From 1ca7f925267210492221078a97a92db4301b8f67 Mon Sep 17 00:00:00 2001
From: Tim Carey-Smith <tim@spork.in>
Date: Thu, 21 Aug 2008 00:57:43 -0700
Subject: [PATCH] Add the N times M foursquare example

---
 n-times-m-foursquare/lib/player.rb | 62 ++++++++++++++++++++++++++++++
 n-times-m-foursquare/lib/round.rb  | 34 ++++++++++++++++
 n-times-m-foursquare/play.rb       | 38 ++++++++++++++++++
 3 files changed, 134 insertions(+)
 create mode 100644 n-times-m-foursquare/lib/player.rb
 create mode 100644 n-times-m-foursquare/lib/round.rb
 create mode 100755 n-times-m-foursquare/play.rb

diff --git a/n-times-m-foursquare/lib/player.rb b/n-times-m-foursquare/lib/player.rb
new file mode 100644
index 0000000..3f82734
--- /dev/null
+++ b/n-times-m-foursquare/lib/player.rb
@@ -0,0 +1,62 @@
+class Player
+  include Dramatis::Actor
+
+  attr_reader :name
+  def initialize(name)
+    @name = name
+    @rounds = []
+    @round_names = []
+    @opponents = []
+  end
+
+  def join(round, round_name)
+    @rounds << round
+    @round_names << round_name
+    @opponents << []
+  end
+  
+  def add(round, opponent)
+    opponents_for(round) << opponent
+  end
+
+  def serve(round)
+    # We ignore the possiblity
+    # of service faults
+    opponent = choose_for(round)
+    release(opponent).volley(round, 1)
+  end
+
+  def volley(round, volleys)
+    # We ignore serve do-overs
+    # We ignore out of bound hits
+    if made_save
+      # we ignore bad hits
+      opponent = choose_for(round)
+      release(opponent).volley(round, volleys + 1)
+    else
+      round.failed(self, volleys)
+    end
+  end
+
+private
+  def made_save
+    rand < 0.99999
+  end
+  
+  def index_for(round)
+    @rounds.index(round)
+  end
+  
+  def round_name_for(round)
+    @round_names[index_for(round)]
+  end
+  
+  def opponents_for(round)
+    @opponents[index_for(round)]
+  end
+  
+  def choose_for(round)
+    o = opponents_for(round)
+    o[rand(o.size)]
+  end
+end
diff --git a/n-times-m-foursquare/lib/round.rb b/n-times-m-foursquare/lib/round.rb
new file mode 100644
index 0000000..7f79793
--- /dev/null
+++ b/n-times-m-foursquare/lib/round.rb
@@ -0,0 +1,34 @@
+class Round
+  include Dramatis::Actor
+
+  def initialize(name, players)
+    actor.refuse :finished?
+    @start_time = Time.now
+    @name = name
+    @players = players
+    puts "START: #{@name} with #{@players.size} players"
+    @players.each do |player|
+      player.join(self, @name)
+      @players.each do |opponent|
+        next if opponent == player
+        player.add(self, opponent)
+      end
+    end
+  end
+  
+  def play
+    release(@players[-1]).serve(self)
+  end
+  
+  def failed(loser, volleys)
+    @end_time = Time.now
+    @loser = loser
+    @volleys = volleys
+    puts "END: #{@name} in #{@end_time - @start_time} seconds"
+    actor.accept :finished?
+  end
+  
+  def finished?
+    !!@loser
+  end
+end
diff --git a/n-times-m-foursquare/play.rb b/n-times-m-foursquare/play.rb
new file mode 100755
index 0000000..9591dba
--- /dev/null
+++ b/n-times-m-foursquare/play.rb
@@ -0,0 +1,38 @@
+#!/usr/bin/env ruby
+
+$:.unshift File.dirname(__FILE__) + '/../dramatis/lib'
+require 'dramatis'
+require 'dramatis/actor'
+require 'set'
+
+$:.unshift File.dirname(__FILE__) + '/lib'
+require 'round'
+require 'player'
+
+players_count = ARGV.shift.to_i
+rounds_count = ARGV.shift.to_i
+puts "Running with #{players_count} players, #{rounds_count} rounds"
+
+players = []
+players_count.times do |i|
+  players << Player.new("player-#{i}")
+end
+puts
+
+rounds = []
+rounds_count.times do |i|
+  set = Set.new
+  (rand(30).to_i + 5).times do
+    set << players[rand(players.size)]
+  end
+  rounds << Round.new("round-#{i}", set.to_a)
+end
+
+rounds.each do |r|
+  r.play
+end
+
+until rounds.all? {|r| r.finished?}
+  puts "Waiting"
+  sleep 1
+end