Change Data Event

var config = {
    type: Phaser.WEBGL,
    parent: 'phaser-example',
    width: 800,
    height: 600,
    scene: {
        preload: preload,
        create: create
    }
};

var game = new Phaser.Game(config);

function preload ()
{
    this.load.image('gem', 'assets/sprites/gem.png');
}

function create ()
{
    var text = this.add.text(350, 250, '', { font: '16px Courier', fill: '#00ff00' });

    var gem = this.add.image(300, 300, 'gem');

    //  Store some data about this Gem:

    gem.setDataEnabled();

    gem.data.set('name', 'Red Gem Stone');
    gem.data.set('level', 2);
    gem.data.set('owner', 'Link');
    gem.data.set('gold', 50);

    text.setText([
        'Name: ' + gem.data.get('name'),
        'Level: ' + gem.data.get('level'),
        'Value: ' + gem.data.get('gold') + ' gold',
        'Owner: ' + gem.data.get('owner')
    ]);

    //  Whenever the 'gold' property is updated we call this function AFTER the change has happened:
    gem.on('changedata-gold', function (gameObject, value) {

        if (value > 500)
        {
            gameObject.data.values.gold = 500;
        }
        else
        {
            text.setText([
                'Name: ' + gem.data.get('name'),
                'Level: ' + gem.data.get('level'),
                'Value: ' + gem.data.get('gold') + ' gold',
                'Owner: ' + gem.data.get('owner')
            ]);
        }

    });

    //  Change the 'value' property when the mouse is clicked

    this.input.on('pointerdown', function () {

        gem.data.values.gold += 100;

    });
}
                        

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