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#ifndef _GPS_POS_H

#define _GPS_POS_H

#define INVALID         0x00

#define NEWDATA         0x01

#define PROCESSED       0x02

typedef struct

{

        s32 Longitude;  // in 1E-7 deg

        s32 Latitude;   // in 1E-7 deg

        s32 Altitude;   // in mm

        u8 Status;              // validity of data

} __attribute__((packed)) GPS_Pos_t;

typedef struct

{

        u8  Status;     // invalid, newdata, processed

        s32 North;              // in cm deviation from target

        s32 East;               // in cm deviation from target

        s32 Bearing;    // in deg to target

        s32 Distance;   // in cm to target

} __attribute__((packed)) GPS_Pos_Deviation_t;

/*

// transform the integer 1E-7 deg into float radians

float GPSPos_ToRadians(s32 deg);

// transform the integer 1E-7 deg into float deg

float GPSPos_ToDeg(s32 deg);

*/

// clear GPS position data

u8 GPSPos_Clear(GPS_Pos_t* pGPSPos);

// copy GPS position from source position to target position

u8 GPSPos_Copy(GPS_Pos_t* pGPSPosSrc, GPS_Pos_t* pGPSPosTgt);

// calculate the deviation from the source position to the target position

u8 GPSPos_Deviation(GPS_Pos_t* pReferencePos, GPS_Pos_t* pTargetPos, GPS_Pos_Deviation_t* pDeviation);

// clear position deviation

u8 GPSPos_Deviation_Clear(GPS_Pos_Deviation_t* pDeviation);

// Move the gps position according to north and east shift in cm

u8 GPSPos_ShiftCartesian(GPS_Pos_t* pGPSPos, s32 NorthShift, s32 EastShift);

// Move the gps position according to the direction of bearing in deg by the given distance in cm

u8 GPSPos_ShiftGeodetic(GPS_Pos_t* pGPSPos, s32 Bearing, s32 Distance);

// Move Pos so that distance to ReferencePos is limited to MaxDistance in cm

// returns 1 if Pos has been moved to fit the limit

u8 GPSPos_CatchDistance(GPS_Pos_t* pPos, GPS_Pos_t*  pReferencePos, s32 MaxDistance);

#endif //_GPS_POS_H