Newtonian gravity with attractor plugin

Phaser 3
1

Hi,

I tried the attractor in this example and got it working in my space game, but i wanted more realistic gravity and read about Neomak’s succesfull attempt.

Is this the proper way to get it done?

I have tried setting my game physics config to:

physics:  {
    default: 'matter',
    matter: {
  plugins: {
            attractors: true
        },
  debug: true
    }
}

And then created a planet class:

export default class Planet extends Phaser.Physics.Matter.Image {
constructor(scene, x, y) {
super(scene.matter.world, x, y, ‘planet’, null, {
shape: {
type: ‘circle’,
radius: 150
},
plugin: {
attractors: [Phaser.Physics.Matter.Matter.Plugin.resolve(“matter-attractors”).Attractors.gravity]
}
});

    this.setStatic(true);
    this.setFriction(1)
    
    scene.add.existing(this);
}

}

I’m not sure I’m doing this right. I get strange behavior with weird warping gravity that ends up being some kind of anti-gravity. I tried changing all objects masses but without any luck either.

Would really like to get this working since it’s a very nice feature!

2

There’s two issues I see. First is that physics apparently won’t apply to an image, you need to use a sprite instead. As for the matter-attractors plugin, it indeed doesn’t seem to do anything.