implement player class with player movement

public/index.html

@@ -59,7 +59,6 @@
 <script src="js/Button.js"></script>
 <script src="js/Sprite.js"></script>
 <script src="js/chat.js"></script>
-<script src="js/player.js"></script>
 <script src="js/game.js"></script>
 <script src="js/index.js"></script>
 </body>