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#include <stdint.h>
#include <stdio.h>
#include "keyb.h"
#include "vga.h"
#include "text.h"
#include "map.h"
#include "data.h"
#include "timer.h"
#include "entities.h"
#include "player.h"
#include "game.h"
#define GAME_LIVES_START 3
#define GAME_LIVES_MAX 9
#define GAME_TIME_MAX 60
#define HUD_CLEAN 0
#define HUD_LIVES 1
#define HUD_SCORE 2
#define HUD_STAGE 4
#define HUD_TIME 8
#define HUD_ALL 255
#define GAMEOVER_DELAY 96
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;
static uint8_t gameover;
static 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(132, 4, "TIME", 1);
put_text(249, 4, "STAGE", 1);
}
if (hud & HUD_LIVES)
{
sprintf(b, "%d", lives);
put_text(18, 4, b, 1);
}
if (hud & HUD_SCORE)
{
sprintf(b, "%06li", score);
put_text(34, 4, b, 5);
}
if (hud & HUD_TIME)
{
sprintf(b, "%02d", time);
put_text(172, 4, b, time > 10 ? 1 : 15);
}
if (hud & HUD_STAGE)
{
sprintf(b, "%02d", stage + 1);
put_text(297, 4, b, 1);
}
hud = HUD_CLEAN;
}
static void run_gameover()
{
blit_erase(0);
/* restore the HUD after erasing the screen */
hud = HUD_ALL;
hud_render();
put_text(124, 90, "GAME OVER", 1);
wait_vsync();
blit_update();
/* wait some time */
for (uint8_t i = 0; i < 255; i++)
wait_vsync();
}
void run_game()
{
lives = GAME_LIVES_START;
score = 0;
stage = 0;
gold = 30;
time = GAME_TIME_MAX;
hud = HUD_ALL;
blit_erase(0);
map_init(binary_stage_start);
map_render();
entities_draw();
player_draw();
timer_start(GAME_TIME_MAX, &clock_updated);
while (!keys[KEY_ESC])
{
if (clock_updated)
{
time = timer_value();
hud |= HUD_TIME;
}
if (hud)
hud_render();
/* erase first the last we draw */
player_erase();
entities_erase();
player_update();
entities_update();
entities_draw();
player_draw();
wait_vsync();
blit_update();
if (gameover)
{
gameover--;
if (gameover == 1)
{
run_gameover();
break;
}
}
}
/* wait for ESC to be release */
while (keys[KEY_ESC])
wait_vsync();
}
void add_score(uint8_t v)
{
score += v;
hud |= HUD_SCORE;
}
uint32_t get_hiscore()
{
return hiscore;
}
uint8_t dec_lives()
{
lives--;
if (lives == 0)
{
gameover = GAMEOVER_DELAY;
timer_stop();
}
hud |= HUD_LIVES;
return lives;
}
void reset_time()
{
time = GAME_TIME_MAX;
hud |= HUD_TIME;
timer_start(GAME_TIME_MAX, &clock_updated);
}
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