Initial setup for testing AI performance, random fixes

PkmnLib.Dynamic/Models/Choices/SwitchChoice.cs

@@ -38,4 +38,27 @@ public class SwitchChoice : TurnChoice, ISwitchChoice
     {
         User.CollectScripts(scripts);
     }
+
+    /// <inheritdoc />
+    public override string ToString() =>
+        $"SwitchChoice: {User} -> {SwitchTo}";
+
+    protected bool Equals(SwitchChoice other) =>
+        other.User == User && other.SwitchTo == SwitchTo;
+
+    /// <inheritdoc />
+    public override bool Equals(object? obj)
+    {
+        if (obj is null)
+            return false;
+        if (ReferenceEquals(this, obj))
+            return true;
+        if (obj is not SwitchChoice other)
+            return false;
+        return Equals(other);
+    }
+
+    /// <inheritdoc />
+    public override int GetHashCode() =>
+        User?.GetHashCode() ?? 0 ^ SwitchTo?.GetHashCode() ?? 0;
 }