Added tick tack toe example.

dansimpson · Dec 15, 2009 · 9e5dbb0 · 9e5dbb0
1 parent 020b9c7
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diff --git a/examples/tick_tack_toe.rb b/examples/tick_tack_toe.rb
@@ -0,0 +1,124 @@
+$:.unshift File.dirname(__FILE__) + '/../lib'
+
+require 'rubygems'
+require 'em-websocket-server'
+require 'json'
+require 'uuid'
+
+$games   = {}
+$waiting = nil
+
+class Game < EM::Channel
+
+	attr_accessor :id, :p1, :p2, :current
+
+	def initialize p1, p2
+		super()
+		@id = UUID.new
+		@p1 = p1
+		@p2 = p2
+	end
+
+	def set_turn p
+		@current = p
+		@current.turn!
+	end
+
+	def start!
+		@current = nil
+		toggle
+	end
+
+	def move p, data
+		if @current == p
+			c = @p1 == p ? "x" : "o"
+			@p1.send_move(c, data)
+			@p2.send_move(c, data)
+			toggle
+		end
+	end
+
+	def toggle
+		set_turn(@current == @p1 ? @p2 : @p1)
+	end
+end
+
+class TickTackToeServer < WebSocketServer
+
+	attr_accessor :game_id
+
+	def on_connect
+	end
+
+	def on_disconnect
+		if $games.key?(game_id)
+			$games.delete!(game_id)
+		end
+	end
+
+	def on_receive data
+
+		puts data
+
+		begin
+			msg = JSON.parse(data)
+		rescue
+			send_command "error"
+			return
+		end
+
+		case msg["msg"]
+		when "join"
+			if $waiting.empty?
+				$waiting.push(self)
+				send_command "queued"
+			else
+				$waiting.pop do |opponent|
+					game = Game.new(self, opponent)
+					self.game_id = opponent.game_id = game.id
+					game.start!
+				end
+			end
+		when "move"
+			if game
+				game.move self, msg["data"]
+
+			else
+				log "Cannot move on a nil game!"
+			end
+		end
+	end
+
+	def game
+		$games[game_id]
+	end
+
+	def turn!
+		send_command "turn"
+	end
+
+	def game_over!
+		send_command "game_over"
+	end
+
+	def start!
+		send_command "start"
+	end
+
+	def send_move key, data
+
+	end
+
+	def send_command cmd
+		send_message({:msg => cmd}.to_json)
+	end
+end
+
+
+EM.epoll
+EM.set_descriptor_table_size(10240)
+
+EM.run do
+	$waiting = EM::Queue.new
+	EM.start_server "0.0.0.0", 8000, TickTackToeServer
+end
diff --git a/examples/ticktacktoe.html b/examples/ticktacktoe.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<html>
+<head>
+	<title>em-websocket-server test</title>
+</head>
+<body>
+
+<h1>em-websocket-server timesync demo</h1>
+<h2 id="time">opening socket</h2>
+
+<script>
+	var webSocket = new WebSocket('ws://192.168.0.2:8000/time');
+
+	webSocket.onopen = function(event){
+		document.getElementById('time').innerHTML = 'waiting for socket';
+		webSocket.send("{\"msg\":\"join\"}");
+	};
+
+	webSocket.onmessage = function(event){
+		var object = JSON.parse(event.data);
+		console.log(object);
+		document.getElementById('time').innerHTML = object.time;
+	};
+
+	webSocket.onclose = function(event){
+		document.getElementById('time').innerHTML = 'socket closed';
+	};
+</script>
+
+</body>
+</html>