mirror of
https://github.com/acemod/ACE3.git
synced 2024-08-30 18:23:18 +00:00
81e02a7336
* Everything * Fixed missing ; * Fix missing ; and double private * Fixed cannot isNull on number * Turn _temparture back to isNil * Fix error from merge
64 lines
2.5 KiB
Plaintext
64 lines
2.5 KiB
Plaintext
/*
|
|
* Author: PabstMirror
|
|
* DEV function to build mortar tables, very cpu intensive (never used durring normal gameplay)
|
|
*
|
|
* Arguments:
|
|
* 0: Shot Angle (degrees) <NUMBER>
|
|
* 1: Muzzle Velocity (m/s) <NUMBER>
|
|
* 2: Air Friction <NUMBER>
|
|
* 3: Tempeture (degres celcius) <NUMBER>
|
|
* 4: Relative Air Denisty <NUMBER>
|
|
* 5: Tail Wind (m/s) <NUMBER>
|
|
* 6: Cross Wind (m/s) <NUMBER>
|
|
* 7: Height Of Target (M) <NUMBER>
|
|
* 8: Time Step (fraction of a second) <NUMBER>
|
|
*
|
|
* Return Value:
|
|
* <ARRAY> [Distance Traveled<NUMBER>, Shot Time<NUMBER>, Offset (degrees)<NUMBER>]
|
|
*
|
|
* Example:
|
|
* [45, 180, -0.0001, 15, 1, 10, 0, 0, 1/50] call ace_mk6mortar_fnc_dev_simulateShot;
|
|
*
|
|
* Public: No
|
|
*/
|
|
#include "script_component.hpp"
|
|
|
|
params ["_angleDeg", "_muzzleVelocity", "_airFriction", "_temp", "_relDensity", "_tailWind", "_crosswind", "_heightOfTarget", "_timeStep"];
|
|
|
|
private _wind = [_crosswind, _tailWind, 0];
|
|
private _gravity = [0,0,-9.8];
|
|
|
|
private _currentPos = [0,0,0];
|
|
private _muzzleVelocity = _muzzleVelocity * (((_temp + 273.13) / 288.13 - 1) / 40 + 1);
|
|
private _currentVelocity = [0, (_muzzleVelocity * cos _angleDeg), (_muzzleVelocity * sin _angleDeg)];
|
|
|
|
private _currentTime = 0;
|
|
private _lastPos = _currentPos;
|
|
|
|
private _kCoefficent = -1 * _relDensity * _airFriction; //save time in the loop and compute once
|
|
|
|
while {((_currentVelocity select 2) > 0) || ((_currentPos select 2) >= _heightOfTarget)} do {
|
|
_lastPos = _currentPos;
|
|
|
|
private _aparentWind = _wind vectorDiff _currentVelocity;
|
|
private _changeInVelocity = _gravity vectorAdd (_aparentWind vectorMultiply ((vectorMagnitude _aparentWind) * _kCoefficent));
|
|
|
|
_currentVelocity = _currentVelocity vectorAdd (_changeInVelocity vectorMultiply _timeStep);
|
|
|
|
_currentPos = _currentPos vectorAdd (_currentVelocity vectorMultiply _timeStep);
|
|
_currentTime = _currentTime + _timeStep;
|
|
};
|
|
|
|
//Uses linearConversion to get a weighted average betwen points before and after dropping below target height
|
|
private _linConversion = linearConversion [(_lastPos select 2), (_currentPos select 2), _heightOfTarget, 0, 1, true];
|
|
private _middlePos = (_lastPos vectorMultiply (1 - _linConversion)) vectorAdd (_currentPos vectorMultiply (_linConversion));
|
|
// private _middlePosOld = (_lastPos vectorAdd _currentPos) vectorMultiply 0.5;
|
|
|
|
//Same to find travel time
|
|
private _middleTotalTravelTime = _currentTime - (_timeStep * (1-_linConversion));
|
|
|
|
//Find shot offset (from crosswind), in degrees
|
|
private _offsetDeg = (_middlePos select 0) aTan2 (_middlePos select 1);
|
|
|
|
[(_middlePos select 1), _middleTotalTravelTime, _offsetDeg]
|