Add benchmarks and a few slight optimizations

Gemfile

@@ -8,6 +8,10 @@ group :development, :production do
   gem 'twitter'
 end
 
+group :benchmark do
+  gem 'json'
+end
+
 group :websocket do
   gem 'json'
   gem 'em-websocket'

benchmarks/worm.rb

@@ -0,0 +1,46 @@
+require 'bundler'
+Bundler.require :benchmark
+
+$:.unshift './../lib'
+require 'cell'
+require 'map'
+require 'worm'
+require 'human'
+require 'benchmark'
+
+def json(command, data)
+  JSON.generate [command, data]
+end
+
+Benchmark.bmbm do |x|
+  x.report('Worm.new') do
+    1000.times do
+      json('id', Object.new.object_id)
+      Worm.new Object.new
+    end
+  end
+
+  x.report('Worm.find+direction') do
+    1000.times do
+      socket = Object.new
+      Worm.new socket
+      Worm.find(socket).direction = '1'.to_i
+    end
+  end
+
+  x.report('Periodic Timer') do
+    10.times do
+      Worm.all.each &:move
+      json = JSON.generate ['render', Map.data]
+      Worm.sockets.map do
+        json
+      end
+    end
+  end
+
+  x.report('Worm.destroy') do
+    1000.times do
+      Worm.destroy Worm.storage.first.first
+    end
+  end
+end

lib/worm.rb

@@ -66,6 +66,10 @@ def self.sockets
     @@worms.keys
   end
 
+  def self.storage
+    @@worms
+  end
+
   #not realized methods yet
 
   def check_availability(cell)

public/javascripts/application.js

@@ -54,16 +54,28 @@ keyboard = {
 
             switch(event.which){
                 case 37:
-                    socket.send(4)
+                    if (keyboard.direction != 4){
+                        keyboard.direction = 4
+                        socket.send(4)
+                    }
                     break
                 case 38:
-                    socket.send(1)
+                    if (keyboard.direction != 1){
+                        keyboard.direction = 1
+                        socket.send(1)
+                    }
                     break
                 case 39:
-                    socket.send(2)
+                    if (keyboard.direction != 2){
+                        keyboard.direction = 2
+                        socket.send(2)
+                    }
                     break
                 case 40:
-                    socket.send(3)
+                    if (keyboard.direction != 3){
+                        keyboard.direction = 3
+                        socket.send(3)
+                    }
                     break
             }
         })