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124 lines
4.5 KiB
C#
124 lines
4.5 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using System.Collections.Generic;
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using osu.Framework.Bindables;
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using osu.Game.Beatmaps;
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using osu.Game.Beatmaps.ControlPoints;
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using osu.Game.Beatmaps.Timing;
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using osu.Game.Rulesets.Objects;
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namespace osu.Game.Screens.Edit
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{
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public class EditorBeatmap<T> : IEditorBeatmap<T>
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where T : HitObject
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{
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/// <summary>
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/// Invoked when a <see cref="HitObject"/> is added to this <see cref="EditorBeatmap{T}"/>.
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/// </summary>
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public event Action<HitObject> HitObjectAdded;
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/// <summary>
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/// Invoked when a <see cref="HitObject"/> is removed from this <see cref="EditorBeatmap{T}"/>.
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/// </summary>
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public event Action<HitObject> HitObjectRemoved;
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/// <summary>
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/// Invoked when the start time of a <see cref="HitObject"/> in this <see cref="EditorBeatmap{T}"/> was changed.
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/// </summary>
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public event Action<HitObject> StartTimeChanged;
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private readonly Dictionary<T, Bindable<double>> startTimeBindables = new Dictionary<T, Bindable<double>>();
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private readonly Beatmap<T> beatmap;
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public EditorBeatmap(Beatmap<T> beatmap)
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{
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this.beatmap = beatmap;
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foreach (var obj in HitObjects)
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trackStartTime(obj);
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}
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public BeatmapInfo BeatmapInfo
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{
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get => beatmap.BeatmapInfo;
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set => beatmap.BeatmapInfo = value;
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}
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public BeatmapMetadata Metadata => beatmap.Metadata;
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public ControlPointInfo ControlPointInfo => beatmap.ControlPointInfo;
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public List<BreakPeriod> Breaks => beatmap.Breaks;
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public double TotalBreakTime => beatmap.TotalBreakTime;
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public IReadOnlyList<T> HitObjects => beatmap.HitObjects;
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IReadOnlyList<HitObject> IBeatmap.HitObjects => beatmap.HitObjects;
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public IEnumerable<BeatmapStatistic> GetStatistics() => beatmap.GetStatistics();
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public IBeatmap Clone() => (EditorBeatmap<T>)MemberwiseClone();
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/// <summary>
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/// Adds a <see cref="HitObject"/> to this <see cref="EditorBeatmap{T}"/>.
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/// </summary>
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/// <param name="hitObject">The <see cref="HitObject"/> to add.</param>
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public void Add(T hitObject)
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{
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trackStartTime(hitObject);
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// Preserve existing sorting order in the beatmap
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var insertionIndex = beatmap.HitObjects.FindLastIndex(h => h.StartTime <= hitObject.StartTime);
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beatmap.HitObjects.Insert(insertionIndex + 1, hitObject);
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HitObjectAdded?.Invoke(hitObject);
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}
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/// <summary>
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/// Removes a <see cref="HitObject"/> from this <see cref="EditorBeatmap{T}"/>.
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/// </summary>
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/// <param name="hitObject">The <see cref="HitObject"/> to add.</param>
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public void Remove(T hitObject)
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{
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if (beatmap.HitObjects.Remove(hitObject))
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{
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var bindable = startTimeBindables[hitObject];
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bindable.UnbindAll();
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startTimeBindables.Remove(hitObject);
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HitObjectRemoved?.Invoke(hitObject);
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}
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}
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private void trackStartTime(T hitObject)
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{
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startTimeBindables[hitObject] = hitObject.StartTimeBindable.GetBoundCopy();
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startTimeBindables[hitObject].ValueChanged += _ =>
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{
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// For now we'll remove and re-add the hitobject. This is not optimal and can be improved if required.
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beatmap.HitObjects.Remove(hitObject);
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var insertionIndex = beatmap.HitObjects.FindLastIndex(h => h.StartTime <= hitObject.StartTime);
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beatmap.HitObjects.Insert(insertionIndex + 1, hitObject);
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StartTimeChanged?.Invoke(hitObject);
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};
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}
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/// <summary>
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/// Adds a <see cref="HitObject"/> to this <see cref="EditorBeatmap{T}"/>.
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/// </summary>
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/// <param name="hitObject">The <see cref="HitObject"/> to add.</param>
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public void Add(HitObject hitObject) => Add((T)hitObject);
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/// <summary>
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/// Removes a <see cref="HitObject"/> from this <see cref="EditorBeatmap{T}"/>.
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/// </summary>
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/// <param name="hitObject">The <see cref="HitObject"/> to add.</param>
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public void Remove(HitObject hitObject) => Remove((T)hitObject);
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}
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}
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