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using JetBrains.Annotations;
using UnityEngine;
using UnityEngine.Timeline;
using UnityEngine.Playables;
namespace UnityEditor.Timeline
{
[UsedImplicitly]
[CustomTimelineEditor(typeof(ActivationTrack))]
class ActivationTrackEditor : TrackEditor
{
static readonly string ClipText = LocalizationDatabase.GetLocalizedString("Active");
static readonly string k_ErrorParentString = LocalizationDatabase.GetLocalizedString("The bound GameObject is a parent of the PlayableDirector.");
static readonly string k_ErrorString = LocalizationDatabase.GetLocalizedString("The bound GameObject contains the PlayableDirector.");
public override TrackDrawOptions GetTrackOptions(TrackAsset track, Object binding)
{
var options = base.GetTrackOptions(track, binding);
options.errorText = GetErrorText(track, binding);
return options;
}
string GetErrorText(TrackAsset track, Object binding)
{
var gameObject = binding as GameObject;
var currentDirector = TimelineEditor.inspectedDirector;
if (gameObject != null && currentDirector != null)
{
var director = gameObject.GetComponent<PlayableDirector>();
if (currentDirector == director)
{
return k_ErrorString;
}
if (currentDirector.gameObject.transform.IsChildOf(gameObject.transform))
{
return k_ErrorParentString;
}
}
return base.GetErrorText(track, binding, TrackBindingErrors.PrefabBound);
}
public override void OnCreate(TrackAsset track, TrackAsset copiedFrom)
{
// Add a default clip to the newly created track
if (copiedFrom == null)
{
var clip = track.CreateClip(0);
clip.displayName = ClipText;
clip.duration = System.Math.Max(clip.duration, track.timelineAsset.duration * 0.5f);
}
}
}
}
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