49 lines
1.5 KiB
C#
49 lines
1.5 KiB
C#
using System;
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using Syntriax.Engine.Core;
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using YamlDotNet.Core;
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using YamlDotNet.Core.Events;
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using YamlDotNet.Serialization;
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namespace Engine.Serialization;
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internal class Vector2DYamlConverter : IYamlTypeConverter
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{
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public bool Accepts(Type type) => type == typeof(Vector2D);
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public object? ReadYaml(IParser parser, Type type)
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{
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if (parser.Current is not MappingStart)
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throw new InvalidOperationException("Expected MappingStart");
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parser.MoveNext();
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float x = 0.0f;
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float y = 0.0f;
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while (parser.Current != null && parser.Current is not MappingEnd)
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{
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var propertyName = ((Scalar)parser.Current).Value;
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parser.MoveNext();
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switch (propertyName)
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{
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case nameof(Vector2D.X): x = float.Parse(((Scalar)parser.Current).Value); break;
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case nameof(Vector2D.Y): y = float.Parse(((Scalar)parser.Current).Value); break;
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}
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parser.MoveNext();
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}
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return new Vector2D(x, y);
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}
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public void WriteYaml(IEmitter emitter, object? value, Type type)
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{
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var vector = (Vector2D)(value ?? throw new Exception());
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emitter.Emit(new MappingStart());
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emitter.Emit(new Scalar(nameof(Vector2D.X)));
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emitter.Emit(new Scalar(vector.X.ToString()));
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emitter.Emit(new Scalar(nameof(Vector2D.Y)));
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emitter.Emit(new Scalar(vector.Y.ToString()));
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emitter.Emit(new MappingEnd());
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}
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}
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