keii.dev
A game framework written with osu! in mind.
Add `LifetimeChanged` event to `LifetimeEntry`
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osu.Framework/Graphics/Performance/LifetimeEntry.cs
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osu.Framework/Graphics/Performance/LifetimeEntry.cs
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}
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/// <summary>
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/// Invoked when <see cref="LifetimeStart"/> or <see cref="LifetimeEnd"/> is going to be changed.
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/// Invoked before <see cref="LifetimeStart"/> or <see cref="LifetimeEnd"/> changes.
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/// It is used because <see cref="LifetimeChanged"/> cannot be used to ensuring comparator stability.
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/// </summary>
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internal event Action<LifetimeEntry> RequestLifetimeUpdate;
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/// <summary>
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/// Invoked after <see cref="LifetimeStart"/> or <see cref="LifetimeEnd"/> changes.
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/// </summary>
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public event Action<LifetimeEntry> LifetimeChanged;
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/// <summary>
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/// Update <see cref="LifetimeStart"/> of this <see cref="LifetimeEntry"/>.
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lifetimeStart = start;
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lifetimeEnd = Math.Max(start, end); // Negative intervals are undesired.
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LifetimeChanged?.Invoke(this);
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}
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/// <summary>
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osu.Framework/Graphics/Performance/LifetimeEntryManager.cs
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osu.Framework/Graphics/Performance/LifetimeEntryManager.cs
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// Entries in the past/future sets need to be re-sorted to prevent the comparer from becoming unstable.
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// To prevent, e.g. CompositeDrawable alive children changing during enumeration, the entry's state must not be updated immediately.
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//
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// In order to achieve the above, the entry is first removed from the past/future set (resolving the comparer stability issues)
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// In order to achieve the above, the entry is first removed from the past/future set (resolving the comparator stability issues)
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// and then re-queued back onto the new entries list to be re-processed in the next Update().
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//
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// Note that this does not apply to entries that are in the current set, as they don't utilise a lifetime comparer.