// Check if this is offensive magic skill
		if (skill.isOffensive())
		{
 
            boolean cond = true;
            L2PcInstance trgtF = null;
            if (target instanceof L2PcInstance)
                trgtF = (L2PcInstance) target;
            else if (target instanceof L2SummonInstance)
                trgtF = ((L2SummonInstance)target).getOwner();
            if (trgtF != null)
            {
                if (trgtF.getFactionId() == getFactionId())
                    cond = false;
            }
 
            if (!cond)
                return false;
 
			if ((isInsidePeaceZone(this, target)) && !getAccessLevel().allowPeaceAttack())
			{
				// If L2Character or target is in a peace zone, send a system message TARGET_IN_PEACEZONE a Server->Client packet ActionFailed
				sendPacket(SystemMessage.getSystemMessage(SystemMessageId.TARGET_IN_PEACEZONE));
				sendPacket(ActionFailed.STATIC_PACKET);
				return false;
			}
 
			if (isInOlympiadMode() && !isOlympiadStart()){
				// if L2PcInstance is in Olympia and the match isn't already start, send a Server->Client packet ActionFailed
				sendPacket(ActionFailed.STATIC_PACKET);
				return false;
			}
 
			if (target.getActingPlayer() != null && getSiegeState() > 0 && isInsideZone(L2Character.ZONE_SIEGE)
					&& target.getActingPlayer().getSiegeState() == getSiegeState()
					&& target.getActingPlayer() != this && target.getActingPlayer().getSiegeSide() == getSiegeSide())
			{
				//
				if (TerritoryWarManager.getInstance().isTWInProgress())
					sendPacket(SystemMessage.getSystemMessage(SystemMessageId.YOU_CANNOT_ATTACK_A_MEMBER_OF_THE_SAME_TERRITORY));
				else
					sendPacket(SystemMessage.getSystemMessage(SystemMessageId.FORCED_ATTACK_IS_IMPOSSIBLE_AGAINST_SIEGE_SIDE_TEMPORARY_ALLIED_MEMBERS));
				sendPacket(ActionFailed.STATIC_PACKET);
				return false;
			}
 
			// Check if the target is attackable
			if (!target.isAttackable() && !getAccessLevel().allowPeaceAttack())
			{
				// If target is not attackable, send a Server->Client packet ActionFailed
				sendPacket(ActionFailed.STATIC_PACKET);
				return false;
			}
			// Check for Event Mob's
			if (target instanceof L2EventMonsterInstance && ((L2EventMonsterInstance)target).eventSkillAttackBlocked())
			{
				sendPacket(ActionFailed.STATIC_PACKET);
				return false;
			}
 
			// Check if a Forced ATTACK is in progress on non-attackable target
			if (!target.isAutoAttackable(this) && !forceUse)
			{
				switch (sklTargetType)
				{
					case TARGET_AURA:
					case TARGET_FRONT_AURA:
					case TARGET_BEHIND_AURA:
					case TARGET_CLAN:
					case TARGET_PARTY_CLAN:
					case TARGET_ALLY:
					case TARGET_PARTY:
					case TARGET_SELF:
					case TARGET_GROUND:
					case TARGET_AREA_SUMMON:
						break;
					default: // Send a Server->Client packet ActionFailed to the L2PcInstance
						sendPacket(ActionFailed.STATIC_PACKET);
						return false;
				}
			}
Code: Java