//===========================================================
// Particle Update Functions
//===========================================================
protected void UpdateParticleFlashSize(DefaultSprite3DBillboardTextureCoordinatesParticle particle, float elapsedTimeInSeconds)
{
// Have the particle reach its full size when it reaches half its lifetime, and then shrink back to nothing
particle.Size = MathHelper.Lerp(particle.StartSize, particle.EndSize, DPSFHelper.InterpolationAmountForEqualLerpInAndLerpOut(particle.NormalizedElapsedTime));
}
