Class: TwistyPuzzles::MoveTypeCreator

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

Overview

Class for creating one move type from its parts. Helper class for parsing logic.

Instance Method Summary collapse

Constructor Details

#initialize(capture_keys, move_class) ⇒ MoveTypeCreator

Returns a new instance of MoveTypeCreator.

Raises:

  • (TypeError) 


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# File 'lib/twisty_puzzles/move_type_creator.rb', line 7

def initialize(capture_keys, move_class)
  raise TypeError unless move_class.is_a?(Class)
  raise TypeError unless capture_keys.all?(Symbol)

  @capture_keys = capture_keys.freeze
  @move_class = move_class
end

Instance Method Details

#applies_to?(parsed_parts) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/twisty_puzzles/move_type_creator.rb', line 15

def applies_to?(parsed_parts)
  parsed_parts.keys.sort == @capture_keys.sort
end

#create(parsed_parts) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/twisty_puzzles/move_type_creator.rb', line 19

def create(parsed_parts)
  raise ArgumentError unless applies_to?(parsed_parts)

  fields = @capture_keys.map { |name| parsed_parts[name] }
  @move_class.new(*fields)
end