// OPT: This could prolly be more efficient.
// But a core i5 handles 50k particles without much sweat, so, no sweat.
public void Update(double dt, ParticleGroup group)
{
var fdt = (float)dt;
var particles = group.Particles;
// We iterate downwards through the list so if we remove a particle we don't
// reorder anything we haven't already updated.
for (int i = particles.Count - 1; i > -1; i--)
{
var p = particles[i];
if (scaleWithTime)
{
p.Scale += (deltaScale * fdt);
p.Scale = (float)SMath.Clamp(p.Scale, 0.1, 5);
}
if (changeColorWithTime)
{
doColorFade(ref p, group.colorFader, fdt);
//group.colorFader.setColor(ref p);
}
doMovement(ref p, dt);
particles[i] = p;
if (p.Life < 0)
{
group.Remove(i);
}
}
}
public override void Update(double dt, ParticleGroup particle_group)
{
Vector2d position = Vector2d.Zero, angleVec = Vector2d.Zero;
float rand_radius = radius * (float)rand.NextDouble();
//current_angle = start_angle * Math.PI / 180;
lastTime += dt;
//for (int i = 0; i <= 360 && lastTime >= nextTime; i += 10, current_angle++) { //while (lastTime >= nextTime)
current_angle++;
if (current_angle > end_angle - 1)
{
current_angle = start_angle;
nextTime += emitDelay;
//break;
}
//angle = random.Next(start_angle, end_angle);
position = new Vector2d(rand_radius * Math.Cos(current_angle * Math.PI / 180), rand_radius * Math.Sin(current_angle * Math.PI / 180));
Vector2d.Normalize(ref position, out angleVec);
//Log.Message(String.Format("Particle Angle {0} , {1} , {2}", current_angle, position.X, position.Y));
particle_group.AddParticle(position, velocityMagnitude * angleVec, Color, maxLifeTime);
//}
}
public ParticleRenderState(Texture tex, ParticleGroup group, Vector2?scale = null, float rotation = 0.0f)
: base("ParticleRenderer")
{
texture = tex;
Log.Assert(texture != null);
ParticleGroup = group;
Rotation = rotation;
Scale = scale ?? Vector2.One;
}
public ParticleComponent(double _velocityMagnitude, int MaxParticles = 1024, float _gravity = 1f, float _deltaScale = 0f)
: base()
{
HandledEvents = EventType.OnUpdate;
//Setting these for Serialization purposes
//this.velocityMagnitude = _velocityMagnitude;
this.MaxParticles = MaxParticles;
//Particle Controller Properties
controller = new ParticleController(Vector2d.One, _velocityMagnitude, _gravity, _deltaScale);
particleGroup = new ParticleGroup(MaxParticles);
Texture texture = Resources.TheResources.GetTexture("dot");
RenderState = new ParticleRenderState(texture, particleGroup);
}
/// <summary>
///
/// </summary>
/// <param name="dt"></param>
public override void Update(double dt, ParticleGroup particle_group)
{
Vector2d position = Vector2d.Zero, angleVec = Vector2d.Zero;
//current_angle = start_angle * Math.PI / 180;
lastTime += dt;
//for (int i = 0; i <= 360 && lastTime >= nextTime; i += 10, current_angle++)
while (lastTime >= nextTime)
{
nextTime += emitDelay;
position = new Vector2d(Math.Cos(angle * Math.PI / 180), Math.Sin(angle * Math.PI / 180));
Vector2d.Normalize(ref position, out angleVec);
//Log.Message(String.Format("Particle Angle {0} , {1} , {2}", current_angle, position.X, position.Y));
particle_group.AddParticle(position, velocityMagnitude * angleVec, Color, maxLifeTime);
}
}
public override void Update(double dt, ParticleGroup particle_group)
{
double xV = rand.NextDouble() * range.X * direction;
direction *= -1;
//double yV = rand.NextDouble() * velocity.Y;
//Will Add Code Soon
Vector2d position = Vector2d.Zero, angleVec = new Vector2d(xV, range.Y);
//current_angle = start_angle * Math.PI / 180;
lastTime += dt;
//for (int i = 0; i <= 360 && lastTime >= nextTime; i += 10, current_angle++)
while (lastTime >= nextTime)
{
nextTime += emitDelay;
//position = new Vector2d(Math.Cos(angle * Math.PI / 180), Math.Sin(angle * Math.PI / 180));
Vector2d.Normalize(ref angleVec, out angleVec);
particle_group.AddParticle(position, velocityMagnitude * angleVec, Color, maxLifeTime);
}
}
public abstract void Update(double dt, ParticleGroup particle_group);
