Adjust Zin's donation routines to only take half your money at once, to

preserve the piety pool when it would cause an overflow, and to increase 
the maximum value such that donations won't be lost in a normal game.  
I'm not sure what upper limit to set, especially considering that this 
is supposed to support DOS and possibly 16-bit values, so, seeing as 
durations are signed ints, I've set it to 32767, which you can only get 
all at once with a donation of a little less than 500000 gold.


git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@8501 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 3 insertions, 2 deletions

diff --git a/crawl-ref/source/acr.cc b/crawl-ref/source/acr.cc
index 46c5be41f6..35d4856076 100644
--- a/crawl-ref/source/acr.cc
+++ b/crawl-ref/source/acr.cc
@@ -2966,9 +2966,10 @@ static void _decrement_durations()
     // (killing monsters, offering items, ...) might be confusing for characters
     // of other religions.
     // For now, though, keep information about what happened hidden.
-    if (you.duration[DUR_PIETY_POOL] > 0 && one_chance_in(5))
+    if (you.piety < MAX_PIETY && you.duration[DUR_PIETY_POOL] > 0
+        && one_chance_in(5))
     {
-        you.duration[DUR_PIETY_POOL]--; // Decrease even if piety at maximum.
+        you.duration[DUR_PIETY_POOL]--;
         gain_piety(1);
 
 #if DEBUG_DIAGNOSTICS || DEBUG_SACRIFICE || DEBUG_PIETY