nav_rover_base.h

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/*
 * Copyright (C) 2018 Gautier Hattenberger <gautier.hattenberger@enac.fr>
 *
 * This file is part of paparazzi
 *
 * paparazzi is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * paparazzi is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with paparazzi; see the file COPYING.  If not, see
 * <http://www.gnu.org/licenses/>.
 */
 
#ifndef NAV_ROVER_BASE_H
#define NAV_ROVER_BASE_H
 
#include "firmwares/rover/navigation.h"
 
struct RoverNavGoto {
  struct EnuCoor_f from;    
  struct EnuCoor_f to;      
  float dist2_to_wp;        
  float leg_progress;       
  float leg_length;         
};
 
struct RoverNavCircle {
  struct EnuCoor_f center;  
  float radius;             
  float qdr;                
  float radians;            
};
 
enum oval_status { OR12, OC2, OR21, OC1 };
struct RoverNavOval {
  enum oval_status status;  
  uint8_t count;            
};
 
struct RoverNavBase {
  struct RoverNavGoto goto_wp;
  struct RoverNavCircle circle;
  struct RoverNavOval oval;
};
 
extern struct RoverNavBase nav_rover_base;
 
extern void nav_rover_init(void);
 
 
#define NavCircleCount() (fabsf(nav_rover_base.circle.radians) / (2*M_PI))
#define NavCircleQdr() ({ float qdr = DegOfRad(M_PI_2 - nav_rover_base.circle.qdr); NormCourse(qdr); qdr; })
 
#define CloseDegAngles(_c1, _c2) ({ float _diff = _c1 - _c2; NormCourse(_diff); 350 < _diff || _diff < 10; })
#define CloseRadAngles(_c1, _c2) ({ float _diff = _c1 - _c2; NormRadAngle(_diff); fabsf(_diff) < 0.0177; })
 
#define NavQdrCloseTo(x) CloseDegAngles(x, NavCircleQdr())
#define NavCourseCloseTo(x) CloseDegAngles(x, DegOfRad(stateGetHorizontalSpeedDir_f()))
 
 
#endif