Party loot & Mob Skill cooldown patch

Fixed an issue with party loot that started from recent updates.
Implemented party loot permission update for players ingressing a party.
Fixed mob skills not using cooldown time.

docs/mychanges_ptbr.txt

@@ -1790,3 +1790,8 @@ Corrigido inserção de PIC errado no sistema anti-multicliente impossibilitando
 04 Abril 2019,
 Corrigido comandos sem parâmetros contabilizando feed de "um parâmetro vazio".
 Ajustado moderadamente drop rate de vários equipamentos na DB.
+
+06 Abril 2019,
+Corrigido loot de party não funcionando adequadamente após updates recentes.
+Implementado loot de party agora atualizando também loots de jogadores ao entrar numa party (pronta permissão de coleta de loots de outros membros da party).
+Corrigido cooldown de skills de mob não atuando adequadamente.

src/client/MapleCharacter.java

@@ -1480,15 +1480,25 @@ public class MapleCharacter extends AbstractMapleCharacterObject {
             partyLeaver = this;
         }
         
-        int partyId = exPartyMembers != null ? 0 : this.getPartyId();
+        MapleMap map = this.getMap();
+        List<MapleMapItem> partyItems = null;
+        
+        int partyId = exPartyMembers != null ? -1 : this.getPartyId();
         for(WeakReference<MapleMap> mapRef : mapids) {
             MapleMap mapObj = mapRef.get();
             
             if(mapObj != null) {
-                mapObj.updatePlayerItemDrops(partyId, id, partyMembers, partyLeaver);
+                List<MapleMapItem> partyMapItems = mapObj.updatePlayerItemDropsToParty(partyId, id, partyMembers, partyLeaver);
+                if (map.hashCode() == mapObj.hashCode()) {
+                    partyItems = partyMapItems;
+                }
             }
         }
         
+        if (partyItems != null && exPartyMembers == null) {
+            map.updatePartyItemDropsToNewcomer(this, partyItems);
+        }
+        
         updatePartyTownDoors(party, this, partyLeaver, partyMembers);
     }
     

src/server/life/MapleMonster.java

@@ -1407,13 +1407,11 @@ public class MapleMonster extends AbstractLoadedMapleLife {
         
         monsterLock.lock();
         try {
-            /*
-            for (Pair<Integer, Integer> skill : usedSkills) {
+            for (Pair<Integer, Integer> skill : usedSkills) {   // thanks OishiiKawaiiDesu for noticing an issue with mobskill cooldown
                 if (skill.getLeft() == useSkillid && skill.getRight() == toUse.getSkillLevel()) {
                     return false;
                 }
             }
-            */
             
             int mpCon = toUse.getMpCon();
             if (mp < mpCon) {

src/server/maps/MapleMap.java

@@ -1018,13 +1018,15 @@ public class MapleMap {
         unregisterItemDrop(mdrop);
     }
     
-    public void updatePlayerItemDrops(int partyid, int charid, List<MapleCharacter> partyMembers, MapleCharacter partyLeaver) {
-        for(MapleMapItem mdrop : getDroppedItems()) {
-            if(mdrop.getOwnerId() == charid) {
+    public List<MapleMapItem> updatePlayerItemDropsToParty(int partyid, int charid, List<MapleCharacter> partyMembers, MapleCharacter partyLeaver) {
+        List<MapleMapItem> partyDrops = new LinkedList<>();
+        
+        for (MapleMapItem mdrop : getDroppedItems()) {
+            if (mdrop.getOwnerId() == charid) {
                 mdrop.lockItem();
                 try {
                     if (mdrop.isPickedUp()) {
-                        return;
+                        continue;
                     }
                     
                     mdrop.setPartyOwnerId(partyid);
@@ -1032,21 +1034,21 @@ public class MapleMap {
                     byte[] removePacket = MaplePacketCreator.silentRemoveItemFromMap(mdrop.getObjectId());
                     byte[] updatePacket = MaplePacketCreator.updateMapItemObject(mdrop, partyLeaver == null);
                     
-                    for(MapleCharacter mc : partyMembers) {
-                        if(this.equals(mc.getMap())) {
+                    for (MapleCharacter mc : partyMembers) {
+                        if (this.equals(mc.getMap())) {
                             mc.announce(removePacket);
                             
-                            if(mc.needQuestItem(mdrop.getQuest(), mdrop.getItemId())) {
+                            if (mc.needQuestItem(mdrop.getQuest(), mdrop.getItemId())) {
                                 mc.announce(updatePacket);
                             }
                         }
                     }
                     
-                    if(partyLeaver != null) {
-                        if(this.equals(partyLeaver.getMap())) {
+                    if (partyLeaver != null) {
+                        if (this.equals(partyLeaver.getMap())) {
                             partyLeaver.announce(removePacket);
                             
-                            if(partyLeaver.needQuestItem(mdrop.getQuest(), mdrop.getItemId())) {
+                            if (partyLeaver.needQuestItem(mdrop.getQuest(), mdrop.getItemId())) {
                                 partyLeaver.announce(MaplePacketCreator.updateMapItemObject(mdrop, true));
                             }
                         }
@@ -1054,6 +1056,36 @@ public class MapleMap {
                 } finally {
                     mdrop.unlockItem();
                 }
+            } else if (partyid != -1 && mdrop.getPartyOwnerId() == partyid) {
+                partyDrops.add(mdrop);
+            }
+        }
+        
+        return partyDrops;
+    }
+    
+    public void updatePartyItemDropsToNewcomer(MapleCharacter newcomer, List<MapleMapItem> partyItems) {
+        for (MapleMapItem mdrop : partyItems) {
+            mdrop.lockItem();
+            try {
+                if (mdrop.isPickedUp()) {
+                    continue;
+                }
+
+                byte[] removePacket = MaplePacketCreator.silentRemoveItemFromMap(mdrop.getObjectId());
+                byte[] updatePacket = MaplePacketCreator.updateMapItemObject(mdrop, true);
+
+                if (newcomer != null) {
+                    if (this.equals(newcomer.getMap())) {
+                        newcomer.announce(removePacket);
+
+                        if (newcomer.needQuestItem(mdrop.getQuest(), mdrop.getItemId())) {
+                            newcomer.announce(updatePacket);
+                        }
+                    }
+                }
+            } finally {
+                mdrop.unlockItem();
             }
         }
     }

src/server/maps/MapleMapItem.java

@@ -23,7 +23,6 @@ package server.maps;
 import client.MapleCharacter;
 import client.MapleClient;
 import client.inventory.Item;
-import constants.ServerConstants;
 import java.awt.Point;
 import java.util.concurrent.locks.Lock;
 import tools.MaplePacketCreator;
@@ -109,20 +108,18 @@ public class MapleMapItem extends AbstractMapleMapObject {
         party_ownerid = partyid;
     }
     
-    public final int getClientsideOwnerId(MapleCharacter player) {
+    public final int getClientsideOwnerId() {   // thanks nozphex (RedHat) for noting an issue with collecting party items
         if (this.party_ownerid == -1) {
             return this.character_ownerid;
         } else {
-            if (!partyDrop && player.getId() == this.character_ownerid) {
-                return player.getId();
-            } else if (player.getPartyId() == this.party_ownerid) {
-                return player.getId();
-            } else {
-                return this.party_ownerid;
-            }
+            return this.party_ownerid;
         }
     }
     
+    public final boolean hasClientsideOwnership(MapleCharacter player) {
+        return this.character_ownerid == player.getId() || this.party_ownerid == player.getPartyId() || hasExpiredOwnershipTime();
+    }
+    
     public final boolean isFFADrop() {
         return type == 2 || type == 3 || hasExpiredOwnershipTime();
     }

src/tools/MaplePacketCreator.java

@@ -1795,7 +1795,7 @@ public class MaplePacketCreator {
                 mplew.writeBool(drop.getMeso() > 0);
                 mplew.writeInt(drop.getItemId());
                 mplew.writeInt(giveOwnership ? 0 : -1);
-                mplew.write(drop.getDropType());
+                mplew.write(drop.hasExpiredOwnershipTime() ? 2 : drop.getDropType());
                 mplew.writePos(drop.getPosition());
                 mplew.writeInt(giveOwnership ? 0 : -1);
 
@@ -1813,8 +1813,8 @@ public class MaplePacketCreator {
                 mplew.writeInt(drop.getObjectId());
                 mplew.writeBool(drop.getMeso() > 0); // 1 mesos, 0 item, 2 and above all item meso bag,
                 mplew.writeInt(drop.getItemId()); // drop object ID
-                mplew.writeInt(drop.getClientsideOwnerId(player)); // owner charid/partyid :)
-                mplew.write(!drop.hasExpiredOwnershipTime() ? drop.getDropType() : 2); // 0 = timeout for non-owner, 1 = timeout for non-owner's party, 2 = FFA, 3 = explosive/FFA
+                mplew.writeInt(drop.getClientsideOwnerId()); // owner charid/partyid :)
+                mplew.write(drop.hasClientsideOwnership(player) ? 2 : drop.getDropType()); // 0 = timeout for non-owner, 1 = timeout for non-owner's party, 2 = FFA, 3 = explosive/FFA
                 mplew.writePos(dropto);
                 mplew.writeInt(drop.getDropper().getObjectId()); // dropper oid, found thanks to Li Jixue