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Create vectorRotate3D.sqf #898

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Create vectorRotate3D.sqf #898

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048a6af
Create vectorRotate3D.sqf
LorenLuke Mar 6, 2018
d91502d
Reformats header and fixes typos.
LorenLuke Mar 6, 2018
cdd2f36
Added new SUPER! header
LorenLuke Mar 6, 2018
65c669f
Adds Tests
LorenLuke Mar 6, 2018
07174a7
update formatting, camel case varnames, fixed undefined variable
commy2 Mar 6, 2018
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30 changes: 30 additions & 0 deletions addons/vectors/fnc_vectRotate3D.sqf
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/* ----------------------------------------------------------------------------
Function: CBA_fnc_vectRotate3D
Description:
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Missing newline above. Same for Returns and Author below. Might want to add an example as shown here as well:
https://github.com/CBATeam/CBA_A3/blob/master/addons/settings/fnc_init.sqf

Rotates the first vector around the second, clockwise by theta degrees

Parameters:
Vector, Rotation Axis, Angle
Returns:
The rotated vector
Author:
LorenLuke
---------------------------------------------------------------------------- */
#include "script_component.hpp"

params ["vector", "_rotationAxis", "_theta"];

private _normalVector = vectorNormalized _rotationAxis;
private _s_theta = sin(_theta);
private _c_theta = cos(_theta);

// Rodrigues Rotation Formula;
// https://wikimedia.org/api/rest_v1/media/math/render/svg/2d63efa533bdbd776434af1a7af3cdafaff1d578
private _returnVector =
(_vector1 vectorMultiply _c_theta) vectorAdd
((_normalVector vectorCrossProduct _vector1) vectorMultiply _s_theta) vectorAdd
(
_normalVector vectorMultiply ((_normalVector vectorDotProduct _vector1) * (1 - _c_theta))
);

_returnVector;