diff --git a/osu.Game/Utils/ModUtils.cs b/osu.Game/Utils/ModUtils.cs index 34bc0faca4..a9271db1b5 100644 --- a/osu.Game/Utils/ModUtils.cs +++ b/osu.Game/Utils/ModUtils.cs @@ -4,7 +4,6 @@ using System; using System.Collections.Generic; using System.Linq; -using osu.Framework.Extensions.TypeExtensions; using osu.Game.Rulesets.Mods; #nullable enable @@ -29,7 +28,7 @@ public static bool CheckCompatibleSetAndAllowed(IEnumerable combination, IE { // Prevent multiple-enumeration. var combinationList = combination as ICollection ?? combination.ToArray(); - return CheckCompatibleSet(combinationList) && CheckAllowed(combinationList, allowedTypes); + return CheckCompatibleSet(combinationList, out _) && CheckAllowed(combinationList, allowedTypes); } /// @@ -38,32 +37,31 @@ public static bool CheckCompatibleSetAndAllowed(IEnumerable combination, IE /// The combination to check. /// Whether all s in the combination are compatible with each-other. public static bool CheckCompatibleSet(IEnumerable combination) + => CheckCompatibleSet(combination, out _); + + /// + /// Checks that all s in a combination are compatible with each-other. + /// + /// The combination to check. + /// Any invalid mods in the set. + /// Whether all s in the combination are compatible with each-other. + public static bool CheckCompatibleSet(IEnumerable combination, out List? invalidMods) { - var incompatibleTypes = new HashSet(); - var incomingTypes = new HashSet(); + invalidMods = null; - foreach (var mod in combination.SelectMany(FlattenMod)) + foreach (var mod in combination) { - // Add the new mod incompatibilities, checking whether any match the existing mod types. - foreach (var t in mod.IncompatibleMods) + foreach (var type in mod.IncompatibleMods) { - if (incomingTypes.Contains(t)) - return false; - - incompatibleTypes.Add(t); - } - - // Add the new mod types, checking whether any match the incompatible types. - foreach (var t in mod.GetType().EnumerateBaseTypes()) - { - if (incompatibleTypes.Contains(t)) - return false; - - incomingTypes.Add(t); + foreach (var invalid in combination.Where(m => type.IsInstanceOfType(m))) + { + invalidMods ??= new List(); + invalidMods.Add(invalid); + } } } - return true; + return invalidMods == null; } ///