Unstable 1.8.4.0

Barotrauma/BarotraumaShared/SharedSource/DisembarkPerks/DisembarkPerkPrefab.cs

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+using System.Collections.Immutable;
+using Barotrauma.PerkBehaviors;
+
+namespace Barotrauma
+{
+    internal sealed class DisembarkPerkPrefab : PrefabWithUintIdentifier
+    {
+        public static readonly PrefabCollection<DisembarkPerkPrefab> Prefabs = new PrefabCollection<DisembarkPerkPrefab>();
+
+        public LocalizedString Name { get; }
+        public LocalizedString Description { get; }
+        public Identifier SortCategory { get; }
+
+        /// <summary>
+        /// After the perks have been sorted by category and cost, they are sorted using this key.
+        /// Use if you want the perks to be arranged in specific order when their cost are the same.
+        /// </summary>
+        public int SortKey { get; }
+
+        /// <summary>
+        /// When set to an identifier of another perk, this perk cannot be selected unless the prerequisite perk is selected.
+        /// </summary>
+        public Identifier Prerequisite { get; }
+
+        /// <summary>
+        /// When this perk is selected, the perks in this set cannot be selected at the same time.
+        /// </summary>
+        public ImmutableHashSet<Identifier> MutuallyExclusivePerks { get; }
+
+        public int Cost { get; }
+
+        public ImmutableArray<PerkBase> PerkBehaviors { get; }
+
+        public DisembarkPerkPrefab(ContentXElement element, DisembarkPerkFile prefabFile) : base(prefabFile, element.GetAttributeIdentifier("identifier", ""))
+        {
+            Name = TextManager.Get($"disembarkperk.{Identifier}").Fallback(Identifier.ToString());
+            Description = TextManager.Get($"disembarkperkdescription.{Identifier}").Fallback("");
+            Cost = element.GetAttributeInt("cost", 0);
+            SortCategory = element.GetAttributeIdentifier("sortcategory", Identifier);
+            Prerequisite = element.GetAttributeIdentifier("prerequisite", Identifier.Empty);
+            MutuallyExclusivePerks = element.GetAttributeIdentifierImmutableHashSet("mutuallyexclusiveperks", ImmutableHashSet<Identifier>.Empty);
+            SortKey = element.GetAttributeInt("sortkey", 0);
+
+            var builder = ImmutableArray.CreateBuilder<PerkBase>();
+            foreach (var child in element.Elements())
+            {
+                if (PerkBase.TryLoadFromXml(child, this, out var perk))
+                {
+                    builder.Add(perk);
+                }
+            }
+
+            PerkBehaviors = builder.ToImmutable();
+        }
+
+        public override void Dispose() {  }
+    }
+}