ex.onClick(displayObject, callback)Small convenience function to make a PIXI.DisplayObject "clickable". It sets interactive to true, changes mouse cursor to pointer and adds a listener for click and tap events.
displayObject (Object): The display object to make clickable.
callback (Function): Will be called on click and tap. Gets the Pixi event as an argument.
ex.onClick(new Sprite(), (event) => {
console.log('Sprite was clicked')
})