protected override void InitializeParticle(Particle p, Vector2 where)
{
base.InitializeParticle(p, where);
// the base is mostly good, but we want to simulate a little bit of wind
// heading to the right.
p.Acceleration.X += MoteurParticule.RandomBetween(10, 50);
}
protected override void InitializeParticle(Particle p, Vector2 where, Heros heros)
{
base.InitializeParticle(p, where, heros);
p.Acceleration = -p.Velocity / p.Lifetime;
}
protected virtual void InitializeParticle(Particle p, Vector2 where)
{
// first, call PickRandomDirection to figure out which way the particle
// will be moving. velocity and acceleration's values will come from this.
Vector2 direction;
float angle = MoteurParticule.RandomBetween(0, MathHelper.TwoPi);
direction = new Vector2((float)Math.Cos(angle), (float)Math.Sin(angle));
// 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);
}
// 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);
}
public override void Initialize()
{
InitializeConstants();
particles = new Particle[howManyEffects * maxNumParticles];
freeParticles = new List<Particle>(howManyEffects * maxNumParticles);
for (int i = 0; i < particles.Length; i++)
{
particles[i] = new Particle();
freeParticles.Add(particles[i]);
}
base.Initialize();
}
