Updated Manhole skill behavior (#1617)

* Updated Manhole skill behavior
* Fixes #1601
* GvG and Battleground monster objects are not able to be targeted by Manhole.
* Removed the usage of Strip Accessory on targets who are affected by Manhole.
Thanks to @ignizh!

db/pre-re/skill_db.txt

@@ -1087,7 +1087,7 @@
 2295,3,6,1,0,0x1,0,3,1,yes,0,0,0,none,0,0x0,	SC_LAZINESS,Masquerade - Laziness
 2296,3,6,1,0,0x1,0,3,1,yes,0,0,0,none,0,0x0,	SC_UNLUCKY,Masquerade - Unlucky
 2297,3,6,1,0,0x1,0,3,1,yes,0,0,0,none,0,0x0,	SC_WEAKNESS,Masquerade - Weakness
-2298,3,6,1,0,0x1,0,5,1,yes,0,0,0,none,0,0x8000,	SC_STRIPACCESSARY,Strip Accessory
+2298,3,6,1,0,0x1,0,5,1,yes,0,0,0,none,0,0x0,	SC_STRIPACCESSARY,Strip Accessory
 2299,7,6,2,0,0x1,0,3,1,yes,0,0,3,magic,0,0x0,	SC_MANHOLE,Man Hole
 2300,7,6,2,0,0x1,0,3,1,yes,0,0,1,magic,0,0x0,	SC_DIMENSIONDOOR,Dimension Door
 2301,7,6,2,0,0x1,0,3,1,yes,0,0x20000,0,magic,0,0x0,	SC_CHAOSPANIC,Chaos Panic

db/re/skill_db.txt

@@ -1087,7 +1087,7 @@
 2295,3,6,1,0,0x1,0,3,1,yes,0,0,0,none,0,0x0,	SC_LAZINESS,Masquerade - Laziness
 2296,3,6,1,0,0x1,0,3,1,yes,0,0,0,none,0,0x0,	SC_UNLUCKY,Masquerade - Unlucky
 2297,3,6,1,0,0x1,0,3,1,yes,0,0,0,none,0,0x0,	SC_WEAKNESS,Masquerade - Weakness
-2298,3,6,1,0,0x1,0,5,1,yes,0,0,0,none,0,0x8000,	SC_STRIPACCESSARY,Strip Accessory
+2298,3,6,1,0,0x1,0,5,1,yes,0,0,0,none,0,0x0,	SC_STRIPACCESSARY,Strip Accessory
 2299,7,6,2,0,0x1,0,3,1,yes,0,0,3,magic,0,0x0,	SC_MANHOLE,Man Hole
 2300,7,6,2,0,0x1,0,3,1,yes,0,0,1,magic,0,0x0,	SC_DIMENSIONDOOR,Dimension Door
 2301,7,6,2,0,0x1,0,3,1,yes,0,0x20000,0,magic,0,0x0,	SC_CHAOSPANIC,Chaos Panic

src/map/status.c

@@ -2010,6 +2010,10 @@ bool status_check_skilluse(struct block_list *src, struct block_list *target, ui
 				&& (src->type != BL_PC || ((TBL_PC*)src)->skillitem != skill_id))
 				return false;
 			break;
+		case SC_MANHOLE:
+			// Skill is disabled against special racial grouped monsters(GvG and Battleground)
+			if (status_get_race2(target) == RC2_GVG || status_get_race2(target) == RC2_BATTLEFIELD)
+				return false;
 		default:
 			break;
 	}