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Velocity doesn't affect body position


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Hi folks.


I'm creating a simple pong clone and, no matter what I do, the velocity of a body doesn't seem to affect it at all. I based myself on what I saw from the PandaJS fiddles but I just can't get it to work.


This is the ball class:

game.module("game.entities.ball").body(function() {    game.createClass("Ball", {      init: function() {        this.sprite = new game.Sprite("ball.png");        this.sprite.addTo(game.scene.stage);        this.sprite.anchor.set(0.5, 0.5);        this.body = new game.Body({          position: {            x: game.system.width / 2,            y: game.system.height / 2          },          velocity: {            x: 10,            y: 0          },          mass: 1        });        this.body.addShape(new game.Rectangle(this.sprite.width, this.sprite.height));        game.scene.world.addBody(this.body);      },      update: function() {        this.sprite.position = this.body.position;      }    });  });

And this is my main scene:

  game.module('game.main').require('game.assets', 'game.entities.ball').body(function() {    game.createScene('Main', {      backgroundColor: 0x000000,      init: function() {        this.world = new game.World();        this.ball = new game.Ball();      }    });  });

The ball is properly displayed but it doesn't move. What am I missing here?

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Hmm that does call the update function, thanks Enpu :)


Question: do I need to add:

this.body.position.x += this.body.velocity.x

To the ball update function? That is the only way I can get the body to move. While this is very logical and simple I didn't see this being done in the examples, so that is a bit confusing.


As far as the name for the function goes, I'm not sure what would be better.

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