Added basic dialogs, added 'blindman' implementation of TACNET networking code, added font

lib/tacnet/packet.rb

@@ -0,0 +1,89 @@
+module TAC
+  class TACNET
+    class Packet
+      PROTOCOL_VERSION = "0"
+      PROTOCOL_HEADER_SEPERATOR = "|"
+      PROTOCOL_HEARTBEAT = "heartbeat"
+
+      PACKET_TYPES = {
+        handshake: 0,
+        heartbeat: 1,
+        dump_config: 2,
+
+        add_group: 3,
+        update_group: 4,
+        delete_group: 5,
+
+        add_action: 6,
+        update_action: 7,
+        delete_action: 8,
+
+        add_variable: 9,
+        update_variable: 10,
+        delete_variable: 11,
+      }
+
+      def self.from_stream(message)
+        slice = message.split("|", 4)
+
+        if slice.size < 4
+          warn "Failed to split packet along first 4 " + PROTOCOL_HEADER_SEPERATOR + ". Raw return: " + Arrays.toString(slice)
+          return nil
+        end
+
+        if slice.first != PROTOCOL_VERSION
+          warn "Incompatible protocol version received, expected: " + PROTOCOL_VERSION + " got: " + slice.first
+          return nil
+        end
+
+        unless valid_packet_type?(Integer(slice[1]))
+          warn "Unknown packet type detected: #{slice[1]}"
+          return nil
+        end
+
+        version = slice[0]
+        type = PACKET_TYPES.key(Integer(slice[1]))
+        content_length = Integer(slice[2])
+        content = slice[3]
+
+        return Packet.new(version, type, content_length, body)
+      end
+
+      def self.create(packet_type, body)
+        Packet.new(PROTOCOL_VERSION, packet_type, body.length, body)
+      end
+
+      def self.valid_packet_type?(packet_type)
+        PACKET_TYPES.values.find { |t| t == packet_type }
+      end
+
+      attr_reader :version, :type, :content_length, :body
+      def initialize(version, type, content_length, body)
+        @version = version
+        @type = type
+        @content_length = content_length
+        @body = body
+      end
+
+      def encode_header
+        string = ""
+        string += PROTOCOL_VERSION
+        string += PROTOCOL_HEADER_SEPERATOR
+        string += packet_type
+        string += PROTOCOL_HEADER_SEPERATOR
+        string += content_length
+        string += PROTOCOL_HEADER_SEPERATOR
+
+        return string
+      end
+
+      def valid?
+        true
+      end
+
+      def to_s
+        "#{encode_header}#{body}"
+      end
+    end
+  end
+end