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41 lines
1.5 KiB
C#
41 lines
1.5 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.IO;
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using System.Text;
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using osu.Game.Beatmaps.Formats;
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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 partial class BeatmapEditorChangeHandler : EditorChangeHandler
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{
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private readonly LegacyEditorBeatmapPatcher patcher;
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private readonly EditorBeatmap editorBeatmap;
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/// <summary>
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/// Creates a new <see cref="EditorChangeHandler"/>.
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/// </summary>
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/// <param name="editorBeatmap">The <see cref="EditorBeatmap"/> to track the <see cref="HitObject"/>s of.</param>
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public BeatmapEditorChangeHandler(EditorBeatmap editorBeatmap)
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{
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this.editorBeatmap = editorBeatmap;
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editorBeatmap.TransactionBegan += BeginChange;
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editorBeatmap.TransactionEnded += EndChange;
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editorBeatmap.SaveStateTriggered += SaveState;
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patcher = new LegacyEditorBeatmapPatcher(editorBeatmap);
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}
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protected override void WriteCurrentStateToStream(MemoryStream stream)
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{
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using (var sw = new StreamWriter(stream, Encoding.UTF8, 1024, true))
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new LegacyBeatmapEncoder(editorBeatmap, editorBeatmap.BeatmapSkin).Encode(sw);
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}
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protected override void ApplyStateChange(byte[] previousState, byte[] newState) =>
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patcher.Patch(previousState, newState);
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}
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}
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