xqz

if      (strcmp(cmd, "/zspeed", true)==0)
        {
                tmp = strtok(cmdtext, idx);
                if      (!strlen(tmp))
                {
                        SendClientMessage(playerid, 0xFFFFFFAA, "USE: /zspeed [speed]");
                        return 1;
                }
        Zspeed=floatstr(tmp);
                return 1;
        }


===================================

CMD:zspeed(playerid,params[])
        {
		new Float:tmp;
                if(sscanf(params,"f",tmp)) return SendClientMessage(playerid, 0xFFFFFFAA, "USE: /zspeed [speed]");
        Zspeed=tmp;
                return 1;
        }