Add Kourend Library plugin

runelite-api/src/main/java/net/runelite/api/AnimationID.java

@@ -103,6 +103,7 @@ public final class AnimationID
 	public static final int HERBLORE_POTIONMAKING = 363; //used for both herb and secondary
 	public static final int MAGIC_CHARGING_ORBS = 726;
 	public static final int BURYING_BONES = 827;
+	public static final int LOOKING_INTO = 832;
 
 	// NPC animations
 	public static final int TZTOK_JAD_MAGIC_ATTACK = 2656;

runelite-api/src/main/java/net/runelite/api/Point3D.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.api;
+
+import lombok.Value;
+import net.runelite.api.Point;
+
+@Value
+public class Point3D
+{
+	private final int X, Y, Z;
+
+	public Point toPoint()
+	{
+		return new Point(X, Y);
+	}
+}

runelite-api/src/main/java/net/runelite/api/widgets/WidgetID.java

@@ -66,6 +66,7 @@ public class WidgetID
 	public static final int PUZZLE_BOX_GROUP_ID = 306;
 	public static final int NIGHTMARE_ZONE_GROUP_ID = 202;
 	public static final int BLAST_FURNACE_GROUP_ID = 474;
+	public static final int LIBRARY_FIND_GROUP_ID = 193;
 
 	static class WorldMap
 	{
@@ -287,4 +288,10 @@ public class WidgetID
 	{
 		static final int VISIBLE_BOX = 4;
 	}
+
+	static class DialogLibrary
+	{
+		static final int ITEM = 0;
+		static final int TEXT = 1;
+	}
 }

runelite-api/src/main/java/net/runelite/api/widgets/WidgetInfo.java

@@ -120,6 +120,9 @@ public enum WidgetInfo
 	COMBAT_SPELL_ICON(WidgetID.COMBAT_GROUP_ID, WidgetID.Combat.SPELL_ICON),
 	COMBAT_SPELL_TEXT(WidgetID.COMBAT_GROUP_ID, WidgetID.Combat.SPELL_TEXT),
 
+	DIALOG_LIBRARY_FIND(WidgetID.LIBRARY_FIND_GROUP_ID, WidgetID.DialogLibrary.ITEM),
+	DIALOG_LIBRARY_FIND_TEXT(WidgetID.LIBRARY_FIND_GROUP_ID, WidgetID.DialogLibrary.TEXT),
+
 	DIALOG_NPC_NAME(WidgetID.DIALOG_NPC_GROUP_ID, WidgetID.DialogNPC.NAME),
 	DIALOG_NPC_TEXT(WidgetID.DIALOG_NPC_GROUP_ID, WidgetID.DialogNPC.TEXT),
 	DIALOG_NPC_HEAD_MODEL(WidgetID.DIALOG_NPC_GROUP_ID, WidgetID.DialogNPC.HEAD_MODEL),

runelite-client/src/main/java/net/runelite/client/plugins/kourendlibrary/Book.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.kourendlibrary;
+
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import javax.imageio.ImageIO;
+import lombok.Getter;
+import net.runelite.api.ItemID;
+
+public enum Book
+{
+	DARK_MANUSCRIPT_13514(ItemID.DARK_MANUSCRIPT),
+	DARK_MANUSCRIPT_13515(ItemID.DARK_MANUSCRIPT_13515),
+	DARK_MANUSCRIPT_13516(ItemID.DARK_MANUSCRIPT_13516),
+	DARK_MANUSCRIPT_13517(ItemID.DARK_MANUSCRIPT_13517),
+	DARK_MANUSCRIPT_13518(ItemID.DARK_MANUSCRIPT_13518),
+	DARK_MANUSCRIPT_13519(ItemID.DARK_MANUSCRIPT_13519),
+	DARK_MANUSCRIPT_13520(ItemID.DARK_MANUSCRIPT_13520),
+	DARK_MANUSCRIPT_13521(ItemID.DARK_MANUSCRIPT_13521),
+	DARK_MANUSCRIPT_13522(ItemID.DARK_MANUSCRIPT_13522),
+	DARK_MANUSCRIPT_13523(ItemID.DARK_MANUSCRIPT_13523),
+
+	RADAS_CENSUS(ItemID.RADAS_CENSUS, "Rada's Census", "Census of King Rada III, by Matthias Vorseth."),
+	RICKTORS_DIARY_7(ItemID.RICKTORS_DIARY_7, "Ricktor's Diary 7", "Diary of Steklan Ricktor, volume 7."),
+	EATHRAM_RADA_EXTRACT(ItemID.EATHRAM__RADA_EXTRACT, "Eathram & Rada extract", "An extract from Eathram & Rada, by Anonymous."),
+	KILLING_OF_A_KING(ItemID.KILLING_OF_A_KING, "Killing of a King", "Killing of a King, by Griselle."),
+	HOSIDIUS_LETTER(ItemID.HOSIDIUS_LETTER, "Hosidius Letter", "A letter from Lord Hosidius to the Council of Elders."),
+	WINTERTODT_PARABLE(ItemID.WINTERTODT_PARABLE, "Wintertodt Parable", "The Parable of the Wintertodt, by Anonymous."),
+	TWILL_ACCORD(ItemID.TWILL_ACCORD, "Twill Accord", "The Royal Accord of Twill."),
+	BYRNES_CORONATION_SPEECH(ItemID.BYRNES_CORONATION_SPEECH, "Byrnes Coronation Speech", "Speech of King Byrne I, on the occasion of his coronation."),
+	IDEOLOGY_OF_DARKNESS(ItemID.IDEOLOGY_OF_DARKNESS, "The Ideology of Darkness", "The Ideology of Darkness, by Philophaire."),
+	RADAS_JOURNEY(ItemID.RADAS_JOURNEY, "Rada's Journey", "The Journey of Rada, by Griselle."),
+	TRANSVERGENCE_THEORY(ItemID.TRANSVERGENCE_THEORY, "Transvergence Theory", "The Theory of Transvergence, by Amon Ducot."),
+	TRISTESSAS_TRAGEDY(ItemID.TRISTESSAS_TRAGEDY, "Tristessa's Tradgedy", "The Tragedy of Tristessa."),
+	TREACHERY_OF_ROYALTY(ItemID.TREACHERY_OF_ROYALTY, "The Treachery of Royalty", "The Treachery of Royalty, by Professor Answith."),
+	TRANSPORTATION_INCANTATIONS(ItemID.TRANSPORTATION_INCANTATIONS, "Transportation Incantations", "Transportation Incantations, by Amon Ducot."),
+	SOUL_JORUNEY(ItemID.SOUL_JOURNEY, "Soul Journey", "The Journey of Souls, by Aretha."),
+	VARLAMORE_ENVOY(ItemID.VARLAMORE_ENVOY, "Varlamore Envoy", "The Envoy to Varlamore, by Deryk Paulson.");
+
+	private static final Map<Integer, Book> BY_ID = buildById();
+
+	private static final Map<String, Book> BY_NAME = buildByName();
+
+	private static Map<Integer, Book> buildById()
+	{
+		HashMap<Integer, Book> byId = new HashMap<>();
+		for (Book b : Book.values())
+		{
+			byId.put(b.item, b);
+		}
+		return Collections.unmodifiableMap(byId);
+	}
+
+	private static final Map<String, Book> buildByName()
+	{
+		HashMap<String, Book> byName = new HashMap<>();
+		for (Book b : Book.values())
+		{
+			if (!b.isDarkManuscript)
+			{
+				byName.put(b.name, b);
+			}
+		}
+		return Collections.unmodifiableMap(byName);
+	}
+
+	public static Book byId(int id)
+	{
+		return BY_ID.get(id);
+	}
+
+	public static Book byName(String name)
+	{
+		return BY_NAME.get(name);
+	}
+
+	@Getter
+	private final int item;
+
+	@Getter
+	private final String name;
+
+	@Getter
+	private final String shortName;
+
+	@Getter
+	private final BufferedImage icon;
+
+	@Getter
+	private final boolean isDarkManuscript;
+
+	Book(int id, String shortName, String name)
+	{
+		this.item = id;
+		this.isDarkManuscript = false;
+		this.shortName = shortName;
+		this.name = name;
+		this.icon = getImage(Integer.toString(id));
+	}
+
+	Book(int id)
+	{
+		this.item = id;
+		this.isDarkManuscript = true;
+		this.name = "Dark Manuscript";
+		this.shortName = "Dark Manuscript";
+		this.icon = getImage(Integer.toString(id));
+	}
+
+	private static BufferedImage getImage(String name)
+	{
+		try
+		{
+			return ImageIO.read(Book.class.getResourceAsStream("items/" + name + ".png"));
+		}
+		catch (IOException | IllegalArgumentException e)
+		{
+			throw new RuntimeException("Cannot load book " + name, e);
+		}
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/kourendlibrary/BookPanel.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.kourendlibrary;
+
+import java.awt.Color;
+import javax.swing.GroupLayout;
+import javax.swing.ImageIcon;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import net.runelite.client.ui.FontManager;
+
+class BookPanel extends JPanel
+{
+	private JLabel location = new JLabel();
+
+	BookPanel(Book b)
+	{
+		GroupLayout layout = new GroupLayout(this);
+		this.setLayout(layout);
+
+		JLabel image = new JLabel(new ImageIcon(b.getIcon()));
+		JLabel name = new JLabel(b.getShortName());
+		location.setFont(FontManager.getRunescapeSmallFont());
+
+		layout.setVerticalGroup(layout.createParallelGroup()
+			.addComponent(image)
+			.addGroup(layout.createSequentialGroup()
+				.addComponent(name)
+				.addComponent(location)
+			)
+		);
+
+		layout.setHorizontalGroup(layout.createSequentialGroup()
+			.addComponent(image)
+			.addGap(8)
+			.addGroup(layout.createParallelGroup()
+				.addComponent(name)
+				.addComponent(location)
+			)
+		);
+
+		// AWT's Z order is weird. This put image at the back of the stack
+		setComponentZOrder(image, getComponentCount() - 1);
+	}
+
+	public void setLocation(String location)
+	{
+		this.location.setText(location);
+	}
+
+	public void setIsTarget(boolean target)
+	{
+		location.setForeground(target ? Color.GREEN : Color.WHITE);
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/kourendlibrary/Bookcase.java

@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.kourendlibrary;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+import lombok.Getter;
+import net.runelite.api.Point3D;
+
+class Bookcase
+{
+	public Bookcase(Point3D location)
+	{
+		this.location = location;
+		this.index = new ArrayList<>();
+	}
+
+	@Getter
+	private final Point3D location;
+
+	@Getter
+	private final List<Integer> index;
+
+	@Getter
+	private boolean isBookSet;
+
+	/**
+	 * Book in this bookcase as found by the player.
+	 * Will be correct as long as isBookSet is true, unless the library has reset;
+	 */
+	@Getter
+	private Book book;
+
+	/**
+	 * Books that can be in this slot. Will only be populated if library.state != SolvedState.NO_DATA
+	 */
+	@Getter
+	private Set<Book> possibleBooks = new HashSet<>();
+
+	public void clearBook()
+	{
+		book = null;
+		isBookSet = false;
+	}
+
+	public void setBook(Book book)
+	{
+		this.book = book;
+		this.isBookSet = true;
+	}
+
+	public String getLocationString()
+	{
+		StringBuilder b = new StringBuilder();
+
+		boolean north = location.getY() > 3815;
+		boolean west = location.getX() < 1625;
+		if (north && west)
+		{
+			b.append("Northwest");
+		}
+		else if (north)
+		{
+			b.append("Northeast");
+		}
+		else if (west)
+		{
+			b.append("Southwest");
+		}
+		else
+		{
+			b.append("Center");
+		}
+
+		b.append(" ");
+
+		switch (location.getZ())
+		{
+			case 0:
+				b.append("ground floor");
+				break;
+			case 1:
+				b.append("middle floor");
+				break;
+			case 2:
+				b.append("top floor");
+				break;
+		}
+
+		if (KourendLibraryPlugin.debug)
+		{
+			b.append(" ").append(index.stream().map(Object::toString).collect(Collectors.joining(", ")));
+		}
+		return b.toString();
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/kourendlibrary/KourendLibraryOverlay.java

@@ -0,0 +1,227 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.kourendlibrary;
+
+import com.google.inject.Inject;
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.FontMetrics;
+import java.awt.Graphics2D;
+
+import java.awt.Polygon;
+import java.awt.geom.Rectangle2D;
+import java.util.List;
+import java.util.Objects;
+import java.util.Set;
+import java.util.stream.Collectors;
+import net.runelite.api.Client;
+import net.runelite.api.Perspective;
+import net.runelite.api.Player;
+import net.runelite.api.Point;
+import net.runelite.api.Point3D;
+import net.runelite.client.ui.overlay.Overlay;
+import net.runelite.client.ui.overlay.OverlayLayer;
+import net.runelite.client.ui.overlay.OverlayPosition;
+import net.runelite.client.ui.overlay.OverlayUtil;
+
+import static net.runelite.api.Perspective.getCanvasTilePoly;
+
+public class KourendLibraryOverlay extends Overlay
+{
+	private final static Point LIBRARY_CENTER = new Point(1632, 3807);
+	private final static int MAXIMUM_DISTANCE = 24;
+	private final static int ROUGH_ENABLE_DISTANCE = 45;
+
+	private final Library library;
+	private final Client client;
+
+	@Inject
+	KourendLibraryOverlay(Library library, Client client)
+	{
+		this.library = library;
+		this.client = client;
+
+		setPosition(OverlayPosition.DYNAMIC);
+		setLayer(OverlayLayer.ABOVE_SCENE);
+	}
+
+	@Override
+	public Dimension render(Graphics2D g, java.awt.Point parent)
+	{
+		Player player = client.getLocalPlayer();
+		if (player == null)
+		{
+			return null;
+		}
+
+		Point playerLoc = player.getWorldLocation();
+
+		if (playerLoc.distanceTo(LIBRARY_CENTER) > ROUGH_ENABLE_DISTANCE)
+		{
+			return null;
+		}
+
+		List<Bookcase> allBookcases = library.getBookcasesOnLevel(client.getPlane());
+
+		if (allBookcases == null)
+		{
+			return null;
+		}
+
+		for (Bookcase bookcase : allBookcases)
+		{
+			// AABB
+			Point3D caseLoc = bookcase.getLocation();
+			if (Math.abs(playerLoc.getX() - caseLoc.getX()) > MAXIMUM_DISTANCE
+				|| Math.abs(playerLoc.getY() - caseLoc.getY()) > MAXIMUM_DISTANCE)
+			{
+				continue;
+			}
+
+			Point localBookcase = Perspective.worldToLocal(client, caseLoc.toPoint());
+			Point screenBookcase = Perspective.worldToCanvas(client, localBookcase.getX(), localBookcase.getY(), caseLoc.getZ(), 25);
+
+			if (screenBookcase != null)
+			{
+				boolean bookIsKnown = bookcase.isBookSet();
+				Book book = bookcase.getBook();
+				Set<Book> possible = bookcase.getPossibleBooks();
+				if (bookIsKnown && book == null)
+				{
+					for (Book b : possible)
+					{
+						if (b != null && b.isDarkManuscript())
+						{
+							book = b;
+							break;
+						}
+					}
+				}
+
+				if (!bookIsKnown && possible.size() == 1)
+				{
+					book = possible.iterator().next();
+					bookIsKnown = true;
+				}
+				Color color = bookIsKnown ? Color.ORANGE : Color.WHITE;
+
+				// Render the poly on the floor
+				if (!(bookIsKnown && book == null) && (library.getState() == SolvedState.NO_DATA || book != null || possible.size() > 0))
+				{
+					Polygon poly = getCanvasTilePoly(client, localBookcase);
+					if (poly != null)
+					{
+						OverlayUtil.renderPolygon(g, poly, color);
+					}
+				}
+
+				int height = 0;
+				// If the book is singled out, render the text and the book's icon
+				if (bookIsKnown)
+				{
+					if (book != null)
+					{
+						FontMetrics fm = g.getFontMetrics();
+						Rectangle2D bounds = fm.getStringBounds(book.getShortName(), g);
+						height = (int) bounds.getHeight() + book.getIcon().getHeight() + 6;
+						Point textLoc = new Point(
+							(int) (screenBookcase.getX() - (bounds.getWidth() / 2)),
+							screenBookcase.getY() - (height / 2) + (int) bounds.getHeight()
+						);
+						OverlayUtil.renderTextLocation(g, textLoc, book.getShortName(), color);
+						g.drawImage(
+							book.getIcon(),
+							screenBookcase.getX() - (book.getIcon().getWidth() / 2),
+							screenBookcase.getY() + (height / 2) - book.getIcon().getHeight(),
+							null
+						);
+					}
+				}
+				else
+				{
+					// otherwise render up to 9 icons of the possible books in the bookcase in a square
+					final int BOOK_ICON_SIZE = 32;
+					Book[] books = possible.stream()
+						.filter(Objects::nonNull)
+						.limit(9)
+						.toArray(Book[]::new);
+					if (books.length > 1 && books.length <= 9)
+					{
+						int cols = (int) Math.ceil(Math.sqrt(books.length));
+						int rows = (int) Math.ceil((double) books.length / cols);
+						height = rows * BOOK_ICON_SIZE;
+						int xbase = screenBookcase.getX() - ((cols * BOOK_ICON_SIZE) / 2);
+						int ybase = screenBookcase.getY() - rows * BOOK_ICON_SIZE / 2;
+
+						for (int i = 0; i < books.length; i++)
+						{
+							int col = i % cols;
+							int row = i / cols;
+							int x = col * BOOK_ICON_SIZE;
+							int y = row * BOOK_ICON_SIZE;
+							if (row == rows - 1)
+							{
+								x += (BOOK_ICON_SIZE * (books.length % rows)) / 2;
+							}
+							g.drawImage(books[i].getIcon(), xbase + x, ybase + y, null);
+						}
+					}
+				}
+
+				// Draw the bookcase's ID on top
+				if (KourendLibraryPlugin.debug)
+				{
+					FontMetrics fm = g.getFontMetrics();
+					String str = bookcase.getIndex().stream().map(Object::toString).collect(Collectors.joining(", "));
+					Rectangle2D bounds = fm.getStringBounds(str, g);
+					Point textLoc = new Point((int) (screenBookcase.getX() - (bounds.getWidth() / 2)), screenBookcase.getY() - (height / 2));
+					OverlayUtil.renderTextLocation(g, textLoc, str, Color.WHITE);
+				}
+			}
+		}
+
+		// Render the customer's wanted book on their head and a poly under their feet
+		LibraryCustomer customer = library.getCustomer();
+		if (customer != null)
+		{
+			client.getNpcs().stream()
+				.filter(n -> n.getId() == customer.getId())
+				.forEach(n ->
+				{
+					Book b = library.getCustomerBook();
+					Point local = n.getLocalLocation();
+					Polygon poly = getCanvasTilePoly(client, local);
+					OverlayUtil.renderPolygon(g, poly, Color.WHITE);
+					Point screen = Perspective.worldToCanvas(client, local.getX(), local.getY(), client.getPlane(), n.getLogicalHeight());
+					if (screen != null)
+					{
+						g.drawImage(b.getIcon(), screen.getX() - (b.getIcon().getWidth() / 2), screen.getY() - b.getIcon().getHeight(), null);
+					}
+				});
+		}
+
+		return null;
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/kourendlibrary/KourendLibraryPanel.java

@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.kourendlibrary;
+
+import com.google.inject.Inject;
+import java.awt.GridBagConstraints;
+import java.awt.GridBagLayout;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import javax.inject.Singleton;
+import javax.swing.GroupLayout;
+import javax.swing.JButton;
+import javax.swing.JPanel;
+import javax.swing.SwingUtilities;
+import net.runelite.client.ui.PluginPanel;
+
+@Singleton
+public class KourendLibraryPanel extends PluginPanel
+{
+	@Inject
+	private Library library;
+
+	private final HashMap<Book, BookPanel> bookPanels = new HashMap<>();
+
+	void init()
+	{
+		GroupLayout layout = new GroupLayout(this);
+		setLayout(layout);
+
+		JPanel books = new JPanel(new GridBagLayout());
+		GridBagConstraints c = new GridBagConstraints();
+		c.fill = GridBagConstraints.HORIZONTAL;
+		c.weightx = 1;
+		c.gridx = 0;
+		c.gridy = 0;
+		Stream.of(Book.values())
+			.filter(b -> !b.isDarkManuscript())
+			.sorted(Comparator.comparing(Book::getShortName))
+			.forEach(b ->
+			{
+				BookPanel p = new BookPanel(b);
+				bookPanels.put(b, p);
+				books.add(p, c);
+				c.gridy++;
+			});
+
+		JButton reset = new JButton("Reset");
+		reset.addActionListener(e ->
+		{
+			library.reset();
+			update();
+		});
+
+		layout.setHorizontalGroup(layout.createParallelGroup()
+			.addComponent(books)
+			.addComponent(reset)
+		);
+		layout.setVerticalGroup(layout.createSequentialGroup()
+			.addComponent(books)
+			.addGap(4)
+			.addComponent(reset)
+		);
+
+		update();
+	}
+
+	void update()
+	{
+		SwingUtilities.invokeLater(() ->
+		{
+			Book customerBook = library.getCustomerBook();
+			for (Map.Entry<Book, BookPanel> b : bookPanels.entrySet())
+			{
+				b.getValue().setIsTarget(customerBook == b.getKey());
+			}
+
+			HashMap<Book, HashSet<String>> bookLocations = new HashMap<>();
+
+			for (Bookcase bookcase : library.getBookcases())
+			{
+				if (bookcase.getBook() != null)
+				{
+					bookLocations.computeIfAbsent(bookcase.getBook(), a -> new HashSet<>()).add(bookcase.getLocationString());
+				}
+				else
+				{
+					for (Book book : bookcase.getPossibleBooks())
+					{
+						if (book != null)
+						{
+							bookLocations.computeIfAbsent(book, a -> new HashSet<>()).add(bookcase.getLocationString());
+						}
+					}
+				}
+			}
+
+			for (Map.Entry<Book, BookPanel> e : bookPanels.entrySet())
+			{
+				HashSet<String> locs = bookLocations.get(e.getKey());
+				if (locs == null || locs.size() > 3)
+				{
+					e.getValue().setLocation("Unknown");
+				}
+				else
+				{
+					e.getValue().setLocation("<html>" + locs.stream().collect(Collectors.joining("<br>")) + "</html>");
+				}
+			}
+		});
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/kourendlibrary/KourendLibraryPlugin.java

@@ -0,0 +1,188 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.kourendlibrary;
+
+import com.google.common.eventbus.Subscribe;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import javax.imageio.ImageIO;
+import javax.inject.Inject;
+import lombok.extern.slf4j.Slf4j;
+import net.runelite.api.AnimationID;
+import net.runelite.api.ChatMessageType;
+import net.runelite.api.Client;
+import net.runelite.api.MenuAction;
+import net.runelite.api.Perspective;
+import net.runelite.api.Point;
+import net.runelite.api.Point3D;
+import net.runelite.api.events.AnimationChanged;
+import net.runelite.api.events.ChatMessage;
+import net.runelite.api.events.GameTick;
+import net.runelite.api.events.MenuOptionClicked;
+import net.runelite.api.widgets.Widget;
+import net.runelite.api.widgets.WidgetInfo;
+import net.runelite.client.plugins.Plugin;
+import net.runelite.client.plugins.PluginDescriptor;
+import net.runelite.client.ui.ClientUI;
+import net.runelite.client.ui.NavigationButton;
+import net.runelite.client.ui.overlay.Overlay;
+
+@PluginDescriptor(
+	name = "Kourend Library"
+)
+@Slf4j
+public class KourendLibraryPlugin extends Plugin
+{
+	final static boolean debug = false;
+
+	@Inject
+	private ClientUI ui;
+
+	@Inject
+	private Client client;
+
+	@Inject
+	private Library library;
+
+	@Inject
+	private KourendLibraryOverlay overlay;
+
+	private KourendLibraryPanel panel;
+	private NavigationButton navButton;
+
+	private Point3D lastBookcaseClick = null;
+	private Point3D lastBookcaseAnimatedOn = null;
+
+	@Override
+	protected void startUp() throws Exception
+	{
+		panel = injector.getInstance(KourendLibraryPanel.class);
+		panel.init();
+
+		navButton = new NavigationButton(
+			"Kourend Library",
+			ImageIO.read(Book.class.getResourceAsStream("panel_icon.png")),
+			() -> panel
+		);
+
+		ui.getPluginToolbar().addNavigation(navButton);
+	}
+
+	@Override
+	protected void shutDown()
+	{
+		ui.getPluginToolbar().removeNavigation(navButton);
+	}
+
+	@Override
+	public Overlay getOverlay()
+	{
+		return overlay;
+	}
+
+	@Subscribe
+	private void onMenuOptionClicked(MenuOptionClicked menuOpt)
+	{
+		if (MenuAction.GAME_OBJECT_FIRST_OPTION == menuOpt.getMenuAction() && menuOpt.getMenuTarget().contains("Bookshelf"))
+		{
+			Point worldPoint = Perspective.regionToWorld(client, new Point(menuOpt.getId() & 127, menuOpt.getId() >> 7 & 127));
+			lastBookcaseClick = new Point3D(worldPoint.getX(), worldPoint.getY(), client.getPlane());
+		}
+	}
+
+	@Subscribe
+	private void onAnimationChanged(AnimationChanged anim)
+	{
+		if (anim.getActor() == client.getLocalPlayer() && anim.getActor().getAnimation() == AnimationID.LOOKING_INTO)
+		{
+			lastBookcaseAnimatedOn = lastBookcaseClick;
+		}
+	}
+
+	@Subscribe
+	public void onChatMessage(ChatMessage event)
+	{
+		if (lastBookcaseAnimatedOn != null && event.getType() == ChatMessageType.SERVER)
+		{
+			if (event.getMessage().equals("You don't find anything useful here."))
+			{
+				library.mark(lastBookcaseAnimatedOn, null);
+				panel.update();
+				lastBookcaseAnimatedOn = null;
+			}
+		}
+	}
+
+	private static final Pattern BOOK_EXTRACTOR = Pattern.compile("'<col=0000ff>(.*)</col>'");
+	private static final Pattern TAG_MATCHER = Pattern.compile("(<[^>]*>)");
+
+	@Subscribe
+	void onTick(GameTick tick)
+	{
+		if (lastBookcaseAnimatedOn != null)
+		{
+			Widget find = client.getWidget(WidgetInfo.DIALOG_LIBRARY_FIND);
+			if (find != null)
+			{
+				Book book = Book.byId(find.getItemId());
+				if (book != null)
+				{
+					library.mark(lastBookcaseAnimatedOn, book);
+					panel.update();
+					lastBookcaseAnimatedOn = null;
+				}
+			}
+		}
+
+		Widget npcHead = client.getWidget(WidgetInfo.DIALOG_NPC_HEAD_MODEL);
+		if (npcHead != null)
+		{
+			LibraryCustomer cust = LibraryCustomer.getById(npcHead.getModelId());
+			if (cust != null)
+			{
+				Widget textw = client.getWidget(WidgetInfo.DIALOG_NPC_TEXT);
+				String text = textw.getText();
+				Matcher m = BOOK_EXTRACTOR.matcher(text);
+				if (m.find())
+				{
+					String bookName = TAG_MATCHER.matcher(m.group(1).replace("<br>", " ")).replaceAll("");
+					Book book = Book.byName(bookName);
+					if (book == null)
+					{
+						log.warn("Book '{}' is not recognised", bookName);
+						return;
+					}
+					library.setCustomer(cust, book);
+					panel.update();
+				}
+				else if (text.contains("You can have this other book") || text.contains("please accept a token of my thanks.") || text.contains("Thanks, I'll get on with reading it."))
+				{
+					library.setCustomer(null, null);
+					panel.update();
+				}
+			}
+		}
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/kourendlibrary/Library.java

@@ -0,0 +1,800 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.kourendlibrary;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.IntStream;
+import javax.inject.Singleton;
+import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;
+import net.runelite.api.Point3D;
+
+import static net.runelite.client.plugins.kourendlibrary.Book.*;
+
+/**
+ * Library represents a instance of the Kourend/Arceuus House library.
+ * <p>
+ * The library changes the locations of it's books every 60-90 minutes.
+ * Of the 554 bookcases in the library, only 346 of them can ever have books.
+ * 6 of the bookcases in the south-west corner of the top floor are duplicated.
+ * These 6 bookcases are not handled 100% correctly due to their low chance
+ * of being used to train the predictor.
+ * <p>
+ * Each of the 352 bookcase slots "Bookcase"s has an index which is used to
+ * place the book inside of them. The game chooses one of the 5 sequences and a
+ * bookcase starting index, then places a book from the sequence into every 13th
+ * bookcase, by index. Each sequence contains 26 Books, consisting of 16 books
+ * and 10 dark manuscripts. You can only get one dark manuscript at a time, though
+ * they are all placed into shelves.
+ */
+@Singleton
+@Slf4j
+public class Library
+{
+	private final Map<Point3D, Bookcase> byPoint = new HashMap<>();
+	private final Map<Integer, ArrayList<Bookcase>> byLevel = new HashMap<>();
+	private final List<Bookcase> byIndex = new ArrayList<>();
+
+	private final List<List<Book>> sequences = populateSequences();
+
+	private final int step;
+
+	@Getter
+	private SolvedState state;
+
+	@Getter
+	private Book customerBook;
+
+	@Getter
+	private LibraryCustomer customer;
+
+	Library()
+	{
+		populateBooks();
+		step = byIndex.size() / Book.values().length;
+		reset();
+	}
+
+	public synchronized List<Bookcase> getBookcasesOnLevel(int z)
+	{
+		return Collections.unmodifiableList(byLevel.get(z));
+	}
+
+	public synchronized List<Bookcase> getBookcases()
+	{
+		return Collections.unmodifiableList(byIndex);
+	}
+
+	public void setCustomer(LibraryCustomer customer, Book book)
+	{
+		this.customer = customer;
+		this.customerBook = book;
+	}
+
+	public synchronized void reset()
+	{
+		state = SolvedState.NO_DATA;
+		for (Bookcase b : byIndex)
+		{
+			b.clearBook();
+			b.getPossibleBooks().clear();
+		}
+		log.info("Library is now reset");
+	}
+
+	public synchronized void mark(Point3D loc, Book book)
+	{
+		Bookcase bookcase = byPoint.get(loc);
+		if (bookcase == null)
+		{
+			log.debug("Requested non-existent bookcase at {}", loc);
+			return;
+		}
+
+		if (bookcase.isBookSet())
+		{
+			// Bookcase is set from a previous mark
+			// Check for a mismatch, unless it is now null and had a dark manuscript
+			if (book != bookcase.getBook() && !(book == null && bookcase.getBook().isDarkManuscript()))
+			{
+				reset();
+			}
+		}
+		else if (state != SolvedState.NO_DATA)
+		{
+			// We know all of the possible things in this shelf.
+			if (book != null)
+			{
+				// Check to see if our guess is wrong
+				if (!bookcase.getPossibleBooks().contains(book))
+				{
+					reset();
+				}
+			}
+		}
+
+		// Everything is known, nothing to do
+		if (state == SolvedState.COMPLETE)
+		{
+			return;
+		}
+
+		log.info("Setting bookcase {} to {}", bookcase.getIndex(), book);
+		for (; ; )
+		{
+			bookcase.setBook(book);
+
+			// Basing the sequences on null is not supported, though possible
+			if (book == null)
+			{
+				return;
+			}
+
+			// This is one of the 6 bookcases with 2 ids. Not fully supported.
+			if (bookcase.getIndex().size() != 1)
+			{
+				return;
+			}
+
+			int bookcaseIndex = bookcase.getIndex().get(0);
+
+			state = SolvedState.INCOMPLETE;
+
+			// Map each sequence to the number of bookcases that match the sequence
+			// return 0 if it is a mismatch.
+			// Keep in mind that Bookcases with dark manuscripts may be set to null.
+			int[] certainty = sequences.stream().mapToInt(sequence ->
+			{
+				int zero = getBookcaseZeroIndexForSequenceWithBook(sequence, bookcaseIndex, book);
+
+				int found = 0;
+				for (int i = 0; i < byIndex.size(); i++)
+				{
+					int ai = (i + zero) % byIndex.size();
+					Bookcase iBookcase = byIndex.get(ai);
+					if (i % step == 0)
+					{
+						int seqI = i / step;
+						if (iBookcase.isBookSet() && seqI < sequence.size())
+						{
+							Book seqBook = sequence.get(seqI);
+							boolean isSeqManuscript = seqBook == null || seqBook.isDarkManuscript();
+							if (!((isSeqManuscript && iBookcase.getBook() == null) || (iBookcase.getBook() == seqBook)))
+							{
+								log.debug("Bailing @ i={} ai={} {}; {} != {}", i, ai, iBookcase.getIndex(), iBookcase.getBook(), seqBook);
+								found = 0;
+								break;
+							}
+							found++;
+						}
+					}
+					else
+					{
+						// Only bail if this isn't a double bookcase
+						if (iBookcase.isBookSet() && iBookcase.getBook() != null && iBookcase.getIndex().size() == 1)
+						{
+							log.debug("Bailing @ i={} ai={} {}; {} is set", i, ai, iBookcase.getIndex(), iBookcase.getBook());
+							found = 0;
+							break;
+						}
+					}
+				}
+				return found;
+			}).toArray();
+			log.info("Certainty is now {}", certainty);
+
+			for (Bookcase b : byIndex)
+			{
+				b.getPossibleBooks().clear();
+			}
+
+			// Write the most likely sequences onto the bookcases
+			int max = IntStream.of(certainty).max().getAsInt();
+
+			// We have books set, but 0 sequences match, Something is wrong, reset.
+			if (max == 0)
+			{
+				reset();
+				continue;
+			}
+
+			IntStream.range(0, sequences.size())
+				.filter(i -> certainty[i] == max)
+				.forEach(isequence ->
+				{
+					List<Book> sequence = sequences.get(isequence);
+					int zero = getBookcaseZeroIndexForSequenceWithBook(sequence, bookcaseIndex, book);
+
+					for (int i = 0; i < byIndex.size(); i++)
+					{
+						int ai = (i + zero) % byIndex.size();
+						Bookcase iBookcase = byIndex.get(ai);
+						if (iBookcase.getBook() == null)
+						{
+							int iseq = i / step;
+							if (i % step == 0 && iseq < sequence.size())
+							{
+								Book seqBook = sequence.get(iseq);
+								iBookcase.getPossibleBooks().add(seqBook);
+							}
+						}
+					}
+				});
+			if (IntStream.range(0, certainty.length).filter(i -> certainty[i] == max).count() == 1)
+			{
+				state = SolvedState.COMPLETE;
+			}
+			return;
+		}
+	}
+
+	/**
+	 * Find the bookcase index that is index zero in the sequence, identifying by the book in bookcase
+	 */
+	private int getBookcaseZeroIndexForSequenceWithBook(List<Book> sequences, int bookcaseIndex, Book book)
+	{
+		int bookSequence = sequences.indexOf(book);
+		assert bookSequence >= 0;
+
+		bookcaseIndex -= step * bookSequence;
+		for (; bookcaseIndex < 0; )
+		{
+			bookcaseIndex += byIndex.size();
+		}
+		return bookcaseIndex;
+	}
+
+	private List<List<Book>> populateSequences()
+	{
+		List<List<Book>> books = Arrays.asList(
+			Arrays.asList(
+				DARK_MANUSCRIPT_13516,
+				KILLING_OF_A_KING,
+				DARK_MANUSCRIPT_13520,
+				IDEOLOGY_OF_DARKNESS,
+				RADAS_JOURNEY,
+				TRANSVERGENCE_THEORY,
+				TRISTESSAS_TRAGEDY,
+				DARK_MANUSCRIPT_13523,
+				DARK_MANUSCRIPT_13521,
+				RADAS_CENSUS,
+				TREACHERY_OF_ROYALTY,
+				HOSIDIUS_LETTER,
+				DARK_MANUSCRIPT_13519,
+				RICKTORS_DIARY_7,
+				DARK_MANUSCRIPT_13514,
+				EATHRAM_RADA_EXTRACT,
+				DARK_MANUSCRIPT_13522,
+				VARLAMORE_ENVOY,
+				WINTERTODT_PARABLE,
+				TWILL_ACCORD,
+				DARK_MANUSCRIPT_13515,
+				BYRNES_CORONATION_SPEECH,
+				DARK_MANUSCRIPT_13517,
+				SOUL_JORUNEY,
+				DARK_MANUSCRIPT_13518,
+				TRANSPORTATION_INCANTATIONS
+			),
+			Arrays.asList(
+				DARK_MANUSCRIPT_13516,
+				KILLING_OF_A_KING,
+				DARK_MANUSCRIPT_13520,
+				IDEOLOGY_OF_DARKNESS,
+				RADAS_JOURNEY,
+				TRANSVERGENCE_THEORY,
+				TRISTESSAS_TRAGEDY,
+				DARK_MANUSCRIPT_13523,
+				DARK_MANUSCRIPT_13521,
+				RADAS_CENSUS,
+				TREACHERY_OF_ROYALTY,
+				HOSIDIUS_LETTER,
+				VARLAMORE_ENVOY,
+				DARK_MANUSCRIPT_13519,
+				RICKTORS_DIARY_7,
+				DARK_MANUSCRIPT_13514,
+				EATHRAM_RADA_EXTRACT,
+				DARK_MANUSCRIPT_13522,
+				SOUL_JORUNEY,
+				WINTERTODT_PARABLE,
+				TWILL_ACCORD,
+				DARK_MANUSCRIPT_13515,
+				BYRNES_CORONATION_SPEECH,
+				DARK_MANUSCRIPT_13517,
+				DARK_MANUSCRIPT_13518,
+				TRANSPORTATION_INCANTATIONS
+			),
+			Arrays.asList(
+				RICKTORS_DIARY_7,
+				VARLAMORE_ENVOY,
+				DARK_MANUSCRIPT_13514,
+				EATHRAM_RADA_EXTRACT,
+				IDEOLOGY_OF_DARKNESS,
+				DARK_MANUSCRIPT_13516,
+				DARK_MANUSCRIPT_13521,
+				RADAS_CENSUS,
+				DARK_MANUSCRIPT_13515,
+				KILLING_OF_A_KING,
+				DARK_MANUSCRIPT_13520,
+				TREACHERY_OF_ROYALTY,
+				HOSIDIUS_LETTER,
+				DARK_MANUSCRIPT_13519,
+				BYRNES_CORONATION_SPEECH,
+				DARK_MANUSCRIPT_13517,
+				SOUL_JORUNEY,
+				DARK_MANUSCRIPT_13522,
+				WINTERTODT_PARABLE,
+				TWILL_ACCORD,
+				RADAS_JOURNEY,
+				TRANSVERGENCE_THEORY,
+				TRISTESSAS_TRAGEDY,
+				DARK_MANUSCRIPT_13523,
+				DARK_MANUSCRIPT_13518,
+				TRANSPORTATION_INCANTATIONS
+			),
+			Arrays.asList(
+				RADAS_CENSUS,
+				DARK_MANUSCRIPT_13522,
+				RICKTORS_DIARY_7,
+				DARK_MANUSCRIPT_13514,
+				EATHRAM_RADA_EXTRACT,
+				DARK_MANUSCRIPT_13516,
+				KILLING_OF_A_KING,
+				DARK_MANUSCRIPT_13520,
+				HOSIDIUS_LETTER,
+				DARK_MANUSCRIPT_13519,
+				DARK_MANUSCRIPT_13521,
+				WINTERTODT_PARABLE,
+				TWILL_ACCORD,
+				DARK_MANUSCRIPT_13515,
+				BYRNES_CORONATION_SPEECH,
+				DARK_MANUSCRIPT_13517,
+				IDEOLOGY_OF_DARKNESS,
+				RADAS_JOURNEY,
+				TRANSVERGENCE_THEORY,
+				TRISTESSAS_TRAGEDY,
+				DARK_MANUSCRIPT_13523,
+				TREACHERY_OF_ROYALTY,
+				DARK_MANUSCRIPT_13518,
+				TRANSPORTATION_INCANTATIONS,
+				SOUL_JORUNEY,
+				VARLAMORE_ENVOY
+			),
+			Arrays.asList(
+				RADAS_CENSUS,
+				TRANSVERGENCE_THEORY,
+				TREACHERY_OF_ROYALTY,
+				RADAS_JOURNEY,
+				KILLING_OF_A_KING,
+				DARK_MANUSCRIPT_13520,
+				VARLAMORE_ENVOY,
+				DARK_MANUSCRIPT_13522,
+				BYRNES_CORONATION_SPEECH,
+				DARK_MANUSCRIPT_13517,
+				HOSIDIUS_LETTER,
+				DARK_MANUSCRIPT_13516,
+				DARK_MANUSCRIPT_13519,
+				TRISTESSAS_TRAGEDY,
+				DARK_MANUSCRIPT_13523,
+				DARK_MANUSCRIPT_13521,
+				RICKTORS_DIARY_7,
+				DARK_MANUSCRIPT_13514,
+				IDEOLOGY_OF_DARKNESS,
+				WINTERTODT_PARABLE,
+				TWILL_ACCORD,
+				SOUL_JORUNEY,
+				DARK_MANUSCRIPT_13515,
+				EATHRAM_RADA_EXTRACT,
+				DARK_MANUSCRIPT_13518,
+				TRANSPORTATION_INCANTATIONS
+			)
+		);
+
+		for (int i = 0; i < books.size(); i++)
+		{
+			assert new HashSet<>(books.get(i)).size() == books.get(i).size();
+			books.set(i, Collections.unmodifiableList(books.get(i)));
+		}
+		return Collections.unmodifiableList(books);
+	}
+
+	private void add(int x, int y, int z, int i)
+	{
+		// 'i' is added as a parameter for readability
+		Point3D p = new Point3D(x, y, z);
+		Bookcase b = byPoint.get(p);
+		if (b == null)
+		{
+			b = new Bookcase(p);
+			byPoint.put(p, b);
+			byLevel.computeIfAbsent(z, a -> new ArrayList<>()).add(b);
+		}
+		b.getIndex().add(i);
+		assert i == byIndex.size();
+		byIndex.add(b);
+	}
+
+	private void populateBooks()
+	{
+		add(1626, 3795, 0, 0);
+		add(1625, 3793, 0, 1);
+		add(1623, 3793, 0, 2);
+		add(1620, 3792, 0, 3);
+		add(1624, 3792, 0, 4);
+		add(1626, 3788, 0, 5);
+		add(1626, 3787, 0, 6);
+		add(1624, 3784, 0, 7);
+		add(1623, 3784, 0, 8);
+		add(1621, 3784, 0, 9);
+		add(1615, 3785, 0, 10);
+		add(1615, 3788, 0, 11);
+		add(1615, 3790, 0, 12);
+		add(1614, 3790, 0, 13);
+		add(1614, 3788, 0, 14);
+		add(1614, 3786, 0, 15);
+		add(1612, 3784, 0, 16);
+		add(1610, 3784, 0, 17);
+		add(1609, 3784, 0, 18);
+		add(1607, 3786, 0, 19);
+		add(1607, 3789, 0, 20);
+		add(1607, 3795, 0, 21);
+		add(1607, 3796, 0, 22);
+		add(1607, 3799, 0, 23);
+		add(1610, 3801, 0, 24);
+		add(1612, 3801, 0, 25);
+		add(1618, 3801, 0, 26);
+		add(1620, 3801, 0, 27);
+		add(1620, 3814, 0, 28);
+		add(1618, 3814, 0, 29);
+		add(1617, 3814, 0, 30);
+		add(1615, 3816, 0, 31);
+		add(1615, 3817, 0, 32);
+		add(1615, 3820, 0, 33);
+		add(1614, 3820, 0, 34);
+		add(1614, 3817, 0, 35);
+		add(1614, 3816, 0, 36);
+		add(1612, 3814, 0, 37);
+		add(1610, 3814, 0, 38);
+		add(1607, 3816, 0, 39);
+		add(1607, 3817, 0, 40);
+		add(1607, 3820, 0, 41);
+		add(1607, 3826, 0, 42);
+		add(1607, 3828, 0, 43);
+		add(1609, 3831, 0, 44);
+		add(1612, 3831, 0, 45);
+		add(1614, 3831, 0, 46);
+		add(1619, 3831, 0, 47);
+		add(1621, 3831, 0, 48);
+		add(1624, 3831, 0, 49);
+		add(1626, 3829, 0, 50);
+		add(1626, 3827, 0, 51);
+		add(1624, 3823, 0, 52);
+		add(1622, 3823, 0, 53);
+		add(1620, 3823, 0, 54);
+		add(1621, 3822, 0, 55);
+		add(1624, 3822, 0, 56);
+		add(1626, 3820, 0, 57);
+		add(1639, 3821, 0, 58);
+		add(1639, 3822, 0, 59);
+		add(1639, 3827, 0, 60);
+		add(1639, 3829, 0, 61);
+		add(1642, 3831, 0, 62);
+		add(1645, 3831, 0, 63);
+		add(1646, 3829, 0, 64);
+		add(1646, 3827, 0, 65);
+		add(1646, 3826, 0, 66);
+		add(1647, 3827, 0, 67);
+		add(1647, 3829, 0, 68);
+		add(1647, 3830, 0, 69);
+		add(1652, 3831, 0, 70);
+		add(1653, 3831, 0, 71);
+		add(1656, 3831, 0, 72);
+		add(1658, 3829, 0, 73);
+		add(1658, 3826, 0, 74);
+		add(1658, 3825, 0, 75);
+		add(1658, 3820, 0, 76);
+		add(1658, 3819, 0, 77);
+		add(1658, 3816, 0, 78);
+		add(1655, 3814, 0, 79);
+		add(1654, 3814, 0, 80);
+		add(1651, 3817, 0, 81);
+		add(1651, 3819, 0, 82);
+		add(1651, 3820, 0, 83);
+		add(1650, 3821, 0, 84);
+		add(1650, 3819, 0, 85);
+		add(1650, 3816, 0, 86);
+		add(1648, 3814, 0, 87);
+		add(1646, 3814, 0, 88);
+		add(1645, 3814, 0, 89);
+		add(1607, 3820, 1, 90);
+		add(1607, 3821, 1, 91);
+		add(1609, 3822, 1, 92);
+		add(1612, 3823, 1, 93);
+		add(1611, 3823, 1, 94);
+		add(1607, 3824, 1, 95);
+		add(1607, 3825, 1, 96);
+		add(1607, 3827, 1, 97);
+		add(1611, 3831, 1, 98);
+		add(1612, 3831, 1, 99);
+		add(1613, 3831, 1, 100);
+		add(1617, 3831, 1, 101);
+		add(1618, 3831, 1, 102);
+		add(1620, 3831, 1, 103);
+		add(1624, 3831, 1, 104);
+		add(1624, 3829, 1, 105);
+		add(1624, 3825, 1, 106);
+		add(1624, 3824, 1, 107);
+		add(1624, 3819, 1, 108);
+		add(1624, 3817, 1, 109);
+		add(1623, 3816, 1, 110);
+		add(1621, 3816, 1, 111);
+		add(1617, 3816, 1, 112);
+		add(1616, 3816, 1, 113);
+		add(1611, 3816, 1, 114);
+		add(1609, 3816, 1, 115);
+		add(1620, 3820, 1, 116);
+		add(1620, 3822, 1, 117);
+		add(1620, 3824, 1, 118);
+		add(1620, 3825, 1, 119);
+		add(1620, 3827, 1, 120);
+		add(1621, 3826, 1, 121);
+		add(1621, 3822, 1, 122);
+		add(1621, 3820, 1, 123);
+		add(1607, 3788, 1, 124);
+		add(1607, 3789, 1, 125);
+		add(1609, 3790, 1, 126);
+		add(1611, 3790, 1, 127);
+		add(1613, 3790, 1, 128);
+		add(1614, 3789, 1, 129);
+		add(1615, 3788, 1, 130);
+		add(1615, 3790, 1, 131);
+		add(1614, 3791, 1, 132);
+		add(1613, 3791, 1, 133);
+		add(1610, 3791, 1, 134);
+		add(1609, 3791, 1, 135);
+		add(1608, 3791, 1, 136);
+		add(1607, 3793, 1, 137);
+		add(1607, 3794, 1, 138);
+		add(1608, 3799, 1, 139);
+		add(1610, 3799, 1, 140);
+		add(1615, 3799, 1, 141);
+		add(1616, 3799, 1, 142);
+		add(1621, 3799, 1, 143);
+		add(1623, 3799, 1, 144);
+		add(1624, 3798, 1, 145);
+		add(1624, 3796, 1, 146);
+		add(1624, 3792, 1, 147);
+		add(1624, 3791, 1, 148);
+		add(1623, 3789, 1, 149);
+		add(1621, 3789, 1, 150);
+		add(1620, 3788, 1, 151);
+		add(1621, 3788, 1, 152);
+		add(1624, 3787, 1, 153);
+		add(1624, 3786, 1, 154);
+		add(1619, 3784, 1, 155);
+		add(1618, 3784, 1, 156);
+		add(1616, 3784, 1, 157);
+		add(1612, 3784, 1, 158);
+		add(1611, 3784, 1, 159);
+		add(1625, 3801, 1, 160);
+		add(1625, 3802, 1, 161);
+		add(1625, 3803, 1, 162);
+		add(1625, 3804, 1, 163);
+		add(1625, 3806, 1, 164);
+		add(1625, 3807, 1, 165);
+		add(1625, 3808, 1, 166);
+		add(1625, 3809, 1, 167);
+		add(1625, 3811, 1, 168);
+		add(1625, 3812, 1, 169);
+		add(1625, 3813, 1, 170);
+		add(1625, 3814, 1, 171);
+		add(1626, 3815, 1, 172);
+		add(1627, 3815, 1, 173);
+		add(1631, 3815, 1, 174);
+		add(1632, 3815, 1, 175);
+		add(1633, 3815, 1, 176);
+		add(1634, 3815, 1, 177);
+		add(1638, 3815, 1, 178);
+		add(1639, 3815, 1, 179);
+		add(1640, 3814, 1, 180);
+		add(1640, 3813, 1, 181);
+		add(1640, 3803, 1, 182);
+		add(1640, 3802, 1, 183);
+		add(1640, 3801, 1, 184);
+		add(1639, 3800, 1, 185);
+		add(1638, 3800, 1, 186);
+		add(1634, 3800, 1, 187);
+		add(1633, 3800, 1, 188);
+		add(1632, 3800, 1, 189);
+		add(1631, 3800, 1, 190);
+		add(1627, 3800, 1, 191);
+		add(1626, 3800, 1, 192);
+		add(1641, 3817, 1, 193);
+		add(1641, 3818, 1, 194);
+		add(1641, 3819, 1, 195);
+		add(1641, 3824, 1, 196);
+		add(1641, 3825, 1, 197);
+		add(1641, 3829, 1, 198);
+		add(1645, 3831, 1, 199);
+		add(1646, 3831, 1, 200);
+		add(1647, 3831, 1, 201);
+		add(1648, 3831, 1, 202);
+		add(1649, 3830, 1, 203);
+		add(1649, 3828, 1, 204);
+		add(1650, 3829, 1, 205);
+		add(1652, 3831, 1, 206);
+		add(1653, 3831, 1, 207);
+		add(1658, 3827, 1, 208);
+		add(1658, 3826, 1, 209);
+		add(1658, 3823, 1, 210);
+		add(1658, 3822, 1, 211);
+		add(1658, 3821, 1, 212);
+		add(1658, 3820, 1, 213);
+		add(1656, 3816, 1, 214);
+		add(1655, 3816, 1, 215);
+		add(1651, 3816, 1, 216);
+		add(1649, 3816, 1, 217);
+		add(1648, 3816, 1, 218);
+		add(1644, 3816, 1, 219);
+		add(1643, 3816, 1, 220);
+		add(1607, 3785, 2, 221);
+		add(1607, 3786, 2, 222);
+		add(1607, 3796, 2, 223);
+		add(1607, 3797, 2, 224);
+		add(1608, 3799, 2, 225);
+		add(1610, 3799, 2, 226);
+		add(1611, 3799, 2, 227);
+		add(1618, 3799, 2, 228);
+		add(1621, 3799, 2, 229);
+		add(1624, 3797, 2, 230);
+		add(1624, 3795, 2, 231);
+		add(1624, 3794, 2, 232);
+		add(1624, 3792, 2, 233);
+		add(1623, 3791, 2, 234);
+		add(1622, 3791, 2, 235);
+		add(1618, 3792, 2, 236);
+		add(1618, 3793, 2, 237);
+		add(1618, 3794, 2, 238);
+		add(1617, 3793, 2, 239);
+		add(1617, 3792, 2, 240);
+		add(1618, 3790, 2, 241);
+		add(1620, 3790, 2, 242);
+		add(1622, 3790, 2, 243);
+		add(1624, 3789, 2, 244);
+		add(1624, 3788, 2, 245);
+		add(1624, 3786, 2, 246);
+		add(1624, 3785, 2, 247);
+		add(1623, 3784, 2, 248);
+		add(1621, 3784, 2, 249);
+		add(1611, 3784, 2, 250);
+		add(1609, 3784, 2, 251);
+		add(1612, 3789, 2, 252);
+		add(1612, 3791, 2, 253);
+		add(1612, 3794, 2, 254);
+		add(1613, 3793, 2, 255);
+		add(1613, 3792, 2, 256);
+		add(1613, 3791, 2, 257);
+		add(1617, 3791, 2, 258);
+		add(1617, 3793, 2, 259);
+		add(1618, 3794, 2, 260);
+		add(1618, 3792, 2, 261);
+		add(1619, 3791, 2, 262);
+		add(1623, 3791, 2, 263);
+		add(1623, 3790, 2, 264);
+		add(1622, 3790, 2, 265);
+		add(1619, 3790, 2, 266);
+		add(1611, 3816, 2, 267);
+		add(1610, 3816, 2, 268);
+		add(1609, 3816, 2, 269);
+		add(1607, 3817, 2, 270);
+		add(1607, 3819, 2, 271);
+		add(1607, 3829, 2, 272);
+		add(1608, 3831, 2, 273);
+		add(1610, 3831, 2, 274);
+		add(1611, 3831, 2, 275);
+		add(1622, 3831, 2, 276);
+		add(1623, 3831, 2, 277);
+		add(1624, 3829, 2, 278);
+		add(1624, 3828, 2, 279);
+		add(1624, 3821, 2, 280);
+		add(1624, 3819, 2, 281);
+		add(1622, 3816, 2, 282);
+		add(1620, 3816, 2, 283);
+		add(1618, 3816, 2, 284);
+		add(1615, 3821, 2, 285);
+		add(1617, 3821, 2, 286);
+		add(1619, 3822, 2, 287);
+		add(1619, 3824, 2, 288);
+		add(1618, 3826, 2, 289);
+		add(1617, 3826, 2, 290);
+		add(1615, 3827, 2, 291);
+		add(1616, 3827, 2, 292);
+		add(1618, 3827, 2, 293);
+		add(1620, 3826, 2, 294);
+		add(1620, 3824, 2, 295);
+		add(1620, 3822, 2, 296);
+		add(1620, 3821, 2, 297);
+		add(1619, 3820, 2, 298);
+		add(1617, 3820, 2, 299);
+		add(1615, 3820, 2, 300);
+		add(1641, 3818, 2, 301);
+		add(1641, 3820, 2, 302);
+		add(1641, 3821, 2, 303);
+		add(1641, 3829, 2, 304);
+		add(1643, 3831, 2, 305);
+		add(1644, 3831, 2, 306);
+		add(1654, 3831, 2, 307);
+		add(1656, 3831, 2, 308);
+		add(1658, 3830, 2, 309);
+		add(1658, 3828, 2, 310);
+		add(1658, 3818, 2, 311);
+		add(1658, 3817, 2, 312);
+		add(1656, 3816, 2, 313);
+		add(1655, 3816, 2, 314);
+		add(1652, 3816, 2, 315);
+		add(1648, 3817, 2, 316);
+		add(1648, 3819, 2, 317);
+		add(1648, 3821, 2, 318);
+		add(1649, 3823, 2, 319);
+		add(1650, 3823, 2, 320);
+		add(1652, 3823, 2, 321);
+		add(1654, 3822, 2, 322);
+		add(1654, 3820, 2, 323);
+		add(1655, 3820, 2, 324);
+		add(1655, 3821, 2, 325);
+		add(1655, 3823, 2, 326);
+		add(1653, 3824, 2, 327);
+		add(1652, 3824, 2, 328);
+		add(1649, 3824, 2, 329);
+		add(1648, 3824, 2, 330);
+		add(1647, 3822, 2, 331);
+		add(1647, 3820, 2, 332);
+		add(1647, 3818, 2, 333);
+		add(1645, 3816, 2, 334);
+		add(1644, 3816, 2, 335);
+		add(1625, 3802, 2, 336);
+		add(1625, 3804, 2, 337);
+		add(1625, 3811, 2, 338);
+		add(1625, 3812, 2, 339);
+		add(1627, 3815, 2, 340);
+		add(1628, 3815, 2, 341);
+		add(1635, 3815, 2, 342);
+		add(1637, 3815, 2, 343);
+		add(1638, 3815, 2, 344);
+		add(1640, 3813, 2, 345);
+		add(1640, 3811, 2, 346);
+		add(1640, 3810, 2, 347);
+		add(1638, 3800, 2, 348);
+		add(1632, 3800, 2, 349);
+		add(1630, 3800, 2, 350);
+		add(1629, 3800, 2, 351);
+		add(1627, 3800, 2, 352);
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/kourendlibrary/LibraryCustomer.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.kourendlibrary;
+
+import java.util.HashMap;
+import java.util.Map;
+import lombok.Getter;
+
+import net.runelite.api.NpcID;
+
+public enum LibraryCustomer
+{
+	VILLIA(NpcID.VILLIA, "Villia"),
+	PROFESSOR_GRACKLEBONE(NpcID.PROFESSOR_GRACKLEBONE, "Prof. Gracklebone"),
+	Sam(NpcID.SAM_7049, "Sam");
+
+	@Getter
+	private final int id;
+
+	@Getter
+	private final String name;
+
+	private static final Map<Integer, LibraryCustomer> byId = buildIdMap();
+
+	LibraryCustomer(int id, String name)
+	{
+		this.id = id;
+		this.name = name;
+	}
+
+	public static LibraryCustomer getById(int id)
+	{
+		return byId.get(id);
+	}
+
+	private static Map<Integer, LibraryCustomer> buildIdMap()
+	{
+		Map<Integer, LibraryCustomer> byId = new HashMap<>();
+		for (LibraryCustomer c : values())
+		{
+			byId.put(c.id, c);
+		}
+		return byId;
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/kourendlibrary/SolvedState.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2018 Abex
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.kourendlibrary;
+
+public enum SolvedState
+{
+	NO_DATA,
+	INCOMPLETE,
+	COMPLETE;
+}