Secret doors that have a transparent appearance are discovered opened, to prevent a LOS change when noticed.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3293 c06c8d41-db1a-0410-9941-cceddc491573

3 files changed, 14 insertions, 2 deletions

diff --git a/crawl-ref/source/misc.cc b/crawl-ref/source/misc.cc
index e710a5ac3a..61d11eb2e4 100644
--- a/crawl-ref/source/misc.cc
+++ b/crawl-ref/source/misc.cc
@@ -285,7 +285,7 @@ void search_around( bool only_adjacent )
                 if (grd[srx][sry] == DNGN_SECRET_DOOR &&
                     random2(17) <= effective)
                 {
-                    grd[srx][sry] = DNGN_CLOSED_DOOR;
+                    reveal_secret_door(srx, sry);
                     mpr("You found a secret door!");
                     exercise(SK_TRAPS_DOORS, ((coinflip()) ? 2 : 1));
                 }
@@ -1982,3 +1982,12 @@ int speed_to_duration(int speed)
     
     return div_rand_round(100, speed);
 }
+
+void reveal_secret_door(int x, int y)
+{
+    ASSERT(grd[x][y] == DNGN_SECRET_DOOR);
+
+    dungeon_feature_type door = grid_secret_door_appearance(x, y);
+    grd[x][y] = grid_is_opaque(door) ?
+        DNGN_CLOSED_DOOR : DNGN_OPEN_DOOR;
+}
diff --git a/crawl-ref/source/misc.h b/crawl-ref/source/misc.h
index 092ab2eb61..bf590a5a71 100644
--- a/crawl-ref/source/misc.h
+++ b/crawl-ref/source/misc.h
@@ -124,4 +124,6 @@ bool scramble(void);
 bool interrupt_cmd_repeat( activity_interrupt_type ai, 
                            const activity_interrupt_data &at );
 
+void reveal_secret_door(int x, int y);
+
 #endif
diff --git a/crawl-ref/source/spells4.cc b/crawl-ref/source/spells4.cc
index e31a81a837..02ffc88846 100644
--- a/crawl-ref/source/spells4.cc
+++ b/crawl-ref/source/spells4.cc
@@ -37,6 +37,7 @@
 #include "invent.h"
 #include "makeitem.h"
 #include "message.h"
+#include "misc.h"
 #include "monplace.h"
 #include "monstuff.h"
 #include "mon-util.h"
@@ -445,7 +446,7 @@ void cast_detect_secret_doors(int pow)
 
             if (grd[x][y] == DNGN_SECRET_DOOR && random2(pow) > random2(15))
             {
-                grd[x][y] = DNGN_CLOSED_DOOR;
+                reveal_secret_door(x, y);
                 found++;
             }
         }