class ScoreText extends Phaser.Text {

	constructor(x, y, score) {
		super(game, x, y, "+" + NumberUtil.numberWithCommas(score), ScoreText.DEFAULT_TEXT_FONT);

		this.anchor.set(0.5);
		this.inputEnabled = false;

		var grd = this.context.createLinearGradient(0, 0, 0, this.height);
		grd.addColorStop(0, '#8ED6FF');
		grd.addColorStop(1, '#004CB3');
		this.fill = grd;
		// this.setShadow(3, 3, 'rgba(0, 0, 0, 0.5)', 2);
		this.stroke = '#fff';
		this.strokeThickness = 5;


		let tweenAlpha = game.add.tween(this);
		tweenAlpha.to( { alpha: 0 }, 1000, Phaser.Easing.Linear.None, true);

		let tweenMoveUp = game.add.tween(this);
		tweenMoveUp.to( { y: this.y - ScoreText.MOVE_UP_AMOUNT_PX }, 1000, Phaser.Easing.Linear.None, true);
		tweenMoveUp.onComplete.addOnce(this.destroySelf, this);

		game.add.existing(this);
	};

	destroySelf() {
		this.destroy();
	}

}

ScoreText.DEFAULT_TEXT_FONT = {
	font: "30px Arial",
	boundsAlignH: "center",		// left, center. right
	boundsAlignV: "middle", 	// top, middle, bottom
	fill: "#fff"
};

ScoreText.MOVE_UP_AMOUNT_PX				= 50;