Generate Frame Numbers

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

var game = new Phaser.Game(config);

function preload ()
{
    this.load.spritesheet('boom', 'assets/sprites/explosion.png', { frameWidth: 64, frameHeight: 64, endFrame: 23 });
}

function create ()
{
    this.add.text(400, 32, 'Check the source code for comments', { color: '#00ff00' }).setOrigin(0.5, 0);

    //  Our 'boom' spritesheet has 23 frames in it.

    //  This animation will use them all by just giving it the sprite sheet key:

    var config1 = {
        key: 'explode1',
        frames: 'boom',
        frameRate: 20,
        repeat: -1
    };

    //  Here we use the 'generateFrameNumbers' function instead to set the start and end frame:

    var config2 = {
        key: 'explode2',
        frames: this.anims.generateFrameNumbers('boom', { start: 0, end: 23 }),
        frameRate: 20,
        repeat: -1
    };

    //  Here we use the 'frames' array because we want to specify the exact frames to use:

    var config3 = {
        key: 'explode3',
        frames: this.anims.generateFrameNumbers('boom', { frames: [ 0, 1, 2, 1, 2, 3, 4, 0, 1, 2 ] }),
        frameRate: 20,
        repeat: -1
    };

    this.anims.create(config1);
    this.anims.create(config2);
    this.anims.create(config3);

    this.add.sprite(200, 300, 'boom').play('explode1');
    this.add.sprite(400, 300, 'boom').play('explode2');
    this.add.sprite(600, 300, 'boom').play('explode3');
}
                        

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