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#include <stdint.h>
#include <stdio.h>
#include "keyb.h"
#include "vga.h"
#include "sound.h"
#include "text.h"
#include "map.h"
#include "data.h"
#include "timer.h"
#include "entities.h"
#include "tmonster.h"
#include "player.h"
#include "game.h"
#define GAME_LIVES_START 3
#define GAME_LIVES_MAX 9
#define GAME_TIME_MAX 60
#define GAME_MAX_PICKAXE 3
#define HUD_CLEAN 0
#define HUD_LIVES 1
#define HUD_SCORE 2
#define HUD_STAGE 4
#define HUD_TIME 8
#define HUD_PICKAXE 16
#define HUD_ALL 255
#define GAMEOVER_DELAY 96
#define STAGECLEAR_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 time;
static uint8_t pickaxe;
static uint8_t stageclear;
static uint8_t gameover;
static uint8_t pause;
static Entity *tmonster;
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);
/* pickaxe */
src.x = 112;
dst.x = 90;
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_PICKAXE)
{
sprintf(b, "%d", pickaxe);
put_text(106, 4, b, 1);
}
if (hud & HUD_TIME)
{
sprintf(b, "%02d", time);
put_text(172, 4, b, time > 10 || stageclear ? 1 : 15);
if (!gameover && !stageclear && time <= 10)
sound_queue_efx(EFX_TIME);
}
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 */
wait_frames(255);
}
static void run_stageclear()
{
put_text(116, 100, "STAGE CLEAR", 1);
wait_vsync();
blit_update();
/* wait some time */
wait_frames(96);
while (time)
{
add_score(25);
time--;
hud |= HUD_TIME;
sound_queue_efx(EFX_GOLD);
hud_render();
wait_frames(4);
blit_update();
sound_play_queue();
}
/* wait some time */
wait_frames(64);
blit_erase(0);
/* restore the HUD after erasing the screen */
hud = HUD_ALL;
hud_render();
wait_vsync();
blit_update();
wait_frames(32);
}
void run_game()
{
lives = GAME_LIVES_START;
score = 0;
stage = 0;
next_stage:
pause = 0;
gameover = 0;
stageclear = 0;
pickaxe = 0;
time = GAME_TIME_MAX;
hud = HUD_ALL;
tmonster = NULL;
blit_erase(0);
map_init(binary_stage_start);
/* render the scene with the READY? text */
map_render();
entities_draw();
player_draw();
hud_render();
put_text(136, 100, "READY?", 1);
wait_vsync();
blit_update();
/* wait some time */
wait_frames(96);
/* erase the READY? text */
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();
if (keys[KEY_P])
{
/* pause / resume */
pause ^= 1;
/* wait for the key to be released */
while (keys[KEY_P])
wait_vsync();
if (pause)
timer_stop();
else
timer_resume();
}
if (pause)
continue;
/* erase first the last we draw */
player_erase();
entities_erase();
if (map_is_complete())
{
if (!stageclear)
{
timer_stop();
tmonster = NULL;
entities_warp_out_all();
sound_queue_efx(EFX_WARP);
stageclear = STAGECLEAR_DELAY;
}
else
{
stageclear--;
if (stageclear == 1)
{
run_stageclear();
goto next_stage;
}
}
}
else
{
player_update();
/* time monster */
if (!time && !tmonster)
{
tmonster = entities_new();
if (tmonster)
tmonster_init(tmonster);
}
if (time && tmonster)
{
tmonster->used = 0;
tmonster = NULL;
}
}
entities_update();
entities_draw();
player_draw();
wait_vsync();
blit_update();
sound_play_queue();
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);
}
void add_pickaxe()
{
if (pickaxe < GAME_MAX_PICKAXE)
{
pickaxe++;
hud |= HUD_PICKAXE;
}
}
uint8_t use_pickaxe()
{
if (pickaxe)
{
pickaxe--;
hud |= HUD_PICKAXE;
return 1;
}
return 0;
}
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