ACE3/addons/atragmx/functions/fnc_recalculate_muzzle_velocity.sqf
ulteq 3f4564605b ATragMX - Implemented missing features
* Muzzle Velocity vs. Temperature Interpolation
* C1 Ballistic Coefficient vs. Distance Interpolation
* Coriolis and Spin drift output
* Options menu
* Truing Drop
---------------------------------
* Overworked default gun profiles
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* Fixed the Cancel buttons on the gun-, atmosphere- and target columns.
* Fixed some muzzle velocity entries in the default gun list.
* Fixed divide by zero error in the target range estimator
2016-11-07 16:40:34 +01:00

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/*
* Author: Ruthberg
* Recalculates the muzzle velocity based on the muzzle velocity vs. temperature interpolation input
*
* Arguments:
* parse input <BOOL>
* update display <BOOL>
*
* Return Value:
* Nothing
*
* Example:
* call ace_atragmx_fnc_recalculate_muzzle_velocity
*
* Public: No
*/
#include "script_component.hpp"
params ["_parseInput", "_updateDisplay"];
if (_parseInput) then {
[] call FUNC(parse_input);
};
private _lookupTable = [];
{
if ((_x select 1) > 0) then {
_lookupTable pushBack _x;
};
} forEach (GVAR(workingMemory) select 18);
private _lookupTableSize = count _lookupTable;
if (_lookupTableSize < 2) exitWith {};
_lookupTable sort true;
private ["_lowerIndex", "_upperIndex"];
for "_index" from 1 to (_lookupTableSize - 1) do {
_upperIndex = _index;
_lowerIndex = _upperIndex - 1;
if (((_lookupTable select _index) select 0) >= GVAR(temperature)) exitWith {}
};
private ["_lowerTemperature", "_upperTemperature", "_lowerMuzzleVelocity", "_upperMuzzleVelocity", "_slope", "_muzzleVelocity"];
_lowerTemperature = (_lookupTable select _lowerIndex) select 0;
_upperTemperature = (_lookupTable select _upperIndex) select 0;
_lowerMuzzleVelocity = (_lookupTable select _lowerIndex) select 1;
_upperMuzzleVelocity = (_lookupTable select _upperIndex) select 1;
_slope = (_upperMuzzleVelocity - _lowerMuzzleVelocity) / (_upperTemperature - _lowerTemperature);
_muzzleVelocity = _lowerMuzzleVelocity + (GVAR(temperature) - _lowerTemperature) * _slope;
if (_muzzleVelocity != GVAR(workingMemory) select 1) then {
GVAR(workingMemory) set [1, _muzzleVelocity];
if (_updateDisplay) then {
call FUNC(update_gun);
call FUNC(update_gun_ammo_data);
};
};