public Tetris() {
        this.pause = false;
        this.jatkuu = true;
        this.pisteet = 0;
        this.taso = 1;
        this.rivit = 0;
        this.alkutaso = 0;
        this.viive = 2000;
        this.onkoAI = false;
        this.pelipalikat = new Palikka[20][];
        for (int i = 0; i < 20; i++) {
            pelipalikat[i] = new Palikka[10];
        }
        luoUusiPutoava();
    }