Fixed a bug that was causing monsters not to move towards the target

git-svn-id: https://svn.code.sf.net/p/rathena/svn/branches/stable@441 54d463be-8e91-2dee-dedb-b68131a5f0ec

Changelog.txt

@@ -6,10 +6,14 @@ Date	Added
         * Skill Updates [celest]
           - Modified Weapon Refine - should only +1 every time.
           - Updated Berserk, Chase Walk, Slim Pitcher
-          - Added skill_range_leniency
+          - Added skill_range_leniency : In some cases when moving to cast a skill the 
+            exe will a send a UseSkill packet before the server has moved us to the 
+            correct position, causing it to fail. Leaving this at 1 should be enough.
+          - Fixed a bug that was causing monsters not to move towards the target
         * Added check for clif.c in case the server didn't realise we've died [celest]
         * Added a fix for @npcmove by JohnC and Fredzilla
-        * Added motd_type [celest]
+        * Added motd_type : Set this to 1 if your clients have langtype problems and 
+          can't display the motd properly[celest]
         * Edited atcommand.c to fix compile warnings [celest]
 
 12/1

src/map/battle.c

@@ -4957,9 +4957,10 @@ int battle_check_range(struct block_list *src,struct block_list *bl,int range)
 
 	if( range>0 && range < arange )	{// 遠すぎる
 // be lenient if the skill was cast before we have moved to the correct position [Celest]
-		if (src->type == BL_PC && ((struct map_session_data *)bl)->walktimer != -1 &&
-			!((arange-=battle_config.skill_range_leniency)<=range))
-		return 0;
+		if (src->type != BL_PC ||
+			(src->type == BL_PC && ((struct map_session_data *)bl)->walktimer != -1 &&
+			!((arange-=battle_config.skill_range_leniency)<=range)))
+			return 0;
 	}
 
 	if( arange<2 )	// 同じマスか隣接