Folder reorganisation

app/Communication/Packet.cs

@@ -0,0 +1,58 @@
+// Source thanks to https://github.com/vddCore/Starlight :)
+
+namespace Starlight.Communication
+{
+    public abstract class Packet
+    {
+        private int _currentDataIndex = 1;
+
+        public byte[] Data { get; }
+
+        internal Packet(byte reportId, int packetLength, params byte[] data)
+        {
+            if (packetLength < 1)
+            {
+                throw new ArgumentOutOfRangeException(
+                    nameof(packetLength),
+                    "Packet length must be at least 1."
+                );
+            }
+
+            Data = new byte[packetLength];
+            Data[0] = reportId;
+
+            if (data.Length > 0)
+            {
+                if (_currentDataIndex >= Data.Length)
+                {
+                    throw new ArgumentOutOfRangeException(
+                        nameof(data),
+                        "Your packet length does not allow for initial data to be appended."
+                    );
+                }
+
+                AppendData(data);
+            }
+        }
+
+        public Packet AppendData(params byte[] data)
+            => AppendData(out _, data);
+
+        public Packet AppendData(out int bytesWritten, params byte[] data)
+        {
+            bytesWritten = 0;
+
+            for (var i = 0;
+                 i < data.Length && _currentDataIndex < Data.Length - 1;
+                 i++, bytesWritten++, _currentDataIndex++)
+            {
+                if (_currentDataIndex > Data.Length - 1)
+                    break;
+
+                Data[_currentDataIndex] = data[i];
+            }
+
+            return this;
+        }
+    }
+}