run multiple sessions to find out long term winnings

roulette.rb

@@ -55,11 +55,18 @@ class Roulette
       @sets[:z].insert(2, 5)
     end
 
-    @rng = @options[:seed] ? Random.new(@options[:seed]) : Random.new
-
     # generated numbers are from 0 to max
     @max = @options[:style] == 'American' ? 38 : 37
 
+    total_per_number = 0
+    @net_profits = BettingSequence.map do |n|
+      total_per_number += n
+      36 * n - 7 * total_per_number
+    end
+    @snake_penalty = 7 * total_per_number
+  end
+
+  def simulate
     @set_status = {}
     Sets.keys.each do |key|
       @set_status[key] = {
@@ -71,19 +78,11 @@ class Roulette
       }
     end
 
-    total_per_number = 0
-    @net_profits = BettingSequence.map do |n|
-      total_per_number += n
-      36 * n - 7 * total_per_number
-    end
-    @snake_penalty = 7 * total_per_number
-  end
-
-  def simulate
     @results = []
     @counts = Hash.new { 0 }
+    @rng = @options[:seed] ? Random.new(@options[:seed]) : Random.new
 
-    @options[:iterations].times do
+    @options[:spins].times do
       result = spin
       record(result) if @options[:record]
       if @results.length % 100_000 == 0
@@ -92,7 +91,7 @@ class Roulette
         print '.'
       end
     end
-    puts
+    puts if @results.length >= 10_000
   end
 
   def spin

simulate.rb

@@ -7,44 +7,62 @@ require './roulette'
 
 def main
   options = Trollop::options do
-    opt :style, "American or European", :short => 's', :type => String, :default => 'American'
-    opt :iterations, "Number of iterations", :short => 'i', :type => :int, :default => 120
+    opt :style, "American or European", :type => String, :default => 'American'
+    opt :spins, "Number of spins", :short => 'n', :type => :int, :default => 60
     opt :database, "Filename for results database", :type => String, :default => File.expand_path("~/Projects/Mystery7/results.sqlite")
     opt :record, "Record results", :short => 'r'
     opt :seed, "Seed for the RNG", :type => :int
+    opt :sessions, "Number of sessions to simulate", :short => 's', :type => :int, :default => 100
     opt :misses, "Number of misses before sleeping", :short => 'm', :default => 4
     opt :verbose, "Print stats after each spin", :short => 'v'
   end
 
-  article = options[:style] == 'American' ? 'an' : 'a'
-  puts ">>> Simulating #{article} #{options[:style]} style game with #{options[:iterations]} iterations, sleeping after #{options[:misses]} miss#{options[:misses] > 0 ? 'es' : ''}..."
+  puts ">>> Simulating #{options[:sessions]} #{options[:style]} style games of #{options[:spins]} spins, sleeping after #{options[:misses]} miss#{options[:misses] > 0 ? 'es' : ''}..."
 
-  roulette = Roulette.new(options)
+  roulette = Roulette.new(options.dup)
 
-  puts ">>> Seed: #{roulette.seed}"
+  # puts ">>> Seed: #{roulette.seed}"
 
-  roulette.simulate
-
-  status = {
+  overall_status = {
     :net => 0,
-    :sequence => 0,
-    :sleeping => true,
     :snakes => 0,
     :wins => 0
   }
 
-  Roulette::Sets.each do |letter, set|
-    puts "# of #{letter.to_s.upcase}s: #{roulette.counts[letter]}" if options[:verbose]
-    set_status = roulette.set_status[letter]
-    puts "status: #{set_status.inspect}" if options[:verbose]
-    status[:net] += set_status[:net]
-    status[:snakes] += set_status[:snakes]
-    status[:wins] += set_status[:wins]
+  options[:sessions].times do
+
+    roulette.simulate
+
+    status = {
+      :net => 0,
+      :snakes => 0,
+      :wins => 0
+    }
+
+    Roulette::Sets.each do |letter, set|
+      puts "# of #{letter.to_s.upcase}s: #{roulette.counts[letter]}" if options[:verbose]
+      set_status = roulette.set_status[letter]
+      puts "status: #{set_status.inspect}" if options[:verbose]
+      status[:net] += set_status[:net]
+      status[:snakes] += set_status[:snakes]
+      status[:wins] += set_status[:wins]
+    end
+
+    overall_status[:net] += status[:net]
+    overall_status[:snakes] += status[:snakes]
+    overall_status[:wins] += status[:wins]
+
+    if options[:verbose]
+      puts "Net profit: #{status[:net]}"
+      puts "Wins: #{status[:wins]}"
+      puts "Snakes: #{status[:snakes]}"
+    end
+
   end
 
-  puts "Net profit: #{status[:net]}"
-  puts "Wins: #{status[:wins]}"
-  puts "Snakes: #{status[:snakes]}"
+  puts "Net profit: #{overall_status[:net]}"
+  puts "Wins: #{overall_status[:wins]}"
+  puts "Snakes: #{overall_status[:snakes]}"
 
   puts ">>> Results are in #{options[:database]}." if options[:record]
 end