ACE3/addons/advanced_ballistics/functions/fnc_calculateAmmoTemperatureVelocityShift.sqf
Glowbal b489750d5b Minor optimizations using private, params, and isEqualType (#4323)
* Optimizations with private, params, and isEqualType

* Fixed tab being used instead of space

* Fixed tabs inserted by notepad++

* More usage of new private syntax and params

- changed a few checks for an array being empty to `_arr isEqualTo []`
rather than `count _arr == 0`
- added more uses of `private` on the same line as the variable is
declared
- added more uses of params to assign variables passed as parameters
- removed unnecessary parentheses
- removed several unnecessary variable declarations with private array
syntax

* clean up and formatting
2016-09-04 16:44:22 +02:00

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/*
* Author: Ruthberg
*
* Calculates the ammo temperature induced muzzle velocity shift
*
* Arguments:
* 0: muzzle velocity shift lookup table - m/s <ARRAY>
* 1: temperature - degrees celcius <NUMBER>
*
* Return Value:
* muzzle velocity shift - m/s <NUMBER>
*
* Public: No
*/
#include "script_component.hpp"
params ["_muzzleVelocityShiftTable", "_temperature"];
// Check if muzzleVelocityShiftTable is Less Than 11 Entrys
if ((count _muzzleVelocityShiftTable) < 11) exitWith {0};
private _muzzleVelocityShiftTableUpperLimit = _muzzleVelocityShiftTable select 10;
if (isNil "_muzzleVelocityShiftTableUpperLimit") exitWith { 0 };
// Find exact data index required for given temperature
private _temperatureIndexFunction = (_temperature + 15) / 5;
// lower and upper data index used for interpolation
private _temperatureIndexA = (0 max (floor(_temperatureIndexFunction))) min 10;
private _temperatureIndexB = (0 max (ceil(_temperatureIndexFunction))) min 10;
// Interpolation ratio
private _interpolationRatio = _temperatureIndexFunction - floor(_temperatureIndexFunction);
// Interpolation
(_muzzleVelocityShiftTable select _temperatureIndexA) * (1 - _interpolationRatio) + (_muzzleVelocityShiftTable select _temperatureIndexB) * _interpolationRatio // Return