[ISSUE]Fixed Wing Turret

[armatech 8]

Hi,

I'm working on a UAV system for arma an of now we are in the final stages of the mod but would like to share how the turret works.

There is currently only one know issue and its a show stopper, for some reason when you have the UAV's direction is @ any thing other then 0 degrees North then Ball will be out by the amount of the UAV's direction. if any one can help fix this issue please try out the download its just a simple UAV tracker ball.

Download

[poweruser 10]

replace line 28 in "ballmove.sqf" with these:

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">_y = ((_dir - _uavdir) * 2*pi / 360);

if(_y < -pi) then { _y = _y + 2*pi; };

and use a while-do loop instead of letting the script execute itself again

[armatech 8]

what is pi and its setup like this while i test

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">

_UAVunit = _this select 0;

_target = player;

_y = 0;

_posA = vehicle _UAVunit modelToWorld [ 0, 5.0, -0.8 ];

_posB = getpos _target;

_posAasl = getposasl _UAVunit select 2;

_posBasl = getposasl _target select 2;

//Elevation

_distance = (_UAVunit distance _target);

_x = (asin ((_posBasl - _posAasl)/_distance));

_tilt = _UAVunit animationPhase "ani_PredatorpancamX";

vehicle _UAVunit animate [ "ani_PredatorpancamX", _x];

//ROTATION

_dir = ( ( _posB select 0 ) - ( _posA select 0 ) ) atan2 ( ( _posB select 1 ) - ( _posA select 1 ) );

_y = ((_dir - _uavdir) * 2*pi / 360);

if(_y < -pi) then { _y = _y + 2*pi; };

vehicle _UAVunit animate [ "ani_PredatorpancamY", _y ];

//OUTPUT

_rot = _UAVunit animationPhase "ani_PredatorpancamY";

//player sidechat format ["%1 X=%2 Y=%3 _rot=%4 _tilt=%5",_dir, _x, _y, _rot, _tilt];

sleep 0.01;

[_UAVunit] execVM"ballmove.sqf";

[gsleighter 0]

pi is approx. 3.14159... and on and on for infinity. It's the circumference of a circle divided by the diameter.

[poweruser 10]

armatech, in the code you posted now, you're missing the line which defines the local varibale _uavdir.

To speed things up, here's the whole script: (i threw out the code which isnt used)

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">private["_UAVunit","_target","_y","_x","_posA","_posB","_posAasl","_posBasl","_distance","_dir"];

_UAVunit = _this select 0;

_target = player;

while { alive _UAVunit } do {

       // Elevation

       _posAasl = getposasl _UAVunit select 2;

       _posBasl = getposasl _target select 2;

       _distance = (_UAVunit distance _target);

       _x = (asin ((_posBasl - _posAasl) / _distance));

       vehicle _UAVunit animate [ "ani_PredatorpancamX", _x];

       // Rotation

       _posA = vehicle _UAVunit modelToWorld [ 0,  5.0, -0.8 ];

       _posB = getpos _target;

       _dir = ( ( _posB select 0 ) - ( _posA select 0 ) ) atan2 ( ( _posB select 1 ) - ( _posA select 1 ) );

       _y = ((_dir - (getdir _UAVunit)) * 2*pi / 360);

       if(_y < -pi) then { _y = _y + 2*pi; };

       vehicle _UAVunit animate ["ani_PredatorpancamY", _y];

       sleep 0.01;

};

[armatech 8]

armatech, in the code you posted now, you're missing the line which defines the local varibale _uavdir.

To speed things up, here's the whole script: (i threw out the code which isnt used)

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">private["_UAVunit","_target","_y","_x","_posA","_posB","_posAasl","_posBasl","_distance","_dir"];

_UAVunit = _this select 0;

_target = player;

while { alive _UAVunit } do {

       // Elevation

       _posAasl = getposasl _UAVunit select 2;

       _posBasl = getposasl _target select 2;

       _distance = (_UAVunit distance _target);

       _x = (asin ((_posBasl - _posAasl) / _distance));

       vehicle _UAVunit animate [ "ani_PredatorpancamX", _x];

       // Rotation

       _posA = vehicle _UAVunit modelToWorld [ 0,  5.0, -0.8 ];

       _posB = getpos _target;

       _dir = ( ( _posB select 0 ) - ( _posA select 0 ) ) atan2 ( ( _posB select 1 ) - ( _posA select 1 ) );

       _y = ((_dir - (getdir _UAVunit)) * 2*pi / 360);

       if(_y < -pi) then { _y = _y + 2*pi; };

       vehicle _UAVunit animate ["ani_PredatorpancamY", _y];

       sleep 0.01;

};

your da man thanks a bunch ill add you to the credits of the predmod