Initial commit: Theriapolis baseline at port/godot branch point

Captures the pre-Godot-port state of the codebase. This is the rollback anchor for the Godot port (M0 of theriapolis-rpg-implementation-plan-godot-port.md). All Phase 0 through Phase 6.5 work is included; Phase 7 is in flight. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-30 20:40:51 -07:00
commit b451f83174
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+using Theriapolis.Core.Rules.Quests;
+
+namespace Theriapolis.Core.Persistence;
+
+/// <summary>
+/// Phase 6 M4 — bidirectional translator between the live
+/// <see cref="QuestEngine"/> and its serializable
+/// <see cref="QuestSnapshot"/>.
+/// </summary>
+public static class QuestCodec
+{
+    public static QuestSnapshot Capture(QuestEngine engine)
+    {
+        var snap = new QuestSnapshot();
+        foreach (var s in engine.Active.Values)    snap.Active.Add(CaptureState(s));
+        foreach (var s in engine.Completed.Values) snap.Completed.Add(CaptureState(s));
+        foreach (var line in engine.Journal)       snap.Journal.Add(line);
+        return snap;
+    }
+
+    public static void Restore(QuestEngine engine, QuestSnapshot snap)
+    {
+        engine.Clear();
+        foreach (var s in snap.Active)    engine.AdoptActive(RestoreState(s));
+        foreach (var s in snap.Completed) engine.AdoptCompleted(RestoreState(s));
+        foreach (var line in snap.Journal) engine.Journal.Add(line);
+    }
+
+    private static QuestStateSnapshot CaptureState(QuestState s) => new()
+    {
+        QuestId       = s.QuestId,
+        CurrentStep   = s.CurrentStep,
+        Status        = (byte)s.Status,
+        StartedAt     = s.StartedAt,
+        StepStartedAt = s.StepStartedAt,
+        JournalLines  = s.Journal.ToArray(),
+    };
+
+    private static QuestState RestoreState(QuestStateSnapshot s)
+    {
+        var st = new QuestState
+        {
+            QuestId       = s.QuestId,
+            CurrentStep   = s.CurrentStep,
+            Status        = (QuestStatus)s.Status,
+            StartedAt     = s.StartedAt,
+            StepStartedAt = s.StepStartedAt,
+        };
+        foreach (var line in s.JournalLines) st.Journal.Add(line);
+        return st;
+    }
+}