/// <summary>
/// Essentially wrapper for effectParticle() with some masking logic for advanced particle-effector
/// relantionships
///
/// Override with caution.
/// </summary>
public void simulateParticleEffect(SSParticle particle, float deltaT)
{
if (effectorMaskCheck(particle.effectorMask))
{
effectParticle(particle, deltaT);
}
}
protected virtual void readParticle(int idx, SSParticle p)
{
p.life = _lives [idx];
p.pos = _readElement(_positions, idx).Value;
p.orientation.Xy = _readElement(_orientationsXY, idx).Value;
p.orientation.Z = _readElement(_orientationsZ, idx).Value;
p.viewDepth = _readElement(_viewDepths, idx);
if (p.life <= 0f)
{
return; // the rest does not matter
}
p.masterScale = _readElement(_masterScales, idx).Value;
p.componentScale.Xy = _readElement(_componentScalesXY, idx).Value;
p.componentScale.Z = _readElement(_componentScalesZ, idx).Value;
p.color = Color4Helper.FromUInt32(_readElement(_colors, idx).Color);
//p.SpriteIndex = _readElement(m_spriteIndices, idx).Value;
p.spriteRect.X = _readElement(_spriteOffsetsU, idx).Value;
p.spriteRect.Y = _readElement(_spriteOffsetsV, idx).Value;
p.spriteRect.Width = _readElement(_spriteSizesU, idx).Value;
p.spriteRect.Height = _readElement(_spriteSizesV, idx).Value;
p.vel = _readElement(_velocities, idx);
p.angularVelocity = _readElement(_angularVelocities, idx);
p.mass = _readElement(_masses, idx);
p.rotationalInnertia = _readElement(_rotationalInnertias, idx);
p.drag = _readElement(_drags, idx);
p.rotationalDrag = _readElement(_rotationalDrags, idx);
p.effectorMask = (ushort)((int)_readElement(_effectorMasksHigh, idx) << 8
| (int)_readElement(_effectorMasksLow, idx));
}
public IInterpolater[] interpolaters = { new LinearInterpolater() }; // default to using LERP for everything
protected override sealed void effectParticle(SSParticle particle, float deltaT)
{
_timeSinceReset += deltaT;
float timeElapsed = float.IsNaN(particleLifetime) ? _timeSinceReset
: (1f - particle.life / particleLifetime);
float lastKey = keyframes.Keys [keyframes.Count - 1];
if (timeElapsed > lastKey)
{
applyValue(particle, keyframes [lastKey]);
}
else
{
float prevKey = keyframes.Keys [0];
for (int i = 1; i < keyframes.Keys.Count; ++i)
{
float key = keyframes.Keys [i];
if (timeElapsed < key)
{
IInterpolater interpolater =
i < interpolaters.Length ? interpolaters [i]
: interpolaters[interpolaters.Length - 1];
float progression = (timeElapsed - prevKey) / (key - prevKey);
T value = computeValue(interpolater, keyframes [prevKey], keyframes [key], progression);
applyValue(particle, value);
break;
}
prevKey = key;
}
}
}
protected virtual void particleSwap(int leftIdx, int rightIdx)
{
if (leftIdx == rightIdx)
{
return;
}
// TODO Consider swaping on a per component basis.
// It may have better peformance
// But adds more per-component maintenance
SSParticle leftParticle = createNewParticle();
SSParticle rightParticle = createNewParticle();
readParticle(leftIdx, leftParticle);
readParticle(rightIdx, rightParticle);
// write in reverse
writeParticle(leftIdx, rightParticle);
writeParticle(rightIdx, leftParticle);
#if true
if (_nextIdxToOverwrite == leftIdx)
{
_nextIdxToOverwrite = rightIdx;
}
else if (_nextIdxToOverwrite == rightIdx)
{
_nextIdxToOverwrite = leftIdx;
}
#endif
}
protected virtual void writeParticle(int idx, SSParticle p)
{
_lives [idx] = p.life;
writeDataIfNeeded(ref _positions, idx, new SSAttributeVec3(p.pos));
writeDataIfNeeded(ref _orientationsXY, idx, new SSAttributeVec2(p.orientation.Xy));
writeDataIfNeeded(ref _orientationsZ, idx, new SSAttributeFloat(p.orientation.Z));
writeDataIfNeeded(ref _masterScales, idx, new SSAttributeFloat(p.masterScale));
writeDataIfNeeded(ref _componentScalesXY, idx, new SSAttributeVec2(p.componentScale.Xy));
writeDataIfNeeded(ref _componentScalesZ, idx, new SSAttributeFloat(p.componentScale.Z));
writeDataIfNeeded(ref _colors, idx, new SSAttributeColor(Color4Helper.ToUInt32(p.color)));
//writeDataIfNeeded(ref m_spriteIndices, idx, new SSAttributeByte(p.SpriteIndex));
writeDataIfNeeded(ref _spriteOffsetsU, idx, new SSAttributeFloat(p.spriteRect.X));
writeDataIfNeeded(ref _spriteOffsetsV, idx, new SSAttributeFloat(p.spriteRect.Y));
writeDataIfNeeded(ref _spriteSizesU, idx, new SSAttributeFloat(p.spriteRect.Width));
writeDataIfNeeded(ref _spriteSizesV, idx, new SSAttributeFloat(p.spriteRect.Height));
writeDataIfNeeded(ref _velocities, idx, p.vel);
writeDataIfNeeded(ref _angularVelocities, idx, p.angularVelocity);
writeDataIfNeeded(ref _masses, idx, p.mass);
writeDataIfNeeded(ref _rotationalInnertias, idx, p.rotationalInnertia);
writeDataIfNeeded(ref _drags, idx, p.drag);
writeDataIfNeeded(ref _rotationalDrags, idx, p.rotationalDrag);
writeDataIfNeeded(ref _viewDepths, idx, p.viewDepth);
writeDataIfNeeded(ref _effectorMasksHigh, idx, (byte)((p.effectorMask & 0xFF00) >> 8));
writeDataIfNeeded(ref _effectorMasksLow, idx, (byte)(p.effectorMask & 0xFF));
}
protected override void writeParticle(int idx, SSParticle p)
{
#if false
// attempt of only writing things that are relevant; skipping the rest
_lives [idx] = p.life;
writeDataIfNeeded(ref _positions, idx, new SSAttributeVec3(p.pos));
writeDataIfNeeded(ref _viewDepths, idx, p.viewDepth);
writeDataIfNeeded(ref _effectorMasksHigh, idx, (ushort)((p.effectorMask & 0xFF00) >> 8));
writeDataIfNeeded(ref _effectorMasksLow, idx, (ushort)(p.effectorMask & 0xFF));
writeDataIfNeeded(ref _colors, idx, new SSAttributeColor(Color4Helper.ToUInt32(p.color)));
#else
// for some reason the above doesn't work, so lets just do things slightly less efficiently for now
base.writeParticle(idx, p);
#endif
var ts = (STrailsSegment)p;
var innerColor = Color4Helper.ToUInt32(ts.cylInnerColor);
writeDataIfNeeded(ref _cylInnerColors, idx, new SSAttributeColor(innerColor));
writeDataIfNeeded(ref _innerColorRatios, idx, new SSAttributeFloat(ts.innerColorRatio));
writeDataIfNeeded(ref _outerColorRatios, idx, new SSAttributeFloat(ts.outerColorRatio));
writeDataIfNeeded(ref _cylAxes, idx, new SSAttributeVec3(ts.cylAxis));
writeDataIfNeeded(ref _prevJointAxes, idx, new SSAttributeVec3(ts.prevJointAxis));
writeDataIfNeeded(ref _nextJointAxes, idx, new SSAttributeVec3(ts.nextJointAxis));
writeDataIfNeeded(ref _cylLengths, idx, new SSAttributeFloat(ts.cylLendth));
writeDataIfNeeded(ref _cylWidths, idx, new SSAttributeFloat(ts.cylWidth));
writeDataIfNeeded(ref _nextSegmentData, idx, ts.nextSegmentIdx);
writeDataIfNeeded(ref _prevSegmentData, idx, ts.prevSegmentIdx);
}
protected override void configureNewParticle(SSParticle p)
{
base.configureNewParticle(p);
float r = Interpolate.Lerp(radiusOffsetMin, radiusOffsetMax, nextFloat());
float theta = Interpolate.Lerp(thetaMin, thetaMax, nextFloat());
float phi = Interpolate.Lerp(phiMin, phiMax, nextFloat());
float xy = (float)Math.Cos(phi);
float x = xy * (float)Math.Cos(theta);
float y = xy * (float)Math.Sin(theta);
float z = (float)Math.Sin(phi);
Vector3 xAxis, yAxis;
OpenTKHelper.TwoPerpAxes(up, out xAxis, out yAxis);
Vector3 xyz = x * xAxis + y * yAxis + z * up;
p.pos = center + r * xyz;
float velocityMag = Interpolate.Lerp(velocityFromCenterMagnitudeMin, velocityFromCenterMagnitudeMax, nextFloat());
p.vel += velocityMag * xyz;
if (orientAwayFromCenter)
{
p.orientation.Z = -theta;
p.orientation.Y = phi;
}
//Console.WriteLine("particle emitted with vel = " + p.vel.Length);
}
protected override void applyValue(SSParticle particle, Color4 value)
{
value.R *= colorMask.R;
value.G *= colorMask.G;
value.B *= colorMask.B;
value.A *= colorMask.A;
particle.color = value;
}
protected override sealed void effectParticle(SSParticle particle, float deltaT)
{
if (_initialDelay > 0f) {
return;
}
effectParticlePeriodic (particle, deltaT);
}
/// <summary>
/// Override by the derived classes to describe how new particles are emitted
/// </summary>
/// <param name="particleCount">Particle count.</param>
/// <param name="receiver">Receiver.</param>
protected virtual void emitParticles(int particleCount, ReceiverHandler receiver)
{
SSParticle newParticle = new SSParticle();
for (int i = 0; i < particleCount; ++i)
{
configureNewParticle(newParticle);
receiver(newParticle);
}
}
protected override void emitParticles(int particleCount, ReceiverHandler particleReceiver)
{
SSParticle newParticle = new SSParticle();
ParticlesFieldGenerator.NewParticleDelegate fieldReceiver = (id, pos) => {
configureNewParticle(newParticle);
newParticle.pos = pos;
particleReceiver(newParticle);
return(true);
};
m_fieldGenerator.Generate(particleCount, fieldReceiver);
}
/// <summary>
/// Essentially wrapper for effectParticle() with some masking logic for advanced particle-effector
/// relantionships
///
/// Override with caution.
/// </summary>
public void simulateParticleEffect (SSParticle particle, float deltaT)
{
bool match;
if (maskMathFunction == MatchFunction.And) {
match = ((particle.effectorMask & this.effectorMask) != 0);
} else { // Equals
match = (particle.effectorMask == this.effectorMask);
}
if (match) {
effectParticle (particle, deltaT);
}
}
protected override void emitParticles(int particleCount, ReceiverHandler particleReceiver)
{
SSParticle newParticle = new SSParticle();
BodiesFieldGenerator.NewBodyDelegate bodyReceiver = (id, scale, pos, orient) => {
configureNewParticle(newParticle);
newParticle.pos = pos;
newParticle.masterScale *= scale;
newParticle.orientation += OpenTKHelper.QuaternionToEuler(ref orient);
particleReceiver(newParticle);
return(true);
};
_bodiesGenerator.Generate(particleCount, bodyReceiver);
}
protected override void effectParticlePeriodic(SSParticle particle, float timeDelta)
{
for (int i = 0; i < _blasts.Count; ++i) {
BlastInfo bi = _blasts [i];
// TODO inverse square law or something similar
Vector3 dist = particle.pos - bi.center;
if (dist != Vector3.Zero) {
float acc = _adsr.computeLevel (bi.timeElapsed) * bi.forceMagnitude
/ dist.LengthSquared / particle.mass;
Vector3 dir = (particle.pos - bi.center).Normalized ();
particle.vel += (acc * dir);
}
}
}
protected void particleSwap(int leftIdx, int rightIdx)
{
// TODO Consider swaping on a per component basis.
// It may have better peformance
// But adds more per-component maintenance
SSParticle leftParticle = new SSParticle();
SSParticle rightParticle = new SSParticle();
readParticle(leftIdx, leftParticle);
readParticle(rightIdx, rightParticle);
// write in reverse
writeParticle(leftIdx, rightParticle);
writeParticle(rightIdx, leftParticle);
}
protected override void effectParticle(SSParticle particle, float deltaT)
{
Vector3 dir = particle.vel;
// orient to look right
float x = dir.X;
float y = dir.Y;
float z = dir.Z;
float xy = dir.Xy.Length;
float phi = (float)Math.Atan(z / xy);
float theta = (float)Math.Atan2(y, x);
particle.orientation.Y = -phi;
particle.orientation.Z = theta;
particle.orientation.X = -_orientationX;
}
protected override void readParticle(int idx, SSParticle p)
{
base.readParticle(idx, p);
var ts = (STrailsSegment)p;
ts.cylInnerColor = Color4Helper.FromUInt32(_readElement(_cylInnerColors, idx).Color);
ts.innerColorRatio = _readElement(_innerColorRatios, idx).Value;
ts.outerColorRatio = _readElement(_outerColorRatios, idx).Value;
ts.cylAxis = _readElement(_cylAxes, idx).Value;
ts.prevJointAxis = _readElement(_prevJointAxes, idx).Value;
ts.nextJointAxis = _readElement(_nextJointAxes, idx).Value;
ts.cylWidth = _readElement(_cylWidths, idx).Value;
ts.cylLendth = _readElement(_cylLengths, idx).Value;
ts.nextSegmentIdx = _readElement(_nextSegmentData, idx);
ts.prevSegmentIdx = _readElement(_prevSegmentData, idx);
}
protected virtual int storeNewParticle(SSParticle newParticle)
{
// Apply effects before storing the new particle
// This can help avoid unnecessary array expansion for new particle's values
foreach (SSParticleEffector effector in _effectors)
{
effector.simulateParticleEffect(newParticle, simulationStep);
}
int writeIdx;
if (_numParticles == _capacity)
{
destroyParticle(_nextIdxToOverwrite); // will decrement particle count
writeIdx = _nextIdxToOverwrite;
_nextIdxToOverwrite = nextIdx(_nextIdxToOverwrite);
}
else
{
while (isAlive(_nextIdxToWrite))
{
_nextIdxToWrite = nextIdx(_nextIdxToWrite);
}
writeIdx = _nextIdxToWrite;
if (writeIdx + 1 >= _activeBlockLength)
{
_activeBlockLength = writeIdx + 1;
}
_nextIdxToWrite = nextIdx(_nextIdxToWrite);
}
writeParticle(writeIdx, newParticle);
_numParticles++;
float distFromOrogin = newParticle.pos.Length;
if (distFromOrogin > _radius)
{
_radius = distFromOrogin;
}
return(writeIdx);
}
public virtual void removeEffector(SSParticleEffector effector)
{
if (effector.preRemoveHook != null)
{
for (int i = 0; i < _activeBlockLength; ++i)
{
if (isAlive(i))
{
ushort effectorMask = (ushort)((int)_readElement(_effectorMasksHigh, i) << 8
| (int)_readElement(_effectorMasksLow, i));
if (effector.effectorMaskCheck(effectorMask))
{
SSParticle particle = new SSParticle();
readParticle(i, particle);
effector.preRemoveHook(particle);
writeParticle(i, particle);
}
}
}
}
_effectors.Remove(effector);
}
protected override void configureNewParticle(SSParticle p)
{
base.configureNewParticle(p);
float r = Interpolate.Lerp(radiusOffsetMin, radiusOffsetMax, nextFloat());
float theta = Interpolate.Lerp(thetaMin, thetaMax, nextFloat());
float phi = Interpolate.Lerp(phiMin, phiMax, nextFloat());
float xy = (float)Math.Cos(phi);
float x = xy * (float)Math.Cos(theta);
float y = xy * (float)Math.Sin(theta);
float z = (float)Math.Sin(phi);
Vector3 xyz = new Vector3(x, y, z);
p.pos = center + r * xyz;
float velocityMag = Interpolate.Lerp(velocityMagnitudeMin, velocityMagnitudeMax, nextFloat());
p.vel = velocityMag * xyz;
if (orientAwayFromCenter)
{
p.orientation.Z = -theta;
p.orientation.Y = phi;
}
}
public virtual void addEffector(SSParticleEffector effector)
{
effector.reset();
if (effector.preAddHook != null)
{
for (int i = 0; i < _activeBlockLength; ++i)
{
if (isAlive(i))
{
ushort effectorMask = (ushort)((int)readData(_effectorMasksHigh, i) << 8
| (int)readData(_effectorMasksLow, i));
if (effector.effectorMaskCheck(effectorMask))
{
SSParticle particle = new SSParticle();
readParticle(i, particle);
effector.preAddHook(particle);
writeParticle(i, particle);
}
}
}
}
_effectors.Add(effector);
}
protected override void configureNewParticle(SSParticle p)
{
base.configureNewParticle(p);
p.pos = position;
}
/// <summary>
/// To be used by derived classes for shared particle setup
/// </summary>
/// <param name="p">particle to setup</param>
protected virtual void configureNewParticle(SSParticle p)
{
p.life = Interpolate.Lerp(lifeMin, lifeMax, nextFloat());
p.componentScale.X = Interpolate.Lerp(componentScaleMin.X, componentScaleMax.X, nextFloat());
p.componentScale.Y = Interpolate.Lerp(componentScaleMin.Y, componentScaleMax.Y, nextFloat());
p.componentScale.Z = Interpolate.Lerp(componentScaleMin.Z, componentScaleMax.Z, nextFloat());
if (billboardXY)
{
p.billboardXY = true;
}
else
{
p.orientation.X = Interpolate.Lerp(_orientationMin.X, _orientationMax.X, nextFloat());
p.orientation.Y = Interpolate.Lerp(_orientationMin.Y, _orientationMax.Y, nextFloat());
}
p.orientation.Z = Interpolate.Lerp(_orientationMin.Z, _orientationMax.Z, nextFloat());
p.angularVelocity.X = Interpolate.Lerp(angularVelocityMin.X, angularVelocityMax.X, nextFloat());
p.angularVelocity.Y = Interpolate.Lerp(angularVelocityMin.Y, angularVelocityMax.Y, nextFloat());
p.angularVelocity.Z = Interpolate.Lerp(angularVelocityMin.Z, angularVelocityMax.Z, nextFloat());
p.vel.X = Interpolate.Lerp(velocityComponentMin.X, velocityComponentMax.X, nextFloat());
p.vel.Y = Interpolate.Lerp(velocityComponentMin.Y, velocityComponentMax.Y, nextFloat());
p.vel.Z = Interpolate.Lerp(velocityComponentMin.Z, velocityComponentMax.Z, nextFloat());
p.masterScale = Interpolate.Lerp(masterScaleMin, masterScaleMax, nextFloat());
p.mass = Interpolate.Lerp(massMin, massMax, nextFloat());
p.rotationalInnertia = Interpolate.Lerp(rotationalInnertiaMin, rotationalInnertiaMax, nextFloat());
p.drag = Interpolate.Lerp(dragMin, dragMax, nextFloat());
p.rotationalDrag = Interpolate.Lerp(rotationalDragMin, rotationalDragMax, nextFloat());
// color presets
Color4 randPreset;
if (colorPresets != null && colorPresets.Length > 0)
{
randPreset = colorPresets [_rand.Next(0, colorPresets.Length)];
}
else
{
randPreset = new Color4(0f, 0f, 0f, 0f);
}
// color offsets
Color4 randOffset;
randOffset.R = Interpolate.Lerp(colorOffsetComponentMin.R, colorOffsetComponentMax.R, nextFloat());
randOffset.G = Interpolate.Lerp(colorOffsetComponentMin.G, colorOffsetComponentMax.G, nextFloat());
randOffset.B = Interpolate.Lerp(colorOffsetComponentMin.B, colorOffsetComponentMax.B, nextFloat());
randOffset.A = Interpolate.Lerp(colorOffsetComponentMin.A, colorOffsetComponentMax.A, nextFloat());
// color presets + offsets
p.color = Color4Helper.Add(ref randPreset, ref randOffset);
//p.SpriteIndex = SpriteIndices [s_rand.Next(0, SpriteIndices.Length)];
p.spriteRect = spriteRectangles [_rand.Next(0, spriteRectangles.Length)];
p.effectorMask = effectorMasks [_rand.Next(0, effectorMasks.Length)];
}
protected virtual void simulateStep()
{
_radius = 0f;
foreach (SSParticleEffector effector in _effectors)
{
effector.simulateSelf(simulationStep);
}
foreach (SSParticleEmitter emitter in _emitters)
{
emitter.simulateSelf(simulationStep);
}
SSParticle p = new SSParticle();
for (int i = 0; i < _activeBlockLength; ++i)
{
if (isAlive(i))
{
// Alive particle
_lives [i] -= simulationStep;
if (isAlive(i))
{
// Still alive. Update position and run through effectors
readParticle(i, p);
p.vel -= p.drag * p.vel / p.mass;
if (!p.billboardXY)
{
p.angularVelocity.Xy -= p.rotationalDrag * p.angularVelocity.Xy / p.rotationalInnertia;
}
p.angularVelocity.Z -= p.rotationalDrag * p.angularVelocity.Z / p.rotationalInnertia;
p.pos += p.vel * simulationStep;
if (!p.billboardXY)
{
p.orientation.Xy += p.angularVelocity.Xy * simulationStep;
}
p.orientation.Z += p.angularVelocity.Z * simulationStep;
foreach (SSParticleEffector effector in _effectors)
{
effector.simulateParticleEffect(p, simulationStep);
}
writeParticle(i, p);
float distFromOrogin = p.pos.Length;
if (distFromOrogin > _radius)
{
_radius = distFromOrogin;
}
#if false
Console.WriteLine(p.life.ToString() + '\t'
+ p.pos.X + '\t'
+ p.pos.Y + '\t'
+ p.pos.Z + '\t'
+ p.vel.X + '\t'
+ p.vel.Y + '\t'
+ p.vel.Z + '\t'
);
#endif
}
else
{
// Particle just died. Hack to not draw?
writeDataIfNeeded(ref _positions, i, _notAPosition);
if (_numParticles == _capacity || i < _nextIdxToWrite)
{
// released slot will be the next one to be written to
_nextIdxToWrite = i;
}
if (i == _activeBlockLength - 1)
{
// reduction in the active particles block
while (_activeBlockLength > 0 && isDead(_activeBlockLength - 1))
{
--_activeBlockLength;
}
}
--_numParticles;
if (_numParticles == 0)
{
// all particles gone. reset write and overwrite locations for better packing
_nextIdxToWrite = 0;
_nextIdxToOverwrite = 0;
_activeBlockLength = 0;
}
}
}
}
foreach (SSParticleEmitter emitter in _emitters)
{
emitter.simulateEmissions(simulationStep, storeNewParticle);
}
}
protected override void applyValue(SSParticle particle, float value)
{
particle.masterScale = amplification * value;
}
protected virtual void simulateStep()
{
_radius = 0f;
Vector3 centerAccumulator = Vector3.Zero;
foreach (SSParticleEffector effector in _effectors)
{
effector.simulateSelf(simulationStep);
}
foreach (SSParticleEmitter emitter in _emitters)
{
emitter.simulateSelf(simulationStep);
}
SSParticle p = createNewParticle();
for (int i = 0; i < _activeBlockLength; ++i)
{
if (isAlive(i))
{
// Alive particle
_lives [i] -= simulationStep;
if (isAlive(i))
{
// Still alive. Update position and run through effectors
readParticle(i, p);
p.vel -= p.drag * p.vel / p.mass;
if (!p.billboardXY)
{
p.angularVelocity.Xy -= p.rotationalDrag * p.angularVelocity.Xy / p.rotationalInnertia;
}
p.angularVelocity.Z -= p.rotationalDrag * p.angularVelocity.Z / p.rotationalInnertia;
p.pos += p.vel * simulationStep;
if (!p.billboardXY)
{
p.orientation.Xy += p.angularVelocity.Xy * simulationStep;
}
p.orientation.Z += p.angularVelocity.Z * simulationStep;
foreach (SSParticleEffector effector in _effectors)
{
effector.simulateParticleEffect(p, simulationStep);
}
writeParticle(i, p);
centerAccumulator += p.pos;
float distFromOrogin = (p.pos - _center).Length;
if (distFromOrogin > _radius)
{
_radius = distFromOrogin;
}
#if false
Console.WriteLine(p.life.ToString() + '\t'
+ p.pos.X + '\t'
+ p.pos.Y + '\t'
+ p.pos.Z + '\t'
+ p.vel.X + '\t'
+ p.vel.Y + '\t'
+ p.vel.Z + '\t'
);
#endif
}
else
{
destroyParticle(i);
}
}
}
_center = centerAccumulator / _numParticles;
foreach (SSParticleEmitter emitter in _emitters)
{
emitter.simulateEmissions(simulationStep, createNewParticle, storeNewParticle);
}
}
/// <summary> /// Where the logic for changing particle actually takes place /// /// For example, particle.Vel += new Vector3(1f, 0f, 0f) * dT simulates /// acceleration on the X axis. Multiple effectors will combine their /// acceleration effect to determine the final velocity of the particle. // /// </summary> protected abstract void effectParticle(SSParticle particle, float deltaT);
protected abstract void applyValue(SSParticle particle, T value);
protected virtual void effectParticlePeriodic(SSParticle particle, float deltaT)
{
}
protected override void applyValue(SSParticle particle, Vector3 value)
{
particle.componentScale = baseOffset + amplification * value;
}