game.js

function spawn(m) {
    var label = m.Id.match(/(^\w*)-/i)[1];
    var p = game.add.sprite(m.X, m.Y, 'char');
    p.animations.add('down', [0, 1, 2], 10);
    p.animations.add('left', [12, 13, 14], 10);
    p.animations.add('right', [24, 25, 26], 10);
    p.animations.add('up', [36, 37, 38], 10);
    p.label = game.add.text(m.X, m.Y - 10, label, style);
    return p;
}

function uPosition(m) {
    if (players[m.Id].x > m.X) {
        players[m.Id].animations.play('left');
    } else if (players[m.Id].x < m.X) {
        players[m.Id].animations.play('right');
    } else if (players[m.Id].y > m.Y) {
        players[m.Id].animations.play('up');
    } else {
        players[m.Id].animations.play('down');
    }
    players[m.Id].x = players[m.Id].label.x = m.X;
    players[m.Id].y = m.Y;
    players[m.Id].label.y = m.Y - 10;
}