spart to data

SlaveEngine.Assets/Asset.cs

@@ -1,6 +1,6 @@
 namespace SlaveEngine.Assets;
 
 public abstract class Asset {
-    public Guid Guid { get; private set; }
+    public Guid Guid { get; init; }
-    public AssetFileInfo FileInfo { get; private set; }
+    public AssetFileInfo FileInfo { get; init; }
 }

SlaveEngine.Assets/Models/PartAsset.cs

@@ -0,0 +1,14 @@
+using SlaveEngine.Assets.Primitives;
+
+namespace SlaveEngine.Assets.Models;
+
+public sealed class PartAsset : Asset {
+    public required string Id { get; init; }
+    public required string OriginalKey { get; init; }
+    public required string Resource { get; init; }
+    public int MorphX { get; init; }
+    public int MorphY { get; init; }
+    public required string[] Fields { get; init; }
+    public required Joint[] Joints { get; init; }
+    public required VariantAsset[] Variants { get; init; }
+}

SlaveEngine.Assets/Models/PathData.cs

@@ -0,0 +1,11 @@
+using SlaveEngine.Assets.Primitives;
+
+namespace SlaveEngine.Assets.Models;
+
+public sealed class PathData {
+    public required string Fill { get; init; }
+    public required string Stroke { get; init; }
+    public float StrokeWidth { get; init; }
+    public bool IsClosed { get; init; }
+    public required BezierCommand[] Commands { get; init; }
+}

SlaveEngine.Assets/Models/PathGroup.cs

@@ -0,0 +1,14 @@
+namespace SlaveEngine.Assets.Models;
+
+public sealed class PathGroup {
+    public required string Name { get; init; }
+    public bool HasTransform { get; init; }
+    public float Tx { get; init; }
+    public float Ty { get; init; }
+    public float Angle { get; init; }
+    public float Sx { get; init; }
+    public float Sy { get; init; }
+    public float Bx { get; init; }
+    public float By { get; init; }
+    public required PathData[] Paths { get; init; }
+}

SlaveEngine.Assets/Models/VariantAsset.cs

@@ -0,0 +1,7 @@
+namespace SlaveEngine.Assets.Models;
+
+public sealed class VariantAsset {
+    public int X { get; init; }
+    public int Y { get; init; }
+    public required PathGroup[] Groups { get; init; }
+}

SlaveEngine.Assets/Primitives/BezierCommand.cs

@@ -0,0 +1,6 @@
+namespace SlaveEngine.Assets.Primitives;
+
+public readonly struct BezierCommand {
+    public CommandType Type { get; init; }
+    public float[] Args { get; init; }
+}

SlaveEngine.Assets/Primitives/CommandType.cs

@@ -0,0 +1,8 @@
+namespace SlaveEngine.Assets.Primitives;
+
+public enum CommandType : byte {
+    MoveTo = 0,
+    LineTo = 1,
+    CubicBezierTo = 2,
+    Close = 3
+}

SlaveEngine.Assets/Primitives/Joint.cs

@@ -0,0 +1,6 @@
+namespace SlaveEngine.Assets.Primitives;
+
+public readonly struct Joint {
+    public float X { get; init; }
+    public float Y { get; init; }
+}

SlaveEngine.Assets/Processors/PartProcessor.cs

@@ -0,0 +1,120 @@
+using System.Text;
+using SlaveEngine.Assets.Models;
+using SlaveEngine.Assets.Primitives;
+
+namespace SlaveEngine.Assets.Processors;
+
+[AssetProcessor(typeof(PartAsset), managedExtensions: [".spart"])]
+public sealed class PartProcessor : AssetProcessor {
+    public override Asset Process(AssetFileInfo fileInfo, byte[] data) {
+        using var stream = new MemoryStream(data);
+        using var reader = new BinaryReader(stream);
+
+        var magic = reader.ReadBytes(4);
+        if (magic[0] != 'S' || magic[1] != 'P' || magic[2] != 'R' || magic[3] != 'T')
+            throw new InvalidDataException("Invalid .spart file magic");
+
+        var version = reader.ReadInt32();
+        if (version != 1)
+            throw new InvalidDataException($"Unsupported .spart version: {version}");
+
+        var id = ReadString(reader);
+        var originalKey = ReadString(reader);
+        var resource = ReadString(reader);
+        var morphX = reader.ReadInt32();
+        var morphY = reader.ReadInt32();
+
+        var fieldCount = reader.ReadInt32();
+        var fields = new string[fieldCount];
+        for (var i = 0; i < fieldCount; i++)
+            fields[i] = ReadString(reader);
+
+        var jointCount = reader.ReadInt32();
+        var joints = new Joint[jointCount];
+        for (var i = 0; i < jointCount; i++)
+            joints[i] = new Joint { X = reader.ReadSingle(), Y = reader.ReadSingle() };
+
+        var variantCount = reader.ReadInt32();
+        var variants = new VariantAsset[variantCount];
+        for (var v = 0; v < variantCount; v++) {
+            var vx = reader.ReadInt32();
+            var vy = reader.ReadInt32();
+
+            var groupCount = reader.ReadInt32();
+            var groups = new PathGroup[groupCount];
+            for (var g = 0; g < groupCount; g++) {
+                var groupName = ReadString(reader);
+                var hasTransform = reader.ReadBoolean();
+                float tx = 0, ty = 0, angle = 0, sx = 1, sy = 1, bx = 0, by = 0;
+                if (hasTransform) {
+                    tx = reader.ReadSingle();
+                    ty = reader.ReadSingle();
+                    angle = reader.ReadSingle();
+                    sx = reader.ReadSingle();
+                    sy = reader.ReadSingle();
+                    bx = reader.ReadSingle();
+                    by = reader.ReadSingle();
+                }
+
+                var pathCount = reader.ReadInt32();
+                var paths = new PathData[pathCount];
+                for (var p = 0; p < pathCount; p++) {
+                    var fill = ReadString(reader);
+                    var stroke = ReadString(reader);
+                    var strokeWidth = reader.ReadSingle();
+                    var isClosed = reader.ReadBoolean();
+
+                    var cmdCount = reader.ReadInt32();
+                    var cmds = new BezierCommand[cmdCount];
+                    for (var c = 0; c < cmdCount; c++) {
+                        var cmdType = (CommandType)reader.ReadByte();
+                        var argCount = reader.ReadInt32();
+                        var args = new float[argCount];
+                        for (var a = 0; a < argCount; a++)
+                            args[a] = reader.ReadSingle();
+                        cmds[c] = new BezierCommand { Type = cmdType, Args = args };
+                    }
+
+                    paths[p] = new PathData {
+                        Fill = fill,
+                        Stroke = stroke,
+                        StrokeWidth = strokeWidth,
+                        IsClosed = isClosed,
+                        Commands = cmds
+                    };
+                }
+
+                groups[g] = new PathGroup {
+                    Name = groupName,
+                    HasTransform = hasTransform,
+                    Tx = tx, Ty = ty, Angle = angle,
+                    Sx = sx, Sy = sy, Bx = bx, By = by,
+                    Paths = paths
+                };
+            }
+
+            variants[v] = new VariantAsset {
+                X = vx, Y = vy, Groups = groups
+            };
+        }
+
+        return new PartAsset {
+            Guid = Guid.NewGuid(),
+            FileInfo = fileInfo,
+            Id = id,
+            OriginalKey = originalKey,
+            Resource = resource,
+            MorphX = morphX,
+            MorphY = morphY,
+            Fields = fields,
+            Joints = joints,
+            Variants = variants
+        };
+    }
+
+    private static string ReadString(BinaryReader reader) {
+        var len = reader.ReadInt32();
+        var bytes = reader.ReadBytes(len);
+        return Encoding.UTF8.GetString(bytes);
+    }
+}

SlaveEngine.Assets/SlaveEngine.Assets.csproj

@@ -6,4 +6,8 @@
         <Nullable>enable</Nullable>
     </PropertyGroup>
 
+    <ItemGroup>
+      <PackageReference Include="YamlDotNet" Version="18.0.0" />
+    </ItemGroup>
+
 </Project>