// Randomizes some properties for a particle, then calls Initialize on it.
// This can be overriden by subclasses if they want to modify the way particles
// are created. For example, SmokePlumeParticleSystem overrides this function
// make all particles accelerate to the right, simulating wind.
protected virtual void InitializeParticle(Particle particle, Vector2 where)
{
// First, call PickRandomDirection to figure out which way the particle
// will be moving. Velocity and acceleration values will come from this.
Vector2 direction = PickRandomDirection();
// Pick some random values for our particle.
float velocity = Utils.RandomBetween(minInitialSpeed, maxInitialSpeed);
float acceleration = Utils.RandomBetween(minAcceleration, maxAcceleration);
float lifetime = Utils.RandomBetween(minLifetime, maxLifetime);
float scale = Utils.RandomBetween(minScale, maxScale);
float rotationSpeed = Utils.RandomBetween(minRotationSpeed, maxRotationSpeed);
// Then initialize the particle with these random values.
particle.Initialize(where, velocity * direction, acceleration * direction, lifetime, scale, rotationSpeed);
}
// Randomizes some properties for a particle, then calls Initialize on it.
// This can be overriden by subclasses if they want to modify the way particles
// are created. For example, SmokePlumeParticleSystem overrides this function
// make all particles accelerate to the right, simulating wind.
protected virtual void InitializeParticle(Particle particle, Vector2 where)
{
// First, call PickRandomDirection to figure out which way the particle
// will be moving. Velocity and acceleration values will come from this.
Vector2 direction = PickRandomDirection();
// Pick some random values for our particle.
float velocity = Utils.RandomBetween(minInitialSpeed, maxInitialSpeed);
float acceleration = Utils.RandomBetween(minAcceleration, maxAcceleration);
float lifetime = Utils.RandomBetween(minLifetime, maxLifetime);
float scale = Utils.RandomBetween(minScale, maxScale);
float rotationSpeed = Utils.RandomBetween(minRotationSpeed, maxRotationSpeed);
// Then initialize the particle with these random values.
particle.Initialize(where, velocity * direction, acceleration * direction, lifetime, scale, rotationSpeed);
}
