Wierd behavior when scaling sprites with physics on

[TrevorJacobs]

I'm trying to build a game that uses asteroid style controls, with the added ability that the player can change the size of their ship. I can do each separately, but putting them together causes weirdness. I've narrowed the problem down to having arcade physics on when scaling the sprite. Here's my code:

var game = new Phaser.Game(400, 400, Phaser.AUTO, 'game');var mainState = {	preload: function() {		game.load.image('a', 'assets/star.png');	},		create: function() {        game.world.setBounds( 0, 0, 400, 400 );                this.player = game.add.sprite( 0, 0, 'a' );        this.player.anchor.setTo(0.5, 0.5);        this.player.x = 200;        this.player.y = 200;                // if I comment out this game.physics lines then scaling works,         // but then I don't get acceleration, angularVelocity, and collision        game.physics.startSystem( Phaser.Physics.ARCADE );        game.physics.enable( this.player, Phaser.Physics.ARCADE );         	},		update: function() {         if( game.input.keyboard.isDown(Phaser.Keyboard.A) ) {            this.player.scale.x = this.player.scale.x * 1.2;            this.player.scale.y = this.player.scale.y * 1.2;        } else if( game.input.keyboard.isDown(Phaser.Keyboard.Q) ) {            this.player.scale.x = this.player.scale.x * 0.8;            this.player.scale.y = this.player.scale.y * 0.8;        }	}}game.state.add('main', mainState);game.state.start('main');

What do I need to change?

[crouzilles]

Did you manage to sort out your problem?

 

When I scale my paddle (breakout game) like this:

paddle.scale.setto(2,1); 

it becomes twice the size in x which is what I want, but then it moves to the left of the world as if I had pressed the left key, and it won't budge from there afterwards.

 

So if you have sorted out your problem, please let me know how

 

Regards

Crouz

[Westinghouse]

I have no problem with scaling and collision. Do you use Arcade-Physics? 

Have you activated  'game.debug.body' in the render function to see the size of the body of your sprite? 

[crouzilles]

I'm trying to build a game that uses asteroid style controls, with the added ability that the player can change the size of their ship. I can do each separately, but putting them together causes weirdness. I've narrowed the problem down to having arcade physics on when scaling the sprite. Here's my code:

var game = new Phaser.Game(400, 400, Phaser.AUTO, 'game');var mainState = {	preload: function() {		game.load.image('a', 'assets/star.png');	},		create: function() {        game.world.setBounds( 0, 0, 400, 400 );                this.player = game.add.sprite( 0, 0, 'a' );        this.player.anchor.setTo(0.5, 0.5);        this.player.x = 200;        this.player.y = 200;                // if I comment out this game.physics lines then scaling works,         // but then I don't get acceleration, angularVelocity, and collision        game.physics.startSystem( Phaser.Physics.ARCADE );        game.physics.enable( this.player, Phaser.Physics.ARCADE );         	},		update: function() {         if( game.input.keyboard.isDown(Phaser.Keyboard.A) ) {            this.player.scale.x = this.player.scale.x * 1.2;            this.player.scale.y = this.player.scale.y * 1.2;        } else if( game.input.keyboard.isDown(Phaser.Keyboard.Q) ) {            this.player.scale.x = this.player.scale.x * 0.8;            this.player.scale.y = this.player.scale.y * 0.8;        }	}}game.state.add('main', mainState);game.state.start('main');

What do I need to change?

Make sure you use the latest version of phaser. I had version 2.0.1 and since I changed to 2.2.1, all is well.

 

Regards

Crouz