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Fix possible nullref in difficulty recommender

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This commit is contained in:
smoogipoo 2021-06-16 11:25:00 +09:00
parent b871ee4e71
commit 6be41e497a
1 changed files with 14 additions and 4 deletions
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16
osu.Game/Beatmaps/DifficultyRecommender.cs
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@ -101,10 +101,20 @@ namespace osu.Game.Beatmaps
/// Rulesets ordered descending by their respective recommended difficulties.
/// The currently selected ruleset will always be first.
/// </returns>
private IEnumerable<RulesetInfo> orderedRulesets =>
recommendedDifficultyMapping
.OrderByDescending(pair => pair.Value).Select(pair => pair.Key).Where(r => !r.Equals(ruleset.Value))
private IEnumerable<RulesetInfo> orderedRulesets
{
get
{
if (LoadState < LoadState.Ready || ruleset.Value == null)
return Enumerable.Empty<RulesetInfo>();
return recommendedDifficultyMapping
.OrderByDescending(pair => pair.Value)
.Select(pair => pair.Key)
.Where(r => !r.Equals(ruleset.Value))
.Prepend(ruleset.Value);
}
}
private void onlineStateChanged(ValueChangedEvent<APIState> state) => Schedule(() =>
{