After sniffing a packet, for example for walk, you can enter own values...
for example if you sniff a walk packet it would look...mhm like this [just example:]
PHP Code:
Packet 0x15 : bbb
6
9
1
Then maybe you see: its the walk packet! and 6 is the x coordinate, 9 the y, and 1 the z...
then you could send packets like this:
SendPacket(0x15,"bbb",25,0,0);
would mean-> go 25x
or
SendPacket(0x15,"bbb",0,15,0);
---> go 15y
and so on ;D