Physics: can you change height of shape of a body after it's added to world?

[fuzzee]

Physics is new to me for game dev.

 

I want the sprite to increase and decrease in size and have the bounding physics shape stay the same size as the sprite.

 

I add the body to the world ok, but then can't change the size of the shape later...

Actor = game.Class.extend({    init: function() {        this.sprite = new game.Sprite(200, 200, 'media/logo.png', {            anchor: {x: 0.5, y: 0.5}        });        this.body = new game.Body({            position: {x: this.sprite.position.x, y: this.sprite.position.y},            CollisionGroup: 1,            mass: 0        });        var shape = new game.Rectangle(this.sprite.width, this.sprite.height);        this.body.addShape(shape);        game.scene.world.addBody(this.body);        game.scene.stage.addChild(this.sprite);        game.scene.addObject(this);    },    update: function() {        this.sprite.height = 10;        this.body.shape.height = 10;    }}); 

Now I want to do this in the udpate:

this.body.shape.height = 10;//ORgame.scene.world.bodies[0].shape.height = 10;

But, that doesn't work. 

 

I could try with each update to remove the body from the world and then add the body back with the new size, but that doesn't seem right.

 

Any ideas?

 

Thanks.

 

[enpu]

Hi,

Thanks for the post.

 

It seems that the physics shape height is actually changing, but the debug draw shape is not.

 

I just pushed new version of debug.js into develop branch, that should be fixed:

https://github.com/ekelokorpi/panda.js/blob/develop/src/engine/debug.js

 

Let me know if that works!

[fuzzee]

All sorted. Working as expected.

 

I was only looking at the debug draw shape and didn't think it was working.

 

Thanks for the quick response.

[enpu]

Great! Let me know, if you have any other problems