Physics group in Matter physics

Phaser 3
1

In Arcade physics, I can create an object group like this:
scoreboardGroup = this.physics.add.group()
How can I do the same thing in Matter physics?
Thank you!

2

I’m probably newer than you to Phaser3 (I picked it up a month ago) but maybe take a look at this similar question from a year ago:

3

Thank you for your answer.
In my game, there are some kind of objectives that player can collide with, but each kind has a different event when it hits player.
What I could find is, all of collision events will be handled in this:
this.matter.world.on(‘collisionstart’, function (event) {
// code here
console.log("colision between " + pairs[0].bodyA.label + " - " + pairs[0].bodyB.label);
}
In my case I don’t know how to set label for the body of my objects.
How can I know which objects that collided?

4

Hi, can I ask how do you do this in Matter Physics? I’m trying to convert mine to Matter Physics and I’m having the same problem?

5

There are no physics groups for Matter Physics. You can use Matter sprites in regular groups, using group.add().

6

I have a function where I will need to keep generating the item from the top, but I couldn’t either get it shown or work?

7

Show your code and any errors you’re getting.

8 
preload() {
        this.load.image("background", "image/gotBg.png");
        this.load.image("character", "image/tyrion.png");
        this.load.image("dodge", "image/dagger.png");
        this.load.image("collect", "image/cups.png");

        this.load.atlas('buttons', './Assets/Sprites/btn_atlas.png','./Assets/Sprites/btn_atlas.json');
        
    }

    create() {
        // buttons
        this.btnLeft = this.add.existing(new GameButton(this,1604, 896, 'buttons', 'btnleft'));
        this.btnRight = this.add.existing(new GameButton(this,1796, 896, 'buttons', 'btnright'));

        this.btnLeft.onPressed =()=> {
            this.player.setVelocityX(-5);
        }
        this.btnLeft.onReleased=()=> {
            this.player.setVelocityX(0);
        }
        this.btnRight.onPressed =()=> {
            this.player.setVelocityX(5);
        }
        this.btnRight.onReleased=()=> {
            this.player.setVelocityX(0);
        }
        
        // background
        this.platforms = this.add.tileSprite(208, 300, 416, 600, 'background');

        this.player = this.matter.add.sprite(200, 520, 'character');
        
        const item = this.add.group();
        
        // genarate item
        function generate() {
            const xCoord = Math.random() * 450;
            item.create(xCoord, 10, 'collect');
        }

        const generateLoop = this.time.addEvent({
            delay: 2500,    
            callback: generate,
            callbackScope: this,
            loop: true
        })

    }

it is looping now but the item is not dropping down

9

Change to

item.add(this.matter.add.sprite(xCoord, 10, 'collect'));
10

It is still the same…