mirror of https://github.com/ppy/osu
158 lines
5.5 KiB
C#
158 lines
5.5 KiB
C#
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using osu.Game.Audio;
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using osu.Game.Beatmaps;
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using osu.Game.Beatmaps.ControlPoints;
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using osu.Game.Rulesets.Catch.UI;
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using osu.Game.Rulesets.Objects;
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using osu.Game.Rulesets.Objects.Types;
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using OpenTK;
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namespace osu.Game.Rulesets.Catch.Objects
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{
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public class JuiceStream : CatchHitObject, IHasCurve
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{
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/// <summary>
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/// Positional distance that results in a duration of one second, before any speed adjustments.
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/// </summary>
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private const float base_scoring_distance = 100;
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public int RepeatCount { get; set; }
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public double Velocity;
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public double TickDistance;
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protected override void ApplyDefaultsToSelf(ControlPointInfo controlPointInfo, BeatmapDifficulty difficulty)
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{
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base.ApplyDefaultsToSelf(controlPointInfo, difficulty);
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TimingControlPoint timingPoint = controlPointInfo.TimingPointAt(StartTime);
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DifficultyControlPoint difficultyPoint = controlPointInfo.DifficultyPointAt(StartTime);
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double scoringDistance = base_scoring_distance * difficulty.SliderMultiplier * difficultyPoint.SpeedMultiplier;
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Velocity = scoringDistance / timingPoint.BeatLength;
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TickDistance = scoringDistance / difficulty.SliderTickRate;
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}
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protected override void CreateNestedHitObjects()
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{
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base.CreateNestedHitObjects();
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createTicks();
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}
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private void createTicks()
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{
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if (TickDistance == 0)
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return;
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var length = Curve.Distance;
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var tickDistance = Math.Min(TickDistance, length);
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var spanDuration = length / Velocity;
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var minDistanceFromEnd = Velocity * 0.01;
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AddNested(new Fruit
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{
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Samples = Samples,
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StartTime = StartTime,
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X = X
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});
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double lastDropletTime = StartTime;
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for (int span = 0; span < this.SpanCount(); span++)
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{
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var spanStartTime = StartTime + span * spanDuration;
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var reversed = span % 2 == 1;
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for (double d = 0; d <= length; d += tickDistance)
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{
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var timeProgress = d / length;
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var distanceProgress = reversed ? 1 - timeProgress : timeProgress;
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double time = spanStartTime + timeProgress * spanDuration;
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double tinyTickInterval = time - lastDropletTime;
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while (tinyTickInterval > 100)
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tinyTickInterval /= 2;
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for (double t = lastDropletTime + tinyTickInterval; t < time; t += tinyTickInterval)
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{
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double progress = reversed ? 1 - (t - spanStartTime) / spanDuration : (t - spanStartTime) / spanDuration;
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AddNested(new TinyDroplet
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{
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StartTime = t,
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X = X + Curve.PositionAt(progress).X / CatchPlayfield.BASE_WIDTH,
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Samples = new List<SampleInfo>(Samples.Select(s => new SampleInfo
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{
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Bank = s.Bank,
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Name = @"slidertick",
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Volume = s.Volume
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}))
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});
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}
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if (d > minDistanceFromEnd && Math.Abs(d - length) > minDistanceFromEnd)
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{
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AddNested(new Droplet
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{
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StartTime = time,
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X = X + Curve.PositionAt(distanceProgress).X / CatchPlayfield.BASE_WIDTH,
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Samples = new List<SampleInfo>(Samples.Select(s => new SampleInfo
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{
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Bank = s.Bank,
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Name = @"slidertick",
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Volume = s.Volume
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}))
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});
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}
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lastDropletTime = time;
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}
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AddNested(new Fruit
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{
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Samples = Samples,
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StartTime = spanStartTime + spanDuration,
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X = X + Curve.PositionAt(reversed ? 0 : 1).X / CatchPlayfield.BASE_WIDTH
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});
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}
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}
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public double EndTime => StartTime + this.SpanCount() * Curve.Distance / Velocity;
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public float EndX => X + this.CurvePositionAt(1).X / CatchPlayfield.BASE_WIDTH;
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public double Duration => EndTime - StartTime;
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public double Distance
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{
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get { return Curve.Distance; }
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set { Curve.Distance = value; }
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}
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public SliderCurve Curve { get; } = new SliderCurve();
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public List<Vector2> ControlPoints
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{
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get { return Curve.ControlPoints; }
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set { Curve.ControlPoints = value; }
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}
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public List<List<SampleInfo>> RepeatSamples { get; set; } = new List<List<SampleInfo>>();
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public CurveType CurveType
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{
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get { return Curve.CurveType; }
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set { Curve.CurveType = value; }
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}
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}
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}
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