protected override void InitializeParticle(Particle p, Vector2 where,Vector2 direction)
{
direction = PickRandomDirection();
// pick some random values for our particle
float velocity =
RandomNumberProvider.RandomBetween(minInitialSpeed, maxInitialSpeed);
float acceleration =
RandomNumberProvider.RandomBetween(minAcceleration, maxAcceleration);
float lifetime =
RandomNumberProvider.RandomBetween(minLifetime, maxLifetime);
float scale =
RandomNumberProvider.RandomBetween(minScale, maxScale);
float rotationSpeed =
RandomNumberProvider.RandomBetween(minRotationSpeed, maxRotationSpeed);
// then initialize it with those random values. initialize will save those,
// and make sure it is marked as active.
p.Initialize(
where, velocity * direction, acceleration * direction,
lifetime, scale, rotationSpeed);
}
public override void Initialize()
{
InitializeConstants();
// calculate the total number of particles we will ever need, using the
// max number of effects and the max number of particles per effect.
particles = new Particle[howManyEffects * maxNumParticles];
freeParticles = new Queue<Particle>(howManyEffects * maxNumParticles);
for (int i = 0; i < particles.Length; i++)
{
particles[i] = new Particle();
freeParticles.Enqueue(particles[i]);
}
base.Initialize();
}
protected override void InitializeParticle(Particle p, Vector2 where,Vector2 direction)
{
base.InitializeParticle(p, where, direction);
p.Acceleration = new Vector2(0, 0);
}