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Support for text-based savefiles

This commit is contained in:
Zerocker 2020-05-18 17:44:21 +09:00
parent 1f3124d20c
commit e1dad71b8e
5 changed files with 589 additions and 7 deletions
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1
.gitignore vendored
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@ -54,6 +54,7 @@ build/*
*.mio0
*.z64
*.map
*.sav
.assets-local.txt
sm64_save_file.bin
sm64config.txt

291
src/game/save_file.c
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@ -1,5 +1,5 @@
#include <ultra64.h>
#include <stdio.h>
#include "sm64.h"
#include "game_init.h"
#include "main.h"
@ -11,6 +11,7 @@
#include "level_table.h"
#include "course_table.h"
#include "thread6.h"
#include "pc/ini.h"
#define MENU_DATA_MAGIC 0x4849
#define SAVE_FILE_MAGIC 0x4441
@ -50,6 +51,69 @@ s8 gLevelToCourseNumTable[] = {
STATIC_ASSERT(ARRAY_COUNT(gLevelToCourseNumTable) == LEVEL_COUNT - 1,
"change this array if you are adding levels");
/* Flag key */
const char *sav_flags[NUM_FLAGS] = {
"file_exists", "wing_cap", "metal_cap", "vanish_cap", "key_1", "key_2",
"basement_door", "upstairs_door", "ddd_moved_back", "moat_drained",
"pps_door", "wf_door", "ccm_door", "jrb_door", "bitdw_door",
"bitfs_door", "", "", "", "", "50star_door"
};
/* Main course keys */
const char *sav_courses[NUM_COURSES] = {
"bob", "wf", "jrb", "ccm", "bbh", "hmc", "lll",
"ssl", "ddd", "sl", "wdw", "ttm", "thi", "ttc", "rr"
};
/* Bonus courses keys (including Castle Course) */
const char *sav_bonus_courses[NUM_BONUS_COURSES] = {
"hub", "bitdw", "bitfs", "bits", "pss", "cotmc",
"totwc", "vcutm", "wmotr", "sa",
};
/* Mario's cap type keys */
const char *cap_on_types[NUM_CAP_ON] = {
"ground", "klepto", "ukiki", "mrblizzard"
};
/* Get current timestamp */
static void get_timestamp(char* buffer)
{
time_t timer;
struct tm* tm_info;
timer = time(NULL);
tm_info = localtime(&timer);
strftime(buffer, 26, "%Y-%m-%d %H:%M:%S", tm_info);
}
/* Convert 'binary' integer to decimal integer */
static u32 bin_to_int(u32 n)
{
s32 dec = 0, i = 0, rem;
while (n != 0) {
rem = n % 10;
n /= 10;
dec += rem * (1 << i);
++i;
}
return dec;
}
/* Convert decimal integer to 'binary' integer */
static u32 int_to_bin(u32 n)
{
s32 bin = 0, rem, i = 1;
while (n != 0) {
rem = n % 2;
n /= 2;
bin += rem * i;
i *= 10;
}
return bin;
}
// This was probably used to set progress to 100% for debugging, but
// it was removed from the release ROM.
static void stub_save_file_1(void) {
@ -178,6 +242,208 @@ static inline s32 write_eeprom_menudata(const u32 slot, const u32 num) {
#endif
}
/**
* Write SaveFile and MainMenuSaveData structs to a text-based savefile.
*/
static s32 write_text_save(s32 fileIndex)
{
FILE* file;
char *filename, *value;
struct SaveFile *savedata;
struct MainMenuSaveData *menudata;
u32 i, flags, coins, stars, starFlags;
/* Define savefile's name */
filename = (char*)malloc(14 * sizeof(char));
if (sprintf(filename, FILENAME_FORMAT, fileIndex) < 0)
{
return -1;
}
file = fopen(filename, "wt");
if (file == NULL) {
return -1;
}
/* Write header */
fprintf(file, "# Super Mario 64 save file\n");
fprintf(file, "# Comment starts with #\n");
fprintf(file, "# True = 1, False = 0\n");
/* Write current timestamp */
value = (char*)malloc(26 * sizeof(char));
get_timestamp(value);
fprintf(file, "# %s\n", value);
/* Write MainMenuSaveData info */
menudata = &gSaveBuffer.menuData[0];
fprintf(file, "\n[menu]\n");
fprintf(file, "coin_score_age = %d\n", menudata->coinScoreAges[fileIndex]);
fprintf(file, "sound_mode = %u\n", menudata->soundMode);
/* Write all flags */
fprintf(file, "\n[flags]\n");
for (i = 1; i < NUM_FLAGS; i++) {
if (strcmp(sav_flags[i], "")) {
flags = save_file_get_flags();
flags = (flags & (1 << i)); /* Get a specific bit */
flags = (flags) ? 1 : 0; /* Determine if bit is set or not */
fprintf(file, "%s = %d\n", sav_flags[i], flags);
}
}
/* Write coin count and star flags from each course (except Castle Grounds) */
fprintf(file, "\n[courses]\n");
for (i = 0; i < NUM_COURSES; i++) {
stars = save_file_get_star_flags(fileIndex, i);
coins = save_file_get_course_coin_score(fileIndex, i);
starFlags = int_to_bin(stars); /* 63 -> 111111 */
fprintf(file, "%s = \"%d, %07d\"\n", sav_courses[i], coins, starFlags);
}
/* Write star flags from each bonus cource (including Castle Grounds) */
fprintf(file, "\n[bonus]\n");
for (i = 0; i < NUM_BONUS_COURSES; i++) {
if (i == 0) {
stars = save_file_get_star_flags(fileIndex, -1);
} else {
stars = save_file_get_star_flags(fileIndex, i+15);
}
starFlags = int_to_bin(stars);
fprintf(file, "%s = %d\n", sav_bonus_courses[i], starFlags);
}
/* Write who steal Mario's cap */
fprintf(file, "\n[cap]\n");
for (i = 0; i < NUM_CAP_ON; i++) {
flags = save_file_get_flags(); // Read all flags
flags = (flags & (1 << (i+16))); // Get `cap` flags
flags = (flags) ? 1 : 0; // Determine if bit is set or not
if (flags) {
fprintf(file, "type = %s\n", cap_on_types[i]);
break;
}
}
/* Write in what course and area Mario losted its cap, and cap's position */
savedata = &gSaveBuffer.files[fileIndex][0];
fprintf(file, "level = %d\n", savedata->capLevel);
fprintf(file, "area = %d\n", savedata->capArea);
fclose(file);
return 1;
}
/**
* Read gSaveBuffer data from a text-based savefile.
*/
static s32 read_text_save(s32 fileIndex)
{
char *filename, *temp;
const char *value;
ini_t *savedata;
u32 i, flag, coins, stars, starFlags;
u32 capLevel, capArea;
Vec3s capPos;
/* Define savefile's name */
filename = (char*)malloc(14 * sizeof(char));
if (sprintf(filename, FILENAME_FORMAT, fileIndex) < 0)
{
return -1;
}
/* Try to open the file */
savedata = ini_load(filename);
if (savedata == NULL) {
return -1;
}
else {
/* Good, file exists for gSaveBuffer */
gSaveBuffer.files[fileIndex][0].flags |= SAVE_FLAG_FILE_EXISTS;
}
/* Read coin score age for selected file and sound mode */
ini_sget(savedata, "menu", "coin_score_age", "%d",
&gSaveBuffer.menuData[0].coinScoreAges[fileIndex]);
ini_sget(savedata, "menu", "sound_mode", "%u",
&gSaveBuffer.menuData[0].soundMode); // Can override 4 times!
/* Parse main flags */
for (i = 1; i < NUM_FLAGS; i++) {
value = ini_get(savedata, "flags", sav_flags[i]);
if (value) {
flag = strtol(value, &temp, 10);
if (flag) {
flag = 1 << i; /* Look #define in header.. */
gSaveBuffer.files[fileIndex][0].flags |= flag;
}
}
}
/* Parse coin and star values for each main course */
for (i = 0; i < NUM_COURSES; i++) {
value = ini_get(savedata, "courses", sav_courses[i]);
if (value) {
sscanf(value, "%d, %d", &coins, &stars);
starFlags = bin_to_int(stars); /* 111111 -> 63 */
save_file_set_star_flags(fileIndex, i, starFlags);
gSaveBuffer.files[fileIndex][0].courseCoinScores[i] = coins;
}
}
/* Parse star values for each bonus course */
for (i = 0; i < NUM_BONUS_COURSES; i++) {
value = ini_get(savedata, "bonus", sav_bonus_courses[i]);
if (value) {
sscanf(value, "%d", &stars);
starFlags = bin_to_int(stars);
if (strlen(value) == 5) {
/* Process Castle Grounds */
save_file_set_star_flags(fileIndex, -1, starFlags);
}
else if (strlen(value) == 2) {
/* Process Princess's Secret Slide */
save_file_set_star_flags(fileIndex, COURSE_PSS, starFlags);
}
else {
/* Process another shitty bonus course */
save_file_set_star_flags(fileIndex, i+15, starFlags);
}
}
}
/* Find, who steal Mario's cap ... */
for (i = 0; i < NUM_CAP_ON; i++) {
value = ini_get(savedata, "cap", "type");
if (value) {
if (!strcmp(value, cap_on_types[i])) {
flag = (1 << (16 + i));
gSaveBuffer.files[fileIndex][0].flags |= flag;
break;
}
}
}
/* ... also it's position, area and level */
sscanf(ini_get(savedata, "cap", "level"), "%d", &capLevel);
sscanf(ini_get(savedata, "cap", "area"), "%d", &capArea);
gSaveBuffer.files[fileIndex][0].capLevel = capLevel;
gSaveBuffer.files[fileIndex][0].capArea = capArea;
/* Cleaning up after ourselves */
ini_free(savedata);
return 1;
}
/**
* Sum the bytes in data to data + size - 2. The last two bytes are ignored
@ -350,7 +616,16 @@ static void save_file_bswap(struct SaveBuffer *buf) {
}
void save_file_do_save(s32 fileIndex) {
if (gSaveFileModified) {
if (gSaveFileModified)
#ifdef TEXTSAVES
{
// Write to text file
write_text_save(fileIndex);
gSaveFileModified = FALSE;
gMainMenuDataModified = FALSE;
}
#else
{
// Compute checksum
add_save_block_signature(&gSaveBuffer.files[fileIndex][0],
sizeof(gSaveBuffer.files[fileIndex][0]), SAVE_FILE_MAGIC);
@ -364,8 +639,8 @@ void save_file_do_save(s32 fileIndex) {
gSaveFileModified = FALSE;
}
save_main_menu_data();
#endif
}
void save_file_erase(s32 fileIndex) {
@ -396,6 +671,14 @@ void save_file_load_all(void) {
gSaveFileModified = FALSE;
bzero(&gSaveBuffer, sizeof(gSaveBuffer));
#ifdef TEXTSAVES
for (file = 0; file < NUM_SAVE_FILES; file++) {
read_text_save(file);
}
gSaveFileModified = TRUE;
gMainMenuDataModified = TRUE;
#else
read_eeprom_data(&gSaveBuffer, sizeof(gSaveBuffer));
if (save_file_need_bswap(&gSaveBuffer))
@ -432,7 +715,7 @@ void save_file_load_all(void) {
break;
}
}
#endif
stub_save_file_1();
}

8
src/game/save_file.h
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@ -160,4 +160,12 @@ void eu_set_language(u16 language);
u16 eu_get_language(void);
#endif
#ifdef TEXTSAVES
#define FILENAME_FORMAT "save_file_%d.sav"
#define NUM_COURSES 15
#define NUM_BONUS_COURSES 10
#define NUM_FLAGS 21
#define NUM_CAP_ON 4
#endif
#endif

265
src/pc/ini.c Normal file
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@ -0,0 +1,265 @@
/**
* Copyright (c) 2016 rxi
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "ini.h"
/* Case insensitive string compare */
static int strcmpci(const char *a, const char *b) {
for (;;) {
int d = tolower(*a) - tolower(*b);
if (d != 0 || !*a) {
return d;
}
a++, b++;
}
}
/* Returns the next string in the split data */
static char* next(ini_t *ini, char *p) {
p += strlen(p);
while (p < ini->end && *p == '\0') {
p++;
}
return p;
}
static void trim_back(ini_t *ini, char *p) {
while (p >= ini->data && (*p == ' ' || *p == '\t' || *p == '\r')) {
*p-- = '\0';
}
}
static char* discard_line(ini_t *ini, char *p) {
while (p < ini->end && *p != '\n') {
*p++ = '\0';
}
return p;
}
static char *unescape_quoted_value(ini_t *ini, char *p) {
/* Use `q` as write-head and `p` as read-head, `p` is always ahead of `q`
* as escape sequences are always larger than their resultant data */
char *q = p;
p++;
while (p < ini->end && *p != '"' && *p != '\r' && *p != '\n') {
if (*p == '\\') {
/* Handle escaped char */
p++;
switch (*p) {
default : *q = *p; break;
case 'r' : *q = '\r'; break;
case 'n' : *q = '\n'; break;
case 't' : *q = '\t'; break;
case '\r' :
case '\n' :
case '\0' : goto end;
}
} else {
/* Handle normal char */
*q = *p;
}
q++, p++;
}
end:
return q;
}
/* Splits data in place into strings containing section-headers, keys and
* values using one or more '\0' as a delimiter. Unescapes quoted values */
static void split_data(ini_t *ini) {
char *value_start, *line_start;
char *p = ini->data;
while (p < ini->end) {
switch (*p) {
case '\r':
case '\n':
case '\t':
case ' ':
*p = '\0';
/* Fall through */
case '\0':
p++;
break;
case '[':
p += strcspn(p, "]\n");
*p = '\0';
break;
case ';':
p = discard_line(ini, p);
break;
default:
line_start = p;
p += strcspn(p, "=\n");
/* Is line missing a '='? */
if (*p != '=') {
p = discard_line(ini, line_start);
break;
}
trim_back(ini, p - 1);
/* Replace '=' and whitespace after it with '\0' */
do {
*p++ = '\0';
} while (*p == ' ' || *p == '\r' || *p == '\t');
/* Is a value after '=' missing? */
if (*p == '\n' || *p == '\0') {
p = discard_line(ini, line_start);
break;
}
if (*p == '"') {
/* Handle quoted string value */
value_start = p;
p = unescape_quoted_value(ini, p);
/* Was the string empty? */
if (p == value_start) {
p = discard_line(ini, line_start);
break;
}
/* Discard the rest of the line after the string value */
p = discard_line(ini, p);
} else {
/* Handle normal value */
p += strcspn(p, "\n");
trim_back(ini, p - 1);
}
break;
}
}
}
ini_t* ini_load(const char *filename) {
ini_t *ini = NULL;
FILE *fp = NULL;
int n, sz;
/* Init ini struct */
ini = malloc(sizeof(*ini));
if (!ini) {
goto fail;
}
memset(ini, 0, sizeof(*ini));
/* Open file */
fp = fopen(filename, "rb");
if (!fp) {
goto fail;
}
/* Get file size */
fseek(fp, 0, SEEK_END);
sz = ftell(fp);
rewind(fp);
/* Load file content into memory, null terminate, init end var */
ini->data = malloc(sz + 1);
ini->data[sz] = '\0';
ini->end = ini->data + sz;
n = fread(ini->data, 1, sz, fp);
if (n != sz) {
goto fail;
}
/* Prepare data */
split_data(ini);
/* Clean up and return */
fclose(fp);
return ini;
fail:
if (fp) fclose(fp);
if (ini) ini_free(ini);
return NULL;
}
void ini_free(ini_t *ini) {
free(ini->data);
free(ini);
}
const char* ini_get(ini_t *ini, const char *section, const char *key) {
char *current_section = "";
char *val;
char *p = ini->data;
if (*p == '\0') {
p = next(ini, p);
}
while (p < ini->end) {
if (*p == '[') {
/* Handle section */
current_section = p + 1;
} else {
/* Handle key */
val = next(ini, p);
if (!section || !strcmpci(section, current_section)) {
if (!strcmpci(p, key)) {
return val;
}
}
p = val;
}
p = next(ini, p);
}
return NULL;
}
int ini_sget(
ini_t *ini, const char *section, const char *key,
const char *scanfmt, void *dst
) {
const char *val = ini_get(ini, section, key);
if (!val) {
return 0;
}
if (scanfmt) {
sscanf(val, scanfmt, dst);
} else {
*((const char**) dst) = val;
}
return 1;
}

25
src/pc/ini.h Normal file
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@ -0,0 +1,25 @@
/**
* Copyright (c) 2016 rxi
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MIT license. See `ini.c` for details.
*/
#ifndef INI_H
#define INI_H
#define INI_VERSION "0.1.1"
typedef struct ini_t ini_t;
struct ini_t {
char *data;
char *end;
};
ini_t* ini_load(const char *filename);
void ini_free(ini_t *ini);
const char* ini_get(ini_t *ini, const char *section, const char *key);
int ini_sget(ini_t *ini, const char *section, const char *key, const char *scanfmt, void *dst);
#endif