[Fix] Trailer Death

#define MAX_TRAILERS 10

new TrailerID[MAX_TRAILERS] = {INVALID_VEHICLE_ID, ...},
    TrailerNum[MAX_VEHICLES] = {-1, ...};

stock j_CreateVehicle(modelid, Float:x, Float:y, Float:z, Float:angle, color1, color2, respawn_delay)
{
    new vehicleid = CreateVehicle(modelid, Float:x, Float:y, Float:z, Float:angle, color1, color2, respawn_delay);
    switch(modelid)
    {
        case 435, 450, 584, 591, 606, 607, 608, 610, 611:
            {
                new bool:f;
                for(new c; c < MAX_TRAILERS; c++)
                {
                        if(TrailerID[c] == INVALID_VEHICLE_ID)
                        {
                            TrailerID[c] = vehicleid;
                            TrailerNum[vehicleid] = c;
                            f = true;
                            break;
                }
                }
                if(!f) print("Increase MAX_TRAILERS value!");
            }
    }
    return vehicleid;
}
#define CreateVehicle j_CreateVehicle

stock j_DestroyVehicle(vehicleid)
{
    switch(GetVehicleModel(vehicleid))
    {
        case 435, 450, 584, 591, 606, 607, 608, 610, 611:
            {
                TrailerID[TrailerNum[vehicleid]] = INVALID_VEHICLE_ID;
            TrailerNum[vehicleid] = -1;
            }
    }
    return 1;
}
#define DestroyVehicle j_DestroyVehicle

public OnGameModeInit()
{
    SetTimer("CheckTrailers", 200, true);
    CreateVehicle(435,1626.2261,-1305.7869,17.5208,279.3670,19,50, -1); // tr1
    CreateVehicle(435,1644.1757,-1300.4391,16.1890,230.2410,102,6, -1); // tr2
    CreateVehicle(435,1607.9326,-1300.4973,17.9331,173.2703,91,47, -1); // tr3
    return 1;
}

forward CheckTrailers();
public CheckTrailers()
{
    new Float:tHP, trailerid;
        for(new c; c < MAX_TRAILERS; c++)
    {
        trailerid = TrailerID[c];
            if(trailerid == INVALID_VEHICLE_ID) continue;
            GetVehicleHealth(trailerid, tHP);
            if(tHP < 250)
            {
                CallLocalFunction("OnVehicleDeath", "dd", trailerid, INVALID_PLAYER_ID);
            }
    }
    return 1;
}

public OnVehicleDeath(vehicleid, killerid)
{
        switch(GetVehicleModel(vehicleid))
    {
        case 435, 450, 584, 591, 606, 607, 608, 610, 611:
            {
                new str[32];
            format(str, 32, "OnVehicleDeath: TrailerID: %d", vehicleid);
            SendClientMessageToAll(-1, str);
            SetVehicleToRespawn(vehicleid);
        }
    }
    return 1;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
    if(!strcmp("/f", cmdtext, true, 2))
    {
        new trailerid;
        for(new c; c < MAX_TRAILERS; c++)
        {
            trailerid = TrailerID[c];
            if(trailerid == INVALID_VEHICLE_ID) continue;
            SetVehicleHealth(trailerid, 249);
        }
        return 1;
    }
    return 1;
}