[SilentSoul]

pawn Код:

#include <a_samp>
#include <progress2>
#include <streamer>

new
        PlayerBar:Progress[ MAX_PLAYERS ],
        PlayerText:Capturing[ MAX_PLAYERS ],
        PlayerTimer[ MAX_PLAYERS ] = -1,
        PlayerDelieverValue[ MAX_PLAYERS ] = 0;
public OnPlayerConnect(playerid)
{
        Progress[ playerid ] = CreatePlayerProgressBar( playerid , 253.000000, 381.000000, 121.000000, 5.000000, 11206655, 100.000000 , BAR_DIRECTION_RIGHT );
    Capturing[playerid] = CreatePlayerTextDraw( playerid , 253.000000, 381.000000 , "Deliver progress...0%" );
    PlayerTextDrawLetterSize( playerid , Capturing[playerid] , 0.220000, 0.9 );
    PlayerTextDrawAlignment( playerid , Capturing[playerid] , 1 );
    PlayerTextDrawColor( playerid , Capturing[playerid] , -1 );
    PlayerTextDrawSetShadow( playerid , Capturing[playerid] , 0 );
    PlayerTextDrawSetOutline( playerid , Capturing[playerid] , -1 );
    PlayerTextDrawBackgroundColor( playerid , Capturing[playerid] , 255 );
    PlayerTextDrawFont( playerid , Capturing[playerid] , 1 );
    PlayerTextDrawSetProportional( playerid , Capturing[playerid] , 1 );
    PlayerTextDrawSetShadow( playerid , Capturing[playerid] , 0 );
    
    PlayerDelieverValue[ playerid ] = 0;
    SetPlayerCheckpoint( playerid, 2566, 256, 12, 20.0 );//just example
    return true;
}
public OnPlayerEnterCheckpoint(playerid)
{
    PlayerTimer[ playerid ] = SetTimerEx("deliverupdate", 1000, true, "i", playerid );
    PlayerDelieverValue[ playerid ] = 0;
    return true;
}
forward deliverupdate( playerid );
public deliverupdate( playerid )
{
    if( !IsPlayerInRangeOfPoint( playerid, 20.0,  2566, 256, 12 ))
    {
        //left the checkpoint
        KillTimer( PlayerTimer[ playerid ] );
        HidePlayerProgressBar( playerid, Progress[ playerid ] );
        PlayerTextDrawHide( playerid, Capturing[ playerid ] );
        return true;
    }
    
    new
        str[ 32 ];
    PlayerDelieverValue[ playerid ] += 5;
    SetPlayerProgressBarValue( playerid, Progress[ playerid ] , PlayerDelieverValue[ playerid ] );
    format( str, sizeof( str ) , "Deliver progress...%d%", PlayerDelieverValue[ playerid ] );
    PlayerTextDrawSetString( playerid, Capturing[playerid], str );

    ShowPlayerProgressBar( playerid, Progress[ playerid ] );
    PlayerTextDrawShow( playerid, Capturing[ playerid ] );
    
    if( PlayerDelieverValue[ playerid ] >= 100 )
    {
        KillTimer( PlayerTimer[ playerid ] );
        HidePlayerProgressBar( playerid, Progress[ playerid ] );
        PlayerTextDrawHide( playerid, Capturing[ playerid ] );
        //delivered.
    }
    return true;
}

EDIT: Sorry forgot to say, you need to check if the player inside the vehicle, if not destroy the timer, hope you got the idea of it.