/// <summary>
/// Emits a single particle, as long as one is available in the emitter group.
/// </summary>
/// <returns>True if a particle was emitted, false if not.</returns>
public bool EmitParticle()
{
_currentParticle = GetFirstAvailable() as GenParticle;
if (_currentParticle != null)
{
// Give the particle a random x and y position, keeping the center of the particle's bounding box within the bounding box of the emitter.
_currentParticle.X = GenU.Random((int)(_bounds.Left - _currentParticle.Bounds.HalfWidth), (int)(_bounds.Right + _currentParticle.Bounds.HalfWidth + 1));
_currentParticle.Y = GenU.Random((int)(_bounds.Top - _currentParticle.Bounds.HalfHeight), (int)(_bounds.Bottom + _currentParticle.Bounds.HalfHeight + 1));
_currentParticle.Velocity.X = GenU.Random(MinParticleSpeedX, MaxParticleSpeedX + 1);
_currentParticle.Velocity.Y = GenU.Random(MinParticleSpeedY, MaxParticleSpeedY + 1);
if ((Parent != null) && InheritVelocity)
_currentParticle.Velocity += Parent.Velocity;
_currentParticle.Rotation = GenU.Random(MinRotation, MaxRotation + 1);
_currentParticle.RotationSpeed = GenU.Random(MinRotationSpeed, MaxRotationSpeed + 1);
_currentParticle.Color = (Colors.Count > 0) ? Colors[0] : Color.White;
_currentParticle.Alpha = StartAlpha;
_currentParticle.Scale.X = _currentParticle.Scale.Y = StartScale;
_currentParticle.Reset();
return true;
}
return false;
}
/// <summary>
/// Adds a particle to the emitter group to be used be the emitter.
/// </summary>
/// <param name="particle">The particle to add to the emitter group.</param>
/// <returns>The particle that was added to the emitter group.</returns>
public GenParticle Add(GenParticle particle)
{
particle.Kill();
base.Add(particle);
return particle;
}
