I actually don't know what your position is but yes :confused:
Seriuosly, simple do
Code:
wow.WriteFloat(0xB9251C + 0x80, playerx + 20.0f);
wow.WriteFloat(0xB9251C + 0x84, playery + 20.0f);
// z is optional, wow sets it accordingly
// wow.WriteFloat(0xB9251C + 0x88, playerz);
wow.WriteFloat(0xB9251C, 0.5f);
wow.WriteInt(0xB9251C + 0x10, 4);
And after that, plz go searching and googling before you post anything else... It isn't that hard to figure out, isn't it?
Read on C# value/reference types and how they are marshaled...
And get to know how they are laid out in memory, your questions aren't much related to the purpose of this section (suprised that anybody has flamed in here yet^^)