/// <summary>
/// Generates a new particle at the specified position.
/// </summary>
/// <returns>A new particle.</returns>
/// <param name="pos">The position of the object to create particles around.</param>
public virtual Particle GenerateParticle(Vector2 pos)
{
Particle particle = Pool.GetParticle(_textures[_random.Next(_textures.Count)], pos);
particle.Velocity = _randomProperties.Speed.HasValue ? _randomProperties.Speed.Value : new Vector2((_random.NextDouble() * 2 - 1).ToFloat(), (_random.NextDouble() * 2 - 1).ToFloat());
particle.AngularVelocity = SpriteRotation.FromDegrees(_randomProperties.RotationChange.HasValue ? _randomProperties.RotationChange.Value : MathHelper.ToDegrees(Convert.ToSingle(_random.NextDouble() * 2 - 1) / 10f));
particle.TintColor = _randomProperties.Tint.HasValue ? _randomProperties.Tint.Value : new Color(_random.Next(255), _random.Next(255), _random.Next(255), _random.Next(255));
particle.Scale = _randomProperties.Scale.HasValue ? _randomProperties.Scale.Value : new Vector2(_random.NextDouble().ToFloat() / ScaleFactor);
particle.TimeToLive = _randomProperties.TimeToLive.HasValue ? _randomProperties.TimeToLive.Value : TimeSpan.FromTicks(_random.Next((int)_minTTL.Ticks, (int)_maxTTL.Ticks));
particle.TimeToLiveSettings = _ttlSettings;
if (_randomProperties.ColorFactor.HasValue)
{
particle.ColorChange = _randomProperties.ColorFactor.Value;
}
else if (_minumumParticleColorChangeRate != 1)
{
float particleColorDegenerationRate = _random.NextDouble().ToFloat();
while (particleColorDegenerationRate < _minumumParticleColorChangeRate)
{
particleColorDegenerationRate += Convert.ToSingle(_random.NextDouble() % 0.15);
}
particle.ColorChange = particleColorDegenerationRate;
}
particle.UseCenterAsOrigin = true;
return(particle);
}
public void FromDegreesTest()
{
float degrees = 0F; // TODO: Initialize to an appropriate value
SpriteRotation expected = new SpriteRotation(); // TODO: Initialize to an appropriate value
SpriteRotation actual;
actual = SpriteRotation.FromDegrees(degrees);
Assert.AreEqual(expected, actual);
Assert.Inconclusive("Verify the correctness of this test method.");
}