Class: TwistyPuzzles::SkewbMove

Inherits:
AbstractMove show all
Defined in:
lib/twisty_puzzles/skewb_move.rb

Overview

Base class for skewb moves.

Constant Summary

Constants inherited from AbstractMove

AbstractMove::AXES, AbstractMove::MOVE_METRICS, AbstractMove::SLICE_FACES, AbstractMove::SLICE_NAMES

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from AbstractMove

#<=>, #can_swap?, check_move_metric, #decide_meaning, #eql?, #equivalent?, #equivalent_internal?, #hash, #identity?, #inverse, #join_with_cancellation, #move_count, #prepend_inner_m_slice_move, #prepend_slice_move, #swap, #swap_internal

Methods included from Utils::ArrayHelper

#apply_permutation, #check_types, #find_only, #only, #replace_once, #rotate_out_nils, #turned_equals?

Methods included from Utils::StringHelper

#camel_case_to_snake_case, #format_time, #simple_class_name, #snake_case_class_name

Constructor Details

#initialize(axis_corner, direction) ⇒ SkewbMove

Returns a new instance of SkewbMove.

Raises:

  • (TypeError) 


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# File 'lib/twisty_puzzles/skewb_move.rb', line 11

def initialize(axis_corner, direction)
  raise TypeError unless axis_corner.is_a?(Corner)
  raise TypeError unless direction.is_a?(SkewbDirection)

  super()
  @axis_corner = axis_corner.rotate_face_up(axis_corner.faces.min_by(&:piece_index))
  @direction = direction
end

Instance Attribute Details

#axis_corner ⇒ Object (readonly)

Returns the value of attribute axis_corner.



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# File 'lib/twisty_puzzles/skewb_move.rb', line 24

def axis_corner
  @axis_corner
end

#direction ⇒ Object (readonly)

Returns the value of attribute direction.



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# File 'lib/twisty_puzzles/skewb_move.rb', line 24

def direction
  @direction
end

Instance Method Details

#identifying_fields ⇒ Object 



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# File 'lib/twisty_puzzles/skewb_move.rb', line 34

def identifying_fields
  [@axis_corner, @direction]
end

#mirror(normal_face) ⇒ Object 



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# File 'lib/twisty_puzzles/skewb_move.rb', line 51

def mirror(normal_face)
  faces = @axis_corner.adjacent_faces
  replaced_face = find_only(faces) { |f| f.same_axis?(normal_face) }
  new_corner =
    Corner.between_faces(replace_once(faces, replaced_face, replaced_face.opposite))
  self.class.new(new_corner, @direction.inverse)
end

#puzzles ⇒ Object 



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# File 'lib/twisty_puzzles/skewb_move.rb', line 20

def puzzles
  [Puzzle::SKEWB]
end

#rotate_by(rotation) ⇒ Object 



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# File 'lib/twisty_puzzles/skewb_move.rb', line 38

def rotate_by(rotation)
  nice_face =
    find_only(@axis_corner.adjacent_faces) do |f|
      f.same_axis?(rotation.axis_face)
    end
  nice_direction = rotation.translated_direction(nice_face)
  nice_face_corners = nice_face.clockwise_corners
  on_nice_face_index = nice_face_corners.index { |c| c.turned_equals?(@axis_corner) }
  new_corner =
    nice_face_corners[(on_nice_face_index + nice_direction.value) % nice_face_corners.length]
  self.class.new(new_corner, @direction)
end

#slice_move? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/twisty_puzzles/skewb_move.rb', line 30

def slice_move?
  false
end

#to_s ⇒ Object 



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# File 'lib/twisty_puzzles/skewb_move.rb', line 26

def to_s
  "#{@axis_corner}#{@direction.name}"
end