/** Updates nitro dependent particle effects.
* \param nitro_frac Nitro fraction/
*/
void KartGFX::updateNitroGraphics(float nitro_frac)
{
#ifndef SERVER_ONLY
// Upate particle effects (creation rate, and emitter size
// depending on speed)
// --------------------------------------------------------
if (nitro_frac > 0)
{
setCreationRateRelative(KartGFX::KGFX_NITRO1, nitro_frac);
setCreationRateRelative(KartGFX::KGFX_NITRO2, nitro_frac);
setCreationRateRelative(KartGFX::KGFX_NITROSMOKE1, nitro_frac);
setCreationRateRelative(KartGFX::KGFX_NITROSMOKE2, nitro_frac);
if (CVS->isGLSL())
m_nitro_light->setVisible(true);
}
else
{
setCreationRateAbsolute(KartGFX::KGFX_NITRO1, 0);
setCreationRateAbsolute(KartGFX::KGFX_NITRO2, 0);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE1, 0);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE2, 0);
if (CVS->isGLSL())
m_nitro_light->setVisible(false);
}
// Exhaust is always emitting
setCreationRateRelative(KartGFX::KGFX_EXHAUST1, 1.0);
setCreationRateRelative(KartGFX::KGFX_EXHAUST2, 1.0);
#endif
} // updateGraphics
/** Sets the creation rate as a relative fraction between minimum (f=0) and
* maximum (f=1) of the creation rates defined in the particle kind.
* \param fraction Fraction to use.
*/
void ParticleEmitter::setCreationRateRelative(float fraction)
{
assert(fraction >= 0.0f);
assert(fraction <= 1.0f);
const float min_rate = (float)(m_particle_type->getMinRate());
const float max_rate = (float)(m_particle_type->getMaxRate());
setCreationRateAbsolute(min_rate + fraction*(max_rate - min_rate));
} // setCreationRateRelative
/** Updates nitro dependent particle effects.
* \param nitro_frac Nitro fraction/
*/
void KartGFX::updateNitroGraphics(float nitro_frac)
{
// Upate particle effects (creation rate, and emitter size
// depending on speed)
// --------------------------------------------------------
if (nitro_frac > 0)
{
setCreationRateRelative(KartGFX::KGFX_NITRO1, nitro_frac);
setCreationRateRelative(KartGFX::KGFX_NITRO2, nitro_frac);
setCreationRateRelative(KartGFX::KGFX_NITROSMOKE1, nitro_frac);
setCreationRateRelative(KartGFX::KGFX_NITROSMOKE2, nitro_frac);
m_nitro_light->setVisible(true);
}
else
{
setCreationRateAbsolute(KartGFX::KGFX_NITRO1, 0);
setCreationRateAbsolute(KartGFX::KGFX_NITRO2, 0);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE1, 0);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE2, 0);
m_nitro_light->setVisible(false);
}
} // updateGraphics
void ParticleEmitter::update(float dt)
{
assert(m_magic_number == 0x58781325);
// No particles to emit, nothing to do
if (m_emitter->getMinParticlesPerSecond() == 0) return;
// the emission direction does not automatically follow the orientation of
// the node so fix that manually...
core::matrix4 transform = m_node->getAbsoluteTransformation();
core::vector3df velocity(m_particle_type->getVelocityX(),
m_particle_type->getVelocityY(),
m_particle_type->getVelocityZ());
transform.rotateVect(velocity);
m_emitter->setDirection(velocity);
if (m_emission_decay_rate > 0)
{
m_max_rate = m_min_rate = std::max(0.0f, (m_min_rate - m_emission_decay_rate*dt));
setCreationRateAbsolute(m_min_rate);
}
// There seems to be no way to randomise the velocity for particles,
// so we have to do this manually, by changing the default velocity.
// Irrlicht expects velocity (called 'direction') in m/ms!!
/*
const int x = m_particle_type->getAngleSpreadX();
const int y = m_particle_type->getAngleSpreadY();
const int z = m_particle_type->getAngleSpreadZ();
Vec3 dir(cos(DEGREE_TO_RAD*(rand()%x - x/2))*m_particle_type->getVelocityX(),
sin(DEGREE_TO_RAD*(rand()%y - x/2))*m_particle_type->getVelocityY(),
sin(DEGREE_TO_RAD*(rand()%z - x/2))*m_particle_type->getVelocityZ());
m_emitter->setDirection(dir.toIrrVector());
*/
} // update
// ----------------------------------------------------------------------------
void KartGFX::setGFXFromReplay(int nitro, bool zipper,
int skidding, bool red_skidding)
{
#ifndef SERVER_ONLY
if (nitro > 0)
{
setCreationRateAbsolute(KartGFX::KGFX_NITRO1, (float)nitro);
setCreationRateAbsolute(KartGFX::KGFX_NITRO2, (float)nitro);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE1, (float)nitro);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE2, (float)nitro);
if (CVS->isGLSL())
m_nitro_light->setVisible(true);
}
else
{
setCreationRateAbsolute(KartGFX::KGFX_NITRO1, 0.0f);
setCreationRateAbsolute(KartGFX::KGFX_NITRO2, 0.0f);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE1, 0.0f);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE2, 0.0f);
if (CVS->isGLSL())
m_nitro_light->setVisible(false);
}
if (zipper)
setCreationRateAbsolute(KartGFX::KGFX_ZIPPER, 800.0f);
if (skidding > 0)
{
const ParticleKind* skid_kind = red_skidding ? m_skid_kind2
: m_skid_kind1;
if (m_all_emitters[KGFX_SKID1L])
m_all_emitters[KGFX_SKID1L]->setParticleType(skid_kind);
if (m_all_emitters[KGFX_SKID1R])
m_all_emitters[KGFX_SKID1R]->setParticleType(skid_kind);
if (CVS->isGLSL())
{
m_skidding_light_1->setVisible(!red_skidding);
m_skidding_light_2->setVisible(red_skidding);
}
setCreationRateAbsolute(KartGFX::KGFX_SKIDL, (float)skidding);
setCreationRateAbsolute(KartGFX::KGFX_SKIDR, (float)skidding);
}
else
{
setCreationRateAbsolute(KartGFX::KGFX_SKIDL, 0.0f);
setCreationRateAbsolute(KartGFX::KGFX_SKIDR, 0.0f);
if (CVS->isGLSL())
{
m_skidding_light_1->setVisible(false);
m_skidding_light_2->setVisible(false);
}
}
#endif
} // setGFXFromReplay
// ----------------------------------------------------------------------------
void KartGFX::setGFXFromReplay(int nitro, bool zipper,
int skidding, bool red_skidding)
{
if (nitro > 0)
{
setCreationRateAbsolute(KartGFX::KGFX_NITRO1, (float)nitro);
setCreationRateAbsolute(KartGFX::KGFX_NITRO2, (float)nitro);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE1, (float)nitro);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE2, (float)nitro);
m_nitro_light->setVisible(true);
}
else if (m_nitro_light->isVisible() && nitro == 0)
{
setCreationRateAbsolute(KartGFX::KGFX_NITRO1, 0.0f);
setCreationRateAbsolute(KartGFX::KGFX_NITRO2, 0.0f);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE1, 0.0f);
setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE2, 0.0f);
m_nitro_light->setVisible(false);
}
if (zipper)
setCreationRateAbsolute(KartGFX::KGFX_ZIPPER, 800.0f);
if (skidding > 0)
{
if (!m_skidding_light_1->isVisible() && !red_skidding)
{
if (m_all_emitters[KGFX_SKID1L])
m_all_emitters[KGFX_SKID1L]->setParticleType(m_skid_kind1);
if (m_all_emitters[KGFX_SKID1R])
m_all_emitters[KGFX_SKID1R]->setParticleType(m_skid_kind1);
m_skidding_light_1->setVisible(true);
m_skidding_light_2->setVisible(false);
}
if (!m_skidding_light_2->isVisible() && red_skidding)
{
if (m_all_emitters[KGFX_SKID1L])
m_all_emitters[KGFX_SKID1L]->setParticleType(m_skid_kind2);
if (m_all_emitters[KGFX_SKID1R])
m_all_emitters[KGFX_SKID1R]->setParticleType(m_skid_kind2);
m_skidding_light_1->setVisible(false);
m_skidding_light_2->setVisible(true);
}
setCreationRateAbsolute(KartGFX::KGFX_SKIDL, (float)skidding);
setCreationRateAbsolute(KartGFX::KGFX_SKIDR, (float)skidding);
}
else if ((m_skidding_light_1->isVisible() ||
m_skidding_light_2->isVisible()) && skidding == 0)
{
setCreationRateAbsolute(KartGFX::KGFX_SKIDL, 0.0f);
setCreationRateAbsolute(KartGFX::KGFX_SKIDR, 0.0f);
m_skidding_light_1->setVisible(false);
m_skidding_light_2->setVisible(false);
}
} // setGFXFromReplay
