private Object[][] createItemsToCollect(int currentLevel) {

        switch (currentLevel) {
            case 3:
                Object[][] level_3 = {{1}, {"Gem", 0, 2}};
                return level_3;
            case 4:
                Object[][] level_4 = {{2}, {"Gem", 0, 1}, {"Money", 0, 1}};
                return level_4;
            case 5:
                Object[][] level_5 = {{1}, {"Money", 0, 2}};
                return level_5;
            case 6:
                Object[][] level_6 = {{2}, {"Gem", 0, 1}, {"Battery", 0, 1}};
                return level_6;
            case 7:
                Object[][] level_7 = {{3}, {"Money", 0, 1}, {"Battery", 0, 1}, {"Gem", 0, 1}};
                return level_7;
            case 8:
                Object[][] level_8 = {{2}, {"Gem", 0, 2}, {"Map", 0, 1}};
                return level_8;
            case 9:
                Object[][] level_9 = {{3}, {"Map", 0, 1}, {"Money", 0, 1}, {"Battery", 0, 1}};
                return level_9;
            case 10:
                Object[][] level_10 = {{2}, {"Battery", 0, 2}, {"Gem", 0, 1}};
                return level_10;
        }
        return null;
    }