Class: RPiet::DirectionPointer

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

Constant Summary collapse

ASCII_ARROWS = 
['>', 'v', '<', '^']

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DirectionPointer

Returns a new instance of DirectionPointer.



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# File 'lib/rpiet/direction_pointer.rb', line 16

def initialize
  @direction = RPiet::Direction::RIGHT
end

Instance Attribute Details

#direction ⇒ Object (readonly)

Returns the value of attribute direction.



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# File 'lib/rpiet/direction_pointer.rb', line 14

def direction
  @direction
end

Instance Method Details

#ascii ⇒ Object 



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# File 'lib/rpiet/direction_pointer.rb', line 30

def ascii
  ASCII_ARROWS[@direction.value]
end

#inspect ⇒ Object Also known as: to_s 



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# File 'lib/rpiet/direction_pointer.rb', line 34

def inspect
  @direction.inspect
end

#next_possible(x, y) ⇒ Object 



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# File 'lib/rpiet/direction_pointer.rb', line 24

def next_possible(x, y)
  dx, dy = @direction.deltas
  [x + dx, y + dy]
end

#rotate!(amount = 1) ⇒ Object 



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# File 'lib/rpiet/direction_pointer.rb', line 20

def rotate!(amount = 1)
  @direction = @direction.incr amount
end