public void Birth(Particle particle)
{
particle.position.X = (float)(rand.NextDouble() - 0.5f) * radius[entity.curr_size];
particle.position.Y = (float)(rand.NextDouble() - 0.5f) * radius[entity.curr_size];
particle.position.Z = (float)(rand.NextDouble() - 0.5f) * radius[entity.curr_size];
particle.position.X += entity.position.X;
particle.position.Y += entity.position.Y;
particle.position.Z += entity.position.Z;
particle.region = Resources.bubble_texture_region;
particle.scale = new Vector2(particle.region.width * (1f / particle.region.texture.Width), particle.region.height * (1f / particle.region.texture.Height));
particle.scale *= (float)(rand.NextDouble()) * scale[entity.curr_size];
particle.color.A = 0;
}
public ParticleManager()
{
particle_array = new Particle[NUM_PARTICLES];
particle_pool = new Queue<Particle>(NUM_PARTICLES);
for (int i = 0; i < particle_array.Length; i++)
{
Particle particle = new Particle();
particle_array[i] = particle;
particle_pool.Enqueue(particle);
particle.in_pool = true;
particle.is_alive = false;
}
}
public void Add(Particle particle)
{
TextureRegion region = particle.region;
ParticleInfo particleinfo = new ParticleInfo(region, particle.color, ref particle.world);
if (!particles.ContainsKey(region.texture))
particles[region.texture] = new List<ParticleInfo>();
particles[region.texture].Add(particleinfo);
}
public void Frame(Particle particle, double elapsed)
{
float fade = 1 - particle.age / particle.life;
fade = fade * 0.3f;
particle.color.A = (byte)(byte.MaxValue * fade);
particle.velocity.X = MathHelper.Lerp(particle.velocity.X, (float)(rand.NextDouble() - 0.5f), 0.0005f);
particle.velocity.Y = MathHelper.Lerp(particle.velocity.Y, (float)(rand.NextDouble() - 0.5f), 0.0005f);
particle.velocity.Z = MathHelper.Lerp(particle.velocity.Z, (float)(rand.NextDouble() - 0.5f), 0.0005f);
}
public void Tail(Particle parent)
{
ParticleManager particlemanager = ParticleManager.GetInstance();
Particle child = particlemanager.Emit(tail_logic, (float)rand.NextDouble());
if (child == null)
return;
child.scale = parent.scale;
child.position = parent.position;
}
public void Frame(Particle particle, double elapsed)
{
time += (float)elapsed;
if (time > 0.1f)
{
Tail(particle);
time = 0;
}
float alpha = particle.age / particle.life;
alpha = (float)Math.Sin(alpha * MathHelper.Pi);
particle.color.A = (byte)(byte.MaxValue * alpha);
particle.velocity.X = MathHelper.Lerp(particle.velocity.X, (float)(rand.NextDouble() - 0.5f), 0.003f);
particle.velocity.Y = MathHelper.Lerp(particle.velocity.Y, (float)(rand.NextDouble() - 0.5f), 0.003f);
particle.velocity.Z = MathHelper.Lerp(particle.velocity.Z, (float)(rand.NextDouble() - 0.5f), 0.003f);
}
public void Death(Particle particle)
{
Emit();
}
public void Frame(Particle particle, double elapsed)
{
float alpha = 1 - particle.age / particle.life;
particle.color.A = (byte)(byte.MaxValue * alpha);
}
public void Death(Particle particle)
{
}
public void Birth(Particle particle)
{
particle.region = Resources.particle_texture_region;
particle.scale = new Vector2(particle.region.width * (1f / particle.region.texture.Width), particle.region.height * (1f / particle.region.texture.Height));
}
public void Death(Particle particle)
{
count--;
}
public void Frame(Particle particle, double elapsed)
{
float alpha = particle.age / particle.life;
alpha = (float)Math.Sin(alpha*MathHelper.Pi);
particle.color.A = (byte)(byte.MaxValue * alpha);
particle.velocity.X = MathHelper.Lerp(particle.velocity.X, (float)(rand.NextDouble() - 0.5f), 0.001f);
particle.velocity.Y = MathHelper.Lerp(particle.velocity.Y, (float)(rand.NextDouble() - 0.5f), 0.001f);
particle.velocity.Z = MathHelper.Lerp(particle.velocity.Z, (float)(rand.NextDouble() - 0.5f), 0.001f);
float distance;
Vector3.Distance(ref particle.position, ref entity.position, out distance);
if (distance < 1)
{
float amount = 0.0002f;
particle.velocity.X = MathHelper.Lerp(particle.velocity.X, entity.velocity.X, amount);
particle.velocity.Y = MathHelper.Lerp(particle.velocity.Y, entity.velocity.Y, amount);
}
}
public void Frame(Particle particle, double elapsed)
{
float alpha = particle.age / particle.life;
alpha = (float)Math.Sin(alpha * MathHelper.Pi) * 0.15f;
particle.color.A = (byte)(byte.MaxValue * alpha);
particle.velocity.X = MathHelper.Lerp(particle.velocity.X, (float)(rand.NextDouble() - 0.5f), 0.001f);
particle.velocity.Y = MathHelper.Lerp(particle.velocity.Y, (float)(rand.NextDouble() - 0.5f), 0.001f);
particle.velocity.Z = MathHelper.Lerp(particle.velocity.Z, (float)(rand.NextDouble() - 0.5f), 0.001f);
}