ACE3/addons/nlaw/functions/fnc_keyDown.sqf

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#include "..\script_component.hpp"
/*
* Author: PabstMirror
* Handles the track key being held down.
* Tracks change in direction of weapon and computes angle change per second.
*
* Arguments:
* None
*
* Return Value:
* None
*
* Example:
* [] call ace_nlaw_fnc_keyDown
*
* Public: No
*/
TRACE_1("lock key down",GVAR(isLockKeyDown));
if (!alive ACE_player) exitWith {};
if !([ACE_player, objNull, ["isNotInside"]] call EFUNC(common,canInteractWith)) exitWith {};
if !(ACE_player call CBA_fnc_canUseWeapon) exitWith {};
if ((getNumber (configFile >> "CfgWeapons" >> (currentWeapon ACE_player) >> QGVAR(enabled))) == 0) exitWith {};
if (GVAR(isLockKeyDown)) exitWith {ERROR("already running?");};
GVAR(isLockKeyDown) = true;
playSound "ACE_Sound_Click";
// Get starting weapon dir
((ACE_player weaponDirection (currentWeapon ACE_player)) call CBA_fnc_vect2Polar) params ["", "_yaw", "_pitch"];
[{
params ["_args", "_pfID"];
_args params ["_lastTime", "_lastYaw", "_lastPitch", "_initPhase"];
if ((!alive ACE_player) ||
{!([ACE_player, objNull, ["isNotInside"]] call EFUNC(common,canInteractWith))} ||
{!GVAR(isLockKeyDown)} ||
{!(ACE_player call CBA_fnc_canUseWeapon)} ||
{(getNumber (configFile >> "CfgWeapons" >> (currentWeapon ACE_player) >> QGVAR(enabled))) == 0})
exitWith {
TRACE_1("ending track",_pfID);
[_pfID] call CBA_fnc_removePerFrameHandler;
playSound "ACE_Sound_Click";
[{ // reset gvars after a short delay
TRACE_1("reset vars",_this);
GVAR(yawChange) = 0;
GVAR(pitchChange) = 0;
}, [], 0.5] call CBA_fnc_waitAndExecute;
};
private _deltaT = CBA_missionTime - _lastTime;
if (_deltaT == 0) exitWith {};
if (_initPhase && {_deltaT < 0.75}) exitWith {};
((ACE_player weaponDirection (currentWeapon ACE_player)) call CBA_fnc_vect2Polar) params ["", "_yaw", "_pitch"];
private _yawChange = ([_yaw - _lastYaw] call CBA_fnc_simplifyAngle180) / _deltaT;
private _pitchChange = ([_pitch - _lastPitch] call CBA_fnc_simplifyAngle180) / _deltaT;
if (_initPhase) then { // initial value will use first 0.75 seconds of input
GVAR(yawChange) = _yawChange;
GVAR(pitchChange) = _pitchChange;
_args set [3, false];
} else {
// smoothing factor alpha - higher values will be more responsive to change, but also spike higher on jerky mouse movmeent
private _alpha = _deltaT / 3;
GVAR(yawChange) = (_yawChange * _alpha) + GVAR(yawChange) * (1 - _alpha);
GVAR(pitchChange) = (_pitchChange * _alpha) + GVAR(pitchChange) * (1 - _alpha);
};
_args set [0, CBA_missionTime];
_args set [1, _yaw];
_args set [2, _pitch];
#ifdef DRAW_NLAW_INFO
hintSilent format ["Instantaneous\nYaw: %1\n Pitch: %2\nGVAR\nYaw: %3\nPitch: %4", _yawChange, _pitchChange, GVAR(yawChange), GVAR(pitchChange)];
#endif
}, .25, [CBA_missionTime, _yaw, _pitch, true]] call CBA_fnc_addPerFrameHandler;