Complete phase 47 romance pack on generic orientation and affinity hooks.

Vanilla catalogs stay without crushes; a content pack ships the overlay so later mods can reuse it.

src/HSchool.Content/PeopleDefs.cs

@@ -210,6 +210,83 @@ public sealed class TraitDef : Def
 
     /// <summary>Pull toward topics carrying these tags when this person picks the subject.</summary>
     public IReadOnlyList<TopicTagWeight> TalkTagWeights { get; init; } = [];
+
+    /// <summary>
+    /// Added to the catalog's sympathy opinion threshold. Negative — crush-prone; a pack without
+    /// affinity rules ignores the field.
+    /// </summary>
+    public int AffinityThresholdOffset { get; init; }
+
+    /// <summary>
+    /// Added to the pair-break threshold. Positive — the pair dissolves while opinion is still
+    /// higher (jealous). Ignored without affinity rules.
+    /// </summary>
+    public int AffinityBreakOffset { get; init; }
+}
+
+/// <summary>
+/// Who this person is drawn to. Present only when a pack ships orientations; vanilla catalogs
+/// have none, and the generator then writes no orientation field.
+/// </summary>
+public sealed class OrientationDef : Def
+{
+    public int Weight { get; init; } = 1;
+
+    /// <summary>Attracted to people of the same gender.</summary>
+    public bool SameGender { get; init; }
+
+    /// <summary>Attracted to people of the opposite gender.</summary>
+    public bool OppositeGender { get; init; }
+}
+
+/// <summary>
+/// One directed role pairing the affinity overlay may use. Empty <see cref="AffinityRulesDef.RolePairs"/>
+/// means the overlay never fires, even if orientations exist.
+/// </summary>
+public sealed class AffinityRolePair
+{
+    /// <summary><see cref="PersonRoles"/> id of the person who holds the feeling.</summary>
+    public required string From { get; init; }
+
+    /// <summary><see cref="PersonRoles"/> id of the person it is about.</summary>
+    public required string To { get; init; }
+
+    public bool Sympathy { get; init; }
+
+    public bool Pair { get; init; }
+}
+
+/// <summary>
+/// Optional singleton, like <see cref="BehaviorDef"/>. Vanilla core does not ship one; a content
+/// pack that wants crushes and pairs adds the numbers. Simulation reads the def if present and
+/// no-ops when it is missing — packs are not named in code.
+/// </summary>
+public sealed class AffinityRulesDef : Def
+{
+    /// <summary>Opinion at or above this (plus trait offset) becomes a one-way crush.</summary>
+    public int SympathyThreshold { get; init; } = 50;
+
+    /// <summary>Mutual crushes at or above this may become a pair, if the role pair allows it.</summary>
+    public int PairThreshold { get; init; } = 70;
+
+    /// <summary>A pair ends when either opinion falls below this (plus jealous offset).</summary>
+    public int PairBreakThreshold { get; init; } = 20;
+
+    /// <summary>Both people must be at least this old to pair. Sympathy has its own age filter.</summary>
+    public int PairMinAge { get; init; } = 18;
+
+    /// <summary>Student–student sympathy: age gap no larger than this, or adjacent year.</summary>
+    public int StudentAgeDeltaYears { get; init; } = 2;
+
+    public bool StudentAdjacentYear { get; init; } = true;
+
+    /// <summary>Family members never get a crush or pair. Kinship is not this overlay.</summary>
+    public bool ExcludeFamily { get; init; } = true;
+
+    /// <summary>Opinion the rebuffed person loses when a one-way crush is turned down in talk.</summary>
+    public int RebuffOpinionShift { get; init; } = -8;
+
+    public IReadOnlyList<AffinityRolePair> RolePairs { get; init; } = [];
 }
 
 /// <summary>Conversation subject. Tags gate appropriateness; language is optional skill help.</summary>