/*
// Created by Tiny on 3/25/2021.
*/
#include <SDL2/SDL.h>
#include<stdio.h>
#include "move.h"
#include "personnage.h"
#include "collision.h"
#include "prof.h"
#include "DS.h"
#include "GAME.h"
#include "map.h"


/*!
 * \fn void move_hero(Personnage * hero, SDL_Rect * hero_rect, Prof * teacher, DS * exam, MAP * map_game, int * close, int * result)
 * \brief This function move the hero following his position on the map, it will change the close request and the result request if necessary
 *
 * \param [in] hero the hero pointer
 * \param [in] hero_rect the pointer to structure rect of hero
 * \param [in] teacher the teacher pointer
 * \param [in] exam the exam pointer
 * \param [in] map_game the map_game pointer
 * \param [in] close the close request pointer
 * \param [in] result the result pointer
 */
void move_hero(Personnage * hero, SDL_Rect * hero_rect, Prof * teacher, DS * exam, MAP * map_game, int * close, int * result)
{
    //collision variable
    int collision;
    // determine position following inputs
    if (hero->direction_personnage.up && !hero->direction_personnage.down && !hero->direction_personnage.right && !hero->direction_personnage.left) hero->y_pers -=
    SPEED;
    if (!hero->direction_personnage.up && hero->direction_personnage.down && !hero->direction_personnage.right && !hero->direction_personnage.left) hero->y_pers +=
    SPEED;
    if (!hero->direction_personnage.up && !hero->direction_personnage.down && !hero->direction_personnage.right && hero->direction_personnage.left) hero->x_pers -=
    SPEED;
    if (!hero->direction_personnage.up && !hero->direction_personnage.down && hero->direction_personnage.right && !hero->direction_personnage.left) hero->x_pers +=
    SPEED;

    //recalculate 4 points of hero
    calcul_points_pers(hero);

    // collision detection
    collision = test_position(hero, teacher, exam,
                              map_game); // return 0 if nothing, 1 if wall, 2 if exam, 3 if prof, 4 if bounds


    switch (collision)
    {
        case 0:
            hero_rect->x = (int) hero->x_pers;
            hero_rect->y = (int) hero->y_pers;
            break;
        case 1:
            hero->y_pers = hero_rect->y;
            hero->x_pers = hero_rect->x;
            break;
        case 2:
            *close = 1;
            *result = 1;
            break;

        case 3:
            *close = 1;
            *result = 0;
            break;

        case 4:
            if (hero->x_pers <= 0) hero->x_pers = 2;
            if (hero->y_pers <= 0) hero-> y_pers = 2;
            if (hero->x_pers >= WINDOW_WIDTH - hero_rect->w) hero->x_pers = WINDOW_WIDTH - hero_rect->w - 2;
            if (hero->y_pers >= WINDOW_HEIGHT - hero_rect->h) hero->y_pers = WINDOW_HEIGHT - hero_rect->h - 2;
            hero_rect->x = (int) hero->x_pers;
            hero_rect->y = (int) hero->y_pers;
            break;
    }
}




/*!
 * \fn void move_hero(Personnage * hero, SDL_Rect * hero_rect, Prof * teacher, DS * exam, MAP * map_game, int * close, int * result)
 * \brief This function move the hero following his position on the map, it will change the close request and the result request if necessary
 *
 * \param [in] prof the prof pointer
 * \param [in] prof_rect the pointer to structure rect of prof
 * \param [in] predirection the direction pointer
 * \param [in] exam the exam pointer
 * \param [in] map_game the map_game pointer
 */
void prof_move(Prof *prof, int * predirection, SDL_Rect * prof_rect, MAP * map, DS *exam){
    int randdirect;
    switch (*predirection)
    {
        case 0:
            prof->y_prof -= prof->speed_prof;
            break;
        case 1:
            prof->y_prof += prof->speed_prof;
            break;
        case 2:
            prof->x_prof -= prof->speed_prof;
            break;
        case 3:
            prof->x_prof += prof->speed_prof;
            break;
    }
    calcul_points_prof(prof);
    // prof collision detection
    int collision = test_position_prof(prof,map,exam); // return 0 if nothing, 1 if wall or bounds
    // set the positions following collision variable
    switch (collision)
    {
        case 0:
            prof_rect->x = (int) prof->x_prof;
            prof_rect->y = (int) prof->y_prof;
            break;
        case 1:
            prof->y_prof = prof_rect->y;
            prof->x_prof = prof_rect->x;
            fflush(stdin);
            do {
                randdirect = rand()%4;
            }
            while(((randdirect == 0) && (*predirection == 1)) || ((randdirect == 1) && (*predirection == 0)) || ((randdirect == 2) && (*predirection == 3)) || ((randdirect == 3) && (*predirection == 2)));
            *predirection = randdirect;
            break;
    }

}