Fix Chaotic Blessings never healing the enemy

It has a chance to roll for enemy and heal the enemy,
While calculating the chance was correct,
it was getting the enemy with battle->check_target.
But unit->stop_attack has been called before in
unit->skilluse_id2, making battle->check_target return NULL at that
point, since it has no attack target anymore.
So it defaulted to heal the Homunculus itself, instead of the
enemy.

1 files changed, 12 insertions, 4 deletions

diff --git a/src/map/skill.c b/src/map/skill.c
index b5f84679e..fc5fc013e 100644
--- a/src/map/skill.c
+++ b/src/map/skill.c
@@ -8758,12 +8758,20 @@ static int skill_castend_nodamage_id(struct block_list *src, struct block_list *
 				int r = rnd()%100;
 				int target = (skill_lv-1)%5;
 				int hp;
-				if(r<per[target][0]) //Self
+				if (r < per[target][0]) { //Self
 					bl = src;
-				else if(r<per[target][1]) //Master
+				} else if (r < per[target][1]) { //Master
 					bl = battle->get_master(src);
-				else //Enemy
-					bl = map->id2bl(battle->get_target(src));
+				} else if ((per[target][1] - per[target][0]) < per[target][0]
+					   && bl == battle->get_master(src)) {
+					/**
+					 * Skill rolled for enemy, but there's nothing the Homunculus is attacking.
+					 * So bl has been set to its master in unit->skilluse_id2.
+					 * If it's more likely that it will heal itself,
+					 * we let it heal itself.
+					 */
+					bl = src;
+				}
 
 				if (!bl) bl = src;
 				hp = skill->calc_heal(src, bl, skill_id, 1+rnd()%skill_lv, true);