protected void LoadCrystalSamples()
{
ContentManager forLevel = this.CMProvider.GetForLevel(this.LevelManager.Name);
string path1 = Path.Combine("Sounds", this.LevelManager.SequenceSamplesPath ?? "");
foreach (TrileInstance index1 in Enumerable.Where <TrileInstance>((IEnumerable <TrileInstance>) this.crystals.Keys, (Func <TrileInstance, bool>)(x => x.ActorSettings.SequenceSampleName != null)))
{
Sequencer.CrystalState crystalState = this.crystals[index1];
InstanceActorSettings actorSettings = index1.ActorSettings;
try
{
crystalState.Sample = forLevel.Load <SoundEffect>(Path.Combine(path1, actorSettings.SequenceSampleName));
if (actorSettings.SequenceAlternateSampleName != null)
{
crystalState.AlternateSample = forLevel.Load <SoundEffect>(Path.Combine(path1, actorSettings.SequenceAlternateSampleName));
}
}
catch (Exception ex)
{
Logger.Log("Sequencer", LogSeverity.Warning, string.Concat(new object[4]
{
(object)"Could not find crystal sample : ",
(object)crystalState.Sample,
(object)" or ",
(object)crystalState.AlternateSample
}));
}
bool flag1 = actorSettings.Sequence[15];
bool flag2 = false;
for (int index2 = 0; index2 < 16; ++index2)
{
if (!flag1 && actorSettings.Sequence[index2])
{
crystalState.Alternate[index2] = flag2 && crystalState.AlternateSample != null;
flag2 = !flag2;
}
flag1 = actorSettings.Sequence[index2];
}
}
}
public override void Update(GameTime gameTime)
{
if (!this.Enabled || this.EngineState.Loading || (this.EngineState.Paused || this.EngineState.InMap))
{
return;
}
double num1 = FezMath.Frac((double)this.SoundManager.PlayPosition.Ticks / (double)this.measureLength.Ticks);
this.step = (int)Math.Floor(num1 * 16.0);
double num2 = FezMath.Frac(num1 * 16.0);
int index1 = (this.step + 1) % 16;
bool flag = false;
foreach (TrileInstance index2 in this.crystals.Keys)
{
if (index2.ActorSettings.Sequence != null)
{
Sequencer.CrystalState crystalState = this.crystals[index2];
bool enabled = index2.Enabled;
index2.Enabled = index2.ActorSettings.Sequence.Length > this.step && index2.ActorSettings.Sequence[this.step];
if (!enabled && index2.Enabled)
{
this.LevelManager.RestoreTrile(index2);
index2.Hidden = false;
index2.Enabled = true;
if (index2.InstanceId == -1)
{
this.LevelMaterializer.CullInstanceIn(index2);
}
if (crystalState.Sample != null)
{
Vector3 position = index2.Position + new Vector3(0.5f);
SoundEffectExtensions.EmitAt(crystalState.Alternate[this.step] ? crystalState.AlternateSample : crystalState.Sample, position);
}
flag = true;
}
else if (enabled && !index2.Enabled)
{
this.LevelMaterializer.UnregisterViewedInstance(index2);
this.LevelMaterializer.CullInstanceOut(index2, true);
this.LevelManager.ClearTrile(index2, true);
this.OnDisappear(index2);
flag = true;
}
else if (num2 > 0.449999988079071 && index2.Enabled && (index2.ActorSettings.Sequence.Length > index1 && !index2.ActorSettings.Sequence[index1]))
{
if ((int)Math.Round((num2 - 0.449999988079071) / 0.550000011920929 * 6.0) % 3 == 0)
{
if (!index2.Hidden)
{
index2.Hidden = true;
this.LevelMaterializer.UnregisterViewedInstance(index2);
this.LevelMaterializer.CullInstanceOut(index2, true);
flag = true;
}
}
else if (index2.Hidden)
{
index2.Hidden = false;
if (index2.InstanceId == -1)
{
this.LevelMaterializer.CullInstanceIn(index2);
flag = true;
}
}
}
}
}
if (!flag)
{
return;
}
this.LevelMaterializer.CommitBatchesIfNeeded();
}