a1ien

+ uint32 speed_z = m_spellInfo->EffectMiscValue[eff_idx];

+ if (!speed_z)

+ speed_z = 10;

+ uint32 time = m_spellInfo->EffectMiscValueB[eff_idx];

+ if (!time)

+ time = speed_z * 10;

This information was incorrect.

If you take Sniff and compare value from offy, you get different data

This data from sniff offy spell - http://www.wowhead.com/spell=49575

First test: distance - 10.931

Current Position: 5739,467 175,6612 181,5781

Time: 0x000000AF (175)

speedZ: float 130,6122

Dest position: 5735,85 185,9771 181,593

Second test: distance - 19.637

Current Position: 5737,253 188,6062 181,593

Time: 0x0000013B (315)

speedZ: float 40,31242

Dest position: 5726,408 204,9769 181,593

Third test: distance - 8.15411512

Current Position: 5727,32 163,5015 179,2827

Time: 0x00000083 (131)

speedZ: float 233,0866

Dest position: 5724,258 156,6079 176,1856

Hmmm...

For example. If talk with this NPC http://ru.wowhead.com/npc=34252 and you class priest, it should open a blank window. But if not do

if ( count == 0 )

data << uint8(0);

his not open blank window

The first patch is implemented in [10206]

But may be need implement second patch?

Some question still alive?

Why it not in GIT?

Because i does not add this ) And do not me to decide to remove it or not

For example.

http://wowhead.com/npc=32216 this vendor show http://wowhead.com/item=44689 only for Alliance

and show http://wowhead.com/item=44690 only for Horde

diff --git a/src/game/ItemHandler.cpp b/src/game/ItemHandler.cpp
index 41796a7..3d9057e 100644
--- a/src/game/ItemHandler.cpp
+++ b/src/game/ItemHandler.cpp
@@ -756,7 +756,8 @@ void WorldSession::SendListInventory(uint64 vendorguid)
            {
                if((pProto->AllowableClass & _player->getClassMask()) == 0 && pProto->Bonding == BIND_WHEN_PICKED_UP && !_player->isGameMaster())
                    continue;
-
+        if((pProto->AllowableRace & _player->getRaceMask()) == 0 && pProto->Bonding == BIND_WHEN_PICKED_UP && !_player->isGameMaster())
+            continue;
+
                ++count;

                // reputation discount

and another small fix

If after use filters from vendors will not be a single object that he can offer for sale then the vendor will not open the window

diff --git a/src/game/ItemHandler.cpp b/src/game/ItemHandler.cpp
index 41796a7..ce94160 100644
--- a/src/game/ItemHandler.cpp
+++ b/src/game/ItemHandler.cpp
@@ -774,9 +775,11 @@ void WorldSession::SendListInventory(uint64 vendorguid)
        }
    }

-    if ( count == 0 || data.size() != 8 + 1 + size_t(count) * 8 * 4 )
-        return;
-
+    if(data.size() != 8 + 1 + size_t(count) * 8 * 4)
+        return;
+    if ( count == 0 )
+        data << uint8(0);
+       
    data.put<uint8>(count_pos, count);
    SendPacket( &data );
}

+ if ( count == 0 )

+ data << uint8(0);

package from Offy has length of 10 bytes

but we have if vendor does not offer any item for sale, package have length 9 bytes

This actually appends bytes