public class TileId
{
    public static final char WALL = '#';
    public static final char SPACE = ' ';
    public static final char PASSAGE = '.';

    private TileId ()  // prevent instantiation!
    {
    }
}
@@ -141,16 +141,57 @@
 E = '.';
+%0A    public static final char DOOR = '%25';
 %0A%0A    pr

Update TileId.java