/// <summary>
/// A percentageArray with only one value
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static PercentageArray <T> Singleton(T value)
{
PercentageArray <T> array = new PercentageArray <T>(1);
array[0] = new PercentageElement <T>(0, value);
return(array);
}
public PercentageArray <T> Clone()
{
PercentageArray <T> clone = new PercentageArray <T>(this.array.Length);
for (int i = 0; i < clone.Length; i++)
{
clone[i] = this.array[i].Clone();
}
return(clone);
}
/// <summary>
/// A percentage array with certain values. The percentages are evenly spaced.
/// </summary>
/// <param name="values"></param>
/// <returns></returns>
public static PercentageArray <T> FromArray(T[] values)
{
PercentageArray <T> array = new PercentageArray <T>(values.Length);
for (int i = 0; i < values.Length; i++)
{
array[i] = new PercentageElement <T>(100 * i / (values.Length - 1), values[i]);
}
return(array);
}
/// <summary>
/// A percentage array with percentages and values
/// </summary>
/// <param name="values">Params in the form: Pct, Value, Pct, Value, ...</param>
/// <returns></returns>
public static PercentageArray <T> FromParams(object[] values)
{
PercentageArray <T> array = new PercentageArray <T>(values.Length / 2);
for (int i = 0; i < values.Length; i += 2)
{
array[i / 2] = new PercentageElement <T>((float)values[i], (T)values[i + 1]);
}
return(array);
}
public virtual void Initialize(Vector3 position, Vector3 velocity, Vector3 acceleration, float lifeTime,
PercentageArray <Color> colorPs, PercentageArray <float> scalePs, PercentageArray <float> alphaPs, Geo geo)
{
this.position = position;
this.velocity = velocity;
this.acceleration = acceleration;
this.timeLeft = this.lifeTime = lifeTime;
this.colorPercentages = colorPs;
this.scalePercentages = scalePs;
this.alphaPercentages = alphaPs;
this.geometry = geo;
}
protected virtual ParticleT createParticle(float elepsedS)
{
float percentage = this.calculateEmitterPercentage();
// Calculate the lifetime
float lifetime = 1f;
if (this.AverageLifetimes.Length == 1)
{
lifetime = this.AverageLifetimes[0].Value;
}
else
{
int i = this.AverageLifetimes.GetToIndex(percentage);
lifetime = GameMath.Lerp(this.AverageLifetimes[i - 1].Value, this.AverageLifetimes[i].Value, AverageLifetimes.GetLerpFactor(i, percentage));
}
lifetime = (float)GlobalRandom.Rand(this.Distribution, lifetime, this.LifeTimeDeviation);
// Adjust the scales
PercentageArray <float> scales = this.ScalePercentages.Clone();
if (ScaleDiesToo)
{
float factor = lifetime / this.AverageLifetimes[0].Value;
for (int i = 0; i < scales.Length; i++)
{
scales[i].Value = scales[i].Value * factor;
}
}
// Adjust the alphas
PercentageArray <float> alphas = this.AlphaPercentages.Clone();
if (AlphaDiesToo)
{
float factor = lifetime / this.AverageLifetimes[0].Value;
for (int i = 0; i < alphas.Length; i++)
{
alphas[i].Value = alphas[i].Value * factor;
}
}
// Create the particle
ParticleT particle = this.createParticle(elepsedS, lifetime, scales, alphas);
return(particle);
}
//protected abstract ParticleT createParticle(float elepsedS, float lifetime, PercentageArray<float> scales, byte alpha);
protected virtual ParticleT createParticle(float elepsedS, float lifetime, PercentageArray <float> scales, PercentageArray <float> alphas)
{
Vector3 velocity = this.Velocity.Create();
ParticleT particle = new ParticleT();
particle.Initialize(
this.Position + velocity * elepsedS * (GlobalRandom.Next(4) + 1f) / 4f,
velocity,
this.Acceleration.Create(),
lifetime,
this.ColorPercentages,
scales,
alphas,
this.Geometry
);
return(particle);
}
/// <summary>
/// Set the percentages and alpha values (in [0,1]) (in the form: pct, alpha, pct, alpha, ...)
/// </summary>
/// <param name="percentageAlphaValues"></param>
public void SetPercentageAlphas(params object[] percentageAlphaValues)
{
this.AlphaPercentages = PercentageArray <float> .FromParams(percentageAlphaValues);
}
/// <summary>
/// Set the alpha values (in [0,1]) (and interpolate the percentages linearely)
/// </summary>
/// <param name="scales"></param>
public void SetAlphas(params float[] scales)
{
this.AlphaPercentages = PercentageArray <float> .FromArray(scales);
}
/// <summary>
/// Set the percentages and scales (in the form: pct, scale, pct, scale, ...)
/// </summary>
/// <param name="percentageScales"></param>
public void SetPercentageScales(params object[] percentageScales)
{
this.ScalePercentages = PercentageArray <float> .FromParams(percentageScales);
}
/// <summary>
/// Set the scales (and interpolate the percentages linearely)
/// </summary>
/// <param name="scales"></param>
public void SetScales(params float[] scales)
{
this.ScalePercentages = PercentageArray <float> .FromArray(scales);
}
/// <summary>
/// Set the colours (and interpolate the percentages linearely)
/// </summary>
/// <param name="colors"></param>
public void SetColors(params Color[] colors)
{
this.ColorPercentages = PercentageArray <Color> .FromArray(colors);
}
/// <summary>
/// Set the percentages and lifetimes (in the form: pct, time, pct, time, ...) (in s)
/// </summary>
/// <param name="percentageLifetimes"></param>
public void SetPercentageAverageLifetimes(params object[] percentageLifetimes)
{
this.AverageLifetimes = PercentageArray <float> .FromParams(percentageLifetimes);
}
protected override TextParticle3D createParticle(float elepsedS, float lifetime, PercentageArray <float> scales, PercentageArray <float> alphas)
{
TextParticle3D particle = base.createParticle(elepsedS, lifetime, scales, alphas);
particle.SetText(this.text);
return(particle);
}
/// <summary>
/// Set the lifetimes (and interpolate the percentages linearely) (in s)
/// </summary>
/// <param name="lifetimes"></param>
public void SetAverageLifetimes(params float[] lifetimes)
{
this.AverageLifetimes = PercentageArray <float> .FromArray(lifetimes);
}
public override void Initialize(Vector3 position, Vector3 velocity, Vector3 acceleration, float lifeTime, PercentageArray <Color> colorPs, PercentageArray <float> scalePs, PercentageArray <float> alphaPs, Sprite2DGeometry geo)
{
base.Initialize(position, velocity, acceleration, lifeTime, colorPs, scalePs, alphaPs, geo);
this.position.Z = 0;
this.velocity.Z = 0;
this.acceleration.Z = 0;
}
/// <summary>
/// Set the percentages and colours (in the form: pct, color, pct, color, ...)
/// </summary>
/// <param name="percentageColors"></param>
public void SetPercentageColors(params object[] percentageColors)
{
this.ColorPercentages = PercentageArray <Color> .FromParams(percentageColors);
}