Added tune params but wasn't able to test it yet

So this code does not work 100% but I will continue
when i figure out how to make the server actually send it

lib/snapshot/items/tune_params.rb

@@ -0,0 +1,90 @@
+# frozen_string_literal: true
+
+require_relative '../../packer'
+
+class NetObj
+  class TuneParams
+    attr_accessor :tune_params
+    attr_reader :notes, :name, :id
+
+    def initialize(hash_or_raw)
+      @field_names = [:tune_params]
+      @fields = @field_names.map do |_|
+        0
+      end
+      @size = @fields.count
+      @name = self.class.name
+      @notes = [] # hexdump annotation notes
+      if hash_or_raw.instance_of?(Hash)
+        init_hash(hash_or_raw)
+      elsif hash_or_raw.instance_of?(Unpacker)
+        init_unpacker(hash_or_raw)
+      else
+        init_raw(hash_or_raw)
+      end
+    end
+
+    def validate
+      @fields.select(&:nil?).empty?
+    end
+
+    def init_unpacker(u)
+      @id = u.get_int
+      p = u.parsed.last
+      @notes.push([:cyan, p[:pos], p[:len], "id=#{@id}"])
+      i = 0
+      @fields.map! do |_|
+        # TODO: as of right now it can get nil values here
+        #       the fix would be "u.get_int || 0"
+        #       but fixing it would probably make it harder
+        #       to debug invalid data
+        #
+        #       but do rethink this in a later point please :)
+        #       for now call .validate() everywhere
+        val = u.get_int
+
+        p = u.parsed.last
+        color = (i % 2).zero? ? :yellow : :pink
+        desc = @field_names[i]
+        @notes.push([color, p[:pos], p[:len], "#{desc}=#{val}"])
+        i += 1
+
+        val
+      end
+    end
+
+    def init_raw(data)
+      u = Unpacker.new(data)
+      init_unpacker(u)
+    end
+
+    def init_hash(attr)
+      @fields_names.each do |name|
+        instance_variable_set("@#{name}", attr[name] || 0)
+      end
+    end
+
+    def to_h
+      hash = {}
+      hash[:id] = @id
+      @field_names.each_with_index do |name, index|
+        hash[name] = @fields[index]
+      end
+      hash
+    end
+
+    # basically to_network
+    # int array the server sends to the client
+    def to_a
+      arr = []
+      @fields.each do |value|
+        arr += Packer.pack_int(value)
+      end
+      arr
+    end
+
+    def to_s
+      to_h
+    end
+  end
+end