osu/osu.Game.Rulesets.Catch/Objects/JuiceStream.cs

158 lines
5.5 KiB
C#

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