Added rubocop config, more work on CyberarmEngine Netcode; basic sending and receiving of packets is now functional

lib/networking/backend/packets/reliable_packet.rb

@@ -0,0 +1,32 @@
+module CyberarmEngine
+  module Networking
+    class ReliablePacket
+      attr_reader :message, :type, :control_type
+
+      HEADER_PACKER = "Cn"
+      HEADER_LENGTH = 1 + 2 # bytes
+
+      def self.decode(raw_message)
+        header = raw_message.unpack(HEADER_PACKER)
+        message = raw_message[HEADER_LENGTH..raw_message.length - 1]
+
+        ReliablePacket.new(type: header[0], control_type: header[1], message: message)
+      end
+
+      def initialize(sequence_number:, message:, type: Protocol::PACKET_RELIABLE)
+        @type = type
+        @sequence_number = sequence_number
+        @message = message
+      end
+
+      def encode
+        header = [
+          @type,
+          @control_type
+        ].pack(HEADER_PACKER)
+
+        "#{header}#{@message}"
+      end
+    end
+  end
+end