Give Trog's Hand its own duration.

Trog's hand was using DUR_REGENERAITON, and setting
ATTR_DIVINE_REGENERATION to true to specify it was the god ability and
not the spell.
This was silly, so this commit gives trog's hand its own duration:
DUR_TROGS_HAND.

This also fixes a very minor bug: previously if you had trog's hand
active and you tried to cast regen, you got penance but the spell was
immediately canceled. Other duration spells were not canceled.

1 files changed, 1 insertions, 17 deletions

diff --git a/crawl-ref/source/spl-selfench.cc b/crawl-ref/source/spl-selfench.cc
index a7f80579f0..905f520872 100644
--- a/crawl-ref/source/spl-selfench.cc
+++ b/crawl-ref/source/spl-selfench.cc
@@ -126,28 +126,12 @@ spret_type deflection(int pow, bool fail)
     return SPRET_SUCCESS;
 }
 
-void remove_regen(bool divine_ability)
-{
-    mpr("Your skin stops crawling.", MSGCH_DURATION);
-    you.duration[DUR_REGENERATION] = 0;
-    if (divine_ability)
-    {
-        mpr("You feel less resistant to hostile enchantments.", MSGCH_DURATION);
-        you.attribute[ATTR_DIVINE_REGENERATION] = 0;
-    }
-}
-
-spret_type cast_regen(int pow, bool divine_ability, bool fail)
+spret_type cast_regen(int pow, bool fail)
 {
     fail_check();
     you.increase_duration(DUR_REGENERATION, 5 + roll_dice(2, pow / 3 + 1), 100,
                           "Your skin crawls.");
 
-    if (divine_ability)
-    {
-        mpr("You feel resistant to hostile enchantments.");
-        you.attribute[ATTR_DIVINE_REGENERATION] = 1;
-    }
     return SPRET_SUCCESS;
 }