public UpdatePlayerPos()
{
    new Float:Pos[3];
    foreach(Player, i)
    {
        if(!IsPlayerConnected(i)) continue;
        GetPlayerPos(i, Pos[0], Pos[1], Pos[2]);
        if(GetPlayerState(i) == PLAYER_STATE_ONFOOT)
        {
            PlayerInfo[i][pDistance] = floatround(floatsqroot(floatsquare(Pos[0])+floatsquare(Pos[1])+floatsquare(Pos[2]))-floatsqroot(floatsquare(GetPVarFloat(i, "OLDX"))+floatsquare(GetPVarFloat(i, "OLDY"))+floatsquare(GetPVarFloat(i, "OLDZ"))));
            SetPVarFloat(i, "OLDX", Pos[0]);
            SetPVarFloat(i, "OLDY", Pos[1]);
            SetPVarFloat(i, "OLDZ", Pos[2]);
        }
    }
    return 1;
}