diff --git a/osu.Game.Tests/Visual/Gameplay/TestSceneLeadIn.cs b/osu.Game.Tests/Visual/Gameplay/TestSceneLeadIn.cs index 563d6be0da..dccde366c2 100644 --- a/osu.Game.Tests/Visual/Gameplay/TestSceneLeadIn.cs +++ b/osu.Game.Tests/Visual/Gameplay/TestSceneLeadIn.cs @@ -46,11 +46,12 @@ namespace osu.Game.Tests.Visual.Gameplay [TestCase(0, 0)] [TestCase(-1000, -1000)] [TestCase(-10000, -10000)] - public void TestStoryboardProducesCorrectStartTime(double firstStoryboardEvent, double expectedStartTime) + public void TestStoryboardProducesCorrectStartTimeSimpleAlpha(double firstStoryboardEvent, double expectedStartTime) { var storyboard = new Storyboard(); var sprite = new StoryboardSprite("unknown", Anchor.TopLeft, Vector2.Zero); + sprite.TimelineGroup.Alpha.Add(Easing.None, firstStoryboardEvent, firstStoryboardEvent + 500, 0, 1); storyboard.GetLayer("Background").Add(sprite); @@ -64,6 +65,43 @@ namespace osu.Game.Tests.Visual.Gameplay }); } + [TestCase(1000, 0, false)] + [TestCase(0, 0, false)] + [TestCase(-1000, -1000, false)] + [TestCase(-10000, -10000, false)] + [TestCase(1000, 0, true)] + [TestCase(0, 0, true)] + [TestCase(-1000, -1000, true)] + [TestCase(-10000, -10000, true)] + public void TestStoryboardProducesCorrectStartTimeFadeInAfterOtherEvents(double firstStoryboardEvent, double expectedStartTime, bool addEventToLoop) + { + var storyboard = new Storyboard(); + + var sprite = new StoryboardSprite("unknown", Anchor.TopLeft, Vector2.Zero); + + // these should be ignored as we have an alpha visibility blocker proceeding this command. + sprite.TimelineGroup.Scale.Add(Easing.None, -20000, -18000, 0, 1); + var loopGroup = sprite.AddLoop(-20000, 50); + loopGroup.Scale.Add(Easing.None, -20000, -18000, 0, 1); + + var target = addEventToLoop ? loopGroup : sprite.TimelineGroup; + target.Alpha.Add(Easing.None, firstStoryboardEvent, firstStoryboardEvent + 500, 0, 1); + + // these should be ignored due to being in the future. + sprite.TimelineGroup.Alpha.Add(Easing.None, 18000, 20000, 0, 1); + loopGroup.Alpha.Add(Easing.None, 18000, 20000, 0, 1); + + storyboard.GetLayer("Background").Add(sprite); + + loadPlayerWithBeatmap(new TestBeatmap(new OsuRuleset().RulesetInfo), storyboard); + + AddAssert($"first frame is {expectedStartTime}", () => + { + Debug.Assert(player.FirstFrameClockTime != null); + return Precision.AlmostEquals(player.FirstFrameClockTime.Value, expectedStartTime, lenience_ms); + }); + } + private void loadPlayerWithBeatmap(IBeatmap beatmap, Storyboard storyboard = null) { AddStep("create player", () => diff --git a/osu.Game/Storyboards/CommandTimelineGroup.cs b/osu.Game/Storyboards/CommandTimelineGroup.cs index 6ce3b617e9..c478b91c22 100644 --- a/osu.Game/Storyboards/CommandTimelineGroup.cs +++ b/osu.Game/Storyboards/CommandTimelineGroup.cs @@ -45,11 +45,30 @@ namespace osu.Game.Storyboards }; } + /// + /// Returns the earliest visible time. Will be null unless this group's first command has a start value of zero. + /// + public double? EarliestDisplayedTime + { + get + { + var first = Alpha.Commands.FirstOrDefault(); + + return first?.StartValue == 0 ? first.StartTime : (double?)null; + } + } + [JsonIgnore] public double CommandsStartTime { get { + // if the first alpha command starts at zero it should be given priority over anything else. + // this is due to it creating a state where the target is not present before that time, causing any other events to not be visible. + var earliestDisplay = EarliestDisplayedTime; + if (earliestDisplay != null) + return earliestDisplay.Value; + double min = double.MaxValue; for (int i = 0; i < timelines.Length; i++) diff --git a/osu.Game/Storyboards/StoryboardSprite.cs b/osu.Game/Storyboards/StoryboardSprite.cs index f411ad04f3..fdaa59d7d9 100644 --- a/osu.Game/Storyboards/StoryboardSprite.cs +++ b/osu.Game/Storyboards/StoryboardSprite.cs @@ -24,13 +24,46 @@ namespace osu.Game.Storyboards public readonly CommandTimelineGroup TimelineGroup = new CommandTimelineGroup(); - public double StartTime => Math.Min( - TimelineGroup.HasCommands ? TimelineGroup.CommandsStartTime : double.MaxValue, - loops.Any(l => l.HasCommands) ? loops.Where(l => l.HasCommands).Min(l => l.StartTime) : double.MaxValue); + public double StartTime + { + get + { + // check for presence affecting commands as an initial pass. + double earliestStartTime = TimelineGroup.EarliestDisplayedTime ?? double.MaxValue; - public double EndTime => Math.Max( - TimelineGroup.HasCommands ? TimelineGroup.CommandsEndTime : double.MinValue, - loops.Any(l => l.HasCommands) ? loops.Where(l => l.HasCommands).Max(l => l.EndTime) : double.MinValue); + foreach (var l in loops) + { + if (!(l.EarliestDisplayedTime is double lEarliest)) + continue; + + earliestStartTime = Math.Min(earliestStartTime, lEarliest); + } + + if (earliestStartTime < double.MaxValue) + return earliestStartTime; + + // if an alpha-affecting command was not found, use the earliest of any command. + earliestStartTime = TimelineGroup.StartTime; + + foreach (var l in loops) + earliestStartTime = Math.Min(earliestStartTime, l.StartTime); + + return earliestStartTime; + } + } + + public double EndTime + { + get + { + double latestEndTime = TimelineGroup.EndTime; + + foreach (var l in loops) + latestEndTime = Math.Max(latestEndTime, l.EndTime); + + return latestEndTime; + } + } public bool HasCommands => TimelineGroup.HasCommands || loops.Any(l => l.HasCommands);