Added same CustomTypeDefinition stuff to Tmx

DotTiled.Tests/Serialization/Tmx/TmxMapReaderTests.cs

@@ -15,7 +15,7 @@ public partial class TmxMapReaderTests
     // Act
     Action act = () =>
     {
-      using var _ = new TmxMapReader(xmlReader, externalTilesetResolver, externalTemplateResolver);
+      using var _ = new TmxMapReader(xmlReader, externalTilesetResolver, externalTemplateResolver, []);
     };
 
     // Assert
@@ -34,7 +34,7 @@ public partial class TmxMapReaderTests
     // Act
     Action act = () =>
     {
-      using var _ = new TmxMapReader(xmlReader, externalTilesetResolver, externalTemplateResolver);
+      using var _ = new TmxMapReader(xmlReader, externalTilesetResolver, externalTemplateResolver, []);
     };
 
     // Assert
@@ -53,7 +53,7 @@ public partial class TmxMapReaderTests
     // Act
     Action act = () =>
     {
-      using var _ = new TmxMapReader(xmlReader, externalTilesetResolver, externalTemplateResolver);
+      using var _ = new TmxMapReader(xmlReader, externalTilesetResolver, externalTemplateResolver, []);
     };
 
     // Assert
@@ -70,7 +70,7 @@ public partial class TmxMapReaderTests
     Func<string, Template> externalTemplateResolver = (_) => new Template { Object = new RectangleObject { } };
 
     // Act
-    using var tmxMapReader = new TmxMapReader(xmlReader, externalTilesetResolver, externalTemplateResolver);
+    using var tmxMapReader = new TmxMapReader(xmlReader, externalTilesetResolver, externalTemplateResolver, []);
 
     // Assert
     Assert.NotNull(tmxMapReader);
@@ -91,20 +91,55 @@ public partial class TmxMapReaderTests
   public void TmxMapReaderReadMap_ValidXmlNoExternalTilesets_ReturnsMapThatEqualsExpected(string testDataFile, Map expectedMap)
   {
     // Arrange
+    CustomTypeDefinition[] customTypeDefinitions = [
+      new CustomClassDefinition
+      {
+        Name = "TestClass",
+        ID = 1,
+        UseAs = CustomClassUseAs.Property,
+        Members = [
+          new StringProperty
+          {
+            Name = "Name",
+            Value = ""
+          },
+          new FloatProperty
+          {
+            Name = "Amount",
+            Value = 0f
+          }
+        ]
+      },
+      new CustomClassDefinition
+      {
+        Name = "Test",
+        ID = 2,
+        UseAs = CustomClassUseAs.All,
+        Members = [
+          new ClassProperty
+          {
+            Name = "Yep",
+            PropertyType = "TestClass",
+            Properties = []
+          }
+        ]
+      }
+    ];
+
     using var reader = TestData.GetXmlReaderFor(testDataFile);
-    static Template ResolveTemplate(string source)
+    Template ResolveTemplate(string source)
     {
       using var xmlTemplateReader = TestData.GetXmlReaderFor($"Serialization.TestData.Template.{source}");
-      using var templateReader = new TxTemplateReader(xmlTemplateReader, ResolveTileset, ResolveTemplate);
+      using var templateReader = new TxTemplateReader(xmlTemplateReader, ResolveTileset, ResolveTemplate, customTypeDefinitions);
       return templateReader.ReadTemplate();
     }
-    static Tileset ResolveTileset(string source)
+    Tileset ResolveTileset(string source)
     {
       using var xmlTilesetReader = TestData.GetXmlReaderFor($"Serialization.TestData.Tileset.{source}");
-      using var tilesetReader = new TsxTilesetReader(xmlTilesetReader, ResolveTemplate);
+      using var tilesetReader = new TsxTilesetReader(xmlTilesetReader, ResolveTemplate, customTypeDefinitions);
       return tilesetReader.ReadTileset();
     }
-    using var mapReader = new TmxMapReader(reader, ResolveTileset, ResolveTemplate);
+    using var mapReader = new TmxMapReader(reader, ResolveTileset, ResolveTemplate, customTypeDefinitions);
 
     // Act
     var map = mapReader.ReadMap();
@@ -125,20 +160,54 @@ public partial class TmxMapReaderTests
   public void TmxMapReaderReadMap_ValidXmlExternalTilesetsAndTemplates_ReturnsMapThatEqualsExpected(string testDataFile, Map expectedMap)
   {
     // Arrange
+    CustomTypeDefinition[] customTypeDefinitions = [
+      new CustomClassDefinition
+      {
+        Name = "TestClass",
+        ID = 1,
+        UseAs = CustomClassUseAs.Property,
+        Members = [
+          new StringProperty
+          {
+            Name = "Name",
+            Value = ""
+          },
+          new FloatProperty
+          {
+            Name = "Amount",
+            Value = 0f
+          }
+        ]
+      },
+      new CustomClassDefinition
+      {
+        Name = "Test",
+        ID = 2,
+        UseAs = CustomClassUseAs.All,
+        Members = [
+          new ClassProperty
+          {
+            Name = "Yep",
+            PropertyType = "TestClass",
+            Properties = []
+          }
+        ]
+      }
+    ];
     using var reader = TestData.GetXmlReaderFor(testDataFile);
-    static Template ResolveTemplate(string source)
+    Template ResolveTemplate(string source)
     {
       using var xmlTemplateReader = TestData.GetXmlReaderFor($"Serialization.TestData.Template.{source}");
-      using var templateReader = new TxTemplateReader(xmlTemplateReader, ResolveTileset, ResolveTemplate);
+      using var templateReader = new TxTemplateReader(xmlTemplateReader, ResolveTileset, ResolveTemplate, customTypeDefinitions);
       return templateReader.ReadTemplate();
     }
-    static Tileset ResolveTileset(string source)
+    Tileset ResolveTileset(string source)
     {
       using var xmlTilesetReader = TestData.GetXmlReaderFor($"Serialization.TestData.Tileset.{source}");
-      using var tilesetReader = new TsxTilesetReader(xmlTilesetReader, ResolveTemplate);
+      using var tilesetReader = new TsxTilesetReader(xmlTilesetReader, ResolveTemplate, customTypeDefinitions);
       return tilesetReader.ReadTileset();
     }
-    using var mapReader = new TmxMapReader(reader, ResolveTileset, ResolveTemplate);
+    using var mapReader = new TmxMapReader(reader, ResolveTileset, ResolveTemplate, customTypeDefinitions);
 
     // Act
     var map = mapReader.ReadMap();

DotTiled/Serialization/Tmx/Tmx.Map.cs

@@ -8,7 +8,11 @@ namespace DotTiled;
 
 internal partial class Tmx
 {
-  internal static Map ReadMap(XmlReader reader, Func<string, Tileset> externalTilesetResolver, Func<string, Template> externalTemplateResolver)
+  internal static Map ReadMap(
+    XmlReader reader,
+    Func<string, Tileset> externalTilesetResolver,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     // Attributes
     var version = reader.GetRequiredAttribute("version");
@@ -64,12 +68,12 @@ internal partial class Tmx
 
     reader.ProcessChildren("map", (r, elementName) => elementName switch
     {
-      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r), "Properties"),
+      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r, customTypeDefinitions), "Properties"),
-      "tileset" => () => tilesets.Add(ReadTileset(r, externalTilesetResolver, externalTemplateResolver)),
+      "tileset" => () => tilesets.Add(ReadTileset(r, externalTilesetResolver, externalTemplateResolver, customTypeDefinitions)),
-      "layer" => () => layers.Add(ReadTileLayer(r, dataUsesChunks: infinite)),
+      "layer" => () => layers.Add(ReadTileLayer(r, infinite, customTypeDefinitions)),
-      "objectgroup" => () => layers.Add(ReadObjectLayer(r, externalTemplateResolver)),
+      "objectgroup" => () => layers.Add(ReadObjectLayer(r, externalTemplateResolver, customTypeDefinitions)),
-      "imagelayer" => () => layers.Add(ReadImageLayer(r)),
+      "imagelayer" => () => layers.Add(ReadImageLayer(r, customTypeDefinitions)),
-      "group" => () => layers.Add(ReadGroup(r, externalTemplateResolver)),
+      "group" => () => layers.Add(ReadGroup(r, externalTemplateResolver, customTypeDefinitions)),
       _ => r.Skip
     });
 

DotTiled/Serialization/Tmx/Tmx.ObjectLayer.cs

@@ -9,7 +9,10 @@ namespace DotTiled;
 
 internal partial class Tmx
 {
-  internal static ObjectLayer ReadObjectLayer(XmlReader reader, Func<string, Template> externalTemplateResolver)
+  internal static ObjectLayer ReadObjectLayer(
+    XmlReader reader,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     // Attributes
     var id = reader.GetRequiredAttributeParseable<uint>("id");
@@ -40,8 +43,8 @@ internal partial class Tmx
 
     reader.ProcessChildren("objectgroup", (r, elementName) => elementName switch
     {
-      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r), "Properties"),
+      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r, customTypeDefinitions), "Properties"),
-      "object" => () => objects.Add(ReadObject(r, externalTemplateResolver)),
+      "object" => () => objects.Add(ReadObject(r, externalTemplateResolver, customTypeDefinitions)),
       _ => r.Skip
     });
 
@@ -68,7 +71,10 @@ internal partial class Tmx
     };
   }
 
-  internal static Object ReadObject(XmlReader reader, Func<string, Template> externalTemplateResolver)
+  internal static Object ReadObject(
+    XmlReader reader,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     // Attributes
     var template = reader.GetOptionalAttribute("template");
@@ -122,7 +128,7 @@ internal partial class Tmx
 
     reader.ProcessChildren("object", (r, elementName) => elementName switch
     {
-      "properties" => () => Helpers.SetAtMostOnceUsingCounter(ref properties, MergeProperties(properties, ReadProperties(r)), "Properties", ref propertiesCounter),
+      "properties" => () => Helpers.SetAtMostOnceUsingCounter(ref properties, MergeProperties(properties, ReadProperties(r, customTypeDefinitions)), "Properties", ref propertiesCounter),
       "ellipse" => () => Helpers.SetAtMostOnce(ref obj, ReadEllipseObject(r), "Object marker"),
       "point" => () => Helpers.SetAtMostOnce(ref obj, ReadPointObject(r), "Object marker"),
       "polygon" => () => Helpers.SetAtMostOnce(ref obj, ReadPolygonObject(r), "Object marker"),
@@ -280,7 +286,11 @@ internal partial class Tmx
     };
   }
 
-  internal static Template ReadTemplate(XmlReader reader, Func<string, Tileset> externalTilesetResolver, Func<string, Template> externalTemplateResolver)
+  internal static Template ReadTemplate(
+    XmlReader reader,
+    Func<string, Tileset> externalTilesetResolver,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     // No attributes
 
@@ -292,8 +302,8 @@ internal partial class Tmx
 
     reader.ProcessChildren("template", (r, elementName) => elementName switch
     {
-      "tileset" => () => Helpers.SetAtMostOnce(ref tileset, ReadTileset(r, externalTilesetResolver, externalTemplateResolver), "Tileset"),
+      "tileset" => () => Helpers.SetAtMostOnce(ref tileset, ReadTileset(r, externalTilesetResolver, externalTemplateResolver, customTypeDefinitions), "Tileset"),
-      "object" => () => Helpers.SetAtMostOnce(ref obj, ReadObject(r, externalTemplateResolver), "Object"),
+      "object" => () => Helpers.SetAtMostOnce(ref obj, ReadObject(r, externalTemplateResolver, customTypeDefinitions), "Object"),
       _ => r.Skip
     });
 

DotTiled/Serialization/Tmx/Tmx.Properties.cs

@@ -6,7 +6,9 @@ namespace DotTiled;
 
 internal partial class Tmx
 {
-  internal static Dictionary<string, IProperty> ReadProperties(XmlReader reader)
+  internal static Dictionary<string, IProperty> ReadProperties(
+    XmlReader reader,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     return reader.ReadList("properties", "property", (r) =>
     {
@@ -33,22 +35,38 @@ internal partial class Tmx
         PropertyType.Color => new ColorProperty { Name = name, Value = r.GetRequiredAttributeParseable<Color>("value") },
         PropertyType.File => new FileProperty { Name = name, Value = r.GetRequiredAttribute("value") },
         PropertyType.Object => new ObjectProperty { Name = name, Value = r.GetRequiredAttributeParseable<uint>("value") },
-        PropertyType.Class => ReadClassProperty(r),
+        PropertyType.Class => ReadClassProperty(r, customTypeDefinitions),
         _ => throw new XmlException("Invalid property type")
       };
       return (name, property);
     }).ToDictionary(x => x.name, x => x.property);
   }
 
-  internal static ClassProperty ReadClassProperty(XmlReader reader)
+  internal static ClassProperty ReadClassProperty(
+    XmlReader reader,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     var name = reader.GetRequiredAttribute("name");
     var propertyType = reader.GetRequiredAttribute("propertytype");
 
+    var customTypeDef = customTypeDefinitions.FirstOrDefault(ctd => ctd.Name == propertyType);
+    if (customTypeDef is CustomClassDefinition ccd)
+    {
       reader.ReadStartElement("property");
-    var properties = ReadProperties(reader);
+      var propsInType = CreateInstanceOfCustomClass(ccd);
-    reader.ReadEndElement();
+      var props = ReadProperties(reader, customTypeDefinitions);
 
-    return new ClassProperty { Name = name, PropertyType = propertyType, Properties = properties };
+      var mergedProps = MergeProperties(propsInType, props);
+
+      reader.ReadEndElement();
+      return new ClassProperty { Name = name, PropertyType = propertyType, Properties = mergedProps };
+    }
+
+    throw new XmlException($"Unkonwn custom class definition: {propertyType}");
+  }
+
+  internal static Dictionary<string, IProperty> CreateInstanceOfCustomClass(CustomClassDefinition customClassDefinition)
+  {
+    return customClassDefinition.Members.ToDictionary(m => m.Name, m => m.Clone());
   }
 }

DotTiled/Serialization/Tmx/Tmx.TileLayer.cs

@@ -7,7 +7,10 @@ namespace DotTiled;
 
 internal partial class Tmx
 {
-  internal static TileLayer ReadTileLayer(XmlReader reader, bool dataUsesChunks)
+  internal static TileLayer ReadTileLayer(
+    XmlReader reader,
+    bool dataUsesChunks,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     var id = reader.GetRequiredAttributeParseable<uint>("id");
     var name = reader.GetOptionalAttribute("name") ?? "";
@@ -30,7 +33,7 @@ internal partial class Tmx
     reader.ProcessChildren("layer", (r, elementName) => elementName switch
     {
       "data" => () => Helpers.SetAtMostOnce(ref data, ReadData(r, dataUsesChunks), "Data"),
-      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r), "Properties"),
+      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r, customTypeDefinitions), "Properties"),
       _ => r.Skip
     });
 
@@ -55,7 +58,9 @@ internal partial class Tmx
     };
   }
 
-  internal static ImageLayer ReadImageLayer(XmlReader reader)
+  internal static ImageLayer ReadImageLayer(
+    XmlReader reader,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     var id = reader.GetRequiredAttributeParseable<uint>("id");
     var name = reader.GetOptionalAttribute("name") ?? "";
@@ -78,7 +83,7 @@ internal partial class Tmx
     reader.ProcessChildren("imagelayer", (r, elementName) => elementName switch
     {
       "image" => () => Helpers.SetAtMostOnce(ref image, ReadImage(r), "Image"),
-      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r), "Properties"),
+      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r, customTypeDefinitions), "Properties"),
       _ => r.Skip
     });
 
@@ -103,7 +108,10 @@ internal partial class Tmx
     };
   }
 
-  internal static Group ReadGroup(XmlReader reader, Func<string, Template> externalTemplateResolver)
+  internal static Group ReadGroup(
+    XmlReader reader,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     var id = reader.GetRequiredAttributeParseable<uint>("id");
     var name = reader.GetOptionalAttribute("name") ?? "";
@@ -121,11 +129,11 @@ internal partial class Tmx
 
     reader.ProcessChildren("group", (r, elementName) => elementName switch
     {
-      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r), "Properties"),
+      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r, customTypeDefinitions), "Properties"),
-      "layer" => () => layers.Add(ReadTileLayer(r, dataUsesChunks: false)),
+      "layer" => () => layers.Add(ReadTileLayer(r, false, customTypeDefinitions)),
-      "objectgroup" => () => layers.Add(ReadObjectLayer(r, externalTemplateResolver)),
+      "objectgroup" => () => layers.Add(ReadObjectLayer(r, externalTemplateResolver, customTypeDefinitions)),
-      "imagelayer" => () => layers.Add(ReadImageLayer(r)),
+      "imagelayer" => () => layers.Add(ReadImageLayer(r, customTypeDefinitions)),
-      "group" => () => layers.Add(ReadGroup(r, externalTemplateResolver)),
+      "group" => () => layers.Add(ReadGroup(r, externalTemplateResolver, customTypeDefinitions)),
       _ => r.Skip
     });
 

DotTiled/Serialization/Tmx/Tmx.Tileset.cs

@@ -8,7 +8,11 @@ namespace DotTiled;
 
 internal partial class Tmx
 {
-  internal static Tileset ReadTileset(XmlReader reader, Func<string, Tileset>? externalTilesetResolver, Func<string, Template> externalTemplateResolver)
+  internal static Tileset ReadTileset(
+    XmlReader reader,
+    Func<string, Tileset>? externalTilesetResolver,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     // Attributes
     var version = reader.GetOptionalAttribute("version");
@@ -64,10 +68,10 @@ internal partial class Tmx
       "image" => () => Helpers.SetAtMostOnce(ref image, ReadImage(r), "Image"),
       "tileoffset" => () => Helpers.SetAtMostOnce(ref tileOffset, ReadTileOffset(r), "TileOffset"),
       "grid" => () => Helpers.SetAtMostOnce(ref grid, ReadGrid(r), "Grid"),
-      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r), "Properties"),
+      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r, customTypeDefinitions), "Properties"),
-      "wangsets" => () => Helpers.SetAtMostOnce(ref wangsets, ReadWangsets(r), "Wangsets"),
+      "wangsets" => () => Helpers.SetAtMostOnce(ref wangsets, ReadWangsets(r, customTypeDefinitions), "Wangsets"),
       "transformations" => () => Helpers.SetAtMostOnce(ref transformations, ReadTransformations(r), "Transformations"),
-      "tile" => () => tiles.Add(ReadTile(r, externalTemplateResolver)),
+      "tile" => () => tiles.Add(ReadTile(r, externalTemplateResolver, customTypeDefinitions)),
       _ => r.Skip
     });
 
@@ -198,7 +202,10 @@ internal partial class Tmx
     return new Transformations { HFlip = hFlip, VFlip = vFlip, Rotate = rotate, PreferUntransformed = preferUntransformed };
   }
 
-  internal static Tile ReadTile(XmlReader reader, Func<string, Template> externalTemplateResolver)
+  internal static Tile ReadTile(
+    XmlReader reader,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     // Attributes
     var id = reader.GetRequiredAttributeParseable<uint>("id");
@@ -217,9 +224,9 @@ internal partial class Tmx
 
     reader.ProcessChildren("tile", (r, elementName) => elementName switch
     {
-      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r), "Properties"),
+      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r, customTypeDefinitions), "Properties"),
       "image" => () => Helpers.SetAtMostOnce(ref image, ReadImage(r), "Image"),
-      "objectgroup" => () => Helpers.SetAtMostOnce(ref objectLayer, ReadObjectLayer(r, externalTemplateResolver), "ObjectLayer"),
+      "objectgroup" => () => Helpers.SetAtMostOnce(ref objectLayer, ReadObjectLayer(r, externalTemplateResolver, customTypeDefinitions), "ObjectLayer"),
       "animation" => () => Helpers.SetAtMostOnce(ref animation, r.ReadList<Frame>("animation", "frame", (ar) =>
       {
         var tileID = ar.GetRequiredAttributeParseable<uint>("tileid");
@@ -245,12 +252,16 @@ internal partial class Tmx
     };
   }
 
-  internal static List<Wangset> ReadWangsets(XmlReader reader)
+  internal static List<Wangset> ReadWangsets(
+    XmlReader reader,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
-    return reader.ReadList<Wangset>("wangsets", "wangset", ReadWangset);
+    return reader.ReadList<Wangset>("wangsets", "wangset", r => ReadWangset(r, customTypeDefinitions));
   }
 
-  internal static Wangset ReadWangset(XmlReader reader)
+  internal static Wangset ReadWangset(
+    XmlReader reader,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     // Attributes
     var name = reader.GetRequiredAttribute("name");
@@ -264,8 +275,8 @@ internal partial class Tmx
 
     reader.ProcessChildren("wangset", (r, elementName) => elementName switch
     {
-      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r), "Properties"),
+      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r, customTypeDefinitions), "Properties"),
-      "wangcolor" => () => wangColors.Add(ReadWangColor(r)),
+      "wangcolor" => () => wangColors.Add(ReadWangColor(r, customTypeDefinitions)),
       "wangtile" => () => wangTiles.Add(ReadWangTile(r)),
       _ => r.Skip
     });
@@ -284,7 +295,9 @@ internal partial class Tmx
     };
   }
 
-  internal static WangColor ReadWangColor(XmlReader reader)
+  internal static WangColor ReadWangColor(
+    XmlReader reader,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     // Attributes
     var name = reader.GetRequiredAttribute("name");
@@ -298,7 +311,7 @@ internal partial class Tmx
 
     reader.ProcessChildren("wangcolor", (r, elementName) => elementName switch
     {
-      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r), "Properties"),
+      "properties" => () => Helpers.SetAtMostOnce(ref properties, ReadProperties(r, customTypeDefinitions), "Properties"),
       _ => r.Skip
     });
 

DotTiled/Serialization/Tmx/TmxMapReader.cs

@@ -13,11 +13,18 @@ public class TmxMapReader : IMapReader
   private readonly XmlReader _reader;
   private bool disposedValue;
 
-  public TmxMapReader(XmlReader reader, Func<string, Tileset> externalTilesetResolver, Func<string, Template> externalTemplateResolver)
+  private readonly IReadOnlyCollection<CustomTypeDefinition> _customTypeDefinitions;
+
+  public TmxMapReader(
+    XmlReader reader,
+    Func<string, Tileset> externalTilesetResolver,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     _reader = reader ?? throw new ArgumentNullException(nameof(reader));
     _externalTilesetResolver = externalTilesetResolver ?? throw new ArgumentNullException(nameof(externalTilesetResolver));
     _externalTemplateResolver = externalTemplateResolver ?? throw new ArgumentNullException(nameof(externalTemplateResolver));
+    _customTypeDefinitions = customTypeDefinitions ?? throw new ArgumentNullException(nameof(customTypeDefinitions));
 
     // Prepare reader
     _reader.MoveToContent();
@@ -25,7 +32,7 @@ public class TmxMapReader : IMapReader
 
   public Map ReadMap()
   {
-    return Tmx.ReadMap(_reader, _externalTilesetResolver, _externalTemplateResolver);
+    return Tmx.ReadMap(_reader, _externalTilesetResolver, _externalTemplateResolver, _customTypeDefinitions);
   }
 
   protected virtual void Dispose(bool disposing)

DotTiled/Serialization/Tmx/TsxTilesetReader.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Xml;
 
 namespace DotTiled;
@@ -11,13 +12,22 @@ public class TsxTilesetReader : ITilesetReader
   private readonly XmlReader _reader;
   private bool disposedValue;
 
-  public TsxTilesetReader(XmlReader reader, Func<string, Template> externalTemplateResolver)
+  private readonly IReadOnlyCollection<CustomTypeDefinition> _customTypeDefinitions;
+
+  public TsxTilesetReader(
+    XmlReader reader,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     _reader = reader ?? throw new ArgumentNullException(nameof(reader));
     _externalTemplateResolver = externalTemplateResolver ?? throw new ArgumentNullException(nameof(externalTemplateResolver));
+    _customTypeDefinitions = customTypeDefinitions ?? throw new ArgumentNullException(nameof(customTypeDefinitions));
+
+    // Prepare reader
+    _reader.MoveToContent();
   }
 
-  public Tileset ReadTileset() => Tmx.ReadTileset(_reader, null, _externalTemplateResolver);
+  public Tileset ReadTileset() => Tmx.ReadTileset(_reader, null, _externalTemplateResolver, _customTypeDefinitions);
 
   protected virtual void Dispose(bool disposing)
   {

DotTiled/Serialization/Tmx/TxTemplateReader.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Xml;
 
 namespace DotTiled;
@@ -12,17 +13,24 @@ public class TxTemplateReader : ITemplateReader
   private readonly XmlReader _reader;
   private bool disposedValue;
 
-  public TxTemplateReader(XmlReader reader, Func<string, Tileset> externalTilesetResolver, Func<string, Template> externalTemplateResolver)
+  private readonly IReadOnlyCollection<CustomTypeDefinition> _customTypeDefinitions;
+
+  public TxTemplateReader(
+    XmlReader reader,
+    Func<string, Tileset> externalTilesetResolver,
+    Func<string, Template> externalTemplateResolver,
+    IReadOnlyCollection<CustomTypeDefinition> customTypeDefinitions)
   {
     _reader = reader ?? throw new ArgumentNullException(nameof(reader));
     _externalTilesetResolver = externalTilesetResolver ?? throw new ArgumentNullException(nameof(externalTilesetResolver));
     _externalTemplateResolver = externalTemplateResolver ?? throw new ArgumentNullException(nameof(externalTemplateResolver));
+    _customTypeDefinitions = customTypeDefinitions ?? throw new ArgumentNullException(nameof(customTypeDefinitions));
 
     // Prepare reader
     _reader.MoveToContent();
   }
 
-  public Template ReadTemplate() => Tmx.ReadTemplate(_reader, _externalTilesetResolver, _externalTemplateResolver);
+  public Template ReadTemplate() => Tmx.ReadTemplate(_reader, _externalTilesetResolver, _externalTemplateResolver, _customTypeDefinitions);
 
   protected virtual void Dispose(bool disposing)
   {