LTBOOL CSteamFX::Update()
{
if (m_bWantRemove) return LTFALSE;
// Debugging aid...
if (s_cvarTweak.GetFloat() > 0)
{
TweakSystem();
}
// Start/stop steam sound if necessary...
if (m_hServerObject)
{
uint32 dwUserFlags;
g_pLTClient->GetObjectUserFlags(m_hServerObject, &dwUserFlags);
if (!(dwUserFlags & USRFLG_VISIBLE))
{
if ((m_dwLastUserFlags & USRFLG_VISIBLE))
{
StopSound();
}
}
else // visible
{
if (!(m_dwLastUserFlags & USRFLG_VISIBLE))
{
StartSound();
}
}
m_dwLastUserFlags = dwUserFlags;
// Make sure the sound is in the correct place (in case we are getting
// keyframed)...
if (m_hSound)
{
LTVector vPos;
g_pLTClient->GetObjectPos(m_hServerObject, &vPos);
g_pLTClient->SetSoundPosition(m_hSound, &vPos);
}
// Update the steam velocity based on our current rotation (again
// for keyframing)...
LTRotation rRot;
g_pLTClient->GetObjectRotation(m_hServerObject, &rRot);
LTVector vU, vR, vF;
g_pLTClient->GetRotationVectors(&rRot, &vU, &vR, &vF);
m_Steam.SetDriftVel(vF * (m_cs.fVel * 0.75f), vF * m_cs.fVel);
}
return m_Steam.Update();
}
LTBOOL CLineSystemFX::Update()
{
if (!m_hObject || !m_pClientDE || m_bWantRemove) return LTFALSE;
LTFLOAT fTime = m_pClientDE->GetTime();
// Hide/show the line system if necessary...
if (m_hServerObject)
{
uint32 dwUserFlags;
g_pCommonLT->GetObjectFlags(m_hServerObject, OFT_User, dwUserFlags);
if (!(dwUserFlags & USRFLG_VISIBLE))
{
g_pCommonLT->SetObjectFlags(m_hObject, OFT_Flags, 0, FLAG_VISIBLE);
m_fLastTime = fTime;
return LTTRUE;
}
else
{
g_pCommonLT->SetObjectFlags(m_hObject, OFT_Flags, FLAG_VISIBLE, FLAG_VISIBLE);
}
}
// Debugging aid...
if (s_cvarTweak.GetFloat() > 0)
{
TweakSystem();
}
if (m_bFirstUpdate)
{
m_fLastTime = fTime;
m_bFirstUpdate = LTFALSE;
}
else
{
UpdateSystem();
}
// Make sure it is time to update...
if (fTime < m_fLastTime + m_fNextUpdate)
{
return LTTRUE;
}
// Ok, how many to add this frame....
float fTimeDelta = fTime - m_fLastTime;
// Make sure delta time is no less than 15 frames/sec if we're
// continuously adding lines...
if (m_bContinuous)
{
fTimeDelta = fTimeDelta > 0.0666f ? 0.0666f : fTimeDelta;
}
int nToAdd = (int) floor(m_cs.fLinesPerSecond * fTimeDelta);
nToAdd = LTMIN(nToAdd, (int)(MAX_LINES_PER_SECOND * fTimeDelta));
// Add new lines...
AddLines(nToAdd);
// Determine when next update should occur...
if (m_cs.fBurstWait > 0.001f)
{
m_fNextUpdate = m_cs.fBurstWait * GetRandom(m_cs.fBurstWaitMin, m_cs.fBurstWaitMax);
}
else
{
m_fNextUpdate = 0.001f;
}
m_fLastTime = fTime;
return LTTRUE;
}
LTBOOL CParticleSystemFX::Update()
{
if (!m_hObject || !m_pClientDE || m_bWantRemove) return LTFALSE;
LTFLOAT fTime = m_pClientDE->GetTime();
// Hide/show the particle system if necessary...
if (m_hServerObject)
{
uint32 dwUserFlags;
g_pCommonLT->GetObjectFlags(m_hServerObject, OFT_User, dwUserFlags);
if (!(dwUserFlags & USRFLG_VISIBLE))
{
uint32 dwFlags;
g_pCommonLT->GetObjectFlags(m_hObject, OFT_Flags, dwFlags);
// Once last puff as disappeared, hide the system (no new puffs
// will be added...)
if (dwFlags & FLAG_VISIBLE)
{
if (fTime > m_fLastTime + m_cs.fParticleLifetime)
{
g_pCommonLT->SetObjectFlags(m_hObject, OFT_Flags, 0, FLAG_VISIBLE);
}
}
else
{
m_fLastTime = fTime;
}
return LTTRUE;
}
else
{
g_pCommonLT->SetObjectFlags(m_hObject, OFT_Flags, FLAG_VISIBLE, FLAG_VISIBLE);
}
}
// Debugging aid...
if (s_cvarTweak.GetFloat() > 0)
{
TweakSystem();
}
if (m_bFirstUpdate)
{
m_fLastTime = fTime;
m_bFirstUpdate = LTFALSE;
}
// Make sure it is time to update...
if (fTime < m_fLastTime + m_fNextUpdate)
{
return LTTRUE;
}
// Ok, how many to add this frame....(make sure time delta is no more than
// 15 frames/sec...
float fTimeDelta = fTime - m_fLastTime;
fTimeDelta = fTimeDelta > 0.0666f ? 0.0666f : fTimeDelta;
int nToAdd = (int) floor(m_cs.fParticlesPerSecond * fTimeDelta);
nToAdd = LTMIN(nToAdd, (int)(MAX_PARTICLES_PER_SECOND * fTimeDelta));
nToAdd = GetNumParticles(nToAdd);
m_pClientDE->AddParticles(m_hObject, nToAdd,
&m_vMinOffset, &m_vMaxOffset, // Position offset
&(m_cs.vMinVel), &(m_cs.vMaxVel), // Velocity
&(m_cs.vColor1), &(m_cs.vColor2), // Color
m_cs.fParticleLifetime, m_cs.fParticleLifetime);
// Determine when next update should occur...
if (m_cs.fBurstWait > 0.001f)
{
m_fNextUpdate = m_cs.fBurstWait * GetRandom(m_cs.fBurstWaitMin, m_cs.fBurstWaitMax);
}
else
{
m_fNextUpdate = 0.001f;
}
// Rotate the particle system...
if (m_cs.fRotationVelocity != 0.0f)
{
LTRotation rRot;
g_pLTClient->GetObjectRotation(m_hObject, &rRot);
rRot.Rotate(rRot.Up(), g_pGameClientShell->GetFrameTime() * m_cs.fRotationVelocity);
g_pLTClient->SetObjectRotation(m_hObject, &rRot);
}
m_fLastTime = fTime;
return LTTRUE;
}
