Duet/src/menu.c

#include <gint/display.h>
#include <gint/keyboard.h>
#include <gint/timer.h>
#include <gint/gint.h>
#include <gint/cpu.h>

#include "duet.h"

extern bopti_image_t img_title;

int main_menu(int *episode, int *level)
{
    volatile int need_frame = 1;
    int timer = timer_configure(TIMER_ANY, 33000, GINT_CALL_SET(&need_frame));
    if(timer >= 0) timer_start(timer);

    float time = 0;
    int selection = 0;
    int scroll = 0;

    *episode = 0;
    *level = 0;

    while(1) {
        while (need_frame == 0) sleep();
        need_frame = 0;

        time += 1.0 / 30;

        /* Keyboard input */

        key_event_t e;
        bool input_finished = false;

        while((e = pollevent()).type != KEYEV_NONE) {
            if(e.type == KEYEV_DOWN && e.key == KEY_MENU)
                gint_osmenu();
            if(e.type == KEYEV_DOWN && e.key == KEY_EXE) {
                input_finished = true;
                break;
            }
        }
        if(input_finished)
            break;

        /* Rendering */

        dclear(C_BLACK);
        dimage(330 + scroll, DHEIGHT/2 - img_title.height / 2,
            &img_title);
        render_player(265 + scroll, DHEIGHT/2, time * 0.8);
        dupdate();
    }

    timer_stop(timer);
    return 1;
}