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  • 5 weeks later...
  • 4 months later...
Posted

You can have 2 NPEs with this code, because :

- "knows" try to be feed with activeChar's knownlist, even if activeChar isn't ingame.

- "knows" try to search for an object, but imagine you try to enchant in a place where there is no one around ?

 

Correct way is to initialize Collection after the null check, just before the "for". And to include a null check in if (wh instanceof L2WarehouseInstance)

 

So we got (I didn't verify where you putted your "for" loop, let's say it was good) :

 

final Collection<L2Character> knowns  = activeChar.getKnownList().getKnownCharactersInRadius(400);
for (L2Object wh : knowns)
{
    if (wh != null && wh instanceof L2WarehouseInstance)
    {
        activeChar.sendMessage("You cannot enchant near warehouse.");
        return;
    }
}

  • 8 years later...
Posted
On 8/28/2011 at 8:34 PM, Prince* said:

Fix for that: http://maxcheaters.com/forum/index.php?topic=218257.0 and for enchant phx. and other enchant like near wh..

 

 


--- /trunk/gameserver/java/net/sf/l2j/gameserver/clientpackets/RequestEnchantItem.java
+++ /trunk/gameserver/java/net/sf/l2j/gameserver/clientpackets/RequestEnchantItem.java

@@ 20,1 @@

+import java.util.Collection;
import java.util.logging.Logger;

import net.sf.l2j.gameserver.model.Inventory;
+import net.sf.l2j.gameserver.model.L2Character;
import net.sf.l2j.gameserver.model.L2ItemInstance;


import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
+import net.sf.l2j.gameserver.model.actor.instance.L2WarehouseInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;


import net.sf.l2j.gameserver.model.L2ItemInstance;
+import net.sf.l2j.gameserver.model.L2Object;
import net.sf.l2j.gameserver.model.L2World;


@@ -61,7 +61,15 @@
     {
         L2PcInstance activeChar = getClient().getActiveChar();
+               Collection<L2Character> knowns  = activeChar.getKnownList().getKnownCharactersInRadius(400);
         if (activeChar == null || _objectId == 0)
                        return;
+              
+               for (L2Object wh : knowns)
+               {
+                       if (wh instanceof L2WarehouseInstance)
+                       {
+                               activeChar.sendMessage("You cannot enchant near warehouse.");
+                               return;
+                       }
+               }
         L2ItemInstance item = activeChar.getInventory().getItemByObjectId(_objectId);
         L2ItemInstance scroll = activeChar.getActiveEnchantItem();
 

 

 

i have search on forum and i don't found any post with that code :)

is any of that for frozen ?

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