Vehicle Damage Enabler [Alpha v2.0]

/*************************************
**************************************
******* Vehicle Damage Enabler *******
*******[Alpha v2.0] by Salvator ******
**************************************
**************************************/

#include <a_samp>

public OnFilterScriptInit()
{
    print("Vehicle Damage Enabler [Alpha v2.0] by Salvator");
    return 1;
}

forward DriverAvailable(vehicleid); //Not sure who originally made this function, but this is with my edits
public DriverAvailable(vehicleid)
{
    for(new i=0; i<= MAX_PLAYERS; i++)
    {
        if(IsPlayerInAnyVehicle(i))
        {
            if(GetPlayerVehicleID(i) == vehicleid)
            {
                if(GetPlayerState(i) == PLAYER_STATE_DRIVER)
                {
                    return 1;
                }
            }
        }
    }
    return 0;
}

IsAirModel(modelid) //Thanks and credits goes to AmigaBlizzard for showing me this function
{
    switch(modelid)
    {
        case 460, 476, 511, 512, 513, 519, 520, 553, 577, 592, 593, 417, 425, 447, 469, 487, 488, 497, 548, 563:
        return 1;
    }
    return 0;
}

public OnPlayerWeaponShot(playerid, weaponid, hittype, hitid, Float:fX, Float:fY, Float:fZ)
{
    new wID = weaponid;
    new Float:vHealth; GetVehicleHealth(hitid, vHealth);

    if(hittype == 2 && !DriverAvailable(hitid) && vHealth > 249)
    {
        if(IsAirModel(GetVehicleModel(hitid)) == 1)
        {
            if(wID == 28 || wID == 32) SetVehicleHealth(hitid, vHealth - 8);
            if(wID == 22 || wID == 29) SetVehicleHealth(hitid, vHealth - 10);
            if(wID == 30 || wID == 31) SetVehicleHealth(hitid, vHealth - 12);
            if(wID == 23) SetVehicleHealth(hitid, vHealth - 16);
            if(wID == 33) SetVehicleHealth(hitid, vHealth - 30);
            if(wID == 27) SetVehicleHealth(hitid, vHealth - 48);
            if(wID == 34) SetVehicleHealth(hitid, vHealth - 50);
            if(wID == 24 || wID == 38) SetVehicleHealth(hitid, vHealth - 56);
            if(wID == 25 || wID == 26) SetVehicleHealth(hitid, vHealth - 60);
        }
        else
        {
            if(wID == 28 || wID == 32) SetVehicleHealth(hitid, vHealth - 20);
            if(wID == 22 || wID == 29) SetVehicleHealth(hitid, vHealth - 25);
            if(wID == 30 || wID == 31) SetVehicleHealth(hitid, vHealth - 30);
            if(wID == 23) SetVehicleHealth(hitid, vHealth - 40);
            if(wID == 33) SetVehicleHealth(hitid, vHealth - 75);
            if(wID == 27) SetVehicleHealth(hitid, vHealth - 120);
            if(wID == 34) SetVehicleHealth(hitid, vHealth - 125);
            if(wID == 24 || wID == 38) SetVehicleHealth(hitid, vHealth - 140);
            if(wID == 25 || wID == 26) SetVehicleHealth(hitid, vHealth - 150);
        }
        new vModel = GetVehicleModel(hitid);
        new Float:hX, Float:hY, Float:hZ, Float:rX, Float:rY, Float:rZ;
        GetVehicleModelInfo(vModel, VEHICLE_MODEL_INFO_WHEELSFRONT, hX, hY, hZ);
        GetVehicleModelInfo(vModel, VEHICLE_MODEL_INFO_WHEELSREAR, rX, rY, rZ);
        new panels, doors, lights, tires;

        //Gammix's vehicleplus.inc helped me realize how to define wheels position, so I'd like to thank him.

        //Left front wheel
        if( fX >= hX - 3.0 && fX <= hX + 0.0 &&
            fY >= hY - 0.5 && fY <= hY + 0.5 &&
            fZ >= hZ - 0.5 && fZ <= hZ + 0.5 )
        {
            GetVehicleDamageStatus(hitid, panels, doors, lights, tires);
            UpdateVehicleDamageStatus(hitid, panels, doors, lights,(tires | 0b1000));
        }
        //Right front wheel
        if( fX >= hX - 0.5 && fX <= hX + 0.5 &&
            fY >= hY - 0.5 && fY <= hY + 0.5 &&
            fZ >= hZ - 0.5 && fZ <= hZ + 0.5 )
        {
            GetVehicleDamageStatus(hitid, panels, doors, lights, tires);
            UpdateVehicleDamageStatus(hitid, panels, doors, lights, (tires | 0b0010));
        }
        //Left rear wheel
        if( fX >= rX - 3.0 && fX <= rX + 0.0 &&
            fY >= rY - 0.5 && fY <= rY + 0.5 &&
            fZ >= rZ - 0.5 && fZ <= rZ + 0.5 )
        {
            GetVehicleDamageStatus(hitid, panels, doors, lights, tires);
            UpdateVehicleDamageStatus(hitid, panels, doors, lights, (tires | 0b0100));
        }
        //Right rear wheel
        if( fX >= rX - 0.5 && fX <= rX + 0.5 &&
            fY >= rY - 0.5 && fY <= rY + 0.5 &&
            fZ >= rZ - 0.5 && fZ <= rZ + 0.5 )
        {
            GetVehicleDamageStatus(hitid, panels, doors, lights, tires);
            UpdateVehicleDamageStatus(hitid, panels, doors, lights, (tires | 0b0001));
        }
    }
    return 1;
}