public void printGrid() {
		for (int i = 0; i < sizeX; i++) {
			for (int j = 0; j < sizeY; j++) {
				char c = 'E';
				MuseumObject o = grid[i][j].getObject();
				
				if (o instanceof Wall) {
					if (((Wall) o).getEntrance() instanceof Door) {
						c = 'D';
					} else if (((Wall) o).getEntrance() instanceof Window) {
						c = 'w';
					} else {
						c = 'W';
					}
				} else if (o instanceof Camera) {
					c = 'C';
				} else if (grid[i][j].isMonitored()) {
					c = 'M';
				} else {
					c = 'E';
				}
				System.out.print(c + " ");
			}
			System.out.println();
		}
	}