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VVVVVV/desktop_version/src/FileSystemUtils.cpp

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#include "FileSystemUtils.h"
#include <vector>
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
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#include <SDL.h>
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#include <physfs.h>
#if defined(_WIN32)
#include <windows.h>
#include <shlobj.h>
#define mkdir(a, b) CreateDirectory(a, NULL)
#define VNEEDS_MIGRATION (mkdirResult != 0)
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#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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#include <sys/stat.h>
#include <limits.h>
#define VNEEDS_MIGRATION (mkdirResult == 0)
/* These are needed for PLATFORM_* crap */
#include <unistd.h>
#include <dirent.h>
#define MAX_PATH PATH_MAX
#endif
char saveDir[MAX_PATH];
char levelDir[MAX_PATH];
void PLATFORM_getOSDirectory(char* output);
void PLATFORM_migrateSaveData(char* output);
void PLATFORM_copyFile(const char *oldLocation, const char *newLocation);
int FILESYSTEM_init(char *argvZero)
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{
char output[MAX_PATH];
int mkdirResult;
PHYSFS_init(argvZero);
/* Determine the OS user directory */
PLATFORM_getOSDirectory(output);
/* Create base user directory, mount */
mkdirResult = mkdir(output, 0777);
/* Mount our base user directory */
PHYSFS_mount(output, NULL, 1);
printf("Base directory: %s\n", output);
/* Create save directory */
strcpy(saveDir, output);
strcat(saveDir, "saves");
strcat(saveDir, PHYSFS_getDirSeparator());
mkdir(saveDir, 0777);
printf("Save directory: %s\n", saveDir);
/* Create level directory */
strcpy(levelDir, output);
strcat(levelDir, "levels");
strcat(levelDir, PHYSFS_getDirSeparator());
mkdirResult |= mkdir(levelDir, 0777);
printf("Level directory: %s\n", levelDir);
/* We didn't exist until now, migrate files! */
if (VNEEDS_MIGRATION)
{
PLATFORM_migrateSaveData(output);
}
/* Mount the stock content last */
strcpy(output, PHYSFS_getBaseDir());
strcat(output, "data.zip");
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if (!PHYSFS_mount(output, NULL, 1))
{
puts("Error: data.zip missing!");
puts("You do not have data.zip!");
puts("Grab it from your purchased copy of the game,");
puts("or get it from the free Make and Play Edition.");
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SDL_ShowSimpleMessageBox(
SDL_MESSAGEBOX_ERROR,
"data.zip missing!",
"You do not have data.zip!"
"\n\nGrab it from your purchased copy of the game,"
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"\nor get it from the free Make and Play Edition.",
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NULL
);
return 0;
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}
return 1;
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}
void FILESYSTEM_deinit()
{
PHYSFS_deinit();
}
char *FILESYSTEM_getUserSaveDirectory()
{
return saveDir;
}
char *FILESYSTEM_getUserLevelDirectory()
{
return levelDir;
}
void FILESYSTEM_loadFileToMemory(const char *name, unsigned char **mem, size_t *len)
{
PHYSFS_File *handle = PHYSFS_openRead(name);
if (handle == NULL)
{
return;
}
PHYSFS_uint32 length = PHYSFS_fileLength(handle);
if (len != NULL)
{
*len = length;
}
*mem = (unsigned char*) malloc(length);
PHYSFS_readBytes(handle, *mem, length);
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PHYSFS_close(handle);
}
void FILESYSTEM_freeMemory(unsigned char **mem)
{
free(*mem);
*mem = NULL;
}
std::vector<std::string> FILESYSTEM_getLevelDirFileNames()
{
std::vector<std::string> list;
char **fileList = PHYSFS_enumerateFiles("/levels");
char **i;
std::string builtLocation;
for (i = fileList; *i != NULL; i++)
{
if (strcmp(*i, "data") == 0)
{
continue; /* FIXME: lolwut -flibit */
}
builtLocation = "levels/";
builtLocation += *i;
list.push_back(builtLocation);
}
PHYSFS_freeList(fileList);
return list;
}
void PLATFORM_getOSDirectory(char* output)
{
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#if defined(__linux__) || defined(__FreeBSD__) || defined(__APPLE__) || defined(__OpenBSD__)
strcpy(output, PHYSFS_getPrefDir("distractionware", "VVVVVV"));
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#elif defined(_WIN32)
SHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, output);
strcat(output, "\\VVVVVV\\");
#else
#error See PLATFORM_getOSDirectory
#endif
}
void PLATFORM_migrateSaveData(char* output)
{
char oldLocation[MAX_PATH];
char newLocation[MAX_PATH];
char oldDirectory[MAX_PATH];
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#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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DIR *dir = NULL;
struct dirent *de = NULL;
DIR *subDir = NULL;
struct dirent *subDe = NULL;
char subDirLocation[MAX_PATH];
const char *homeDir = getenv("HOME");
if (homeDir == NULL)
{
/* Uhh, I don't want to get near this. -flibit */
return;
}
strcpy(oldDirectory, homeDir);
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#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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strcat(oldDirectory, "/.vvvvvv/");
#elif defined(__APPLE__)
strcat(oldDirectory, "/Documents/VVVVVV/");
#endif
dir = opendir(oldDirectory);
if (!dir)
{
printf("Could not find directory %s\n", oldDirectory);
return;
}
printf("Migrating old savedata to new location...\n");
for (de = readdir(dir); de != NULL; de = readdir(dir))
{
if ( strcmp(de->d_name, "..") == 0 ||
strcmp(de->d_name, ".") == 0 )
{
continue;
}
#define COPY_SAVEFILE(name) \
else if (strcmp(de->d_name, name) == 0) \
{ \
strcpy(oldLocation, oldDirectory); \
strcat(oldLocation, name); \
strcpy(newLocation, output); \
strcat(newLocation, "saves/"); \
strcat(newLocation, name); \
PLATFORM_copyFile(oldLocation, newLocation); \
}
COPY_SAVEFILE("unlock.vvv")
COPY_SAVEFILE("tsave.vvv")
COPY_SAVEFILE("qsave.vvv")
#undef COPY_SAVEFILE
else if (strstr(de->d_name, ".vvvvvv.vvv") != NULL)
{
strcpy(oldLocation, oldDirectory);
strcat(oldLocation, de->d_name);
strcpy(newLocation, output);
strcat(newLocation, "saves/");
strcat(newLocation, de->d_name);
PLATFORM_copyFile(oldLocation, newLocation);
}
else if (strstr(de->d_name, ".vvvvvv") != NULL)
{
strcpy(oldLocation, oldDirectory);
strcat(oldLocation, de->d_name);
strcpy(newLocation, output);
strcat(newLocation, "levels/");
strcat(newLocation, de->d_name);
PLATFORM_copyFile(oldLocation, newLocation);
}
else if (strcmp(de->d_name, "Saves") == 0)
{
strcpy(subDirLocation, oldDirectory);
strcat(subDirLocation, "Saves/");
subDir = opendir(subDirLocation);
if (!subDir)
{
printf("Could not open Saves/ subdir!\n");
continue;
}
for (
subDe = readdir(subDir);
subDe != NULL;
subDe = readdir(subDir)
) {
#define COPY_SAVEFILE(name) \
(strcmp(subDe->d_name, name) == 0) \
{ \
strcpy(oldLocation, subDirLocation); \
strcat(oldLocation, name); \
strcpy(newLocation, output); \
strcat(newLocation, "saves/"); \
strcat(newLocation, name); \
PLATFORM_copyFile(oldLocation, newLocation); \
}
if COPY_SAVEFILE("unlock.vvv")
else if COPY_SAVEFILE("tsave.vvv")
else if COPY_SAVEFILE("qsave.vvv")
#undef COPY_SAVEFILE
}
}
}
#elif defined(_WIN32)
WIN32_FIND_DATA findHandle;
HANDLE hFind = NULL;
char fileSearch[MAX_PATH];
/* Same place, different layout. */
strcpy(oldDirectory, output);
/* In theory we don't need to worry about this, thanks case insensitivity!
sprintf(fileSearch, "%s\\Saves\\*.vvv", oldDirectory);
hFind = FindFirstFile(fileSearch, &findHandle);
if (hFind == INVALID_HANDLE_VALUE)
{
printf("Could not find directory %s\\Saves\\\n", oldDirectory);
}
else do
{
if ((findHandle.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
{
#define COPY_SAVEFILE(name) \
(strcmp(findHandle.cFileName, name) == 0) \
{ \
strcpy(oldLocation, oldDirectory); \
strcat(oldLocation, "Saves\\"); \
strcat(oldLocation, name); \
strcpy(newLocation, output); \
strcat(newLocation, "saves\\"); \
strcat(newLocation, name); \
PLATFORM_copyFile(oldLocation, newLocation); \
}
if COPY_SAVEFILE("unlock.vvv")
else if COPY_SAVEFILE("tsave.vvv")
else if COPY_SAVEFILE("qsave.vvv")
#undef COPY_SAVEFILE
}
} while (FindNextFile(hFind, &findHandle));
*/
sprintf(fileSearch, "%s\\*.vvvvvv", oldDirectory);
hFind = FindFirstFile(fileSearch, &findHandle);
if (hFind == INVALID_HANDLE_VALUE)
{
printf("Could not find directory %s\n", oldDirectory);
}
else do
{
if ((findHandle.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
{
strcpy(oldLocation, oldDirectory);
strcat(oldLocation, findHandle.cFileName);
strcpy(newLocation, output);
strcat(newLocation, "levels\\");
strcat(newLocation, findHandle.cFileName);
PLATFORM_copyFile(oldLocation, newLocation);
}
} while (FindNextFile(hFind, &findHandle));
#else
#error See PLATFORM_migrateSaveData
#endif
}
void PLATFORM_copyFile(const char *oldLocation, const char *newLocation)
{
char *data;
long int length;
/* Read data */
FILE *file = fopen(oldLocation, "rb");
if (!file)
{
printf("Cannot open/copy %s\n", oldLocation);
return;
}
fseek(file, 0, SEEK_END);
length = ftell(file);
fseek(file, 0, SEEK_SET);
data = (char*) malloc(length);
fread(data, 1, length, file);
fclose(file);
/* Write data */
file = fopen(newLocation, "wb");
if (!file)
{
printf("Could not write to %s\n", newLocation);
free(data);
return;
}
fwrite(data, 1, length, file);
fclose(file);
free(data);
/* WTF did we just do */
printf("Copied:\n\tOld: %s\n\tNew: %s\n", oldLocation, newLocation);
}