// surcharge
public void AddParticles(Vector2 where, Statue statue)
{
// the number of particles we want for this effect is a random number
// somewhere between the two constants specified by the subclasses.
int numParticles =
MoteurParticule.Random.Next(minNumParticles, maxNumParticles);
// create that many particles, if you can.
for (int i = 0; i < numParticles && freeParticles.Count > 0; i++)
{
// grab a particle from the freeParticles queue, and Initialize it.
Particle p = freeParticles[0];
freeParticles.RemoveAt(0);
InitializeParticle(p, where, statue);
}
}
// surcharge
protected virtual void InitializeParticle(Particle p, Vector2 where, Statue statue)
{
// first, call PickRandomDirection to figure out which way the particle
// will be moving. velocity and acceleration's values will come from this.
Vector2 direction;
if (statue.SourceRectangle.Value.Y == 357)
direction = new Vector2(0, -1);
else if (statue.SourceRectangle.Value.Y == 0)
direction = new Vector2(0, 1);
else if (statue.SourceRectangle.Value.Y == 123)
direction = new Vector2(-1, 0);
else
direction = new Vector2(1, 0);
// pick some random values for our particle
float velocity =
MoteurParticule.RandomBetween(minInitialSpeed, maxInitialSpeed);
float acceleration =
MoteurParticule.RandomBetween(minAcceleration, maxAcceleration);
float lifetime =
MoteurParticule.RandomBetween(minLifetime, maxLifetime);
float scale =
MoteurParticule.RandomBetween(minScale, maxScale);
float rotationSpeed =
MoteurParticule.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);
}