Class: Codebreaker::Game

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

Constant Summary collapse

MAX_SCORE = 
500
MAX_ROUNDS = 
500
CODE_LENGTH = 
4
ROUND_PENALTY = 
10
HINT_PENALTY = 
50

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Game

Returns a new instance of Game.



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# File 'lib/codebreaker/game.rb', line 11

def initialize
  @secret_code = ''
  @round_number = 0
  @gues_results = {}
  @game_status = 'play'
  @hint_val = ''
end

Instance Attribute Details

#game_status ⇒ Object (readonly)

Returns the value of attribute game_status.



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# File 'lib/codebreaker/game.rb', line 9

def game_status
  @game_status
end

#gues_results ⇒ Object (readonly)

Returns the value of attribute gues_results.



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# File 'lib/codebreaker/game.rb', line 9

def gues_results
  @gues_results
end

#hint_val ⇒ Object (readonly)

Returns the value of attribute hint_val.



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# File 'lib/codebreaker/game.rb', line 9

def hint_val
  @hint_val
end

#round_number ⇒ Object (readonly)

Returns the value of attribute round_number.



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# File 'lib/codebreaker/game.rb', line 9

def round_number
  @round_number
end

Instance Method Details

#check(gues) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/codebreaker/game.rb', line 25

def check (gues)
  raise ArgumentError, 'argument length must be equal 4' unless gues.to_s.length == CODE_LENGTH
  raise ArgumentError, 'argument must contain only numbers from 1 to 6' unless gues.to_s[/[1-6]+/].length == CODE_LENGTH
  
  pluses = minuses = '' 
  sc_array = @secret_code.split('')
  gues_array = gues.to_s.split('')

  gues_array.each_with_index do |val, index|
    if (val == sc_array[index]) 
      sc_array[index] = '0'
      gues_array[index] = '+'
      pluses += '+'
    end
  end

  gues_array.each do |val|
    if (sc_array.include?(val))
      sc_array[sc_array.find_index(val)] = '-'
      minuses += '-'
    end
  end
  result = pluses + minuses
  @gues_results[gues.to_s] = result
  @round_number += 1
  @game_status = 'win' if result == '++++'
  @game_status = 'loose' if @round_number >= MAX_ROUNDS
  result
end

#hint ⇒ Object 



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# File 'lib/codebreaker/game.rb', line 55

def hint
  if @hint_val.to_s.empty?
    @hint_val = ''
    hint_pos = Random.rand(CODE_LENGTH);
    hint_pos.times {@hint_val += '*'}
    @hint_val += @secret_code[hint_pos].to_s
    (CODE_LENGTH - hint_pos - 1).times {@hint_val += '*'}
  end
  @hint_val
end

#score ⇒ Object 



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# File 'lib/codebreaker/game.rb', line 66

def score
  hints_used = 0
  hints_used = 1 unless @hint_val.empty?
  MAX_SCORE - hints_used*HINT_PENALTY - @round_number*ROUND_PENALTY
end

#start ⇒ Object 



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# File 'lib/codebreaker/game.rb', line 19

def start
  CODE_LENGTH.times {
  	@secret_code += (Random.rand(6) + 1).to_s
  } if @secret_code.empty?
end