move it (this comes after rendering to make it clear that moving the particle here won't change
// its rendering for this frame since m_TransformedPos has already been set).
pParticle->m_Pos = pParticle->m_Pos + pParticle->m_Velocity * dt;
// keep track of distance traveled
pParticle->m_Dist = pParticle->m_Dist + pParticle->m_Velocity.Length() * dt;
// Dampen velocity.
float dist = pParticle->m_Velocity.Length() * dt;
float r = dist * dist;
// FIXME: this is a really screwy air-resistance function....
pParticle->m_Velocity = pParticle->m_Velocity * (100 / (100 + r ));
// dampen roll
static float dtime;
static float decay;
if (dtime != dt)
{
dtime = dt;
decay = ExponentialDecay( 0.3, 1.0, dtime );
}
if (fabs(pParticle->m_RollSpeed) > 0.2)
pParticle->m_RollSpeed = pParticle->m_RollSpeed * decay;
return true;
}
