private void SetupGeometry()
{
this.mesh.ClearGroups();
this.mesh.AddGroup().Geometry = (IIndexedPrimitiveCollection)(this.Geometry = new ShaderInstancedIndexedPrimitives <VertexPositionTextureInstance, Matrix>(PrimitiveType.TriangleList, 60));
this.Geometry.Vertices = new VertexPositionTextureInstance[4]
{
new VertexPositionTextureInstance(new Vector3(-0.5f, -0.5f, 0.0f), new Vector2(0.0f, 1f)),
new VertexPositionTextureInstance(new Vector3(-0.5f, 0.5f, 0.0f), new Vector2(0.0f, 0.0f)),
new VertexPositionTextureInstance(new Vector3(0.5f, 0.5f, 0.0f), new Vector2(1f, 0.0f)),
new VertexPositionTextureInstance(new Vector3(0.5f, -0.5f, 0.0f), new Vector2(1f, 1f))
};
this.Geometry.Indices = new int[6]
{
0,
1,
2,
0,
2,
3
};
this.Geometry.Instances = new Matrix[this.MaximumCount];
this.Geometry.MaximizeBuffers(this.MaximumCount);
int size = this.particles.Size;
List <PlaneParticleSystem.Particle> list = new List <PlaneParticleSystem.Particle>();
while (this.particles.Available > 0)
{
PlaneParticleSystem.Particle particle = this.particles.Take();
particle.InstanceIndex = --size;
list.Add(particle);
}
foreach (PlaneParticleSystem.Particle particle in list)
{
this.particles.Return(particle);
}
this.mesh.Texture.Set((Texture)this.settings.Texture);
}
public void Update(TimeSpan elapsed)
{
if (!this.Enabled)
{
return;
}
BoundingFrustum boundingFrustum = this.CameraManager.Frustum;
if (!this.effect.ForcedViewProjection.HasValue)
{
Vector3 position = this.CameraManager.Position;
Vector3 center = this.CameraManager.Center;
this.BillboardingPhi = (float)Math.Atan2((double)position.X - (double)center.X, (double)position.Z - (double)center.Z);
}
else
{
boundingFrustum = this.cachedFrustum;
}
if ((double)this.settings.SystemLifetime != 0.0)
{
this.age += elapsed;
if (this.age.TotalSeconds > (double)this.settings.SystemLifetime)
{
this.Enabled = false;
this.Visible = false;
this.Dead = true;
foreach (PlaneParticleSystem.Particle particle in this.activeParticles)
{
this.particles.Return(particle);
}
this.activeParticles.Clear();
return;
}
}
if (this.FadingOut)
{
this.SinceFadingOut += (float)elapsed.TotalSeconds;
this.FadeOutAge = FezMath.Saturate(this.SinceFadingOut / this.FadeOutDuration);
if ((double)this.FadeOutAge >= 1.0)
{
this.Enabled = false;
this.Visible = false;
this.Dead = true;
foreach (PlaneParticleSystem.Particle particle in this.activeParticles)
{
this.particles.Return(particle);
}
this.activeParticles.Clear();
return;
}
}
if (!this.InScreen)
{
return;
}
this.sinceSpawned -= elapsed;
bool flag = this.untilNextSpawn.Ticks > 0L;
this.untilNextSpawn -= elapsed;
while (this.sinceSpawned.Ticks <= 0L || flag && this.untilNextSpawn.Ticks <= 0L)
{
if (flag && this.untilNextSpawn.Ticks <= 0L)
{
for (int index = 0; index < this.settings.SpawnBatchSize; ++index)
{
if (this.particles.Available > 0)
{
PlaneParticleSystem.Particle particle = this.particles.Take();
particle.Initialize(this);
this.activeParticles.Add(particle);
}
}
flag = false;
}
if (this.sinceSpawned.Ticks <= 0L)
{
this.PrepareNextSpawn();
}
}
int val1 = -1;
float elapsedSeconds = (float)elapsed.TotalSeconds;
int num1 = !this.HalfUpdate || !this.halfToProcess ? 0 : this.activeParticles.Count / 2;
int num2 = !this.HalfUpdate || this.halfToProcess ? this.activeParticles.Count : this.activeParticles.Count / 2;
for (int index = num1; index < num2; ++index)
{
PlaneParticleSystem.Particle particle = this.activeParticles[index];
particle.Update(elapsedSeconds);
if (this.Settings.UseCallback && !particle.DeathProvoked)
{
Vector3 vector3 = particle.Position;
TrileEmplacement id = new TrileEmplacement((int)vector3.X, (int)vector3.Y, (int)vector3.Z);
if (this.LevelManager.IsInRange(ref id))
{
TrileInstance trileInstance = this.LevelManager.TrileInstanceAt(ref id);
if (trileInstance != null && trileInstance.Enabled && (!trileInstance.Trile.Immaterial && boundingFrustum.Contains(trileInstance.Center) != ContainmentType.Disjoint))
{
this.CollisionCallback(particle.Position * FezMath.XZMask + trileInstance.Center * Vector3.UnitY + trileInstance.Trile.Size.Y / 2f * Vector3.UnitY);
particle.ProvokeDeath();
}
}
}
if (particle.Dead)
{
particle.Hide();
this.activeParticles.RemoveAt(index);
--index;
--num2;
this.particles.Return(particle);
}
else
{
val1 = Math.Max(val1, particle.InstanceIndex);
}
}
this.Geometry.InstanceCount = val1;
}