public OnPlayerUpdate(playerid)
{
    new keys, updown, leftright;
    GetPlayerKeys(playerid, keys, updown, leftright);

    if (keys & KEY_ACTION)
    {
        if (leftright == KEY_LEFT)
        {
            SendClientMessage(playerid, -1, "left");
            Boot(playerid);
        }
        else if (leftright == KEY_RIGHT)
        {
            SendClientMessage(playerid, -1, "right");
        }
    }
    return true;
}
stock Boot(playerid)
{
    new string[15];
    new engine,lights,alarm,doors,bonnet,boot,objective;
    if(GetPlayerVehicleID(playerid) != INVALID_VEHICLE_ID)
    {
        if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
        {
            new carid = GetPlayerVehicleID(playerid);
            GetVehicleParamsEx(GetPlayerVehicleID(playerid),engine,lights,alarm,doors,bonnet,boot,objective);
            switch(boot)
            {
                case -1,0:
                {
                    if(carid == PlayerInfo[playerid][pVehKey])
                    {
                        SetVehicleParamsEx(GetPlayerVehicleID(playerid),engine,lights,alarm,doors,bonnet,1,objective);
                        format(string,sizeof(string),"~g~Boot");
                        TextDrawSetString(Textdraw3[playerid], string);
                        bt[carid] = 1;
                        printf("boot1");
                    }
                    else if(carid < StaticVehs)
                    {
                        SetVehicleParamsEx(GetPlayerVehicleID(playerid),engine,lights,alarm,doors,bonnet,1,objective);
                        format(string,sizeof(string),"~g~Boot");
                        TextDrawSetString(Textdraw3[playerid], string);
                        bt[carid] = 1;
                        printf("boot2");
                    }
                }
                case 1:
                {
                    SetVehicleParamsEx(GetPlayerVehicleID(playerid),engine,lights,alarm,doors,bonnet,0,objective);
                    format(string,sizeof(string),"~w~Boot");
                    TextDrawSetString(Textdraw3[playerid], string);
                    bt[carid] = 0;
                    printf("boot3");
                }
            }
            return true;
        }
    }
    return true;
}