public void listen() throws IOException {
        long loopTime;
        long timer = System.currentTimeMillis();
        Log.log("Starting to listen for connections.", MessageState.ENGINE);
        while(state == ServerState.RUNNING) {
            loopTime = System.currentTimeMillis();
            if(System.currentTimeMillis() - timer > 10000) {
                Log.log("*************************************\nCurrently there are " + connectionCount + " connections!\n*************************************", MessageState.ENGINE);
                timer = System.currentTimeMillis();
            }

            selector.select(500);

            Iterator selectedKeys = selector.selectedKeys().iterator();
            while(selectedKeys.hasNext()) {
                SelectionKey key = (SelectionKey) selectedKeys.next();
                selectedKeys.remove();

                if(!key.isValid()) {
                    continue;
                }

                if(key.isAcceptable()) {
                    accept(key);
                    connectionCount++;
                } else if(key.isReadable()) {
                    read(key);
                }
            }

            loopTime = System.currentTimeMillis();
            long engineUsage = (loopTime - timer < 1000) ? (loopTime - timer) / 10 : 100;
            Log.log("Engine Usage: " + engineUsage + "%", MessageState.ENGINE);
        }
        serverSocket.close();
        Log.log("Server ended...", MessageState.ENGINE);
    }

    public void accept(SelectionKey key) throws IOException {
        ServerSocketChannel serverSocketChannel = (ServerSocketChannel) key.channel();
        SocketChannel socketChannel = serverSocketChannel.accept();
        socketChannel.configureBlocking(false);
        socketChannel.register(selector, SelectionKey.OP_READ);
    }