#ifndef FE_SPACE
#define FE_SPACE

// Diverses representations de points dans l'espace

#include <stdint.h>
#include "parameters.h"


/**
 * @brief      this struct is a point in 3d, which has coords save as uint32_t
 * this is the recommended type for high performance rendering, because the sh3eb-elf architecture
 * is 32 bits
 * This is also the type used by the rendering triangles.
 */
struct fe_ipoint
{
    int32_t x,
            y,
            z;
};
typedef struct fe_ipoint fe_ipoint;

/**
 * @brief      this struct is a point in 3d, which has coords save as double
 * it is not recommended to use it for high performances rendering,
 * because of the sh3eb-elf architecture, which does not support natively floating calculation
 */
struct fe_fpoint
{
    double  x,
            y,
            z;
};
typedef struct fe_fpoint fe_fpoint;


/**
 * @brief      This is a point which is used for 3d translations and rendering
 * integer mode is the best solution to increase perfs, and that's why I didn't have implemented
 * the floating_points yet. (Maybe I will never add them)
 * To render a triangle, you have to set &point.translated as s1, s2 or even s3
 */
struct fe_ivertex
{
    fe_ipoint   real,
                translated;
};
typedef struct fe_ivertex fe_ivertex;


/**
 * @brief      Translate a point with camera settings
 *
 * @param      point  The point to translate
 */
void fe_vertex_translate(fe_ivertex * v);





/**
 * @brief      Sets up an angle mesure between -pi and +pi
 *
 * @param[in]  a     the angle (rad)
 *
 * @return     angle mesure which respect the following contraint :
 *              -pi <= angle <= pi
 */
double fe_modulo_2pi(double a);

/**
 * @brief      Homemade cosinus implementation, which is faster than casio provided cosinus function
 *
 * @param[in]  angle  The angle (rad)
 *
 * @return     cos angle
 */
double fe_cos(double angle);

/**
 * @brief      Homemade sinus implementation, which is faster than casio provided sinus function
 *
 * @param[in]  angle  The angle (rad)
 *
 * @return     sin angle
 */
double fe_sin(const double angle);

/**
 * mathematics constants
 * TODO déplacer dans caméra
 */
#define pi  3.14159265358
#define pi2 6.28318530718
#define pi_sur_2 1.57079632679

// translate matrix
extern double fe_matrix[3][3];
extern fe_ipoint fe_translate_delta;

#endif