The great MCPQ Merge offensive

Fulfilled the lovely pull request #427 from @dragoso, which added in backing code content to HeavenMS.
Implemented structural changes for the Marriage wishlist, in order to receive, maintain and distribute gifts to spouses.
Added untradeable check on wishlist gift handler.
Adjusted CPQ drops to actually load from DB rathe than hard-coded.
Fixed CPQ "random disease to player/party" functionality not applying properly.
Adjusted how CPQ maps are generated. It directly loads a new area from WZ (this process should at least removes the player's spawned mobs) rather than reset the cache at every MCPQ creation.

src/server/MapleMarriage.java

@@ -0,0 +1,183 @@
+/*
+    This file is part of the HeavenMS MapleStory Server
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+package server;
+
+import client.MapleClient;
+import client.MapleCharacter;
+import client.inventory.Item;
+import client.inventory.ItemFactory;
+import client.inventory.MapleInventory;
+import client.inventory.MapleInventoryType;
+import client.inventory.manipulator.MapleInventoryManipulator;
+import scripting.event.EventInstanceManager;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+import scripting.event.EventManager;
+import tools.DatabaseConnection;
+import tools.Pair;
+
+/**
+ *
+ * @author Ronan
+ */
+public class MapleMarriage extends EventInstanceManager {
+    
+    public MapleMarriage(EventManager em, String name) {
+        super(em, name);
+    }
+    
+    public boolean giftItemToSpouse(int cid) {
+        return this.getIntProperty("wishlistSelection") == 0;
+    }
+
+    public List<String> getWishlistItems(boolean groom) {
+        String strItems = this.getProperty(groom ? "groomWishlist" : "brideWishlist");
+        if (strItems != null) {
+            return Arrays.asList(strItems.split("\r\n"));
+        }
+
+        return new LinkedList<>();
+    }
+
+    public void initializeGiftItems() {
+        List<Item> groomGifts = new ArrayList<>();
+        this.setObjectProperty("groomGiftlist", groomGifts);
+
+        List<Item> brideGifts = new ArrayList<>();
+        this.setObjectProperty("brideGiftlist", brideGifts);
+    }
+
+    public List<Item> getGiftItems(MapleClient c, boolean groom) {
+        c.tryacquireClient();
+        try {
+            List<Item> gifts = getGiftItemsList(groom);
+            synchronized (gifts) {
+                return new LinkedList<>(gifts);
+            }
+        } finally {
+            c.releaseClient();
+        }
+    }
+
+    private List<Item> getGiftItemsList(boolean groom) {
+        return (List<Item>) this.getObjectProperty(groom ? "groomGiftlist" : "brideGiftlist");
+    }
+
+    public Item getGiftItem(MapleClient c, boolean groom, int idx) {
+        try {
+            return getGiftItems(c, groom).get(idx);
+        } catch (IndexOutOfBoundsException e) {
+            return null;
+        }
+    }
+
+    public void addGiftItem(boolean groom, Item item) {
+        List<Item> gifts = getGiftItemsList(groom);
+        synchronized (gifts) {
+            gifts.add(item);
+        }
+    }
+
+    public void removeGiftItem(boolean groom, Item item) {
+        List<Item> gifts = getGiftItemsList(groom);
+        synchronized (gifts) {
+            gifts.remove(item);
+        }
+    }
+        
+    public Boolean isMarriageGroom(MapleCharacter chr) {
+        Boolean groom = null;
+        try {
+            int groomid = this.getIntProperty("groomId"), brideid = this.getIntProperty("brideId");
+            if (chr.getId() == groomid) {
+                groom = true;
+            } else if (chr.getId() == brideid) {
+                groom = false;
+            }
+        } catch (NumberFormatException nfe) {}
+
+        return groom;
+    }
+
+    public static boolean claimGiftItems(MapleClient c, MapleCharacter chr) {
+        List<Item> gifts = loadGiftItemsFromDb(c, chr.getId());
+        if (MapleInventory.checkSpot(chr, gifts)) {
+            try {
+                Connection con = DatabaseConnection.getConnection();
+                ItemFactory.MARRIAGE_GIFTS.saveItems(new LinkedList<Pair<Item, MapleInventoryType>>(), chr.getId(), con);
+                con.close();
+            } catch (SQLException sqle) {}
+
+            for (Item item : gifts) {
+                MapleInventoryManipulator.addFromDrop(chr.getClient(), item, false);
+            }
+
+            return true;
+        }
+
+        return false;
+    }
+        
+    public static List<Item> loadGiftItemsFromDb(MapleClient c, int cid) {
+        c.tryacquireClient();
+        try {
+            List<Item> items = new LinkedList<>();
+            try {
+                for (Pair<Item, MapleInventoryType> it : ItemFactory.MARRIAGE_GIFTS.loadItems(cid, false)) {
+                    items.add(it.getLeft());
+                }
+            } catch (SQLException sqle) {
+                sqle.printStackTrace();
+            }
+
+            return items;
+        } finally {
+            c.releaseClient();
+        }
+    }
+        
+    public void saveGiftItemsToDb(MapleClient c, boolean groom, int cid) {
+        MapleMarriage.saveGiftItemsToDb(c, getGiftItems(c, groom), cid);
+    }
+    
+    public static void saveGiftItemsToDb(MapleClient c, List<Item> giftItems, int cid) {
+        List<Pair<Item, MapleInventoryType>> items = new LinkedList<>();
+        for (Item it : giftItems) {
+            items.add(new Pair<>(it, it.getInventoryType()));
+        }
+
+        c.tryacquireClient();
+        try {
+            try {
+                Connection con = DatabaseConnection.getConnection();
+                ItemFactory.MARRIAGE_GIFTS.saveItems(items, cid, con);
+                con.close();
+            } catch (SQLException sqle) {
+                sqle.printStackTrace();
+            }
+        } finally {
+            c.releaseClient();
+        }
+    }
+}