* Rewrote the hard monster AI. Monsters will now behave a lot closer to official servers:

* Monsters will now attack immediately when they are chasing a target and it comes into attack range (bugreport:7370)
* Monsters will now chase their target during their aDelay, but they still have to wait for aMotion to be able to move again (bugreport:9269)
* Monsters will now rethink their chase in a configurable interval (see monster_chase_refresh in monster.conf), official value is once per cell, previously it was once per 3 cells
* Monsters will now stop when they rethink their chase and their target is gone (player hides or target loot was picked), regardless of the monster_ai setting (note: if you want the old, stupid behavior, just increase monster_chase_refresh instead)

Thanks to Playtester (rathena: cfef8a0088c3)

1 files changed, 12 insertions, 3 deletions

diff --git a/conf/battle/monster.conf b/conf/battle/monster.conf
index 50d661087..9ca8df825 100644
--- a/conf/battle/monster.conf
+++ b/conf/battle/monster.conf
@@ -29,9 +29,7 @@ monster_max_aspd: 199
 // 0x004: If not set, mobs that can change target only do so when melee attacked
 //        (distance player/mob < 3), otherwise mobs may change target and chase 
 //        ranged attackers. This flag also overrides the 'provoke' target.
-// 0x008: If set, when a mob loses track of their target, they stop walking
-//        immediately. Otherwise, they continue to their last target tile. When
-//        set mobs also scatter as soon as they lose their target. Use this mode
+// 0x008: When set, mobs scatter as soon as they lose their target. Use this mode
 //        to make it much harder to mob-train by hiding and collecting them on a
 //        single spot (ie: GrimTooth training)
 // 0x010: If set, mob skills defined for friends will also trigger on themselves.
@@ -52,6 +50,17 @@ monster_max_aspd: 199
 // Example: 0x140 -> Chase players through warps + use skills in random order.
 monster_ai: 0
 
+// How often should a monster rethink its chase?
+// 0: Every 100ms (MIN_MOBTHINKTIME)
+// 1: Every cell moved (official)
+// 2: Every 2 cells moved
+// 3: Every 3 cells moved (previous setting)
+// x: Every x cells moved
+// Regardless of this setting, a monster will always rethink its chase if it has 
+// reached its target. Increase this value if you want to make monsters continue
+// moving after they lost their target (hide, loot picked, etc.).
+monster_chase_refresh: 1
+
 // Should mobs be able to be warped (add as needed)?
 // 0: Disable.
 // 1: Enable mob-warping when standing on NPC-warps