CODE EXAMPLE FOR JAVASCRIPT

phaser animation from json

  preload ()
    {
        this.load.atlas('gems', 'assets/tests/columns/gems.png', 'assets/tests/columns/gems.json');

    }

    create ()
    {
        this.add.text(400, 32, 'Animations from JSON Object', { color: '#00ff00' }).setOrigin(0.5, 0);

		// here data contains the animation frames information
        this.anims.fromJSON(data);

        this.add.sprite(400, 200, 'gems').play('diamond');
       // this.add.sprite(400, 300, 'gems').play('prism');
       // this.add.sprite(400, 400, 'gems').play('ruby');
       // this.add.sprite(400, 500, 'gems').play('square');
    }

const data = {
    "anims": [
        {
            "key": "diamond",
            "type": "frame",
            "frames": [
                {
                    "key": "gems",
                    "frame": "diamond_0000",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0001",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0002",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0003",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0004",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0005",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0006",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0007",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0008",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0009",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0010",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0011",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0012",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0013",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0014",
                    "duration": 0,
                    "visible": false
                },
                {
                    "key": "gems",
                    "frame": "diamond_0015",
                    "duration": 0,
                    "visible": false
                }
            ],
            "frameRate": 24,
            "duration": 1.5,
            "skipMissedFrames": true,
            "delay": 0,
            "repeat": -1,
            "repeatDelay": 0,
            "yoyo": false,
            "showOnStart": false,
            "hideOnComplete": false
        },
    ]}