public override Vector2 GetSpeed(Emitter emitter, Particle particle)
{
//Get direction
Vector2 direction = new Vector2(emitter.Position.X - particle.Position.X, emitter.Position.Y - particle.Position.Y);
//Calculate speed
float speed = MathHelper.Lerp(minSpeed, maxSpeed, (float)random.NextDouble());
//Calculate final vector
return direction / direction.Length() * speed;
}
/// <summary>
/// Spawn a single batch of particles. (if paused == false then Shoot is called every Update)
/// </summary>
public void Shoot()
{
waitList += particlesPerLoop; //Add new particles to waitlist
//Spawn particles and empty waitlist
int spawnQue = (int)waitList;
waitList -= spawnQue;
for (int i = 0; i < spawnQue; i++)
{
//Spawn a particle
Particle newParticle = new Particle(ttl, new Vector2(MathHelper.Lerp(previousPosition.X, position.X, (float)GameManager.Random.NextDouble()), MathHelper.Lerp(previousPosition.Y, position.Y, (float)GameManager.Random.NextDouble())) + spawnShape.GetPosition(), beginSize, endSize, beginColor, endColor, texture, modifiers);
//Set particle speed
newParticle.SetSpeed(spawnSpeed.GetSpeed(this, newParticle));
//Add particle to list
particles.Add(newParticle);
}
}
public override Vector2 GetSpeed(Emitter emitter, Particle particle)
{
return new Vector2(MathHelper.Lerp(minSpeed.X, maxSpeed.X, (float)random.NextDouble()), MathHelper.Lerp(minSpeed.Y, maxSpeed.Y, (float)random.NextDouble()));
}
public abstract Vector2 GetSpeed(Emitter emitter, Particle particle);
public override void Update(Particle particle)
{
particle.Speed += new Vector2((maxSpeed.X - minSpeed.X) * (float)GameManager.Random.NextDouble() + minSpeed.X, (maxSpeed.Y - minSpeed.Y) * (float)GameManager.Random.NextDouble() + minSpeed.Y);
}
public abstract void Update(Particle particle);
public override void Update(Particle particle)
{
particle.Speed += gravity;
}
