Class: Zheng::Rating

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rating) ⇒ Rating

Returns a new instance of Rating.



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# File 'lib/zheng/rating.rb', line 3

def initialize(rating)
  @rating = rating.respond_to?(:match) ? from_rank(rating) : rating.to_i
end

Class Method Details

.is_rank?(string) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zheng/rating.rb', line 36

def self.is_rank? string
  return false unless string.respond_to? :match
  return false unless string.match /\d+(k|d)/
  return true
end

Instance Method Details

#+(other) ⇒ Object 



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# File 'lib/zheng/rating.rb', line 24

def + other
  self.class.new(@rating + other.to_i)
end

#==(other) ⇒ Object 



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# File 'lib/zheng/rating.rb', line 28

def == other
  @rating == other.to_i
end

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zheng/rating.rb', line 32

def eql? other
  @rating == other.to_i
end

#from_rank(rank) ⇒ Object 



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# File 'lib/zheng/rating.rb', line 7

def from_rank(rank)
  parts = rank.match(/(\d+)(k|d)/)
  return 2000 + (parts[1].to_i * 100) if parts[2] == 'd'
  return 2100 - (parts[1].to_i * 100) if parts[2] == 'k'
  raise "Invalid rank"
end

#rank ⇒ Object 



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# File 'lib/zheng/rating.rb', line 18

def rank
  level = (@rating / 100.0).round
  return (level - 20).to_s + 'd' if level > 20
  return (21 - level).to_s + 'k'
end

#to_i ⇒ Object 



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# File 'lib/zheng/rating.rb', line 14

def to_i
  @rating
end