Refactor jsut about everything

9 files changed, 0 insertions, 1138 deletions

diff --git a/python/dotsandboxes/README.md b/python/dotsandboxes/README.md
deleted file mode 100644
index e3f844c..0000000
--- a/python/dotsandboxes/README.md
+++ /dev/null
@@ -1,134 +0,0 @@
-Dots and Boxes application
-==========================
-
-Live demo: https://people.cs.kuleuven.be/wannes.meert/dotsandboxes/play
-
-![Screenshot of Dots and Boxes](https://people.cs.kuleuven.be/wannes.meert/dotsandboxes/screenshot.png?v=2)
-
-This setup is part of the course "Machine Learning: Project" (KU Leuven,
-Faculty of engineering, Department of Computer Science,
-[DTAI research group](https://dtai.cs.kuleuven.be)).
-
-
-Installation
-------------
-
-The example agent is designed for Python 3.6 and requires the
-[websockets](https://websockets.readthedocs.io) package. Dependencies can be
-installed using pip:
-
-    $ pip install -r requirements.txt
-
-
-Start the game GUI
-------------------
-
-This program shows a web-based GUI to play the Dots and Boxes
-game. This supports human-human, agent-human and agent-agent combinations.
-It is a simple Javascript based application that runs entirely in the browser.
-You can start it by opening the file `static/dotsandboxes.html` in a browser.
-Or alternatively, you can start the app using the included simple server:
-
-    $ ./dotsandboxesserver.py 8080
-
-The game can then be played by directing your browser to http://127.0.0.1:8080.
-
-
-Start the agent client
-----------------------
-
-This is the program that runs a game-playing agent. This application listens
-to [websocket](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API)
-requests that communicate game information and sends back the next action it
-wants to play.
-
-Starting the agent client is done using the following command:
-
-    $ ./dotsandboxesagent <port>
-
-This starts a websocket on the given port that can receveive JSON messages.
-
-The JSON messages given below should be handled by your agent.
-Take into account the maximal time allowed to reply.
-
-### Initiate the game
-
-Both players get a message that a new game has started:
-
-    {
-        "type": "start",
-        "player": 1,
-        "timelimit", 0.5,
-        "grid": [5, 5],
-        "game": "123456"
-    }
-
-where `player` is the number assigned to this agent, `timelimit` is the
-time in seconds in which you need to send your action back to the server,
-and `grid` is the grid size in rows and columns.
-
-If you are player 1, reply with the first action you want to perform:
-
-    {
-        "type": "action",
-        "location": [1, 1],
-        "orientation": "v"
-    }
-
-The field `location` is expressed as row and column (zero-based numbering) and
-`orientation` is either "v" (vertical) or "h" (horizontal).
-
-
-### Action in the game
-
-When an action is played, the message sent to both players is:
-
-    {
-        "type": "action",
-        "game": "123456",
-        "player": 1,
-        "nextplayer": 2,
-        "score": [0, 0],
-        "location": [1, 1],
-        "orientation": "v"
-    }
-
-
-If it is your turn you should answer with a message that states your next
-move:
-
-    {
-        "type": "action",
-        "location": [1, 1],
-        "orientation": "v"
-    }
-
-
-### Game end
-
-When the game ends after an action, the message is slightly altered:
-
-    {
-        "type": "end",
-        "game": "123456",
-        "player": 1,
-        "nextplayer": 0,
-        "score": [3, 1],
-        "location": [1, 1],
-        "orientation": "v",
-        "winner": 1
-    }
-
-The `type` field becomes `end` and a new field `winner` is set to the player
-that has won the game.
-
-
-Contact information
--------------------
-
-- Wannes Meert,        https://people.cs.kuleuven.be/wannes.meert
-- Hendrik Blockeel,    https://people.cs.kuleuven.be/hendrik.blockeel
-- Arne De Brabandere,  https://people.cs.kuleuven.be/arne.debrabandere
-- Sebastijan Dumančić, https://people.cs.kuleuven.be/sebastijan.dumancic
-- Pieter Robberechts,  https://people.cs.kuleuven.be/pieter.robberechts
-
diff --git a/python/dotsandboxes/dotsandboxesagent b/python/dotsandboxes/dotsandboxesagent
deleted file mode 100755
index eecf719..0000000
--- a/python/dotsandboxes/dotsandboxesagent
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-# It is not necessary to use a shell script for this. Dropping the .py
-# extension and including the correct shebang is also correct.
-python3 $(dirname "$0")/dotsandboxesagent.py $@
-
diff --git a/python/dotsandboxes/dotsandboxesagent.py b/python/dotsandboxes/dotsandboxesagent.py
deleted file mode 100644
index abf677b..0000000
--- a/python/dotsandboxes/dotsandboxesagent.py
+++ /dev/null
@@ -1,212 +0,0 @@
-#!/usr/bin/env python3
-# encoding: utf-8
-"""
-dotsandboxesagent.py
-
-Template for the Machine Learning Project course at KU Leuven (2017-2018)
-of Hendrik Blockeel and Wannes Meert.
-
-Copyright (c) 2018 KU Leuven. All rights reserved.
-"""
-import sys
-import argparse
-import logging
-import asyncio
-import websockets
-import json
-from collections import defaultdict
-import random
-
-logger = logging.getLogger(__name__)
-games = {}
-agentclass = None
-
-
-class DotsAndBoxesAgent:
-    """Example Dots and Boxes agent implementation base class.
-    It returns a random next move.
-
-    A DotsAndBoxesAgent object should implement the following methods:
-    - __init__
-    - add_player
-    - register_action
-    - next_action
-    - end_game
-
-    This class does not necessarily use the best data structures for the
-    approach you want to use.
-    """
-    def __init__(self, player, nb_rows, nb_cols, timelimit):
-        """Create Dots and Boxes agent.
-
-        :param player: Player number, 1 or 2
-        :param nb_rows: Rows in grid
-        :param nb_cols: Columns in grid
-        :param timelimit: Maximum time allowed to send a next action.
-        """
-        self.player = {player}
-        self.timelimit = timelimit
-        self.ended = False
-        self.nb_rows = nb_rows
-        self.nb_cols = nb_cols
-        rows = []
-        for ri in range(nb_rows + 1):
-            columns = []
-            for ci in range(nb_cols + 1):
-                columns.append({"v": 0, "h": 0})
-            rows.append(columns)
-        self.cells = rows
-
-    def add_player(self, player):
-        """Use the same agent for multiple players."""
-        self.player.add(player)
-
-    def register_action(self, row, column, orientation, player):
-        """Register action played in game.
-
-        :param row:
-        :param columns:
-        :param orientation: "v" or "h"
-        :param player: 1 or 2
-        """
-        self.cells[row][column][orientation] = player
-
-    def next_action(self):
-        """Return the next action this agent wants to perform.
-
-        In this example, the function implements a random move. Replace this
-        function with your own approach.
-
-        :return: (row, column, orientation)
-        """
-        logger.info("Computing next move (grid={}x{}, player={})"\
-                .format(self.nb_rows, self.nb_cols, self.player))
-        # Random move
-        free_lines = []
-        for ri in range(len(self.cells)):
-            row = self.cells[ri]
-            for ci in range(len(row)):
-                cell = row[ci]
-                if ri < (len(self.cells) - 1) and cell["v"] == 0:
-                    free_lines.append((ri, ci, "v"))
-                if ci < (len(row) - 1) and cell["h"] == 0:
-                    free_lines.append((ri, ci, "h"))
-        if len(free_lines) == 0:
-            # Board full
-            return None
-        movei = random.randint(0, len(free_lines) - 1)
-        r, c, o = free_lines[movei]
-        return r, c, o
-
-    def end_game(self):
-        self.ended = True
-
-
-## MAIN EVENT LOOP
-
-async def handler(websocket, path):
-    logger.info("Start listening")
-    game = None
-    # msg = await websocket.recv()
-    try:
-        async for msg in websocket:
-            logger.info("< {}".format(msg))
-            try:
-                msg = json.loads(msg)
-            except json.decoder.JSONDecodeError as err:
-                logger.error(err)
-                return False
-            game = msg["game"]
-            answer = None
-            if msg["type"] == "start":
-                # Initialize game
-                if msg["game"] in games:
-                    games[msg["game"]].add_player(msg["player"])
-                else:
-                    nb_rows, nb_cols = msg["grid"]
-                    games[msg["game"]] = agentclass(msg["player"],
-                                                    nb_rows,
-                                                    nb_cols,
-                                                    msg["timelimit"])
-                if msg["player"] == 1:
-                    # Start the game
-                    nm = games[game].next_action()
-                    print('nm = {}'.format(nm))
-                    if nm is None:
-                        # Game over
-                        logger.info("Game over")
-                        continue
-                    r, c, o = nm
-                    answer = {
-                        'type': 'action',
-                        'location': [r, c],
-                        'orientation': o
-                    }
-                else:
-                    # Wait for the opponent
-                    answer = None
-
-            elif msg["type"] == "action":
-                # An action has been played
-                r, c = msg["location"]
-                o = msg["orientation"]
-                games[game].register_action(r, c, o, msg["player"])
-                if msg["nextplayer"] in games[game].player:
-                    # Compute your move
-                    nm = games[game].next_action()
-                    if nm is None:
-                        # Game over
-                        logger.info("Game over")
-                        continue
-                    nr, nc, no = nm
-                    answer = {
-                        'type': 'action',
-                        'location': [nr, nc],
-                        'orientation': no
-                    }
-                else:
-                    answer = None
-
-            elif msg["type"] == "end":
-                # End the game
-                games[msg["game"]].end_game()
-                answer = None
-            else:
-                logger.error("Unknown message type:\n{}".format(msg))
-
-            if answer is not None:
-                print(answer)
-                await websocket.send(json.dumps(answer))
-                logger.info("> {}".format(answer))
-    except websockets.exceptions.ConnectionClosed as err:
-        logger.info("Connection closed")
-    logger.info("Exit handler")
-
-
-def start_server(port):
-    server = websockets.serve(handler, 'localhost', port)
-    print("Running on ws://127.0.0.1:{}".format(port))
-    asyncio.get_event_loop().run_until_complete(server)
-    asyncio.get_event_loop().run_forever()
-
-
-## COMMAND LINE INTERFACE
-
-def main(argv=None):
-    global agentclass
-    parser = argparse.ArgumentParser(description='Start agent to play Dots and Boxes')
-    parser.add_argument('--verbose', '-v', action='count', default=0, help='Verbose output')
-    parser.add_argument('--quiet', '-q', action='count', default=0, help='Quiet output')
-    parser.add_argument('port', metavar='PORT', type=int, help='Port to use for server')
-    args = parser.parse_args(argv)
-
-    logger.setLevel(max(logging.INFO - 10 * (args.verbose - args.quiet), logging.DEBUG))
-    logger.addHandler(logging.StreamHandler(sys.stdout))
-
-    agentclass = DotsAndBoxesAgent
-    start_server(args.port)
-
-
-if __name__ == "__main__":
-    sys.exit(main())
-
diff --git a/python/dotsandboxes/dotsandboxescompete.py b/python/dotsandboxes/dotsandboxescompete.py
deleted file mode 100644
index ee2aee8..0000000
--- a/python/dotsandboxes/dotsandboxescompete.py
+++ /dev/null
@@ -1,212 +0,0 @@
-#!/usr/bin/env python3
-# encoding: utf-8
-"""
-dotsandboxescompete.py
-
-Template for the Machine Learning Project course at KU Leuven (2017-2018)
-of Hendrik Blockeel and Wannes Meert.
-
-Copyright (c) 2018 KU Leuven. All rights reserved.
-"""
-
-import sys
-import argparse
-import logging
-import asyncio
-import websockets
-import json
-from collections import defaultdict
-import random
-import uuid
-import time
-
-logger = logging.getLogger(__name__)
-
-
-def start_competition(address1, address2, nb_rows, nb_cols, timelimit):
-   asyncio.get_event_loop().run_until_complete(connect_agent(address1, address2, nb_rows, nb_cols, timelimit))
-
-
-async def connect_agent(uri1, uri2, nb_rows, nb_cols, timelimit):
-    cur_game = str(uuid.uuid4())
-    winner = None
-    cells = []
-    cur_player = 1
-    points = [0, 0, 0]
-    timings = [None, [], []]
-
-    for ri in range(nb_rows + 1):
-        columns = []
-        for ci in range(nb_cols + 1):
-            columns.append({"v":0, "h":0, "p":0})
-        cells.append(columns)
-
-    logger.info("Connecting to {}".format(uri1))
-    async with websockets.connect(uri1) as websocket1:
-        logger.info("Connecting to {}".format(uri2))
-        async with websockets.connect(uri2) as websocket2:
-            logger.info("Connected")
-
-            # Start game
-            msg = {
-              "type": "start",
-              "player": 1,
-              "timelimit": timelimit,
-              "game": cur_game,
-              "grid": [nb_rows, nb_cols]
-            }
-            await websocket1.send(json.dumps(msg))
-            msg["player"] = 2
-            await websocket2.send(json.dumps(msg))
-
-            # Run game
-            while winner is None:
-                ask_time = time.time()
-                logger.info("Waiting for player {}".format(cur_player))
-                if cur_player == 1:
-                    msg = await websocket1.recv()
-                else:
-                    msg = await websocket2.recv()
-                recv_time = time.time()
-                diff_time = recv_time - ask_time
-                timings[cur_player].append(diff_time)
-                logger.info("Message received after (s): {}".format(diff_time))
-                try:
-                    msg = json.loads(msg)
-                except json.decoder.JSONDecodeError as err:
-                    logger.debug(err)
-                    continue
-                if msg["type"] != "action":
-                    logger.error("Unknown message: {}".format(msg))
-                    continue
-                r, c = msg["location"]
-                o = msg["orientation"]
-                next_player = user_action(r, c, o, cur_player,
-                                          cells, points,
-                                          nb_rows, nb_cols)
-                if points[1] + points[2] == nb_cols * nb_rows:
-                    # Game over
-                    winner = 1
-                    if points[2] == points[1]:
-                        winner = 0
-                    if points[2] > points[1]:
-                        winner = 2
-                else:
-                    msg = {
-                        "type": "action",
-                        "game": cur_game,
-                        "player": cur_player,
-                        "nextplayer": next_player,
-                        "score": [points[1], points[2]],
-                        "location": [r, c],
-                        "orientation": o
-                    }
-                    await websocket1.send(json.dumps(msg))
-                    await websocket2.send(json.dumps(msg))
-
-                cur_player = next_player
-
-            # End game
-            logger.info("Game ended: points1={} - points2={} - winner={}".format(points[1], points[2], winner))
-            msg = {
-                "type": "end",
-                "game": cur_game,
-                "player": cur_player,
-                "nextplayer": 0,
-                "score": [points[1], points[2]],
-                "location": [r, c],
-                "orientation": o,
-                "winner": winner
-            }
-            await websocket1.send(json.dumps(msg))
-            await websocket2.send(json.dumps(msg))
-
-    # Timings
-    for i in [1, 2]:
-        logger.info("Timings: player={} - avg={} - min={} - max={}"\
-            .format(i,
-                    sum(timings[i])/len(timings[i]),
-                    min(timings[i]),
-                    max(timings[i])))
-
-    logger.info("Closed connections")
-
-
-def user_action(r, c, o, cur_player, cells, points, nb_rows, nb_cols):
-    logger.info("User action: player={} - r={} - c={} - o={}".format(cur_player, r, c, o))
-    next_player = cur_player
-    won_cell = False
-    cell = cells[r][c]
-    if o == "h":
-        if cell["h"] != 0:
-            return cur_player
-        cell["h"] = cur_player
-        # Above
-        if r > 0:
-            if cells[r - 1][c]["v"] != 0 \
-                and cells[r - 1][c + 1]["v"] != 0 \
-                and cells[r - 1][c]["h"] != 0 \
-                and cells[r][c]["h"] != 0:
-                won_cell = True
-                points[cur_player] += 1
-                cells[r - 1][c]["p"] = cur_player
-        # Below
-        if r < nb_rows:
-            if cells[r][c]["v"] != 0 \
-                and cells[r][c + 1]["v"] != 0 \
-                and cells[r][c]["h"] != 0 \
-                and cells[r + 1][c]["h"] != 0:
-                won_cell = True
-                points[cur_player] += 1
-                cells[r][c]["p"] = cur_player
-
-    if o == "v":
-        if cell["v"] != 0:
-            return cur_player
-        cell["v"] = cur_player;
-        # Left
-        if c > 0:
-            if cells[r][c - 1]["v"] != 0 \
-                and cells[r][c]["v"] != 0 \
-                and cells[r][c - 1]["h"] != 0 \
-                and cells[r + 1][c - 1]["h"] != 0:
-                won_cell = True
-                points[cur_player] += 1
-                cells[r][c - 1]["p"] = cur_player
-        # Right
-        if c < nb_cols:
-            if cells[r][c]["v"] != 0 \
-                and cells[r][c + 1]["v"] != 0 \
-                and cells[r][c]["h"] != 0 \
-                and cells[r + 1][c]["h"] != 0:
-                won_cell = True
-                points[cur_player] += 1
-                cells[r][c]["p"] = cur_player
-
-    if not won_cell:
-        next_player = 3 - cur_player
-    else:
-        next_player = cur_player
-        print("Update points: player1={} - player2={}".format(points[1], points[2]))
-    return next_player
-
-
-def main(argv=None):
-    parser = argparse.ArgumentParser(description='Start agent to play Dots and Boxes')
-    parser.add_argument('--verbose', '-v', action='count', default=0, help='Verbose output')
-    parser.add_argument('--quiet', '-q', action='count', default=0, help='Quiet output')
-    parser.add_argument('--cols', '-c', type=int, default=2, help='Number of columns')
-    parser.add_argument('--rows', '-r', type=int, default=2, help='Number of rows')
-    parser.add_argument('--timelimit', '-t', type=float, default=0.5, help='Time limit per request in seconds')
-    parser.add_argument('agents', nargs=2, metavar='AGENT', help='Websockets addresses for agents')
-    args = parser.parse_args(argv)
-
-    logger.setLevel(max(logging.INFO - 10 * (args.verbose - args.quiet), logging.DEBUG))
-    logger.addHandler(logging.StreamHandler(sys.stdout))
-
-    start_competition(args.agents[0], args.agents[1], args.rows, args.cols, args.timelimit)
-
-
-if __name__ == "__main__":
-    sys.exit(main())
-
diff --git a/python/dotsandboxes/dotsandboxesserver.py b/python/dotsandboxes/dotsandboxesserver.py
deleted file mode 100644
index 1b66372..0000000
--- a/python/dotsandboxes/dotsandboxesserver.py
+++ /dev/null
@@ -1,60 +0,0 @@
-#!/usr/bin/env python3
-# encoding: utf-8
-"""
-dotsandboxesserver.py
-
-Template for the Machine Learning Project course at KU Leuven (2017-2018)
-of Hendrik Blockeel and Wannes Meert.
-
-Copyright (c) 2018 KU Leuven. All rights reserved.
-"""
-
-import sys
-import argparse
-import logging
-import http.server
-import socketserver
-import json
-
-logger = logging.getLogger(__name__)
-
-
-class RequestHandler(http.server.SimpleHTTPRequestHandler):
-    def do_GET(self):
-        if self.path == "/":
-            self.send_response(302)
-            self.send_header("Location", "static/dotsandboxes.html")
-            self.end_headers()
-        return super().do_GET()
-
-    def do_PUT(self):
-        response = {
-            'result': 'ok'
-        }
-        self.send_response(200)
-        self.send_header('Content-type', 'application/json')
-        self.end_headers()
-        self.wfile.write(json.dumps(response).encode())
-
-
-def start_server(port):
-    with socketserver.TCPServer(("", port), RequestHandler) as httpd:
-        print("Running on http://127.0.0.1:{}".format(port))
-        httpd.serve_forever()
-
-
-def main(argv=None):
-    parser = argparse.ArgumentParser(description='Start server to play Dots and Boxes')
-    parser.add_argument('--verbose', '-v', action='count', default=0, help='Verbose output')
-    parser.add_argument('--quiet', '-q', action='count', default=0, help='Quiet output')
-    parser.add_argument('port', metavar='PORT', type=int, help='Port to use for server')
-    args = parser.parse_args(argv)
-
-    logger.setLevel(max(logging.INFO - 10 * (args.verbose - args.quiet), logging.DEBUG))
-    logger.addHandler(logging.StreamHandler(sys.stdout))
-
-    start_server(args.port)
-
-
-if __name__ == "__main__":
-    sys.exit(main())
diff --git a/python/dotsandboxes/requirements.txt b/python/dotsandboxes/requirements.txt
deleted file mode 100644
index 14774b4..0000000
--- a/python/dotsandboxes/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-websockets
diff --git a/python/dotsandboxes/static/dotsandboxes.css b/python/dotsandboxes/static/dotsandboxes.css
deleted file mode 100644
index 71b1d3b..0000000
--- a/python/dotsandboxes/static/dotsandboxes.css
+++ /dev/null
@@ -1,10 +0,0 @@
-
-.footer {
-  color: #B3B3B3;
-  margin-bottom: 1ex;
-}
-
-.footer a {
-  color: #87A0B3;
-}
-
diff --git a/python/dotsandboxes/static/dotsandboxes.html b/python/dotsandboxes/static/dotsandboxes.html
deleted file mode 100644
index 4e97508..0000000
--- a/python/dotsandboxes/static/dotsandboxes.html
+++ /dev/null
@@ -1,50 +0,0 @@
-<!DOCTYPE html>
-<html>
-<html lang="en">
-<meta charset="utf-8">
-<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
-<title>Dots and Boxes</title>
-<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
-<link rel="stylesheet" href="dotsandboxes.css">
-</head>
-<body>
-	<div class="container">
-		<h1>Dots and Boxes</h1>
-		<div class="row">
-			<div class="col-md">
-				<div id="playing-area"></div>
-			</div>
-			<div class="col-md">
-				<div class="form-group">
-				<p>Size of game:</p>
-				<div class="input-group">
-				<div class="input-group-prepend">
-				<span class="input-group-text">Rows and Columns</span>
-				</div>
-				<input type="number" class="form-control" id="nb-rows" value=6>
-				<input type="number" class="form-control" id="nb-cols" value=6>
-				</div>
-				</div>
-				<div class="form-group">
-				<p>Players:</p>
-				<div class="input-group mb-3">
-				<div class="input-group-prepend"><span class="input-group-text" id="basic-addon3">Agent 1</span></div>
-				<input type="text" class="form-control" id="agent1" aria-describedby="basic-addon3">
-				</div>
-				<div class="input-group mb-3">
-				<div class="input-group-prepend"><span class="input-group-text" id="basic-addon3">Agent 2</span></div>
-				<input type="text" class="form-control" id="agent2" aria-describedby="basic-addon3">
-				</div>
-				<p>Fill in the address where an agent can be reached using WebSockets (e.g. ws://127.0.0.1:8089).
-				If a field is empty a human player is assumed.
-				</p>
-				<button type="button" class="btn btn-secondary" id="restart-btn">Restart game</button>
-				</div>
-			</div>
-		</div>
-	</div>
-	<script src="https://d3js.org/d3.v4.min.js"></script>
-	<script src="dotsandboxes.js"></script>
-</body>
-</html>
-
diff --git a/python/dotsandboxes/static/dotsandboxes.js b/python/dotsandboxes/static/dotsandboxes.js
deleted file mode 100644
index 11e9447..0000000
--- a/python/dotsandboxes/static/dotsandboxes.js
+++ /dev/null
@@ -1,454 +0,0 @@
-/**
- * dotsandboxes.js
- *
- * Template for the Machine Learning Project course at KU Leuven (2017-2018)
- * of Hendrik Blockeel and Wannes Meert.
- *
- * Copyright (c) 2018 KU Leuven. All rights reserved.
- **/
-
-function generateGuid() {
-  var result, i, j;
-  result = '';
-  for(j=0; j<32; j++) {
-    if( j == 8 || j == 12|| j == 16|| j == 20) 
-      result = result + '-';
-    i = Math.floor(Math.random()*16).toString(16).toUpperCase();
-    result = result + i;
-  }
-  return result;
-}
-
-// GAME LOGIC
-
-var cur_game = generateGuid();
-var cur_player = 1;
-var cur_ended = false;
-var points = [0, 0, 0];
-var timelimit = 0.5;
-var nb_cols = 6;
-var nb_rows = 6;
-var data = new Array(0);
-
-function restart_game() {
-  //console.log("Restarting game");
-  cur_game = generateGuid();
-  nb_cols = parseInt(document.getElementById('nb-cols').value);
-  if (nb_cols == "" || isNaN(nb_cols)) {
-    nb_cols = 6;
-  }
-  nb_rows = parseInt(document.getElementById('nb-rows').value);
-  if (nb_rows == "" || isNaN(nb_rows)) {
-    nb_rows = 6;
-  }
-  cur_ended = false;
-  console.log("Starting game", cur_game);
-  points = [0, 0, 0];
-  cur_player = 1;
-  var old_length = 0;
-  for (var ri=0; ri<nb_rows + 1; ri++) {
-    if (ri >= data.length) {
-      data.push(new Array(0));
-    }
-    var row = data[ri];
-    for (var ci=0; ci<nb_cols + 1; ci++) {
-      if (ci >= row.length) {
-        row.push({l:0, t:0, p:0, r:0, c:0});
-      }
-      var l = 0;
-      var t = 0;
-      var p = 0;
-      if (ri == nb_rows) {
-        l = undefined;
-        p = undefined;
-      }
-      if (ci == nb_cols) {
-        t = undefined;
-        p = undefined
-      }
-      var cell = row[ci];
-      cell.l = l;
-      cell.t = t;
-      cell.p = p;
-      cell.r = ri;
-      cell.c = ci;
-    }
-    old_length = row.length;
-    for (var ci=nb_cols + 1; ci<old_length; ci++) {
-      row.pop();
-    }
-  }
-  old_length = data.length;
-  for (var ri=nb_rows + 1; ri<old_length; ri++) {
-    data.pop();
-  }
-}
-
-function user_click(cell, o) {
-  if (cur_ended) {
-    //console.log('Game ended, ignoring click');
-    return;
-  }
-  console.log('User click', cell, o);
-  var won_cell = false;
-  var c = cell.c;
-  var r = cell.r;
-  var msg = {
-    type: "action",
-    game: cur_game,
-    player: cur_player,
-    nextplayer: cur_player,
-    score: [points[1], points[2]],
-    location: [r, c],
-    orientation: o
-  };
-  if (o == "h") {
-    if (cell.t != 0) {
-      return;
-    }
-    cell.t = cur_player;
-    // Above
-    if (r > 0) {
-      if (data[r - 1][c].l != 0
-        && data[r - 1][c + 1].l != 0
-        && data[r - 1][c].t != 0
-        && data[r][c].t != 0) {
-        won_cell = true;
-        points[cur_player] += 1;
-        data[r - 1][c].p = cur_player;
-      }
-    }
-    // Below
-    if (r < nb_rows) {
-      if (data[r][c].l != 0
-        && data[r][c + 1].l != 0
-        && data[r][c].t != 0
-        && data[r + 1][c].t != 0) {
-        won_cell = true;
-        points[cur_player] += 1;
-        data[r][c].p = cur_player;
-      }
-    }
-  }
-
-  if (o == "v") {
-    if (cell.l != 0) {
-      return;
-    }
-    cell.l = cur_player;
-    // Left
-    if (c > 0) {
-      if (data[r][c - 1].l != 0
-        && data[r][c].l != 0
-        && data[r][c - 1].t != 0
-        && data[r + 1][c - 1].t != 0) {
-        won_cell = true;
-        points[cur_player] += 1;
-        data[r][c - 1].p = cur_player;
-      }
-    }
-    // Right
-    if (c < nb_cols) {
-      if (data[r][c].l != 0
-        && data[r][c + 1].l != 0
-        && data[r][c].t != 0
-        && data[r + 1][c].t != 0) {
-        won_cell = true;
-        points[cur_player] += 1;
-        data[r][c].p = cur_player;
-      }
-    }
-  }
-
-  msg["score"] = [points[1], points[2]];
-
-  if (!won_cell) {
-    cur_player = 3 - cur_player;
-    msg.nextplayer = cur_player;
-  }
-  update_board();
-  if (points[1] + points[2] == nb_cols * nb_rows) {
-    // Game over
-    var winner = 1
-    if (points[2] == points[1]) {
-      winner = 0;
-    }
-    if (points[2] > points[1]) {
-      winner = 2;
-    }
-    cur_ended = true;
-    msg.type = "end";
-    msg.nextplayer = 0;
-    msg.winner = winner;
-  }
-  send_to_agents(msg);
-}
-
-var field_margin = 10;
-var cell_width = 40;
-var cell_margin = 4;
-var player_height = 40;
-var width = 400;
-var height = 600;
-var line_width = 5;
-
-var player_color = [
-  "#E6E6E6",
-  "#FC6666",
-  "#0F80FF"
-];
-
-var svg = d3.select("#playing-area").append("svg")
-  .attr("width", width)
-  .attr("height", height)
-  .append("g")
-  .attr("transform", "translate("+field_margin+","+field_margin+")");
-
-var player = svg.append("g")
-  .attr("class", "player")
-  .attr("transform", "translate(0,10)");
-
-var field = svg.append("g")
-  .attr("class", "field")
-  .attr("transform", "translate(0,"+player_height+")");
-
-
-function update_board() {
-  // PLAYERS - enter & update
-  var player_text = player.selectAll("text")
-    .data([cur_player, cur_player]);
-
-  player_text = player_text.enter().append("text")
-    .attr("x", function(c, i) { return i * 100;})
-    .merge(player_text)
-      .text(function(c, i) {return "Player " + (i + 1) + ": "+points[i + 1];})
-      .attr("fill", function(c, i) {
-        if (c == i + 1) {
-          return player_color[c];
-        } else {
-          return player_color[0];
-        }
-      });
-
-  // ROWS - enter & update
-  var rows = field.selectAll(".row")
-    .data(data)
-      .attr("fill", function() {return null;});
-
-  rows.exit().remove();
-
-  rows = rows.enter().append("g")
-      .attr("class", "row")
-      .attr("transform", function(row, i) {return "translate(0," + cell_width * i + ")";})
-    .merge(rows);
-
-  // COLS - enter & update
-  var cols = rows.selectAll(".col")
-    .data(function(col) {return col;});
-
-  cols.exit().remove();
-
-  var cols_enter = cols.enter().append("g")
-      .attr("class", "col")
-      .attr("transform", function(col, ri) {return "translate("+cell_width * ri+",0)";});
-
-  // CELL - enter
-  cols_enter.append("rect")
-    .attr("class", "cell")
-    .attr("rx", cell_margin)
-    .attr("ry", cell_margin)
-    .attr("opacity", 0.25)
-    .attr("x", cell_margin)
-    .attr("y", cell_margin)
-    .attr("width", cell_width - 2*cell_margin)
-    .attr("height", cell_width - 2*cell_margin);
-
-  // HLINE - enter
-  cols_enter.append("line")
-    .attr("class", "hline")
-    .attr("x1", function(cell, ci) {return cell_margin;})
-    .attr("x2", function(cell, ci) {return cell_width - cell_margin;})
-    .attr("y1", 0)
-    .attr("y2", 0)
-    .attr("stroke-linecap", "round")
-    .attr("stroke", function(cell) {return player_color[cell.t];});
-
-  cols_enter.append("path")
-    .attr("d", "M"+cell_margin+",0"+
-               "L"+(cell_width/2)+",-"+(cell_width/3)+
-               "L"+(cell_width-cell_margin)+",0"+
-               "L"+(cell_width/2)+","+(cell_width/3)+"Z")
-    .attr("stroke", "black")
-    .attr("stroke-width", 2)
-    .attr("opacity", "0")
-    .on("click", function(cell) {
-      if (agents[cur_player].active == true) {
-        console.log("Ignoring click, automated agent")
-      } else {
-        user_click(cell, "h");
-      }
-    });
-
-  // VLINE - enter
-  cols_enter.append("line")
-    .attr("class", "vline")
-    .attr("y1", function(cell, ci) {return cell_margin;})
-    .attr("y2", function(cell, ci) {return cell_width - cell_margin;})
-    .attr("x1", 0)
-    .attr("x2", 0)
-    .attr("stroke-linecap", "round")
-    .attr("stroke", function(cell) {return player_color[cell.l];});
-
-  cols_enter.append("path")
-    .attr("d", "M0,"+cell_margin+
-               "L-"+(cell_width/3)+","+(cell_width/2)+
-               "L0,"+(cell_width-cell_margin)+
-               "L"+(cell_width/3)+","+(cell_width/2)+"Z")
-    .attr("stroke", "black")
-    .attr("stroke-width", 2)
-    .attr("opacity", "0")
-    .on("click", function(cell) {
-      if (agents[cur_player].active == true) {
-        console.log("Ignoring click, automated agent");
-      } else {
-        user_click(cell, "v");
-      }
-    });
-
-  cols = cols_enter
-    .merge(cols);
-
-  // HLINE - update
-  cols.selectAll(".hline")
-    .attr("stroke-width", function(cell) {
-      if (typeof(cell.t) == "undefined") {
-        return 0;
-      }
-      return line_width;
-    })
-    .attr("stroke", function(cell) {return player_color[cell.t];});
-
-  // VLINE - update
-  cols.selectAll(".vline")
-    .attr("stroke-width", function(cell, ci) {
-      if (typeof(cell.l) == "undefined") {
-        return 0;
-      }
-      return line_width;
-    })
-    .attr("stroke", function(cell) {return player_color[cell.l];});
-
-  // CELL - update
-  cols.selectAll(".cell")
-    .attr("fill", function(cell) {
-      if (cell.p == undefined) {
-        return "white";
-      }
-      return player_color[cell.p];
-    });
-}
-
-
-// AGENT CONNECTIONS
-
-var agents = [
-  {},
-  {address: undefined, active: false, socket: undefined},
-  {address: undefined, active: false, socket: undefined}
-];
-
-var msg_queue = [];
-
-
-function start_connections() {
-  for (var i=1; i<3; i++) {
-    agents[i] = {address:undefined, active: false, socket: undefined};
-    var address = document.getElementById('agent'+i).value;
-    if (address != "") {
-      //console.log("Starting websocket for agent "+i+" on address "+address);
-      var agent = agents[i];
-      agent.address = address;
-      agent.socket = new WebSocket(address);
-      agent.socket.onopen = (function (ii, iagent) { return function(event) {
-        console.log("Agent "+ii+" connected")
-        iagent.active = true;
-        iagent.socket.onmessage = function(event) {
-          var msg = JSON.parse(event.data);
-          //console.log("Get msg from agent "+ii, msg);
-          if (msg.type == "action") {
-            if (cur_player == ii) {
-              console.log("Received action from ACTIVE player "+ii, msg);
-              user_click(data[msg.location[0]][msg.location[1]], msg.orientation);
-            } else {
-              console.log("Received action from NON-ACTIVE player "+ii, msg);
-            }
-          }
-          return false;
-        };
-        iagent.socket.onclose = function(event) {
-          console.log("Closing connection to agent "+ii);
-        };
-        iagent.socket.onerror = function(event) {
-          console.log("Error on connection to agent "+ii, event);
-        };
-        msg = {
-          "type": "start",
-          "player": ii,
-          "timelimit": timelimit,
-          "game": cur_game,
-          "grid": [nb_rows, nb_cols]
-        };
-        iagent.socket.send(JSON.stringify(msg));
-      };}(i, agent));
-    }
-  }
-}
-
-
-function send_to_agents(msg) {
-  msg_queue.push(JSON.stringify(msg));
-  try_sending_to_agents();
-}
-
-
-function try_sending_to_agents() {
-  var all_connected = true;
-  for (var i=1; i<3; i++) {
-    if (agents[i].address !== undefined && agents[i].active == false) {
-      all_connected = false;
-      break;
-    }
-  }
-  if (!all_connected) {
-    // Wait until all are connected
-    setTimeout(try_sending_to_agents, 100);
-  } else {
-    if (msg_queue.length == 0 ) {
-      return;
-    }
-    var msg = msg_queue.shift();
-    console.log("Send msg to agents", msg);
-    for (var i=1; i<3; i++) {
-      if (agents[i].active == true) {
-        agents[i].socket.send(msg);
-      }
-    }
-  }
-}
-
-
-// STARTUP
-
-function restart() {
-  restart_game();
-  update_board();
-  start_connections();
-}
-
-var restartbtn = document.getElementById("restart-btn");
-restartbtn.onclick = function() {
-  console.log("Restart game");
-  restart();
-};
-
-restart();