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Code Issues Releases Wiki Activity

Fix flip operations sometimes not preserving selection

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Closes https://github.com/ppy/osu/issues/30250.
This commit is contained in:
Bartłomiej Dach 2024-10-14 14:48:09 +02:00
parent 98141430b0
commit 59655a1830
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1 changed files with 12 additions and 6 deletions
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18
osu.Game.Rulesets.Mania/Edit/ManiaSelectionHandler.cs
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@ -54,9 +54,8 @@ namespace osu.Game.Rulesets.Mania.Edit
int firstColumn = flipOverOrigin ? 0 : selectedObjects.Min(ho => ho.Column);
int lastColumn = flipOverOrigin ? (int)EditorBeatmap.BeatmapInfo.Difficulty.CircleSize - 1 : selectedObjects.Max(ho => ho.Column);
EditorBeatmap.PerformOnSelection(hitObject =>
performOnSelection(maniaObject =>
{
var maniaObject = (ManiaHitObject)hitObject;
maniaPlayfield.Remove(maniaObject);
maniaObject.Column = firstColumn + (lastColumn - maniaObject.Column);
maniaPlayfield.Add(maniaObject);
@ -71,7 +70,7 @@ namespace osu.Game.Rulesets.Mania.Edit
double selectionStartTime = selectedObjects.Min(ho => ho.StartTime);
double selectionEndTime = selectedObjects.Max(ho => ho.GetEndTime());
EditorBeatmap.PerformOnSelection(hitObject =>
performOnSelection(hitObject =>
{
hitObject.StartTime = selectionStartTime + (selectionEndTime - hitObject.GetEndTime());
});
@ -117,14 +116,21 @@ namespace osu.Game.Rulesets.Mania.Edit
columnDelta = Math.Clamp(columnDelta, -minColumn, maniaPlayfield.TotalColumns - 1 - maxColumn);
EditorBeatmap.PerformOnSelection(h =>
performOnSelection(h =>
{
maniaPlayfield.Remove(h);
((ManiaHitObject)h).Column += columnDelta;
h.Column += columnDelta;
maniaPlayfield.Add(h);
});
}
// `HitObjectUsageEventBuffer`'s usage transferal flows and the playfield's `SetKeepAlive()` functionality do not combine well with this operation's usage pattern,
private void performOnSelection(Action<ManiaHitObject> action)
{
var selectedObjects = EditorBeatmap.SelectedHitObjects.OfType<ManiaHitObject>().ToArray();
EditorBeatmap.PerformOnSelection(h => action.Invoke((ManiaHitObject)h));
// `HitObjectUsageEventBuffer`'s usage transferal flows and the playfield's `SetKeepAlive()` functionality do not combine well with mania's usage patterns,
// leading to selections being sometimes partially dropped if some of the objects being moved are off screen
// (check blame for detailed explanation).
// thus, ensure that selection is preserved manually.