/**
 * Cell information for the Map.
 */

public class CellId
{
    public static final char ENTRANCE = '@';
    public static final char OPEN_PASSAGE = '.';
    public static final char STONE_WALL = '#';
    
    private CellId ()
    {
    }
}
@@ -203,16 +203,114 @@
 ';%0A    %0A
+    public static final char FIRST_KEY = 'a';%0A    public static final char FIRST_DOOR = 'A';%0A    %0A
     priv

Update CellId.java