[Jakku]

Quickly written, should do the job

pawn Код:

stock RespawnAllVehicles()
{
    for (new i=0;i<MAX_VEHICLES;i++)
    {
        if (CanVehicleBeRespawned(i)) // If this returns 1 (no factors preventing the vehicle from being respawned as stated in "CanVehicleBeRespawned"), the vehicle will respawn
        {
            SetVehicleToRespawn(i);
        }
    }
}

stock CanVehicleBeRespawned(vehicleid)
{
    new Float:X,Float:Y,Float:Z;
    GetVehiclePos(vehicleid, X,Y,Z);
    if (X == 0.0 && Y == 0.0 && Z == 0.0)
    {
        //Vehicle not created, returning 0
        return 0;
    }
    
    for (new i=0;i<MAX_PLAYERS;i++)
    {
        if (IsPlayerConnected(i))
        {
            if (GetPlayerVehicleID(i) == vehicleid) return 0; // Someone is inside the vehicle, returning 0
        }
    }
    
    return 1; // Vehicle is ready to be respawned, returning 1 :)
}

Now just use RespawnAllVehicles to respawn them to their original positions

EDIT: If you need a timer for it, here:

pawn Код:

forward RespawnVehicles();

public OnGameModeInit()
{
    SetTimer("RespawnVehicles", 300000, true);
}


public RespawnVehicles()
{
    RespawnAllVehicles();
    SendClientMessageToAll(-1, "All unoccupied vehicles successfully respawned");
}