refactor scaffolding to Scenes and Characters for intuitive writing with

yarn

NightclubArcadia/Assets/Dialogue/Common.yarn

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+// Shared declarations for the whole project.
+//
+// This node is never played. Declaring every variable in one place means the
+// compiler catches typos ("$reputaton") instead of silently creating a second
+// variable at runtime.
+
+title: Declarations
+---
+// How much the door staff likes you.
+<<declare $reputation = 0 as number>>
+
+// Set when the player has tried the "I'm on the list" line at least once.
+<<declare $claimed_to_be_on_list = false as bool>>
+
+// The bouncer's verdict, read by the scene that called him.
+<<declare $went_inside = false as bool>>
+
+// Smart variable: derived, not stored. Can never drift out of sync with
+// $reputation, so there's nothing to remember to update.
+<<declare $is_vip = $reputation > 10>>
+===