Help Buffer Question

orphangirl · September 22, 2014

First of all, I want to mention that I am a beginner.

I am trying to modify a java buffer. I want to put an if condition that checks if the player has (for example) item 1234(a permanent item, not a consumable) in inventory.

And if he has that item, he can add in the scheme buffs with option "canUse = 1" and buffs with option "canUse = 0".

Can anyone please help me or try to explain how can I put the condition that checks if the player has the item?

Thank you very much.

	private String viewAllSchemeBuffs(String scheme, String page, String action)
	{
		List<String> buffList = new ArrayList<>();
		String HTML_MESSAGE = "<html><head><title>" + TITLE_NAME + "</title></head><body><center><br>";
		String[] eventSplit = viewAllSchemeBuffs$getBuffCount(scheme).split(" ");
		int TOTAL_BUFF = Integer.parseInt(eventSplit[0]);
		int BUFF_COUNT = Integer.parseInt(eventSplit[1]);
		int DANCE_SONG = Integer.parseInt(eventSplit[2]);
		try (Connection con = L2DatabaseFactory.getInstance().getConnection())
		{
			if (action.equals("add"))
			{
				HTML_MESSAGE += "You can add <font color=LEVEL>" + (MAX_SCHEME_BUFFS - BUFF_COUNT) + "</font> Buffs and <font color=LEVEL>" + (MAX_SCHEME_DANCES - DANCE_SONG) + "</font> Dances more!";
				String QUERY = "SELECT * FROM npcbuffer_buff_list WHERE buffType IN (" + generateQuery(BUFF_COUNT, DANCE_SONG) + ") AND canUse=1 ORDER BY Buff_Class ASC, id";
				PreparedStatement getBuffCount = con.prepareStatement(QUERY);
				ResultSet rss = getBuffCount.executeQuery();
				while (rss.next())
				{
					String name = SkillTable.getInstance().getInfo(rss.getInt("buffId"), rss.getInt("buffLevel")).getName();
					name = name.replace(" ", "+");
					buffList.add(name + "_" + rss.getInt("buffId") + "_" + rss.getInt("buffLevel"));
				}
			}
			else if (action.equals("remove"))
			{
				HTML_MESSAGE += "You have <font color=LEVEL>" + BUFF_COUNT + "</font> Buffs and <font color=LEVEL>" + DANCE_SONG + "</font> Dances";
				String QUERY = "SELECT * FROM npcbuffer_scheme_contents WHERE scheme_id=? ORDER BY Buff_Class ASC, id";
				PreparedStatement getBuffCount = con.prepareStatement(QUERY);
				getBuffCount.setString(1, scheme);
				ResultSet rss = getBuffCount.executeQuery();
				while (rss.next())
				{
					String name = SkillTable.getInstance().getInfo(rss.getInt("skill_id"), rss.getInt("skill_level")).getName();
					name = name.replace(" ", "+");
					buffList.add(name + "_" + rss.getInt("skill_id") + "_" + rss.getInt("skill_level"));
				}
			}
			else if (DEBUG)
			{
				throw new RuntimeException();
			}
		}
		catch (SQLException e)
		{
			print(e);
		}
		
		HTML_MESSAGE += "<BR1><table border=0><tr>";
		final int buffsPerPage = 16;
		final String width, pageName;
		int pc = ((buffList.size() - 1) / buffsPerPage) + 1;
		if (pc > 5)
		{
			width = "25";
			pageName = "P";
		}
		else
		{
			width = "50";
			pageName = "Page ";
		}
		for (int ii = 1; ii <= pc; ++ii)
		{
			if (ii == Integer.parseInt(page))
			{
				HTML_MESSAGE += "<td width=" + width + " align=center><font color=LEVEL>" + pageName + ii + "</font></td>";
			}
			else if (action.equals("add"))
			{
				HTML_MESSAGE += "<td width=" + width + ">" + "<button value=\"" + pageName + ii + "\" action=\"bypass -h Quest " + QUEST_LOADING_INFO + " manage_scheme_1 " + scheme + " " + ii + " x\" width=" + width + " height=20   back=\"L2UI_ch3.Btn1_normalOn\" fore=\"L2UI_ch3.Btn1_normal\"></td>";
			}
			else if (action.equals("remove"))
			{
				HTML_MESSAGE += "<td width=" + width + ">" + "<button value=\"" + pageName + ii + "\" action=\"bypass -h Quest " + QUEST_LOADING_INFO + " manage_scheme_2 " + scheme + " " + ii + " x\" width=" + width + " height=20   back=\"L2UI_ch3.Btn1_normalOn\" fore=\"L2UI_ch3.Btn1_normal\"></td>";
			}
			else if (DEBUG)
			{
				throw new RuntimeException();
			}
		}
		HTML_MESSAGE += "</tr></table>";
		
		int limit = buffsPerPage * Integer.parseInt(page);
		int start = limit - buffsPerPage;
		int end = Math.min(limit, buffList.size());
		int k = 0;
		for (int i = start; i < end; ++i)
		{
			String value = buffList.get(i);
			value = value.replace("_", " ");
			String[] extr = value.split(" ");
			String name = extr[0];
			name = name.replace("+", " ");
			int id = Integer.parseInt(extr[1]);
			int level = Integer.parseInt(extr[2]);
			/*--String page = extr[3];--*/
			if (action.equals("add"))
			{
				if (!isUsed(scheme, id, level))
				{
					if ((k % 2) != 0)
					{
						HTML_MESSAGE += "<BR1><table border=0 bgcolor=333333>";
					}
					else
					{
						HTML_MESSAGE += "<BR1><table border=0 bgcolor=000000>";
					}
					HTML_MESSAGE += "<tr><td width=35>" + getSkillIconHtml(id, level) + "</td><td fixwidth=170>" + name + "</td><td><button value=\"Add\" action=\"bypass -h Quest " + QUEST_LOADING_INFO + " add_buff " + scheme + "_" + id + "_" + level + " " + page + " " + TOTAL_BUFF + "\" width=75 height=21   back=\"L2UI_ch3.Btn1_normalOn\" fore=\"L2UI_ch3.Btn1_normal\"></td>" + "</tr></table>";
					k += 1;
				}
			}
			else if (action.equals("remove"))
			{
				if ((k % 2) != 0)
				{
					HTML_MESSAGE += "<BR1><table border=0 bgcolor=333333>";
				}
				else
				{
					HTML_MESSAGE += "<BR1><table border=0 bgcolor=000000>";
				}
				HTML_MESSAGE += "<tr><td width=35>" + getSkillIconHtml(id, level) + "</td><td fixwidth=170>" + name + "</td><td><button value=\"Remove\" action=\"bypass -h Quest " + QUEST_LOADING_INFO + " remove_buff " + scheme + "_" + id + "_" + level + " " + page + " " + TOTAL_BUFF + "\" width=75 height=21   back=\"L2UI_ch3.Btn1_normalOn\" fore=\"L2UI_ch3.Btn1_normal\"></td>" + "</table>";
				k += 1;
			}
		}
		HTML_MESSAGE += "<br><br><button value=\"Back\" action=\"bypass -h Quest " + QUEST_LOADING_INFO + " manage_scheme_select " + scheme + " x x\" width=75 height=21   back=\"L2UI_ch3.Btn1_normalOn\" fore=\"L2UI_ch3.Btn1_normal\">" + "<button value=\"Home\" action=\"bypass -h Quest " + QUEST_LOADING_INFO + " redirect main 0 0\" width=75 height=21   back=\"L2UI_ch3.Btn1_normalOn\" fore=\"L2UI_ch3.Btn1_normal\">" + "<br><font color=303030>" + TITLE_NAME + "</font></center></body></html>";
		return HTML_MESSAGE;
	}

Edited September 23, 2014 by orphangirl

SweeTs · September 22, 2014

So find that bypass responsible for your "scheme" button and do the same. You can also add a check inside the method, like

            if (action.equals("add"))
            {
                if (player.getInventory().getItemsByItemId(57) == null)
                     return;

                HTML_MESSAGE += "You can add <font color=LEVEL>" + (MAX_SCHEME_BUFFS - BUFF_COUNT) + "</font> Buffs and <font color=LEVEL>" + (MAX_SCHEME_DANCES - DANCE_SONG) + "</font> Dances more!";
                String QUERY = "SELECT * FROM npcbuffer_buff_list WHERE buffType IN (" + generateQuery(BUFF_COUNT, DANCE_SONG) + ") AND canUse=1 ORDER BY Buff_Class ASC, id";
                PreparedStatement getBuffCount = con.prepareStatement(QUERY);
                ResultSet rss = getBuffCount.executeQuery();
                while (rss.next())
                {
                    String name = SkillTable.getInstance().getInfo(rss.getInt("buffId"), rss.getInt("buffLevel")).getName();
                    name = name.replace(" ", "+");
                    buffList.add(name + "_" + rss.getInt("buffId") + "_" + rss.getInt("buffLevel"));
                }
            }
)

Else, you can hardcode it in another way, like if player dont have the item, send him normal.htm (with 2 category buffs). If player has the item then send him premium.htm (with 4 category buffs). You got the main point, now just add the checks @ correct places :P

Edited September 22, 2014 by SweeTs

SweeTs · September 22, 2014

Well, it's better to block them when they speak to the npc. For example, when you speak to the npc and press "buffs" to open the buffer or w/e, the bypass looks like this

        else if (currentCommand.startsWith("buffs"))
        {
            showGiveBuffsWindow(player, st.nextToken());
        }

Where showGiveBuffsWindow is like your viewAllSchemeBuffs, so if you want to block players who dont have X item, you can do it like that

        else if (currentCommand.startsWith("buffs"))
        {
            if (player.getInventory().getItemsByItemId(57) == null)
                player.sendMessage("Haaa, you can not use my services.");
            else
                showGiveBuffsWindow(player, st.nextToken());
        }

or vice versa

        else if (currentCommand.startsWith("buffs"))
        {
            if (player.getInventory().getItemsByItemId(57) != null)
                showGiveBuffsWindow(player, st.nextToken());
            else
                player.sendMessage("Haaa, you can not use my services.");
        }

Edited September 22, 2014 by SweeTs

orphangirl · September 22, 2014

Thank you for reply!

I understand you, but I already made a change when you talk to the npc.

If a character without that item click on the buffer, he will see 2 categories.

If a character with that item click on the buffer, he will see 4 categories.

Both characters can see scheme section.

But now, if the character WITHOUT item click add buffs on scheme, he can add buffs from the other 2 categories(from that 4 catergories with item).

That's why I try to edit that section.

orphangirl · September 22, 2014

When I add this in my code:

player.getInventory().getItemsByItemId(here I insert my item id) == null

I get this error:

player cannot be resolved.

Example:

if (action.equals("add"))
			{
			.......	THIS IS JUST FOR EXAMPLE
                                if (player.getInventory.getItemsByItemId(hereIinsertitemid) == null)
                                ...........
                                HTML_MESSAGE += "You can add <font color=LEVEL>" + (MAX_SCHEME_BUFFS - BUFF_COUNT) + "</font> Buffs and <font color=LEVEL>" + (MAX_SCHEME_DANCES - DANCE_SONG) + "</font> Dances more!";
				String QUERY = "SELECT * FROM npcbuffer_buff_list WHERE buffType IN (" + generateQuery(BUFF_COUNT, DANCE_SONG) + ") AND canUse=1 ORDER BY Buff_Class ASC, id";
				PreparedStatement getBuffCount = con.prepareStatement(QUERY);
				ResultSet rss = getBuffCount.executeQuery();
				while (rss.next())
				{
					String name = SkillTable.getInstance().getInfo(rss.getInt("buffId"), rss.getInt("buffLevel")).getName();
					name = name.replace(" ", "+");
					buffList.add(name + "_" + rss.getInt("buffId") + "_" + rss.getInt("buffLevel"));
				}

Edited September 23, 2014 by orphangirl

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