enter intro cutscene

Common/Data/Config/DictionaryConverter.cs

@@ -0,0 +1,43 @@
+using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
+
+namespace MikuSB.Data.Config;
+
+class IntDictionaryConverter : JsonConverter<Dictionary<int, int>>
+{
+    public override Dictionary<int, int>? ReadJson(JsonReader reader, Type objectType, Dictionary<int, int>? existingValue, bool hasExistingValue, JsonSerializer serializer)
+    {
+        if (reader.TokenType == JsonToken.StartArray)
+        {
+            JArray.Load(reader);
+            return new Dictionary<int, int>();
+        }
+        else if (reader.TokenType == JsonToken.StartObject)
+        {
+            var obj = JObject.Load(reader);
+            var dict = new Dictionary<int, int>();
+
+            foreach (var prop in obj.Properties())
+            {
+                if (int.TryParse(prop.Name, out var key))
+                {
+                    dict[key] = prop.Value.ToObject<int>();
+                }
+            }
+            return dict;
+        }
+
+        return new Dictionary<int, int>();
+    }
+
+    public override void WriteJson(JsonWriter writer, Dictionary<int, int>? value, JsonSerializer serializer)
+    {
+        writer.WriteStartObject();
+        foreach (var kv in value)
+        {
+            writer.WritePropertyName(kv.Key.ToString());
+            writer.WriteValue(kv.Value);
+        }
+        writer.WriteEndObject();
+    }
+}