#include <stdint.h>
#include <stdio.h>

#include "keyb.h"
#include "vga.h"
#include "text.h"
#include "map.h"
#include "data.h"

#include "game.h"

static uint32_t hiscore = 15000;

static uint8_t hud;
static volatile uint8_t clock_updated;

/* game variables */
static uint8_t lives;
static uint32_t score;
static uint8_t stage;
static uint8_t gold;
static uint8_t time;

void hud_render()
{
    char b[32];

    if (hud & HUD_ALL)
    {
        Rect src = { 128, 32, 144, 144};
        Rect dst = { 4, 0, 16, 16};

        /* lives */
        blitrc(binary_sprites_start, &src, &dst);

        put_text(136, 4, "TIME");
        put_text(252, 4, "STAGE");
    }

    if (hud & HUD_LIVES)
    {
        sprintf(b, "%d", lives);
        put_text(18, 4, b);
    }

    if (hud & HUD_SCORE)
    {
        sprintf(b, "%06li", score);
        put_text(34, 4, b);
    }

    if (hud & HUD_TIME)
    {
        sprintf(b, "%02d", time);
        put_text(176, 4, b);
    }

    if (hud & HUD_STAGE)
    {
        sprintf(b, "%02d", stage);
        put_text(300, 4, b);
    }

    hud = HUD_CLEAN;
}

void run_game()
{
    lives = GAME_LIVES_START;
    score = 0;
    stage = 0;
    gold = 30;
    time = GAME_TIME_MAX;

    hud = HUD_ALL;

    map_init(binary_stage_start);
    map_render();

    timer_start(GAME_TIME_MAX, &clock_updated);

    while (!keys[KEY_ESC])
    {
        if (clock_updated)
        {
            time = timer_value();
            hud |= HUD_TIME;
        }

        if (hud)
            hud_render();

        wait_vsync();
        blit_update();
    }
}