From d00b2d7fcdde9110a9e41a545439f77bce93e4dc Mon Sep 17 00:00:00 2001
From: xazax-hun <xazax-hun@54d463be-8e91-2dee-dedb-b68131a5f0ec>
Date: Tue, 27 Dec 2011 20:41:29 +0000
Subject: Fixed an issue, players were able to see disabled NPCs with maya
 purple card. (bugreport:2221)

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@15288 54d463be-8e91-2dee-dedb-b68131a5f0ec
---
 src/map/clif.c | 27 +++++++++++++++++++++++++--
 src/map/npc.c  |  6 ++++++
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/src/map/clif.c b/src/map/clif.c
index a8969d38e..19f10f828 100644
--- a/src/map/clif.c
+++ b/src/map/clif.c
@@ -1217,7 +1217,13 @@ int clif_spawn(struct block_list *bl)
 	vd = status_get_viewdata(bl);
 	if( !vd || vd->class_ == INVISIBLE_CLASS )
 		return 0;
-
+		
+	/**
+	* Hide NPC from maya puprle card.
+	**/
+	if(bl->type == BL_NPC && (((TBL_NPC*)bl)->sc.option&OPTION_INVISIBLE))
+		return 0;
+		
 	len = clif_set_unit_idle(bl, buf,true);
 	clif_send(buf, len, bl, AREA_WOS);
 	if (disguised(bl))
@@ -1472,6 +1478,12 @@ void clif_move(struct unit_data *ud)
 	vd = status_get_viewdata(bl);
 	if (!vd || vd->class_ == INVISIBLE_CLASS)
 		return; //This performance check is needed to keep GM-hidden objects from being notified to bots.
+		
+	/**
+	* Hide NPC from maya puprle card.
+	**/
+	if(bl->type == BL_NPC && (((TBL_NPC*)bl)->sc.option&OPTION_INVISIBLE))
+		return;
 	
 	if (ud->state.speed_changed) {
 		// Since we don't know how to update the speed of other objects,
@@ -3800,6 +3812,12 @@ void clif_getareachar_unit(struct map_session_data* sd,struct block_list *bl)
 	vd = status_get_viewdata(bl);
 	if (!vd || vd->class_ == INVISIBLE_CLASS)
 		return;
+		
+	/**
+	* Hide NPC from maya puprle card.
+	**/
+	if(bl->type == BL_NPC && (((TBL_NPC*)bl)->sc.option&OPTION_INVISIBLE))
+		return;
 
 	ud = unit_bl2ud(bl);
 	len = ( ud && ud->walktimer != INVALID_TIMER ) ? clif_set_unit_walking(bl,ud,buf) : clif_set_unit_idle(bl,buf,false);
@@ -4233,6 +4251,10 @@ int clif_outsight(struct block_list *bl,va_list ap)
 		case BL_SKILL:
 			clif_clearchar_skillunit((struct skill_unit *)bl,tsd->fd);
 			break;
+		case BL_NPC:
+			if( !(((TBL_NPC*)bl)->sc.option&OPTION_INVISIBLE) )
+				clif_clearunit_single(bl->id,CLR_OUTSIGHT,tsd->fd);
+			break;
 		default:
 			if ((vd=status_get_viewdata(bl)) && vd->class_ != INVISIBLE_CLASS)
 				clif_clearunit_single(bl->id,CLR_OUTSIGHT,tsd->fd);
@@ -4241,7 +4263,8 @@ int clif_outsight(struct block_list *bl,va_list ap)
 	}
 	if (sd && sd->fd)
 	{	//sd is watching tbl go out of view.
-		if ((vd=status_get_viewdata(tbl)) && vd->class_ != INVISIBLE_CLASS)
+		if (((vd=status_get_viewdata(tbl)) && vd->class_ != INVISIBLE_CLASS) &&
+			!(bl->type == BL_NPC && (((TBL_NPC*)bl)->sc.option&OPTION_INVISIBLE)))
 			clif_clearunit_single(tbl->id,CLR_OUTSIGHT,sd->fd);
 	}
 	return 0;
diff --git a/src/map/npc.c b/src/map/npc.c
index 4606cfc8e..0d112b937 100644
--- a/src/map/npc.c
+++ b/src/map/npc.c
@@ -169,13 +169,19 @@ int npc_enable(const char* name, int flag)
 	}
 
 	if (flag&1)
+	{
 		nd->sc.option&=~OPTION_INVISIBLE;
+		clif_spawn(&nd->bl);
+	}
 	else if (flag&2)
 		nd->sc.option&=~OPTION_HIDE;
 	else if (flag&4)
 		nd->sc.option|= OPTION_HIDE;
 	else	//Can't change the view_data to invisible class because the view_data for all npcs is shared! [Skotlex]
+	{
 		nd->sc.option|= OPTION_INVISIBLE;
+		clif_clearunit_area(&nd->bl,CLR_OUTSIGHT);  // Hack to trick maya purple card [Xazax]
+	}
 
 	if (nd->class_ == WARP_CLASS || nd->class_ == FLAG_CLASS)
 	{	//Client won't display option changes for these classes [Toms]
-- 
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