PxF32 processDigitalValue
(const PxU32 inputType,
const PxVehicleKeySmoothingData& keySmoothing, const bool digitalValue,
const PxF32 timestep,
const PxF32 analogVal)
{
PxF32 newAnalogVal=analogVal;
if(digitalValue)
{
newAnalogVal+=keySmoothing.mRiseRates[inputType]*timestep;
}
else
{
newAnalogVal-=keySmoothing.mFallRates[inputType]*timestep;
}
return PxClamp(newAnalogVal,0.0f,1.0f);
}
void ParticleEmitterPressure::stepInternal(ParticleData& particles, PxReal dt, const PxVec3& externalAcceleration, PxReal maxParticleVelocity)
{
PX_ASSERT(mNumX > 0 && mNumY > 0);
mSimulationAcceleration = externalAcceleration;
mSimulationMaxVelocity = maxParticleVelocity;
PxU32 numEmittedParticles = 0;
PxU32 maxParticlesPerStep = (PxU32)physx::shdfnd::floor(mMaxRate*dt);
PxU32 maxParticles = PxMin(particles.maxParticles - particles.numParticles, maxParticlesPerStep);
PxU32 siteNr = 0;
for(PxU32 y = 0; y != mNumY; y++)
{
PxReal offset = 0.0f;
if (y%2) offset = mSpacingX * 0.5f;
for(PxU32 x = 0; x != mNumX; x++)
{
if (isOutsideShape(x,y,offset))
continue;
SiteData& siteData = mSites[siteNr];
//position noise
PxVec3 posNoise;
posNoise.x = randInRange(-mRandomPos.x, mRandomPos.x);
posNoise.y = randInRange(-mRandomPos.y, mRandomPos.y);
//special code for Z noise
if (!siteData.predecessor)
siteData.noiseZ = randInRange(-mRandomPos.z, mRandomPos.z);
else
{
PxReal noiseZOffset = PxMin(mMaxZNoiseOffset, mRandomPos.z);
siteData.noiseZ += randInRange(-noiseZOffset, noiseZOffset);
siteData.noiseZ = PxClamp(siteData.noiseZ, mRandomPos.z, -mRandomPos.z);
}
posNoise.z = siteData.noiseZ;
//set position
PxVec3 sitePos = mBasePos + mAxisX*(offset+mSpacingX*x) + mAxisY*(mSpacingY*y) + mAxisZ*siteData.noiseZ;
PxVec3 particlePos = sitePos + mAxisX*posNoise.x + mAxisY*posNoise.y;
PxVec3 siteVel;
computeSiteVelocity(siteVel, particlePos);
if (siteData.predecessor)
{
predictPredecessorPos(siteData, dt);
}
else {
bool isSpawned = spawnParticle(particles, numEmittedParticles, maxParticles, particlePos, siteVel);
if(isSpawned)
{
updatePredecessor(siteData, particlePos, siteVel);
}
else
{
siteData.predecessor = false;
return;
}
}
bool allSpawned = stepEmissionSite(siteData, particles, numEmittedParticles, maxParticles, sitePos, siteVel, dt);
if(!allSpawned)
return;
siteNr++;
}
}
}