Something

#define dUserSetFLOAT(%1).( udb_UserSetFLOAT(%1,
#define dUserFLOAT(%1).( udb_UserFLOAT(%1,

enum SavePlayerPosEnum
{
    Float:LastX,
    Float:LastY,
    Float:LastZ
}
new SavePlayerPos[MAX_PLAYERS][SavePlayerPosEnum];

//main-------------------------------------------------------------------------------------


public udb_UserSetFLOAT(nickname[],key[],Float:value) {
  new fname[MAX_STRING];
  format(fname,sizeof(fname),"%s.dudb.sav",udb_encode(nickname));
  return dini_FloatSet(fname,key,value);
}

public Float:udb_UserFLOAT(nickname[],key[]) {
  new fname[MAX_STRING];
  format(fname,sizeof(fname),"%s.dudb.sav",udb_encode(nickname));
  return dini_Float(fname,key);
}

public PlayerName(playerid) {
  new name[MAX_PLAYER_NAME];
  GetPlayerName(playerid, name, MAX_PLAYER_NAME);
  return name;
}

public OnPlayerDisconnect(playerid) {
new Float:x;
new Float:y;
new Float:z;

GetPlayerPos(playerid,Float:x,Float:y,Float:z);
if (PLAYERLIST_authed[playerid]) {
dUserSetFLOAT(PlayerName(playerid)).("x",Float:x);
dUserSetFLOAT(PlayerName(playerid)).("y",Float:y);
dUserSetFLOAT(PlayerName(playerid)).("z",Float:z);
}
  PLAYERLIST_authed[playerid]=false;
  return false;
}