function TypingTextManager() {
	this.init();
}

TypingTextManager.prototype.init = function() {
	this.contents = [];
}

TypingTextManager.prototype.getContents = function() {
	return this.contents;
}

TypingTextManager.prototype.add = function(arr) {
	this.contents = this.contents.concat(arr);
}

TypingTextManager.prototype.slice = function(start, end) {
	this.contents = this.contents.slice(start, end);
}

TypingTextManager.prototype.getShuffledArray = function(arr) {
	return Phaser.ArrayUtils.shuffle(arr);
}

TypingTextManager.prototype.makePracticeContents = function(arr, repeatCount) {
	this.init();
	this.add(arr);
	for(var i = 0; i < repeatCount; i++) {
		this.add(this.getShuffledArray(arr));
	}
}

TypingTextManager.prototype.makeTestContents = function(arr) {
	this.init();
	this.add(this.getShuffledArray(arr));
}