Add StreamData{Reader/Writer}

MinecraftUSkinEditor/Classes/Utils/StreamDataReader.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PckStudio.Classes.Utils
+{
+    public class StreamDataReader
+    {
+        private static bool isLittleEndian;
+        protected StreamDataReader(bool useLittleEndian)
+        {
+            isLittleEndian = useLittleEndian;
+        }
+
+        protected static string ReadString(Stream stream, int length, Encoding encoding)
+        {
+            byte[] buffer = ReadBytes(stream, length);
+            return encoding.GetString(buffer);
+        }
+
+        protected static byte[] ReadBytes(Stream stream, int count)
+        {
+            byte[] buffer = new byte[count];
+            stream.Read(buffer, 0, count);
+            return buffer;
+        }
+
+        protected static ushort ReadUShort(Stream stream) => (ushort)ReadShort(stream);
+        protected static short ReadShort(Stream stream)
+        {
+            byte[] bytes = ReadBytes(stream, 2);
+            if (BitConverter.IsLittleEndian && !isLittleEndian)
+                Array.Reverse(bytes);
+            return BitConverter.ToInt16(bytes, 0);
+        }
+
+        protected static uint ReadUInt(Stream stream) => (uint)ReadInt(stream);
+        protected static int ReadInt(Stream stream)
+        {
+            byte[] buffer = ReadBytes(stream, 4);
+            if (BitConverter.IsLittleEndian && !isLittleEndian)
+                Array.Reverse(buffer);
+            return BitConverter.ToInt32(buffer, 0);
+        }
+        
+        protected static ulong ReadULong(Stream stream) => (ulong)ReadLong(stream);
+        protected static long ReadLong(Stream stream)
+        {
+            byte[] buffer = ReadBytes(stream, 8);
+            if (BitConverter.IsLittleEndian && !isLittleEndian)
+                Array.Reverse(buffer);
+            return BitConverter.ToInt64(buffer, 0);
+        }
+    }
+}