#  RAGI -- Ruby Asterisk Gateway Interface

#  See http://rubyforge.org/projects/ragi/ for more information.

#  Sponsored by Snapvine, Inc (www.snapvine.com)

#

#  Class:  SimonHandler

#  Description:  this call handler implements a simple memory game over the phone.

#

 

require 'ragi/call_handler'

 

class SimonHandler < RAGI::CallHandler

  APP_NAME = 'simon'

   

    # When the RAGI server connects from Asterisk to our app

    def dialup

      answer  # answer the call

      wait(1)  # give it 1 seconds to make sure the connection is established

     

     

      playAgain = true

      while (playAgain)

        instructions        # tell the caller how to play the game

        score = play_game   # start the game and play it

        announce_score(score)        # tell them how they did

        playAgain = ask_play_again   # ask if they want to play again

      end

      say_goodbye

      hang_up  #end the call

    end

   

    def instructions

      play_sound("simon-welcome")

    end

   

    def play_game 

     

      intArray = [rand(10)]

      score = 0

     

      # test the user's memory on the current int array

      while memory_test(intArray)

        score += 1

       

        # grow the array by one digit  

        intArray << rand(10) # choose a number between 0 and 9 inclusive

       

        wait(1)

      end

 

      score

    end

   

    def memory_test(intArray)

      # say each number in the array

      intArray.each do |number|

        play_sound("simon-#{number}")  # there are sounds like simon-6.gsm

      end

     

      # listen for user key presses

      # Note:  give about 1 second per key press (intArray.length * 1500)

      resultStr = get_data("simon-beep", (intArray.length * 1500), intArray.length)

     

      # Check if what they entered matches the int array

      if (resultStr == intArray.join("")) 

        return true  

      else

        play_sound("simon-gameover")

        return false

      end 

    end

   

    def announce_score(score)

      if (score <= 9)

        play_sound("simon-score")

        play_sound("simon-#{score.to_s}")

      end

      if (score < 5)

        play_sound("simon-low")

      elsif (score < 10)

        play_sound("simon-medium")

      else

        play_sound("simon-high")

      end

    end

   

    def ask_play_again

      # Give the user three seconds to press a digit

      return (get_data("simon-again", 3000, 1).length > 0)

    end

   

    def say_goodbye

      play_sound("simon-goodbye")

    end

  end