[Sinner]

You can reset the weapons of the player if he's a driver, and set the weapons back when he gets out of the vehicle.

Example (GivePlayerWeapons(playerid) is a custom function you would need to write):

pawn Код:

new bool:RestrictedDriveBy[MAX_PLAYERS]; // On topof script

public OnPlayerEnterVehicle(playerid, vehicleid) {
    // Check if the player is the driver
    if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER) {
        ResetPlayerWeapons(playerid); // Reset his weapons
        RestrictedDriveBy[playerid] = true;
    }
}
public OnPlayerExitVehicle(playerid, vehicleid) {
    if(RestrictedDriveBy[playerid] == true) {
        GivePlayerWeapons(playerid); // Give him back his weapons (custom)
        RestrictedDriveBy[playerid] = false;
    }
}