Unify ad_dise

include/extern.h

@@ -2793,6 +2793,7 @@ E void FDECL(mhitm_ad_stun, (struct monst *, struct attack *, struct monst *, st
 E void FDECL(mhitm_ad_legs, (struct monst *, struct attack *, struct monst *, struct mhitm_data *));
 E void FDECL(mhitm_ad_dgst, (struct monst *, struct attack *, struct monst *, struct mhitm_data *));
 E void FDECL(mhitm_ad_samu, (struct monst *, struct attack *, struct monst *, struct mhitm_data *));
+E void FDECL(mhitm_ad_dise, (struct monst *, struct attack *, struct monst *, struct mhitm_data *));
 E boolean FDECL(do_stone_u, (struct monst *));
 E void FDECL(do_stone_mon, (struct monst *, struct attack *, struct monst *, struct mhitm_data *));
 E int FDECL(damageum, (struct monst *, struct attack *, int));

src/mhitu.c

@@ -1022,9 +1022,9 @@ register struct attack *mattk;
             return mhm.hitflags;
         break;
     case AD_DISE:
-        hitmsg(mtmp, mattk);
+        mhitm_ad_dise(mtmp, mattk, &g.youmonst, &mhm);
-        if (!diseasemu(mdat))
+        if (mhm.done)
-            mhm.damage = 0;
+            return mhm.hitflags;
         break;
     case AD_FIRE:
         mhitm_ad_fire(mtmp, mattk, &g.youmonst, &mhm);

src/uhitm.c

@@ -3985,6 +3985,30 @@ struct mhitm_data *mhm;
     }
 }
 
+void
+mhitm_ad_dise(magr, mattk, mdef, mhm)
+struct monst *magr;
+struct attack *mattk;
+struct monst *mdef;
+struct mhitm_data *mhm;
+{
+    struct permonst *pa = magr->data;
+    struct permonst *pd = mdef->data;
+
+    if (magr == &g.youmonst) {
+        /* uhitm */
+        mhm->damage = 0;
+    } else if (mdef == &g.youmonst) {
+        /* mhitu */
+        hitmsg(magr, mattk);
+        if (!diseasemu(pa))
+            mhm->damage = 0;
+    } else {
+        /* mhitm */
+        mhm->damage = 0;
+    }
+}
+
 
 /* Template for monster hits monster for AD_FOO.
    - replace "break" with return