Matter.js Collider for Follower

[Gabe1515]

Hello, I am using a group of pathed followers similar to this example:

https://www.phaser.io/examples/v3/view/paths/zig-zag-path

But I need them to have colliders so they can interact with and damage the player collider. I am using the matter physics like so in my config:

 physics: {
        default: 'matter',
        matter: {
            gravity: { x: 0, y: 1 },
            debug: true
        },

and with a followers group:

followers = this.add.group(); 

and then in update if certain conditions are met I spawn a new one on the path like so:

var fireSprite = followers.create(0, -50, 'firesprite');
fireSprite.setData('vector', new Phaser.Math.Vector2());
fireSprite.setData('label', 'firesprite');


this.tweens.add({
    targets: fireSprite,
    z: 1,
    ease: 'Sine.easeInOut',
    duration: 20000,
    yoyo: true,
   repeat: -1
});

and then I move them around like:

graphics.clear();
graphics.lineStyle(2, 0xffffff, 1);
path.draw(graphics);

var fireSprites = followers.getChildren();
for (var i = 0; i < fireSprites.length; i++) {
    var t = fireSprites[i].z;
    var vec = fireSprites[i].getData('vector');
    path.getPoint(t, vec);
    fireSprites[i].setPosition(vec.x, vec.y);
    fireSprites[i].setDepth(fireSprites[i].y);
}

and that all works fine and spawns the fireSprite followers and moves them around, but I want them to have a collider. Things like these:

this.physics.matter.world.enable(fireSprite);
this.matter.add(fireSprite);
fireSprite.body.setCircle(1);

don't work and throw errors. Do I need to create the sprites with matter physics somehow? does the 'followers' group need to be made with matter physics?

thanks for any help