From aefd04b12411ec9df4189696e375ebc2fc70572b Mon Sep 17 00:00:00 2001
From: zelgadis <zelgadis@c06c8d41-db1a-0410-9941-cceddc491573>
Date: Thu, 24 Jul 2008 23:16:54 +0000
Subject: Bug 1902361: don't assert if something goes wrong with the
 book-keeping in PlaceInfo.  Instead, give a diagnostic message about the
 problem, and fix the problem so that the user doesn't get spammed with
 messages.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/branches/stone_soup-0.4@6675 c06c8d41-db1a-0410-9941-cceddc491573
---
 crawl-ref/source/externs.h |  4 ++-
 crawl-ref/source/player.cc | 62 ++++++++++++++++++++++++++++++++++++++--------
 2 files changed, 54 insertions(+), 12 deletions(-)

diff --git a/crawl-ref/source/externs.h b/crawl-ref/source/externs.h
index 66c056c8a6..fdd48acfbb 100644
--- a/crawl-ref/source/externs.h
+++ b/crawl-ref/source/externs.h
@@ -530,7 +530,9 @@ public:
     bool is_global() const;
     void make_global();
 
-    void assert_validity() const;
+    // Not const since it now tries to patch up problems instead of
+    // merely asserting.
+    void assert_validity();
 
     const std::string short_name() const;
 
diff --git a/crawl-ref/source/player.cc b/crawl-ref/source/player.cc
index 53641b7d8b..2f3ab09187 100644
--- a/crawl-ref/source/player.cc
+++ b/crawl-ref/source/player.cc
@@ -6765,7 +6765,7 @@ void PlaceInfo::make_global()
     branch     = -1;
 }
 
-void PlaceInfo::assert_validity() const
+void PlaceInfo::assert_validity()
 {
     // Check that level_type and branch match up.
     ASSERT(is_global()
@@ -6774,24 +6774,64 @@ void PlaceInfo::assert_validity() const
            || level_type > LEVEL_DUNGEON && level_type < NUM_LEVEL_AREA_TYPES
               && branch == -1);
 
+#if DEBUG
     // Can't have visited a place without seeing any of its levels, and
     // vice versa.
-    ASSERT(num_visits == 0 && levels_seen == 0
-           || num_visits > 0 && levels_seen > 0);
+    if(!(num_visits == 0 && levels_seen == 0
+         || num_visits > 0 && levels_seen > 0))
+    {
+        mprf(MSGCH_DIAGNOSTICS, "PlaceInfo: num_vists/levels_seen mismatch");
+        num_visits  = std::max((unsigned long) 1, num_visits);
+        levels_seen = std::max((unsigned long) 1, levels_seen);
+    }
 
     if (level_type == LEVEL_LABYRINTH || level_type == LEVEL_ABYSS)
-        ASSERT(num_visits == levels_seen);
+    {
+        if (num_visits != levels_seen)
+        {
+            mprf(MSGCH_DIAGNOSTICS, "PlaceInfo: num_visits and levels_seen "
+                 "not identical for labyrinth or abyss");
+            num_visits  = std::max(num_visits, levels_seen);
+            levels_seen = std::max(num_visits, levels_seen);
+        }
+    }
     else if (level_type == LEVEL_PANDEMONIUM)
-        ASSERT(num_visits <= levels_seen);
+    {
+        if (num_visits > levels_seen)
+        {
+            mprf(MSGCH_DIAGNOSTICS, "PlaceInfo: Pandemonium visited more "
+                 "times than the number of its levels that have been seen.");
+            num_visits = levels_seen;
+        }
+    }
     else if (level_type == LEVEL_DUNGEON && branches[branch].depth > 0)
-        ASSERT(levels_seen <= (unsigned long) branches[branch].depth);
+    {
+        if(levels_seen > (unsigned long) branches[branch].depth)
+        {
+            mprf(MSGCH_DIAGNOSTICS, "PlaceInfo: more levels of branch seen "
+                 "than the branch actually has.");
+            levels_seen = branches[branch].depth;
+        }
+    }
 
-    ASSERT(turns_total == (turns_explore + turns_travel + turns_interlevel
-                           + turns_resting + turns_other));
+    if(turns_total != (turns_explore + turns_travel + turns_interlevel
+                       + turns_resting + turns_other))
+    {
+        mprf(MSGCH_DIAGNOSTICS, "PlaceInfo: turns breakdown doesn't sum "
+             "up properly.");
+        turns_total = (turns_explore + turns_travel + turns_interlevel
+                       + turns_resting + turns_other);
+    }
 
-    ASSERT(elapsed_total == (elapsed_explore + elapsed_travel
-                             + elapsed_interlevel + elapsed_resting
-                             + elapsed_other));
+    if(elapsed_total != (elapsed_explore + elapsed_travel + elapsed_interlevel
+                         + elapsed_resting + elapsed_other))
+    {
+        mprf(MSGCH_DIAGNOSTICS, "PlaceInfo: elapsed time breakdown doesn't "
+             "sum up properly.");
+        elapsed_total = (elapsed_explore + elapsed_travel + elapsed_interlevel
+                         + elapsed_resting + elapsed_other);
+    }
+#endif
 }
 
 const std::string PlaceInfo::short_name() const
-- 
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