Artillery fire at area

[KrisSerbia]

How can I make artillery fire at area size 250x250 and at every 10 minutes it fires 5 artillery shells(2 minutes 1 artillery shell)?Artillery shells to be 60 millimeters.
Thanks

[snaiperskaya]

Try to search in the first ION (PMC) mission. There's something similiar

[Rydygier]

Well, you can use something like this:

_pos = position Center;
_pX = _pos select 0;
_pY = _pos Select 1;

while {not (isNull Center)} do
    {
    for "_i" from 1 to 5 do
        {
        sleep 120;
        _dX = (random 250) - 125;
        _dY = (random 250) - 125;

        _pX = _pX + _dX;
        _py = _pY + _dY;
        _bum = "ARTY_Sh_81_HE" createVehicle [_pX,_pY,-5]
        }
    } 

Where "Center" is the name of any placed in editor object.

I do not know, if there is any available 60mm shell, above is used vanilla ARTY 81mm. Notice "-5" value - shell will be spawned 5 meters below ground level. This will noticeable reduce explosion damage range to be more like 60mm (you can experiment with this value to adjust strenght of explosion, 0 will be maximum here).

I think, that this PMC arty is more sophisticated, and spawns shells randomly, but never to close to player's group. And looks, like center in that mission is player position. Not sure though. Anyway such thing is possible as well if needed.

[Giallustio]

I think it's better in this way

_pos = position Center;
_pX = _pos select 0;
_pY = _pos Select 1;

while {not (isNull Center)} do
{
    for "_i" from 1 to 5 do
    {
        private ["_dX","_dY","_tX","_tY"];
        _dX = (random 250) - (random 250);
        _dY = (random 250) - (random 250);

        _tX = _pX + _dX;
        _tY = _pY + _dY;
        _bum = "ARTY_Sh_81_HE" createVehicle [_tX, _tY, 10];
        sleep 120;
    };
    sleep 600;
};

[KrisSerbia]

Thanks,but where I need to put PHP code?Sorry,I'm new.
Edit:Find how.

[Giallustio]

Create a sqf file called "arty.sqf", copy the code inside the file and save it inside the folder mission. Then create another sqf file called "init.sqf" and put it inside your folder mission. Open it ("init.sqf") and write

_arty = [] execVM "arty.sqf";

Save it.
In the editor create an object and call it "center". I suggest u to use an empty H.
Then save the mission and you're good to go

[KrisSerbia]

Thanks.

[Giallustio]

Thanks.

You're welcome

[Rydygier]

I think it's better in this way

_pos = position Center;
_pX = _pos select 0;
_pY = _pos Select 1;

while {not (isNull Center)} do
{
    for "_i" from 1 to 5 do
    {
        private ["_dX","_dY","_tX","_tY"];
        _dX = (random 250) - (random 250);
        _dY = (random 250) - (random 250);

        _tX = _pX + _dX;
        _tY = _pY + _dY;
        _bum = "ARTY_Sh_81_HE" createVehicle [_tX, _tY, 10];
        sleep 120;
    };
    sleep 600;
};

But this way there will be 10 minutes of shelling by one shell per 2 minutes, then 10 minutes of pasue and again shelling, again pause... Unless this is, what was needed. I understood, that is needed just one shell per 2 minutes, so 5 shells per 10 minutes, endless. In fact simplier will be then:

_pos = position Center;
_pX = _pos select 0;
_pY = _pos Select 1;

while {not (isNull Center)} do
    {
    sleep 120;
    _dX = (random 250) - 125;
    _dY = (random 250) - 125;

    _pX = _pX + _dX;
    _py = _pY + _dY;
    _bum = "ARTY_Sh_81_HE" createVehicle [_pX,_pY,-5]
    } 

("for to do" was only remain after another version, used by me, where was quick series of shells from time to time);

Also

(random 250) - (random 250) 

is not exactly same as

 (random 250) - 125 

First method does not provide a uniform random distribution across 250 meter square, because where random number is picked twice and both are added, there is involved some quasi-gaussian distribution, I think. I can be mistaken here. Of course not always this matters, and sometimes we need exactly gaussian-like distribution...

EDIT: if needed also this "whistle" sound of falling shells:

_pos = position Center;
_pX = _pos select 0;
_pY = _pos Select 1;

while {not (isNull Center)} do
    {

    sleep 120;
    _dX = (random 250) - 125;
    _dY = (random 250) - 125;

    _pX = _pX + _dX;
    _py = _pY + _dY;
    _bum = "ARTY_Sh_81_HE" createVehicle [_pX,_pY,100];
    _bum say3D "whistle";
    _bum setVelocity [0,0,-300];
    } 

Where "whistle" is name of sound defined in description.ext, but this is more complicated. And not sure, if 100 meters and 300 of velocity is enough.

[Giallustio]

But this way there will be 10 minutes of shelling by one shell per 2 minutes, then 10 minutes of pasue and again shelling, again pause

mmm maybe i don't understand but this is what he wrote:

every 10 minutes it fires 5 artillery shells(2 minutes 1 artillery shell)

Also

(random 250) - (random 250) 

is not exactly same as

 (random 250) - 125 

I think it's better instead 'cause with your way you'll have an area of 125x125 or less...With mine you could have an area of 250x250 and it's more random...Just an example:

(random 250) - (random 250)  -> 200 -100 = 100 

(random 250) - (random 250)  -> 100 -200 = - 100 

(random 250) - (random 250)  -> 250 -0 = 250 

Just my 2 cents