3.1.0 Phaser.Physics.Arcade.Sprite Resizing Doesn't Work

[yigitozdemir]

Hi Everyone,

I am trying to move into Phaser 3.1.0, this is my very first step into Phaser 3. I initialized a scene using Arcade Physics, everything is working great but i can not resize Sprites.

create: function(){ this.physics.world.setBounds(0, 0, 400, 400); var star = this.physics.add.sprite(128, 128, 'star'); star.width = 20; star.height = 20; star.setGravity(40, 100); star.setBounce(1).setCollideWorldBounds(true); },

According to documentation width is defined as:

The native (un-scaled) width of this Game Object.

I think it is an issue about scaling game objecs.

Thanks every greate one in this great community!

[agilul]

Use .displayWidth and .displayHeight (or the function .setDisplaySize(w,h)) to resize, as these will also adjust the sprite scale.

[yigitozdemir]

Oh thank you that worked.

But now, image and body moves seperately, https://i.hizliresim.com/bBLPdb.png
Modified code to this, but it didn't work:

create: function(){ this.physics.world.setBounds(0, 0, 400, 400); var star = this.physics.add.sprite(128, 128, 'star'); star.displayWidth = 20; star.displayHeight = 20; star.x = star.body.position.x; star.y = star.body.position.y; star.setGravity(40, 100); star.setBounce(1).setCollideWorldBounds(true); },

[agilul]

Yeah it seems like the physics body doesn't correctly update after modifying the sprite scale.
Needs some checking on the calculations there.

EDIT: probably due to sprite having default pivot/anchor/origin at their center?

[yigitozdemir]

@agilul Thanks, with your comment, I discovered that, we need to set display origin 0 before resizing:

create: function(){ this.physics.world.setBounds(0, 0, 400, 400); var star = this.physics.add.sprite(128, 128, 'star'); star.displayOriginX = 0; star.displayOriginY = 0; star.displayWidth = 20; star.displayHeight = 20; star.x = 0; star.y = 0; star.setGravity(40, 100); star.setBounce(1).setCollideWorldBounds(true); },

I used to scale everything mathematically on my previous games, that will be hard to get used to for me.

[pixelpicosean]

The physics body align issue has been solved in PR #3300

[photonstorm]

Sweet, thanks @pixelpicosean