mirror of
https://github.com/acemod/ACE3.git
synced 2024-08-30 18:23:18 +00:00
46 lines
1.3 KiB
Plaintext
46 lines
1.3 KiB
Plaintext
/*
|
|
* Author: commy2
|
|
* Adjust a projectiles velocity and dir + up vector.
|
|
*
|
|
* Arguments:
|
|
* 0: Projectile <OBJECT>
|
|
* 1: Adjust azimuth this much. <NUMBER>
|
|
* 2: Adjust inclination this much. <NUMBER>
|
|
* 3: Adjust projectile speed this much. In m/s. (optional: 0) <NUMBER>
|
|
*
|
|
* Return Value:
|
|
* None
|
|
*
|
|
* Public: No
|
|
*/
|
|
#include "script_component.hpp"
|
|
|
|
params ["_projectile", "_adjustDir", "_adjustUp", ["_adjustSpeed",0]];
|
|
|
|
// get old direction vector
|
|
private _vdir = vectorNormalized velocity _projectile;
|
|
|
|
// get azimuth and inclination and apply corrections
|
|
private _dir = (_vdir select 0) atan2 (_vdir select 1) + _adjustDir;
|
|
private _up = asin (_vdir select 2) + _adjustUp;
|
|
|
|
// get new direction vector (this is a unit vector)
|
|
_vdir = [
|
|
sin _dir * cos _up,
|
|
cos _dir * cos _up,
|
|
sin _up
|
|
];
|
|
|
|
// get best up vector
|
|
private _vlat = vectorNormalized (_vdir vectorCrossProduct [0,0,1]);
|
|
private _vup = _vlat vectorCrossProduct _vdir;
|
|
|
|
// get new speed vector. Keep total speed, but change to new direction. Yay for vector commands.
|
|
private _vel = _vdir vectorMultiply (_adjustSpeed + vectorMagnitude velocity _projectile);
|
|
|
|
// set projectile direction dir and up. Projectiles are long objects, especially with tracers, so it would look dumb otherwise.
|
|
_projectile setVectorDirAndUp [_vdir, _vup];
|
|
|
|
// set new speed vector
|
|
_projectile setVelocity _vel;
|