Module: Alchemist::ServerHandler::Methods

Includes:
EventMachine::Protocols::LineProtocol
Defined in:
lib/alchemist-server/server_handler.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/alchemist-server/server_handler.rb', line 46

def name
  @name
end

Instance Method Details

#post_init ⇒ Object 



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# File 'lib/alchemist-server/server_handler.rb', line 48

def post_init
  connections << self
  send_line "Welcome alchemical friend. What is your name?"
end

#process_line(line) ⇒ Object 



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# File 'lib/alchemist-server/server_handler.rb', line 69

def process_line(line)
  if name
    command = "#{name} #{line.chomp}"
    outcome = Alchemist::Server.run_append command,
                                           world_file,
                                           history

    self.history = outcome.new_history if outcome.new_history

    if command = outcome.nearby_avatar_command
      run_command_nearby command
    end

    outcome.response
  else
    possible_name = line.strip.split(' ').first

    if possible_name && possible_name.length > 0
      @name = possible_name
      "hello #{name}"
    else
      "Please tell me your name."
    end
  end
rescue => e
  show_error e
  "error #{e}"
end

#receive_line(line) ⇒ Object 



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# File 'lib/alchemist-server/server_handler.rb', line 57

def receive_line(line)
  t = Benchmark.realtime do
    response = process_line line

    if response
      send_line response
    end
  end

  puts "#{Time.now} #{line.split(' ').first} #{(t*1000).round}"
end

#run_command_nearby(command) ⇒ Object 



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# File 'lib/alchemist-server/server_handler.rb', line 98

def run_command_nearby(command)
  new_nearby = history.world.nearby_avatar_names name
  old_nearby = begin
                 history.prior_world.try :nearby_avatar_names, name
               rescue
                 # bail out if user wasn't in prior world
                 []
               end

  nearby = new_nearby | (old_nearby || [])

  connections.select do |c|
    begin
      if nearby.include? c.name
        c.run_unrecorded_command command
      end
    rescue => e
      show_error e
    end
  end
end

#run_unrecorded_command(command) ⇒ Object 



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# File 'lib/alchemist-server/server_handler.rb', line 125

def run_unrecorded_command(command)
  outcome = command.run name, history

  if r = outcome.response
    send_line r
  end
end

#send_line(data) ⇒ Object 



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# File 'lib/alchemist-server/server_handler.rb', line 133

def send_line(data)
  send_data data

  if data[-1] != "\n"
    send_data "\n"
  end
end

#show_error(e) ⇒ Object 



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# File 'lib/alchemist-server/server_handler.rb', line 120

def show_error(e)
  $stderr.puts "#{e.class}: #{e.message}"
  $stderr.puts e.backtrace
end

#unbind ⇒ Object 



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# File 'lib/alchemist-server/server_handler.rb', line 53

def unbind
  connections.delete self
end