public void raiseUncharted() {
		Tile tile;
		for (int i = 0; i < uncharted.length; i++) {
			for (int j = 0; j < uncharted[0].length; j++) {
				tile = new Tile(i, j);
				if (((uncharted[i][j] + 5) < 30 && uncharted[i][j] > -1 && game.isVisible(tile))) {
					uncharted[i][j] += 5;
				}
			}
		}
	}