[Lorenc_]

pawn Code:

enum E_CARJACK_DATA
{
    Float: E_LAST_X,        Float: E_LAST_Y,        Float: E_LAST_Z,
    E_LAST_VEH
}

new
    g_carjackData[ MAX_PLAYERS ] [ E_CARJACK_DATA ]
;

stock CheckPlayerRemoteJacking( playerid )
{
    new iVehicle = GetPlayerVehicleID( playerid );
    
    if( !IsPlayerInAnyVehicle( playerid ) )
        GetPlayerPos( playerid, g_carjackData[ playerid ] [ E_LAST_X ], g_carjackData[ playerid ] [ E_LAST_Y ], g_carjackData[ playerid ] [ E_LAST_Z ] );

    if( ( iVehicle != g_carjackData[ playerid ] [ E_LAST_VEH ] ) && ( iVehicle != 0 ) && ( GetPlayerState( playerid ) == PLAYER_STATE_DRIVER ) )
    {
        new
            Float: fDistance = GetVehicleDistanceFromPoint( iVehicle, g_carjackData[ playerid ] [ E_LAST_X ], g_carjackData[ playerid ] [ E_LAST_Y ], g_carjackData[ playerid ] [ E_LAST_Z ] ),
            Float: fOffset = 10.0
        ;
        
        if( ( GetVehicleModel( iVehicle ) == 577 ) || ( GetVehicleModel( iVehicle ) == 592 )) fOffset = 25.0; // Andromanda | AT-400

        if( fDistance > fOffset) {
        
            /*
                INSERT WHAT YOU WANT TO DO TO A CAR JACKER HERE!
                
                WARNING: THIS IS NOT ACCURATE IMHO!
            */
            SendClientMessage( playerid, -1, "Y U TRY TO CAR JACK" );
        }
        
        GetPlayerPos( playerid, g_carjackData[ playerid ] [ E_LAST_X ], g_carjackData[ playerid ] [ E_LAST_Y ], g_carjackData[ playerid ] [ E_LAST_Z ] );
        g_carjackData[ playerid ] [ E_LAST_VEH ] = iVehicle;
    }
}

I optimized it a bit, but didn't test it.

Installation of my code:

• Add the enum and variable declarations at the top underneath your includes.
• Place the function wherever you want. (stock CheckPlayerRemoteJacking) Just not inside a function...
• Go to OnPlayerUpdate and insert CheckPlayerRemoteJacking( playerid );

If my method doesn't work, please inform me by PM because I'm not sure if I'll be looking at this thread every day!