Merge branch 'NetHack-3.6'

doc/fixes36.3

@@ -314,6 +314,7 @@ clairvoyance showed all monsters in range, then after player viewed the map,
 	did a normal monster refresh; the 'I' glyph step clobbers remembered
 	object at same spot, so skip it for locations where monster refresh
 	is going to immediately redisplay a monster
+take holes that you avoided into consideration when you're on the brink
 unix: fix double DLB definition in linux hints file
 windows: fix --showpaths output for the data file which relies on being
 	constructed programmatically to incorporate the version suffix

include/extern.h

@@ -2631,6 +2631,7 @@ E int FDECL(launch_obj, (SHORT_P, int, int, int, int, int));
 E boolean NDECL(launch_in_progress);
 E void NDECL(force_launch_placement);
 E boolean FDECL(uteetering_at_seen_pit, (struct trap *));
+E boolean FDECL(uescaped_shaft, (struct trap *));
 E boolean NDECL(lava_effects);
 E void NDECL(sink_into_lava);
 E void NDECL(sokoban_guilt);

src/dig.c

@@ -1167,7 +1167,7 @@ struct obj *obj;
         You("cannot stay under%s long enough.",
             is_pool(u.ux, u.uy) ? "water" : " the lava");
     } else if ((trap = t_at(u.ux, u.uy)) != 0
-               && uteetering_at_seen_pit(trap)) {
+               && (uteetering_at_seen_pit(trap) || uescaped_shaft(trap))) {
         dotrap(trap, FORCEBUNGLE);
         /* might escape trap and still be teetering at brink */
         if (!u.utrap)

src/do.c

@@ -1,4 +1,4 @@
-/* NetHack 3.6	do.c	$NHDT-Date: 1574722862 2019/11/25 23:01:02 $  $NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.193 $ */
+/* NetHack 3.6	do.c	$NHDT-Date: 1575056306 2019/11/29 19:38:26 $  $NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.195 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /*-Copyright (c) Derek S. Ray, 2015. */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -244,12 +244,13 @@ const char *verb;
         }
         return water_damage(obj, NULL, FALSE) == ER_DESTROYED;
     } else if (u.ux == x && u.uy == y && (t = t_at(x, y)) != 0
-               && uteetering_at_seen_pit(t)) {
+               && (uteetering_at_seen_pit(t) || uescaped_shaft(t))) {
         if (Blind && !Deaf)
             You_hear("%s tumble downwards.", the(xname(obj)));
         else
-            pline("%s %s into %s pit.", The(xname(obj)),
-                  otense(obj, "tumble"), the_your[t->madeby_u]);
+            pline("%s %s into %s %s.", The(xname(obj)),
+                  otense(obj, "tumble"), the_your[t->madeby_u],
+                  is_pit(t->ttyp) ? "pit" : "hole");
     } else if (obj->globby) {
         /* Globby things like puddings might stick together */
         while (obj && (otmp = obj_nexto_xy(obj, x, y, TRUE)) != 0) {
@@ -996,7 +997,7 @@ dodown()
     }
     if (!stairs_down && !ladder_down) {
         trap = t_at(u.ux, u.uy);
-        if (trap && uteetering_at_seen_pit(trap)) {
+        if (trap && (uteetering_at_seen_pit(trap) || uescaped_shaft(trap))) {
             dotrap(trap, TOOKPLUNGE);
             return 1;
         } else if (!trap || !is_hole(trap->ttyp)

src/engrave.c

@@ -156,7 +156,8 @@ boolean check_pit;
     if (u.usteed && P_SKILL(P_RIDING) < P_BASIC)
         return FALSE;
     if (check_pit && !Flying
-        && (t = t_at(u.ux, u.uy)) != 0 && uteetering_at_seen_pit(t))
+        && (t = t_at(u.ux, u.uy)) != 0
+        && (uteetering_at_seen_pit(t) || uescaped_shaft(t)))
         return FALSE;
 
     return (boolean) ((!Levitation || Is_airlevel(&u.uz)

src/hack.c

@@ -2634,8 +2634,10 @@ pickup_checks()
     }
     if (!can_reach_floor(TRUE)) {
         struct trap *traphere = t_at(u.ux, u.uy);
-        if (traphere && uteetering_at_seen_pit(traphere))
-            You("cannot reach the bottom of the pit.");
+        if (traphere
+            && (uteetering_at_seen_pit(traphere) || uescaped_shaft(traphere)))
+            You("cannot reach the bottom of the %s.",
+                is_pit(traphere->ttyp) ? "pit" : "abyss");
         else if (u.usteed && P_SKILL(P_RIDING) < P_BASIC)
             rider_cant_reach();
         else if (Blind && !can_reach_floor(TRUE))

src/pickup.c

@@ -509,7 +509,7 @@ int what; /* should be a long */
         if (!can_reach_floor(TRUE)) {
             if ((g.multi && !g.context.run) || (autopickup && !flags.pickup)
                 || ((ttmp = t_at(u.ux, u.uy)) != 0
-                    && uteetering_at_seen_pit(ttmp)))
+                    && (uteetering_at_seen_pit(ttmp) || uescaped_shaft(ttmp))))
                 read_engr_at(u.ux, u.uy);
             return 0;
         }

src/sit.c

@@ -67,7 +67,7 @@ dosit()
 
     if (OBJ_AT(u.ux, u.uy)
         /* ensure we're not standing on the precipice */
-        && !uteetering_at_seen_pit(trap)) {
+        && !(uteetering_at_seen_pit(trap) || uescaped_shaft(trap))) {
         register struct obj *obj;
 
         obj = g.level.objects[u.ux][u.uy];

src/trap.c

@@ -5083,11 +5083,21 @@ boolean
 uteetering_at_seen_pit(trap)
 struct trap *trap;
 {
-    if (trap && trap->tseen && (!u.utrap || u.utraptype != TT_PIT)
-        && is_pit(trap->ttyp))
-        return TRUE;
-    else
-        return FALSE;
+    return (trap && is_pit(trap->ttyp) && trap->tseen
+            && trap->tx == u.ux && trap->ty == u.uy
+            && !(u.utrap && u.utraptype == TT_PIT));
+}
+
+/*
+ * Returns TRUE if you didn't fall through a hole or didn't
+ * release a trap door
+ */
+boolean
+uescaped_shaft(trap)
+struct trap *trap;
+{
+    return (trap && is_hole(trap->ttyp) && trap->tseen
+            && trap->tx == u.ux && trap->ty == u.uy);
 }
 
 /* Destroy a trap that emanates from the floor. */