parse binary varset file

VarsetLib/BinaryVarsetFileParser.cs

@@ -0,0 +1,46 @@
+using Common;
+
+namespace VarsetLib;
+
+public class BinaryVarsetFileParser
+{
+    public static BinaryVarsetFile Parse(string path)
+    {
+        using FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
+
+        return Parse(fs);
+    }
+
+    public static BinaryVarsetFile Parse(Stream fs)
+    {
+        var count = fs.ReadInt32LittleEndian();
+        
+        var items = new List<BinaryVarsetItem>(count);
+
+        Span<byte> buf4 = stackalloc byte[4];
+        for (int i = 0; i < count; i++)
+        {
+            var magic1 = fs.ReadInt32LittleEndian();
+            fs.ReadExactly(buf4);
+            var magic2 = new IntFloatValue(buf4);
+
+            fs.ReadExactly(buf4);
+            var magic3 = new IntFloatValue(buf4);
+            var name = fs.ReadLengthPrefixedString();
+            var string2 = fs.ReadLengthPrefixedString();
+            
+            fs.ReadExactly(buf4);
+            var magic4 = new IntFloatValue(buf4);
+            fs.ReadExactly(buf4);
+            var magic5 = new IntFloatValue(buf4);
+            fs.ReadExactly(buf4);
+            var magic6 = new IntFloatValue(buf4);
+            fs.ReadExactly(buf4);
+            var magic7 = new IntFloatValue(buf4);
+            
+            items.Add(new BinaryVarsetItem(magic1, magic2, magic3, name, string2, magic4, magic5, magic6, magic7));
+        }
+
+        return new BinaryVarsetFile(count, items);
+    }
+}