[Admigo]

I only added your code:

pawn Код:

public OnPlayerEnterVehicle(playerid, vehicleid, ispassenger)
{
    if(LastCar[playerid] != vehicleid)
    {
        for(new i=0;i<MAX_PLAYERS;i++)
        {
            if(IsPlayerConnected(i) && LastCar[i] == vehicleid)
            {
                new msg[128],name[24];
                GetPlayerName(i,name,24);
                format(msg,128,"This vehicle is locked by %s!",name);
                SendClientMessage(playerid,-1,msg);
                ClearAnimations(playerid);
                break;
            }
        }
    }
    return 1;
}

At onplayerstate:

pawn Код:

if(newstate == PLAYER_STATE_DRIVER && oldstate == PLAYER_STATE_ONFOOT)
    {
        LastCar[playerid] = GetPlayerVehicleID(playerid);//Vehicle
    }