[Phaser.js] Extended / custom sprites subscribe to event

phaserjs-extended-sprite-subscribe-to-event.js

function Game(){

    /* 
    Then in your gamestate.create you add a Phaser.Signal 
    with which you can dispatch events: 
    */

    var lizardman,
        eventChannel = new Phaser.Signal();

    this.preload = function(){  };

    this.create = function(){
        lizardman = new Lizardman(this.game, 100, 50, 'lizardmanSpriteKey');
    };

    /*
    You subrscribe the lizardman to the Phaser.Signal channel:
    */

    lizardman.listen(eventChannel, lizardman.onEventHappenz);

    /*
    Then in your gamestate.update you can just fire an event anywhere
    and your lizardman can react:
    */

    this.update = function(){
        this.game.physics.arcade.collide(lizardman, enemies, function(){
            eventChannel.dispatch({ type: 'AN_ENEMY_ATTACKED_POOR_LIZARDMAN' });
        }.bind(this));
};