Class: Dice

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

Constant Summary collapse

@@max_dice = 
nil
@@max_sides = 
nil

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(num_of_dice, sides, options = {}) ⇒ Dice

Returns a new instance of Dice.

Raises:

  • (ArgumentError) 


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# File 'lib/lib/dice.rb', line 9

def initialize(num_of_dice,sides, options={})
  options = filter_options(options)
  raise ArgumentError, "Your sides exceeds the maximum number of sides allowed" if @@max_sides && sides > @@max_sides
  raise ArgumentError, "Your dice exceeds the maximum dice allowed" if @@max_dice && num_of_dice > @@max_dice
  @num_of_dice = num_of_dice
  @sides = sides
end

Instance Attribute Details

#num_of_dice ⇒ Object

Returns the value of attribute num_of_dice.



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# File 'lib/lib/dice.rb', line 3

def num_of_dice
  @num_of_dice
end

#sides ⇒ Object

Returns the value of attribute sides.



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# File 'lib/lib/dice.rb', line 3

def sides
  @sides
end

Class Method Details

.max_dice=(value) ⇒ Object 



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

def self.max_dice=( value )
  @@max_dice = value
end

.max_sides=(value) ⇒ Object 



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# File 'lib/lib/dice.rb', line 49

def self.max_sides=( value )
  @@max_sides = value
end

.parse(string) ⇒ Object

Parses a dice string and returns a dice object More documentation to come later

Raises:

  • (ArgumentError) 


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# File 'lib/lib/dice.rb', line 34

def self.parse(string)
  dice_regex = /(?<num_of_dice>\d*)d(?<num_of_sides>\d+)/
  dice = dice_regex.match(string)
  raise ArgumentError, "unable to parse dice string" if dice.nil?
  num_of_dice = dice[:num_of_dice].to_i
  num_of_dice = 1 if num_of_dice == 0
  num_of_sides = dice[:num_of_sides].to_i
  dice = Dice.new(num_of_dice,num_of_sides)
  return dice
end

Instance Method Details

#reroll ⇒ Object 



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# File 'lib/lib/dice.rb', line 26

def reroll
  @results = nil
  return results
end

#results ⇒ Object 



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# File 'lib/lib/dice.rb', line 17

def results
  return @results.inject {|sum,x| sum+=x} if @results
  @results = []
  @num_of_dice.times do
    @results << rand(sides) + 1
  end
  return @results.inject {|sum,x| sum+=x}
end