Repair plover teleport and add a test for it.

main.c

@@ -623,6 +623,7 @@ static bool playermove(FILE *cmdin, token_t verb, int motion)
                 /* else fall through */
             } else if (game.prop[motion] != game.newloc / 100 - 3)
                 break;
+	L12:
             do {
                 if (TRAVEL[kk] < 0)BUG(25);
                 ++kk;
@@ -656,13 +657,7 @@ static bool playermove(FILE *cmdin, token_t verb, int motion)
                  *  plover-passage to get it out.  Having dropped it, go back and
                  *  pretend he wasn't carrying it after all. */
                 DROP(EMRALD, game.loc);
-                do {
-                    if (TRAVEL[kk] < 0)BUG(25);
-                    ++kk;
-                    game.newloc = labs(TRAVEL[kk]) / 1000;
-                } while
-                    (game.newloc == scratchloc);
-                continue;	/* back to top of do/while loop */
+		goto L12;
             case 3:
                 /*  Travel 303.  Troll bridge.  Must be done only as special
                  *  motion so that dwarves won't wander across and encounter

notes.adoc

@@ -117,9 +117,10 @@ ways:
   and the choice to refrain will make forward translation into future
   languages easier.
 
-* There are a few gotos left that resist restructuring; all of these
+* There are a few gotos left that resist restructuring; all but of these
   are in the principal command interpreter function implementing its
-  state machine.
+  state machine. the remaining one is a truly mysterious artficat in
+  the player-movement code.
 
 * Linked lists (for objects at a location) are implemented using an array
   of link indices. This is a surviving FORTRANism that is quite unlike

tests/plover.chk

@@ -1158,8 +1158,14 @@ OK
 You are currently holding the following:
 Egg-sized emerald
 
+> plover
 
-You scored 169 out of a possible 430, using 185 turns.
+>>Foof!<<
+
+It is now pitch dark.  If you proceed you will likely fall into a pit.
+
+
+You scored 169 out of a possible 430, using 186 turns.
 
 You have achieved the rating: "Experienced Adventurer".
 

tests/plover.log

@@ -1,4 +1,4 @@
-## Test access to emerald
+## Test access to emerald room and plover teleport
 # Based on walkthrough at http://www.ecsoftwareconsulting.com/node/56
 n
 seed 1495951709
@@ -188,3 +188,4 @@ drop lamp
 e
 take emerald
 inven
+plover