no update function in phaser with sociket.io?

[mumintrollet]

ive followed some tutorials on how to make a game with phaser. the very basic seems to be the 3 parts, "preload, create, update". so i made a game and its working. now i want to make this game multiplayer-playable, so i go to some tutorial for that and i immediately notice, theres no update function. instead theres this: 

 

Game.getCoordinates = function(layer,pointer){
    Client.sendClick(pointer.worldX,pointer.worldY);
};

Game.addNewPlayer = function(id,x,y){
    Game.playerMap[id] = game.add.sprite(x,y,'sprite');
};

Game.movePlayer = function(id,x,y){
    var player = Game.playerMap[id];
    var distance = Phaser.Math.distance(player.x,player.y,x,y);
    var tween = game.add.tween(player);
    var duration = distance*10;
    tween.to({x:x,y:y}, duration);
    tween.start();
};

Game.removePlayer = function(id){
    Game.playerMap[id].destroy();
    delete Game.playerMap[id];
};

i googled on these functions like, "game.removeplayer" but didnt find anything.