Fix so NPC don't ghost when casting spells from scripts while moving.

zone/spells.cpp

@@ -307,6 +307,10 @@ bool Mob::CastSpell(uint16 spell_id, uint16 target_id, uint16 slot,
 		sprintf(temp, "%d", spell_id);
 		parse->EventNPC(EVENT_CAST_BEGIN, CastToNPC(), nullptr, temp, 0);
 	}
+	
+	//To prevent NPC ghosting when spells are cast from scripts
+	if (IsNPC() && IsMoving() && cast_time > 0)
+		SendPosition();
 
 	if(resist_adjust)
 	{