diff --git a/osu.Game/Overlays/SkinEditor/SkinEditorChangeHandler.cs b/osu.Game/Overlays/SkinEditor/SkinEditorChangeHandler.cs index d1a1850796..151557c9e1 100644 --- a/osu.Game/Overlays/SkinEditor/SkinEditorChangeHandler.cs +++ b/osu.Game/Overlays/SkinEditor/SkinEditorChangeHandler.cs @@ -1,6 +1,7 @@ // Copyright (c) ppy Pty Ltd . Licensed under the MIT Licence. // See the LICENCE file in the repository root for full licence text. +using System; using System.Collections.Generic; using System.IO; using System.Linq; @@ -56,20 +57,64 @@ namespace osu.Game.Overlays.SkinEditor if (deserializedContent == null) return; - SerialisedDrawableInfo[] skinnableInfo = deserializedContent.ToArray(); - Drawable[] targetComponents = firstTarget.Components.OfType().ToArray(); + SerialisedDrawableInfo[] skinnableInfos = deserializedContent.ToArray(); + ISerialisableDrawable[] targetComponents = firstTarget.Components.ToArray(); - if (!skinnableInfo.Select(s => s.Type).SequenceEqual(targetComponents.Select(d => d.GetType()))) + // Store indexes based on type for later lookup + + var skinnableInfoIndexes = new Dictionary>(); + var targetComponentsIndexes = new Dictionary>(); + + for (int i = 0; i < skinnableInfos.Length; i++) { - // Perform a naive full reload for now. - firstTarget.Reload(skinnableInfo); + Type lookup = skinnableInfos[i].Type; + + if (!skinnableInfoIndexes.TryGetValue(lookup, out List? infoIndexes)) + skinnableInfoIndexes.Add(lookup, infoIndexes = new List()); + + infoIndexes.Add(i); } - else - { - int i = 0; - foreach (var drawable in targetComponents) - drawable.ApplySerialisedInfo(skinnableInfo[i++]); + for (int i = 0; i < targetComponents.Length; i++) + { + Type lookup = targetComponents[i].GetType(); + + if (!targetComponentsIndexes.TryGetValue(lookup, out List? componentIndexes)) + targetComponentsIndexes.Add(lookup, componentIndexes = new List()); + + componentIndexes.Add(i); + } + + foreach ((Type lookup, List infoIndexes) in skinnableInfoIndexes) + { + if (!targetComponentsIndexes.TryGetValue(lookup, out List? componentIndexes)) + componentIndexes = new List(0); + + int j = 0; + + for (int i = 0; i < infoIndexes.Count; i++) + { + if (i >= componentIndexes.Count) + // Add new component + firstTarget.Add((ISerialisableDrawable)skinnableInfos[infoIndexes[i]].CreateInstance()); + else + // Modify existing component + ((Drawable)targetComponents[componentIndexes[j++]]).ApplySerialisedInfo(skinnableInfos[infoIndexes[i]]); + } + + // Remove extra components + for (; j < componentIndexes.Count; j++) + firstTarget.Remove(targetComponents[componentIndexes[j]], false); + } + + foreach ((Type lookup, List componentIndexes) in targetComponentsIndexes) + { + if (skinnableInfoIndexes.ContainsKey(lookup)) + continue; + + // Remove extra components that weren't removed above + for (int i = 0; i < componentIndexes.Count; i++) + firstTarget.Remove(targetComponents[componentIndexes[i]], false); } } }