107 lines
2.6 KiB
C#
107 lines
2.6 KiB
C#
using Sandbox;
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using Sandbox.Audio;
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using System.Threading;
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using System.Threading.Tasks;
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namespace Sandbox;
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public sealed class DSPReverb : Component, Component.ITriggerListener
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{
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[Property] public MixerHandle TargetMixer { get; set; }
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[Property] public DspPresetHandle Preset { get; set; }
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[Property] [Range( 0f, 10f, 0.1f )] public float FadeDuration { get; set; } = 1f;
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[Property] public BBox Bounds { get; set; } = new BBox( Vector3.One * -100f, Vector3.One * 100f );
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private DspProcessor _processor;
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private BoxCollider _triggerCollider;
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private CancellationTokenSource _cts;
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protected override void OnAwake()
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{
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base.OnAwake();
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_triggerCollider = Components.Create<BoxCollider>();
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_triggerCollider.IsTrigger = true;
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_triggerCollider.Static = true;
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_triggerCollider.Scale = Bounds.Size;
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_triggerCollider.Center = Bounds.Center;
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}
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public void OnTriggerEnter( Collider other )
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{
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if ( other.Components.TryGet<Dedugan>( out Dedugan dedugan ) )
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{
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if ( dedugan.Connection == Dedugan.Local.Connection )
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{
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_cts?.Cancel();
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_cts = new CancellationTokenSource();
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if ( _processor != null ) { TargetMixer.Get().RemoveProcessor( _processor ); }
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_processor = new DspProcessor( Preset.Name );
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_processor.Mix = 0f;
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TargetMixer.Get().AddProcessor( _processor );
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_processor.Mix = 1f;
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// _ = UpdateMixAsync(1f);
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}
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}
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}
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private async Task UpdateMixAsync( float targetMix )
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{
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float startMix = _processor.Mix;
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float elapsed = FadeDuration *
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((targetMix == 0f || startMix == 0f) ? 0f : Math.Min( startMix / targetMix, 1f ));
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float lastTime = Time.Now;
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while ( elapsed < FadeDuration && !_cts.IsCancellationRequested )
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{
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await Task.FixedUpdate();
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float delta = Time.Now - lastTime;
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elapsed += delta;
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float t = Math.Clamp( elapsed / FadeDuration, 0f, 1f );
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_processor.Mix = Math.Clamp( startMix + (targetMix - startMix) * t, 0f, 1f );
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lastTime = Time.Now;
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}
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if ( !_cts.IsCancellationRequested )
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{
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_processor.Mix = targetMix;
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}
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}
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public void OnTriggerExit( Collider other )
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{
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if ( other.Components.TryGet<Dedugan>( out Dedugan dedugan ) )
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{
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if ( dedugan.Connection == Dedugan.Local.Connection )
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{
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_cts?.Cancel();
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_cts = new CancellationTokenSource();
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_processor.Mix = 0f;
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}
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}
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// _ = UpdateMixAsync(0f).ContinueWith( (_) =>
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// {
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// if (_processor == null) return;
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//
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// TargetMixer.Get().RemoveProcessor(_processor);
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// _processor = null;
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// } );
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}
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protected override void DrawGizmos()
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{
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base.DrawGizmos();
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Gizmo.Draw.Color = Color.Green;
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Gizmo.Draw.LineBBox( Bounds );
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}
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}
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