70 lines
2.6 KiB
C#
70 lines
2.6 KiB
C#
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using System;
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using System.Linq;
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using Engine.Serialization.DTOs;
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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 TransformYamlConverter : IYamlTypeConverter
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{
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public bool Accepts(Type type) => type == typeof(TransformDTO);
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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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var transform = new TransformDTO();
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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(TransformDTO.ParentId):
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transform.ParentId = new Vector2DYamlConverter().ReadYaml(parser, typeof(Vector2D))?.ToString();
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break;
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case nameof(TransformDTO.Position):
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transform.Position = (Vector2D)(new Vector2DYamlConverter().ReadYaml(parser, typeof(Vector2D)) ?? new Exception());
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break;
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case nameof(TransformDTO.Scale):
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transform.Scale = (Vector2D)(new Vector2DYamlConverter().ReadYaml(parser, typeof(Vector2D)) ?? new Exception());
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break;
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case nameof(TransformDTO.Rotation):
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transform.Rotation = float.Parse(((Scalar)parser.Current).Value);
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break;
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}
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parser.MoveNext();
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}
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return transform;
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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 transform = (TransformDTO)(value ?? throw new Exception());
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Vector2DYamlConverter vector2DYamlConverter = new();
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emitter.Emit(new MappingStart());
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if (transform.ParentId is not null)
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{
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emitter.Emit(new Scalar(nameof(TransformDTO.ParentId)));
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emitter.Emit(new Scalar(transform.ParentId));
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}
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emitter.Emit(new Scalar(nameof(TransformDTO.Position)));
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vector2DYamlConverter.WriteYaml(emitter, transform.Position, typeof(Vector2D));
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emitter.Emit(new Scalar(nameof(TransformDTO.Scale)));
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vector2DYamlConverter.WriteYaml(emitter, transform.Scale, typeof(Vector2D));
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emitter.Emit(new Scalar(nameof(TransformDTO.Rotation)));
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emitter.Emit(new Scalar(transform.Rotation.ToString()));
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emitter.Emit(new MappingEnd());
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}
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}
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