class GameIntro extends Board {
    constructor(ctx, key) {
        super(ctx, key);
        this.controls = {
            'Space': ()=>this.next(1)
        }
    }
    update() {
        this.centerText('BreakOut', this.y, '48px', 'Consolas', 'Black');
        this.centerText('JDG', this.y + 50, '24px', 'Consolas', 'Black');
    }
    centerText(txt, y, s, f, c) {
        this.ctx.font = s + ' ' + f;
        this.ctx.fillStyle = 'Black';
        let x = (this.ctx.canvas.width - this.ctx.measureText(txt).width) / 2;
        this.ctx.fillText(txt, x, y);
    }
}