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Hi, guys. First of all, I've found Phaser amazing. And though my knowledge of Javascript is pretty basic, almost everything has been done without too many problems. I got a problem with sprite cropping. So I extended Sprite... var cropRect;var some_obj;Medidor = function(game, x, y, someObject) { Phaser.Sprite.call(this, game, x, y, 'medidor'); [...] this.cropEnabled = true; cropRect = new Phaser.Rectangle(0, 0, this.width/2, this.height); this.crop(cropRect); [...] game.add.existing(this);};Medidor.prototype = Object.create(Phaser.Sprite.prototype); Medidor.prototype.constructor = Medidor;Medidor.prototype.update = function() { [...] this.updateCrop();};But when I run the game, an error appears: TypeError: this.crop is not a functionI have even followed the example here: http://examples.phaser.io/_site/view_full.html?d=sprites&f=dynamic+crop.js&t=dynamic%20crop I don't know what I am doing wrong :/ Any ideas? Thanks in advance,