Class: Mel::SceneFSM

Inherits:
Object
  • Object
show all
Defined in:
lib/mel/scene-fsm.rb

Instance Method Summary collapse

Instance Method Details

#action ⇒ Object

all states should override this method



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# File 'lib/mel/scene-fsm.rb', line 46

def action = false

#ask_prompt(choices) ⇒ Object 



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# File 'lib/mel/scene-fsm.rb', line 22

def ask_prompt(choices)
  prompt.select("Choose your Path", choices, per_page: choices_per_page)
end

#blank_space ⇒ Object 



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# File 'lib/mel/scene-fsm.rb', line 18

def blank_space
  puts ""
end

#choices ⇒ Object

all states should override this method



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# File 'lib/mel/scene-fsm.rb', line 38

def choices
  []
end

#choices_per_page ⇒ Object 



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# File 'lib/mel/scene-fsm.rb', line 26

def choices_per_page
  20
end

#choose_destination ⇒ Object

display, choices, and action methods all change per-state



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# File 'lib/mel/scene-fsm.rb', line 54

def choose_destination
  if (some_choices = choices)
    blank_space
    display
    blank_space
    ask_prompt(some_choices)
  else
    action
  end
end

#decobox(*lines) ⇒ Object 



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# File 'lib/mel/scene-fsm.rb', line 65

def decobox(*lines)
  lines = lines[0].split("\n") if lines.length == 1
  max_length = lines.map(&:length).max
  puts "+-#{"-" * max_length}-+"
  lines.each do |line|
    num_spacers = max_length - line.length
    puts "| #{line}#{" " * num_spacers} |"
  end
  puts "+-#{"-" * max_length}-+"
end

#display ⇒ Object

all states should override this method



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# File 'lib/mel/scene-fsm.rb', line 43

def display = false

#prompt ⇒ Object 



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# File 'lib/mel/scene-fsm.rb', line 10

def prompt
  @prompt ||= TTY::Prompt.new
end

#spacer ⇒ Object 



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# File 'lib/mel/scene-fsm.rb', line 14

def spacer
  puts "|+--------------------------------------------------------+|"
end

#still_running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mel/scene-fsm.rb', line 48

def still_running?
  true
end

#visit_submachine(machine) ⇒ Object

runs a machine until completion, signaled by still_running? returning false



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# File 'lib/mel/scene-fsm.rb', line 31

def visit_submachine(machine)
  while machine.still_running?
    machine.choose_destination
  end
end