Class: TresBot::Robot

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Robot

Returns a new instance of Robot.



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# File 'lib/tres_bot.rb', line 12

def initialize
  self.current_position = [0,0]
  self.facing = 'NORTH'
  self.is_on_the_table = false
end

Instance Attribute Details

#current_position ⇒ Object

Returns the value of attribute current_position.



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# File 'lib/tres_bot.rb', line 8

def current_position
  @current_position
end

#facing ⇒ Object

Returns the value of attribute facing.



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# File 'lib/tres_bot.rb', line 9

def facing
  @facing
end

#is_on_the_table ⇒ Object

Returns the value of attribute is_on_the_table.



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# File 'lib/tres_bot.rb', line 10

def is_on_the_table
  @is_on_the_table
end

Instance Method Details

#compass(dir) ⇒ Object 



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# File 'lib/tres_bot.rb', line 34

def compass(dir)
  dir = dir.downcase
  axis = ['north','south'].include?(dir) ? 'y':'x'
  operator = ['north','east'].include?(dir) ? '+' : '-'
  [axis,operator]
end

#left ⇒ Object 



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# File 'lib/tres_bot.rb', line 29

def left
  c = ::CircularList::List.new(['NORTH','EAST','SOUTH','WEST'])
  self.facing = c.fetch_previous(c.index(self.facing))
end

#move ⇒ Object 



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# File 'lib/tres_bot.rb', line 41

def move
  calibration = self.compass(self.facing)
  axis = calibration[0]
  operator = calibration[1]
  if axis == 'x'
    unless (self.current_position[0] == 0 && operator == '-') || (self.current_position[0] == 4 && operator == '+')
      self.current_position[0]=self.current_position[0].to_i.send(operator,1)
    end
  else
    unless (self.current_position[1] == 0 && operator == '-') || (self.current_position[1] == 4 && operator == '+')
      self.current_position[1]=self.current_position[1].to_i.send(operator,1)
    end
  end
end

#place(position) ⇒ Object 



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# File 'lib/tres_bot.rb', line 18

def place(position)
  self.is_on_the_table  = true
  self.current_position = [position[0],position[1]]
  self.facing           = position[2].upcase
end

#report ⇒ Object 



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# File 'lib/tres_bot.rb', line 56

def report
  rep = "#{self.current_position.join(', ')}, #{self.facing}"
  puts rep
  rep
end

#right ⇒ Object 



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# File 'lib/tres_bot.rb', line 24

def right
  c = ::CircularList::List.new(['NORTH','EAST','SOUTH','WEST'])
  self.facing = c.fetch_next(c.index(self.facing))
end