Class: Karel::FreeSquare

Inherits:
Square
  • Object
show all
Defined in:
lib/karel/square.rb

Overview

A square that can hold a beeper, or Karel.

Instance Method Summary collapse

Constructor Details

#initialize(beeper = false) ⇒ FreeSquare

Returns a new instance of FreeSquare.



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# File 'lib/karel/square.rb', line 7

def initialize(beeper=false)
  @beeper = beeper
end

Instance Method Details

#beeper? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/karel/square.rb', line 13

def beeper?; @beeper; end

#pick_beeper ⇒ Object

Raises:



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# File 'lib/karel/square.rb', line 15

def pick_beeper
  raise NoBeeper unless beeper?
  @beeper = false
end

#put_beeper ⇒ Object

Raises:



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# File 'lib/karel/square.rb', line 20

def put_beeper
  raise SquareOccupied if beeper?
  @beeper = true
end

#to_s ⇒ Object 



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# File 'lib/karel/square.rb', line 25

def to_s
  if beeper?
    "B"
  else
    " "
  end
end

#wall? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/karel/square.rb', line 11

def wall?; false; end