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Ensure duplicate mods cannot be defined

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This commit is contained in:
Dean Herbert
2021-06-22 17:41:20 +09:00
parent 6c3d2315d0
commit c4fde635c6
2 changed files with 28 additions and 3 deletions
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23
osu.Game/Utils/ModUtils.cs
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@ -51,14 +51,31 @@ namespace osu.Game.Utils
/// <returns>Whether all <see cref="Mod"/>s in the combination are compatible with each-other.</returns>
public static bool CheckCompatibleSet(IEnumerable<Mod> combination, [NotNullWhen(false)] out List<Mod>? invalidMods)
{
combination = FlattenMods(combination).ToArray();
var mods = FlattenMods(combination).ToArray();
invalidMods = null;
foreach (var mod in combination)
// ensure there are no duplicate mod definitions.
for (int i = 0; i < mods.Length; i++)
{
var candidate = mods[i];
for (int j = i + 1; j < mods.Length; j++)
{
var m = mods[j];
if (candidate.Equals(m))
{
invalidMods ??= new List<Mod>();
invalidMods.Add(m);
}
}
}
foreach (var mod in mods)
{
foreach (var type in mod.IncompatibleMods)
{
foreach (var invalid in combination.Where(m => type.IsInstanceOfType(m)))
foreach (var invalid in mods.Where(m => type.IsInstanceOfType(m)))
{
if (invalid == mod)
continue;