refactor: moved serialization into core project

Engine.Core/Serialization/Converters/Primitives/TriangleConverter.cs

@@ -0,0 +1,47 @@
+using System;
+
+using YamlDotNet.Core;
+using YamlDotNet.Core.Events;
+using YamlDotNet.Serialization;
+
+namespace Syntriax.Engine.Core.Serialization;
+
+public class TriangleConverter : IEngineTypeYamlConverter
+{
+    public bool Accepts(Type type) => type == typeof(Triangle);
+
+    public object? ReadYaml(IParser parser, Type type, ObjectDeserializer rootDeserializer)
+    {
+        parser.Consume<MappingStart>();
+
+        if (parser.Consume<Scalar>().Value.CompareTo(nameof(Triangle.A)) != 0)
+            throw new ArgumentException($"{nameof(Triangle)} mapping must start with {nameof(Triangle.A)}");
+        Vector2D a = (Vector2D)rootDeserializer(typeof(Vector2D))!;
+
+        if (parser.Consume<Scalar>().Value.CompareTo(nameof(Triangle.B)) != 0)
+            throw new ArgumentException($"{nameof(Triangle)} mapping must have {nameof(Triangle.B)} after {nameof(Triangle.A)}");
+        Vector2D b = (Vector2D)rootDeserializer(typeof(Vector2D))!;
+
+        if (parser.Consume<Scalar>().Value.CompareTo(nameof(Triangle.C)) != 0)
+            throw new ArgumentException($"{nameof(Triangle)} mapping must end with {nameof(Triangle.C)}");
+        Vector2D c = (Vector2D)rootDeserializer(typeof(Vector2D))!;
+
+        parser.Consume<MappingEnd>();
+
+        return new Triangle(a, b, c);
+    }
+
+    public void WriteYaml(IEmitter emitter, object? value, Type type, ObjectSerializer serializer)
+    {
+        Triangle aabb = (Triangle)value!;
+
+        emitter.Emit(new MappingStart());
+        emitter.Emit(new Scalar(nameof(Triangle.A)));
+        serializer(aabb.A, typeof(Vector2D));
+        emitter.Emit(new Scalar(nameof(Triangle.B)));
+        serializer(aabb.B, typeof(Vector2D));
+        emitter.Emit(new Scalar(nameof(Triangle.C)));
+        serializer(aabb.C, typeof(Vector2D));
+        emitter.Emit(new MappingEnd());
+    }
+}