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]);
}
}
}
}
private void toolStripButtonViewShape_Click(object sender, EventArgs e)
{
ShapeSelection shapeSelection = new ShapeSelection();
EmitterShape currentShape = particleEffectControl.ParticleEffect.Emitter.Shape;
shapeSelection.ShapeType = currentShape.Type;
shapeSelection.ShapeOffset = currentShape.Offset;
shapeSelection.ShapeSize = currentShape.Size;
shapeSelection.TexturePath = lastTextureMaskPath;
if (shapeSelection.ShowDialog() == DialogResult.OK)
{
EmitterShape shape = new EmitterShape(shapeSelection.ShapeType, shapeSelection.ShapeSize,
particleEffectControl.ParticleEffect.Position, shapeSelection.ShapeOffset);
// if it's a mask, construct it
if (shape.Type == EmitterShapeType.TextureMask)
{
try
{
lastTextureMaskPath = shapeSelection.TexturePath;
Texture2D maskTexture = Texture2D.FromFile(DrawingManager.GraphicsDevice, shapeSelection.TexturePath);
shape.CreateTextureMaskFromTexture2D(maskTexture, shapeSelection.UseFilled, shapeSelection.UseLeft,
shapeSelection.UseRight, shapeSelection.UseTop, shapeSelection.UseBottom);
}
catch
{
MessageBox.Show("Error: " + e.ToString(), "Error while loading texture",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
shape.Initialize();
particleEffectControl.ParticleEffect.Emitter.Shape = shape;
}
}
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]);
}
}
}
}