Refactor out finesse delay adjustment code.

As a side effect, make the one case that used /= 2 (namely,
launcher_final_speed()) use div_round_rand() like the others.

1 files changed, 13 insertions, 0 deletions

diff --git a/crawl-ref/source/fight.cc b/crawl-ref/source/fight.cc
index 0c92d7ca2e..ffcc381049 100644
--- a/crawl-ref/source/fight.cc
+++ b/crawl-ref/source/fight.cc
@@ -464,3 +464,16 @@ void attack_cleave_targets(actor* attacker, list<actor*> &targets,
         targets.pop_front();
     }
 }
+
+int finesse_adjust_delay(int delay)
+{
+    if (you.duration[DUR_FINESSE])
+    {
+        ASSERT(!you.duration[DUR_BERSERK]);
+        // Need to undo haste by hand.
+        if (you.duration[DUR_HASTE])
+            delay = haste_mul(delay);
+        delay = div_rand_round(delay, 2);
+    }
+    return delay;
+}