Use a finer scale for magic contamination.

It's now updated every turn instead of every 20 turns and it's almost
deterministic (only the time scaling use randomized rounding).
The bad effects still happen every 20 turns though (just like hell effects and
other stuff).
It has been scaled by 1000. I tried with 100, but I still had some significant
rounding issues, especially with scaling to time_taken.
It shouldn't be possible anymore to gain yellow glow from a single cast of
invisibility even at max power. Although, in theory, it has a slight chance
of putting you just 1 point short of yellow (4999).

1 files changed, 4 insertions, 4 deletions

diff --git a/crawl-ref/source/tileweb.cc b/crawl-ref/source/tileweb.cc
index 204daebf31..43de639c1f 100644
--- a/crawl-ref/source/tileweb.cc
+++ b/crawl-ref/source/tileweb.cc
@@ -655,10 +655,10 @@ void TilesFramework::_send_player(bool force_full)
         // Don't send more information than can be seen from the console HUD.
         // Compare _print_stats_contam and get_contamination_level
         int contam = you.magic_contamination;
-        if (contam >= 26)
-            contam = 26;
-        else if (contam >= 16)
-            contam = 16;
+        if (contam >= 26000)
+            contam = 26000;
+        else if (contam >= 16000)
+            contam = 16000;
         _update_int(force_full, c.contam, contam, "contam");
     }