/*
  Projet name .......: Odyssée
  Version ...........: - dev -
  Last modification .: 11 june 2021


  code and assets provided with licence :
  GNU General Public Licence v3.0
*/

#include <gint/display.h>
#include <gint/gray.h>
#include <gint/keyboard.h>
#include <gint/timer.h>
#include <gint/clock.h>
#include <gint/std/stdlib.h>

#include "core.h"
#include "display_engine.h"

// title_screen : display the title screen with particule effect
void title_screen(void);

void main_loop(void);

int main(void)
{
    extern font_t font_odyssee;
    dfont(&font_odyssee);

    dgray(DGRAY_ON);
    title_screen();

    main_loop();

    dgray(DGRAY_OFF);
    dupdate();

    return 1;
}


void title_screen(void)
{
    extern const bopti_image_t img_title;
    int key = 0;

    // Initialise particule effect
    srand(1551001551);
    int coord_x[PARTICULE_NB];
    int coord_y[PARTICULE_NB];
    for (int i = 0; i < PARTICULE_NB; i ++)
    {
        coord_x[i] = rand() % 128;
        coord_y[i] = rand() % 64;
    }

    static volatile int tick = 0;
    int t = timer_configure(TIMER_ANY, ENGINE_TICK*1000, GINT_CALL(callback_tick, &tick));
    if (t >= 0) timer_start(t);

    while (!key)
    {
        while (!tick) sleep();
        tick = 0;

        dclear(C_WHITE);
        dimage(0, 0, &img_title);

        // Update particules positions
        for (int i = 0; i < PARTICULE_NB; i ++)
        {
                dpixel(coord_x[i], coord_y[i], C_BLACK);
                coord_x[i] += (rand() % 3) - 1;
                coord_y[i] += (rand() % 3) - 1;

                if (coord_x[i] < 0 || coord_x[i] > 128) coord_x[i] = rand() % 128;
                if (coord_y[i] < 0 || coord_y[i] > 64) coord_y[i] = rand() % 64;
        }

        dupdate();
        key = rtc_key();
    }

    if (t >= 0) timer_stop(t);
}


void main_loop(void)
{
    extern const struct map map_world;
    int key = 0;

    struct player player = {DOWN};
    struct game game = {map_world, 0, 0, player, 0};

    while (key != KEY_EXIT)
    {   
        dclear(C_WHITE);

        draw_map(game);
        draw_player(game);
        
        dupdate();

        key = getkey().key;
        analyze_input(&game, key);
    }
}