Ignore player swimming etc for connectivity checks.

The dungeon should not arrange itself to suit the player's abilities.
Besides this general philosophical objection, there are a few actual
bugs caused by this behaviour:
 * Entering a vaults level in bat form (which cannot open doors)
   causes a level generation failure.
 * travel_avoid_terrain = shallow_water can cause vaults to be vetoed.
 * Permanent flight or levitation could allow item shifting to push
   an item (even a critical item) into lava or deep water while trying
   to save it.

Fixes #4722.

1 files changed, 2 insertions, 2 deletions

diff --git a/crawl-ref/source/travel.h b/crawl-ref/source/travel.h
index 0bbdfa505b..5b7a175139 100644
--- a/crawl-ref/source/travel.h
+++ b/crawl-ref/source/travel.h
@@ -50,13 +50,12 @@ enum run_mode_type
     RMODE_CONTINUE,
     RMODE_START,
     RMODE_REST_DURATION = 100,
+    RMODE_CONNECTIVITY,        // Pathfinding connectivity check, not running.
 };
 
 /* ***********************************************************************
  * Initialises the travel subsystem.
  */
-void initialise_travel();
-void init_travel_terrain_check(bool check_race_equip = true);
 void stop_running(void);
 void travel_init_load_level();
 void travel_init_new_level();
@@ -65,6 +64,7 @@ uint8_t is_waypoint(const coord_def &p);
 command_type direction_to_command(int x, int y);
 bool is_resting(void);
 void explore_pickup_event(int did_pickup, int tried_pickup);
+bool feat_is_traversable_now(dungeon_feature_type feat);
 bool feat_is_traversable(dungeon_feature_type feat);
 bool is_unknown_stair(const coord_def &p);