END_SCORE

server.js

+const END_SCORE = 11;
+
 // Setup basic express server
 var express = require('express');
 var app = express();
@@ -32,7 +34,7 @@ setInterval(function () {
         ball.calculateNewAxis();
 
         if(score.collision()){
-            if(score.getSumScore() >= 11) {
+            if(score.getSumScore() >= END_SCORE) {
                 io.emit('game over', {
                     winTeam: score.getWinTeam()
                 });