First commit

Packages/com.jovian.encounter-system/Runtime/IEncounterKind.cs

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+using System;
+
+namespace Jovian.EncounterSystem {
+    /// <summary>Polymorphic payload on an <see cref="IEncounter"/>. Add a new kind by implementing
+    /// this interface; the SubclassSelector drawer surfaces it automatically.</summary>
+    public interface IEncounterKind { }
+
+    [Serializable]
+    public class QuestKind : IEncounterKind {
+        public EncounterLink nextEncounter;
+    }
+}