Salvage expeditions (#12745)

Content.Shared/Salvage/Expeditions/Modifiers/SalvageDungeonMod.cs

@@ -0,0 +1,29 @@
+using Content.Shared.Procedural;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype.List;
+
+namespace Content.Shared.Salvage.Expeditions.Modifiers;
+
+[Prototype("salvageDungeonMod")]
+public sealed class SalvageDungeonMod : IPrototype, ISalvageMod
+{
+    [IdDataField] public string ID { get; } = default!;
+
+    [DataField("desc")] public string Description { get; } = string.Empty;
+
+    [DataField("proto", customTypeSerializer:typeof(PrototypeIdSerializer<DungeonConfigPrototype>))]
+    public string Proto = string.Empty;
+
+    /// <summary>
+    /// Cost for difficulty modifiers.
+    /// </summary>
+    [DataField("cost")]
+    public float Cost { get; } = 0f;
+
+    /// <summary>
+    /// Biomes this dungeon can occur in.
+    /// </summary>
+    [DataField("biomeMods", customTypeSerializer:typeof(PrototypeIdListSerializer<SalvageBiomeMod>))]
+    public List<string>? BiomeMods;
+}