1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <crt0.h>
#include "timer.h"
#include "keyb.h"
#include "sound.h"
#include "control.h"
#include "vga.h"
#include "data.h"
#include "menu.h"
#include "game.h"
#define GAME_NAME "Gold Mine Run!"
#define GAME_VERSION "1.3 (2023-08-12)"
#define GAME_URL "https://www.usebox.net/jjm/gold-mine-run/"
/* disable paging because our int handlers are written in C */
int _crt0_startup_flags = _CRT0_FLAG_LOCK_MEMORY;
static void run_help(const char *argv0)
{
printf("usage: %s [OPTION]\n\n"
"Valid options:\n\n"
" -h, /? this help screen\n"
" -v print version and exit\n"
" -ns run the game with no sound\n\n"
"More info and updates:\n\n"
" " GAME_URL "\n\n",
argv0);
}
static void free_all()
{
timer_free();
keyb_free();
sound_free();
}
int main(int argc, char *argv[])
{
uint8_t nosound = 0;
if (argc > 1)
{
for (uint8_t i = 1; i < argc; i++)
if (!strcmp(argv[i], "-h")
|| !strcmp(argv[i], "/?"))
{
run_help(argv[0]);
return 0;
}
else if (!strcmp(argv[i], "-v"))
{
printf(GAME_NAME " version " GAME_VERSION "\n");
return 0;
}
else if (!strcmp(argv[i], "-ns"))
nosound = 1;
else
{
fprintf(stderr, "ERROR: invalid option, try -h\n");
return 1;
}
}
if (!nosound && !sound_init())
{
fprintf(stderr, "ERROR: failed to init sound\n");
return 1;
}
timer_init();
keyb_init();
atexit(free_all);
/* requires keyboard */
control_init();
/* to update mikmod */
if (!nosound)
timer_user_fn(sound_update);
/* set VGA 320x200, 256 col */
if (!set_mode(0x13))
{
fprintf(stderr, "ERROR: failed to init the VGA card\n");
return 1;
}
set_palette(binary_palette_start);
if (!open_framebuffer())
{
set_mode(3);
fprintf(stderr, "ERROR: failed to open the framebuffer\n");
return 1;
}
while (run_menu())
run_game();
blit_target(TARGET_SCREEN);
wait_vsync();
blit_erase(0);
set_mode(3);
close_framebuffer();
return 0;
}
|
