/// <summary>
/// Emits a single particle
/// </summary>
/// <param name="init">Particle creation parameters to adjust</param>
internal override void Emit(ref ParticleInitParams init)
{
float angle = _direction + ((float)_rnd.NextDouble() * _spread) - (_spread / 2f);
init.Angle = angle;
init.Position = new Vector2(Position.X, Position.Y);
init.Rotation = angle;
}
/// <summary>
/// Emits a single particle
/// </summary>
/// <param name="init">Particle init parameters to modify</param>
internal override void Emit(ref ParticleInitParams init)
{
float angle = (float)_rnd.NextDouble() * MathHelper.TwoPi;
init.Angle = angle;
init.Position = new Vector2(
Position.X + (float)Math.Sin(angle) * _radius,
Position.Y + (float)Math.Cos(angle) * _radius);
init.Rotation = angle;
}
/// <summary>
/// Emits a single particle
/// </summary>
/// <param name="init">Particle init parameters to modify</param>
internal override void Emit(ref ParticleInitParams init)
{
init.Position.X = Position.X;
init.Position.Y = Position.Y;
float angle = (float)_rnd.NextDouble() * MathHelper.TwoPi;
init.Angle = angle;
init.Rotation = angle;
}
/// <summary>
/// Emits a single particle
/// </summary>
/// <param name="createParams">Particle init parameters to modify</param>
internal override void Emit(ref ParticleInitParams init)
{
//Go to the next segment in the spiral
if (_dir == SpiralDirection.AntiClockwise)
{
_currentSegment++;
if (_currentSegment >= _segments) { _currentSegment = 0; }
}
else
{
_currentSegment--;
if (_currentSegment <= 0) { _currentSegment = _segments; }
}
float angle = (MathHelper.TwoPi / _segments) * _currentSegment;
init.Angle = angle;
init.Position = new Vector2(
Position.X + (float)Math.Sin(angle) * _radius,
Position.Y + (float)Math.Cos(angle) * _radius);
init.Rotation = angle;
}
/// <summary>
/// Reincarnates the particle with new properties
/// </summary>
public void Reincarnate( ParticleInitParams init)
{
_creationTime = Environment.TickCount;
_lifespan = _emitter.ParticleLifespanVariated;
_baseRotation = init.Rotation;
_additionalRotation = 0f;
_position = init.Position;
_speed = _emitter.ParticleSpeedVariated;
_angle = init.Angle;
_scale = _emitter.InitialScale;
_color = new Vector4();
//_color = new Vector4(
// _emitter.StartingAlpha, _emitter.StartingRed,
// _emitter.StartingGreen, _emitter.StartingBlue);
_alive = true;
_emitter.ActiveParticles.Add(this);
}
/// <summary> /// Emits a single particle /// </summary> internal abstract void Emit(ref ParticleInitParams init);
/// <summary>
/// Triggers the particles emitter
/// </summary>
public void Trigger()
{
ParticleInitParams init = new ParticleInitParams();
for (int i = 0; i < _emitQuantity; i++)
{
Emit(ref init);
if (_limbo.Count > 0)
{
_limbo.Dequeue().Reincarnate(init);
}
else
{
_activeParticles.Add(new Particle(this, init));
}
}
}
