horsegen: generate group -> skills relation

horsegen/gen.go

@@ -62,10 +62,26 @@ func ExecCharacterKK(t *template.Template, w io.Writer, c []NamedID[Character],
 }
 
 func ExecSkillKK(t *template.Template, w io.Writer, g []NamedID[SkillGroup], s []Skill) error {
+	m := make(map[int][]Skill, len(g))
+	u := make(map[int]int, len(g))
+	for _, t := range s {
+		m[t.GroupID] = append(m[t.GroupID], t)
+		if t.Rarity >= 4 {
+			// Add inheritable uniques to u so we can add inherited versions to groups.
+			u[t.ID] = t.GroupID
+		}
+	}
+	// Now that u is set up, iterate through again and add in inherited skills.
+	for _, t := range s {
+		if t.InheritID != 0 {
+			m[u[t.InheritID]] = append(m[u[t.InheritID]], t)
+		}
+	}
 	data := struct {
-		Groups []NamedID[SkillGroup]
-		Skills []Skill
-	}{g, s}
+		Groups  []NamedID[SkillGroup]
+		Skills  []Skill
+		Related map[int][]Skill
+	}{g, s, m}
 	return t.ExecuteTemplate(w, "koka-skill", &data)
 }