Class: TryRuby::Script

Inherits:
Object
  • Object
show all
Defined in:
lib/try_ruby/script.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename) ⇒ Script

Returns a new instance of Script.



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# File 'lib/try_ruby/script.rb', line 5

def initialize(filename)
  @position = 0

  @script = JSON.parse(File.read(filename))
end

Instance Attribute Details

#position ⇒ Object (readonly)

Returns the value of attribute position.



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# File 'lib/try_ruby/script.rb', line 3

def position
  @position
end

Instance Method Details

#continue? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/try_ruby/script.rb', line 25

def continue?
  current_message.continue?
end

#current_message ⇒ Object Also known as: current 



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# File 'lib/try_ruby/script.rb', line 15

def current_message
  messages[@position]
end

#first? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/try_ruby/script.rb', line 41

def first?
  @position == 0
end

#intro ⇒ Object 



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# File 'lib/try_ruby/script.rb', line 29

def intro
  messages.first
end

#last? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/try_ruby/script.rb', line 37

def last?
  @position == (length-1)
end

#length ⇒ Object 



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# File 'lib/try_ruby/script.rb', line 21

def length
  messages.length
end

#messages ⇒ Object 



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# File 'lib/try_ruby/script.rb', line 11

def messages
  @messages ||= @script["messages"].map {|attributes| Message.new(attributes)}
end

#next ⇒ Object 



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# File 'lib/try_ruby/script.rb', line 45

def next
  @position += 1 unless last?
  current
end

#outro ⇒ Object 



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# File 'lib/try_ruby/script.rb', line 33

def outro
  messages.last
end

#previous ⇒ Object 



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# File 'lib/try_ruby/script.rb', line 50

def previous
  @position -= 1 unless first?
  current
end