Выполнено всё кроме второго пункта, как так?

package com.javarush.games.game2048; import com.javarush.engine.cell.*; public class Game2048 extends Game { private static final int SIDE = 4; private int[][] gameField = new int[SIDE][SIDE]; private Color getColorByValue(int value) { Color cellColor = Color.WHITE; switch (value) { case (0): cellColor = Color.MAGENTA; break; case (2): cellColor = Color.GRAY; break; case (4): cellColor = Color.YELLOW; break; case (8): cellColor = Color.ORANGE; break; case (16): cellColor = Color.RED; break; case (32): cellColor = Color.BROWN; break; case (64): cellColor = Color.BLACK; break; case (128): cellColor = Color.BLUE; break; case (256): cellColor = Color.PURPLE; break; case (512): cellColor = Color.PINK; break; case (1024): cellColor = Color.WHITE; break; case (2048): cellColor = Color.GREEN; break; default: break; } return cellColor; } private void setCellColoredNumber(int x, int y, int value) { String valueString = Integer.toString(value); Color cellColor = getColorByValue(value); if (value !=0) { setCellValueEx(x, y, cellColor, valueString); } else { setCellValueEx(x, y, cellColor, ""); } } private void createNewNumber() { int randCellX; int randCellY; do { randCellX = getRandomNumber(SIDE); randCellY = getRandomNumber(SIDE); } while (gameField[randCellX][randCellY] != 0); if (getRandomNumber(10) == 9 ) { gameField[randCellX][randCellY] = 4; } else { gameField[randCellX][randCellY] = 2; } } private boolean compressRow(int[] row) { int[] tempRow = new int[SIDE]; int j = 0; for (int i = 0; i < SIDE; i++) { if (row[i] != 0) { tempRow[j] = row[i]; j++; } else { tempRow[SIDE - i + j - 1] = 0; } } int n = 0; for (int i = 0; i < SIDE; i++) { if (tempRow[i] == row[i]) { n++; } } if (n == SIDE) { return false; } else { row = tempRow; return true; } } private void createGame() { createNewNumber(); createNewNumber(); } private void drawScene() { setCellColoredNumber(0, 0, gameField[0][0]); setCellColoredNumber(0, 1, gameField[1][0]); setCellColoredNumber(0, 2, gameField[2][0]); setCellColoredNumber(0, 3, gameField[3][0]); setCellColoredNumber(1, 0, gameField[0][1]); setCellColoredNumber(1, 1, gameField[1][1]); setCellColoredNumber(1, 2, gameField[2][1]); setCellColoredNumber(1, 3, gameField[3][1]); setCellColoredNumber(2, 0, gameField[0][2]); setCellColoredNumber(2, 1, gameField[1][2]); setCellColoredNumber(2, 2, gameField[2][2]); setCellColoredNumber(2, 3, gameField[3][2]); setCellColoredNumber(3, 0, gameField[0][3]); setCellColoredNumber(3, 1, gameField[1][3]); setCellColoredNumber(3, 2, gameField[2][3]); setCellColoredNumber(3, 3, gameField[3][3]); } @Override public void initialize() { setScreenSize(SIDE, SIDE); createGame(); drawScene(); } }