Module: StatisticsHelper

Defined in:
lib/statistics_helper.rb

Constant Summary collapse

SYMBOLS =

An array of all the symbols to be availble to the user

['#', '`', '%', '&', '[', '{', '}', '(', '=', '*', ')', '+', ']', '!', '|', '-', '_', '@', '^', '/', '?', '<', '>', '$', '~', ';', ':'].freeze

Class Method Summary collapse

Class Method Details

.add_symbols_to_hash ⇒ Object

This is called when there is no data stored in the JSON file. It outputs a hash with all the symbols and sets all values to 0



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# File 'lib/statistics_helper.rb', line 45

def self.add_symbols_to_hash
  typing_statistics = {}
  SYMBOLS.each do |item|
    typing_statistics[item] = [0, 0, 0, 0, 0]
  end
  typing_statistics
end

.create_symbol_array ⇒ Object

create a randomized array of symbols to guess



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

def self.create_symbol_array
  randomized_array = []
  # choose a random symbol out of the array and append to a new array.
  15.times do
    randomized_array << SYMBOLS.sample
  end
  # ensure that all elements in the array are unique
  randomized_array
end

.create_targeted_array ⇒ Object

This is a method to get the last 8 keys from the user to make into a new array for targeted practice



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# File 'lib/statistics_helper.rb', line 19

def self.create_targeted_array
  worst_key_array = []
  # Read the users statistics from the file, if there is no data in the file, create an object with 0 as values
  begin
    typing_statistics = TypingStatistics.new.read_statistics
  rescue JSON::ParserError
    typing_statistics = add_symbols_to_hash
  end
  # Get the last 8 hash elements (The users worst keys), by revesing hash and getting the first 8 elements
  worst_keys = typing_statistics.reverse_each.to_h.first(8)
  worst_keys.each do |key|
    worst_key_array << key[0]
  end
  worst_key_array
end

.randomized_targeted_array ⇒ Object

This method creates a randomized array with the worst 8 keys, all represented 3 times and shuffled.



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# File 'lib/statistics_helper.rb', line 36

def self.randomized_targeted_array
  randomized_array = []
  3.times do
    randomized_array << create_targeted_array.shuffle
  end
  randomized_array.flatten
end