Rods have an intrinsic recharge rate (#300)

Using Eronarn's proposed system.  Rods get a baseline of 4 MP per 100
turns; every rod has an enchantment, which adds to this.  On top of
that, you get the old Evocations bonus.  At maxed Evocations with a
+9 rod, you gain 52 MP per 100 turns.

Unfortunately, all four of the multi-purpose fields were already used
for rods, so I had to spill enchantment into props.

1 files changed, 11 insertions, 1 deletions

diff --git a/crawl-ref/source/itemname.cc b/crawl-ref/source/itemname.cc
index d39e16abf2..81bb850f16 100644
--- a/crawl-ref/source/itemname.cc
+++ b/crawl-ref/source/itemname.cc
@@ -1618,7 +1618,17 @@ std::string item_def::name_aux(description_level_type desc,
         }
         else
         {
-            buff << (item_is_rod(*this) ? "rod" : "staff")
+            if (item_is_rod(*this) && know_type && know_pluses
+                && !basename && !qualname && !dbname)
+            {
+                short rmod = 0;
+                if (props.exists("rod_enchantment"))
+                    rmod = props["rod_enchantment"];
+
+                output_with_sign(buff, rmod);
+            }
+
+            buff << (item_is_rod(*this) ? " rod" : " staff")
                  << " of " << staff_type_name(item_typ);
         }
         break;