public Emitter() { particleTypes = new List <ParticleType>(); shape = new EmitterShape(EmitterShapeType.Point); emissionAngle = new LinearProperty(0, "Emission Angle", 0, 360); emissionRange = new LinearProperty(360, "Emission Range", 0, 360); globalOpacityModifier = new LinearProperty(1, "Global Opacity Modifier", 0, 1); _attractorEnabled = false; _attractorForce = 2f; _attractorPositionOffset = new Vector2(0, 0); _isStopped = false; _isPaused = false; }
public void Update(float elapsed, float lerpLife, EmitterShape emitterShape, float opacityModifier, float emitterEmissionAngle, float emitterEmissionRange) { // if we are starting for the first time in this lifespan if (lerpLife == 0) { _singleParticleEmitted = false; } this._emitterEmissionAngle = emitterEmissionAngle; this._emitterEmissionRange = emitterEmissionRange; if (_parent.IsStopped == false) { if (_useSingleParticle == true) { if (_singleParticleEmitted == false) { SpawnParticle(lerpLife, emitterShape.GetNewEmissionPoint()); _singleParticleEmitted = true; } } else { float _newQuantity = Particle.GetLerpValueWithVariation(_quantity.Values, _quantityVariation.Values, lerpLife); _newQuantity = _newQuantity / 60.0f; _emissionTimerAccumulator += _newQuantity; while (_emissionTimerAccumulator >= 1) { SpawnParticle(lerpLife, emitterShape.GetNewEmissionPoint()); _emissionTimerAccumulator -= 1; } } } for (int i = 0; i < _particles.Count; i++) { if (_particles[i].IsActive) { _particles[i].Update(elapsed, opacityModifier); // if it's dead now if (_particles[i].IsActive == false) { // add it to the recycling queue _freeParticles.Enqueue(_particles[i]); } } } }