#ifndef RENDER_TRANSLATE_H
#define RENDER_TRANSLATE_H

#include <fxengine/point.h>


/**
 * @brief      Sets up the translation matrices for a new rendering cycle
 * There is no need to call this function if you have already called render_update()
 *
 * @param[in]  dh      Camera's horizontal direction (rad)
 * @param[in]  dv      Camera's vertical direction (rad)
 * @param[in]  roulis  Optionnal rotation around the middle of the screen
 * @param[in]  camera  The camera's coordinates, as an integer position
 */
void render_set(const double dh, const double dv, const double roulis, const render_integer_position * camera);


/**
 * @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 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 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 sin(const double angle);

#endif