61 lines
2.1 KiB
C#
61 lines
2.1 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using UnityEngine.Playables;
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using Object = UnityEngine.Object;
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namespace UnityEditor.Timeline
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{
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readonly struct PreviewedBindings<T> where T : Object
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{
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readonly IEnumerable<T> m_UniqueBindings;
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readonly IReadOnlyDictionary<Object, HashSet<T>> m_BindingsPerObject;
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PreviewedBindings(IEnumerable<T> uniqueBindings, IReadOnlyDictionary<Object, HashSet<T>> bindingsPerObject)
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{
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m_UniqueBindings = uniqueBindings;
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m_BindingsPerObject = bindingsPerObject;
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}
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public IEnumerable<T> GetUniqueBindings() => m_UniqueBindings ?? Enumerable.Empty<T>();
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public IEnumerable<T> GetBindingsForObject(Object track)
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{
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if (m_BindingsPerObject != null && m_BindingsPerObject.TryGetValue(track, out HashSet<T> bindings))
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return bindings;
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return Enumerable.Empty<T>();
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}
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public static PreviewedBindings<T> GetPreviewedBindings(IEnumerable<PlayableDirector> directors)
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{
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var uniqueBindings = new HashSet<T>();
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var bindingsPerTrack = new Dictionary<Object, HashSet<T>>();
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foreach (PlayableDirector director in directors)
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{
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if (director.playableAsset == null) continue;
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foreach (PlayableBinding output in director.playableAsset.outputs)
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{
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var binding = director.GetGenericBinding(output.sourceObject) as T;
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Add(output.sourceObject, binding, uniqueBindings, bindingsPerTrack);
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}
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}
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return new PreviewedBindings<T>(uniqueBindings, bindingsPerTrack);
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}
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static void Add(Object obj, T binding, HashSet<T> bindings, Dictionary<Object, HashSet<T>> bindingsPerObject)
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{
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if (binding == null)
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return;
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bindings.Add(binding);
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if (bindingsPerObject.TryGetValue(obj, out HashSet<T> objectBindings))
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objectBindings.Add(binding);
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else
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bindingsPerObject.Add(obj, new HashSet<T> { binding });
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}
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}
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}
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