SetTimer("SpeedoUpdate",100,1);

forward SpeedoUpdate();
public SpeedoUpdate()
{
        for(new i = 0; i < MAX_PLAYERS; i++)
	{
	    if(GetPlayerState(i) == PLAYER_STATE_DRIVER)
	    {
	    	GameTextForPlayer(i, Split("~n~~n~~n~~n~~n~~n~~n~~n~~w~~w~KM/?:~b~ ", tostr(GetPlayerSpeed(i)), "~w~ KM/H"),1000, 6);
	    }
	}
	return true;
}
stock GetPlayerSpeed(playerid)
{
	new Float:ST[4];
	if(IsPlayerInAnyVehicle(playerid))
	GetVehicleVelocity(GetPlayerVehicleID(playerid),ST[0],ST[1],ST[2]);
	else GetPlayerVelocity(playerid,ST[0],ST[1],ST[2]);
	ST[3] = floatsqroot(floatpower(floatabs(ST[0]), 2.0) + floatpower(floatabs(ST[1]), 2.0) + floatpower(floatabs(ST[2]), 2.0)) * 179.28625;
	return floatround(ST[3]);
}
Split(s1[], s2[], s3[]="")
{
	new rxx[256];
	format(rxx, 256, "%s%s%s", s1, s2, s3);
	return rxx;
}

tostr(int)
{
	new st[256];
	format(st, 256, "%d", int);
	return st;
}