mirror of
https://github.com/TerryCavanagh/VVVVVV.git
synced 2024-11-18 00:49:42 +01:00
5eab43a655
This is just in case these values happen to be used without being initialized or anything. I vaguely recall someone reporting an issue where they didn't have a "Documents" folder on Windows and their level folder ended up being a garbage path, so it's good to do this.
620 lines
16 KiB
C++
620 lines
16 KiB
C++
#include "FileSystemUtils.h"
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#include <vector>
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#include <string>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "Graphics.h"
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#include <iterator>
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#include <algorithm>
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#include <iostream>
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#include <SDL.h>
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#include <physfs.h>
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#include "tinyxml2.h"
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/* These are needed for PLATFORM_* crap */
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#if defined(_WIN32)
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#include <windows.h>
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#include <shlobj.h>
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#include <shellapi.h>
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#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__)
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#include <unistd.h>
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#include <dirent.h>
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#include <limits.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <spawn.h>
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#define MAX_PATH PATH_MAX
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#endif
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char saveDir[MAX_PATH] = {'\0'};
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char levelDir[MAX_PATH] = {'\0'};
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void PLATFORM_getOSDirectory(char* output);
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void PLATFORM_migrateSaveData(char* output);
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void PLATFORM_copyFile(const char *oldLocation, const char *newLocation);
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int FILESYSTEM_init(char *argvZero, char* baseDir, char *assetsPath)
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{
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char output[MAX_PATH];
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int mkdirResult;
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const char* pathSep = PHYSFS_getDirSeparator();
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PHYSFS_init(argvZero);
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PHYSFS_permitSymbolicLinks(1);
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/* Determine the OS user directory */
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if (baseDir && strlen(baseDir) > 0)
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{
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strcpy(output, baseDir);
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/* We later append to this path and assume it ends in a slash */
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if (strcmp(std::string(1, output[strlen(output) - 1]).c_str(), pathSep) != 0)
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{
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strcat(output, pathSep);
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}
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}
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else
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{
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PLATFORM_getOSDirectory(output);
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}
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/* Create base user directory, mount */
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mkdirResult = PHYSFS_mkdir(output);
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/* Mount our base user directory */
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PHYSFS_mount(output, NULL, 0);
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PHYSFS_setWriteDir(output);
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printf("Base directory: %s\n", output);
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/* Create the save/level folders */
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mkdirResult |= PHYSFS_mkdir("saves");
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mkdirResult |= PHYSFS_mkdir("levels");
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/* Store full save directory */
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SDL_snprintf(saveDir, sizeof(saveDir), "%s%s%s",
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output,
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"saves",
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PHYSFS_getDirSeparator()
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);
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printf("Save directory: %s\n", saveDir);
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/* Store full level directory */
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SDL_snprintf(levelDir, sizeof(levelDir), "%s%s%s",
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output,
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"levels",
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PHYSFS_getDirSeparator()
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);
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printf("Level directory: %s\n", levelDir);
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/* We didn't exist until now, migrate files! */
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if (mkdirResult == 0)
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{
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PLATFORM_migrateSaveData(output);
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}
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/* Mount the stock content last */
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if (assetsPath)
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{
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strcpy(output, assetsPath);
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}
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else
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{
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strcpy(output, PHYSFS_getBaseDir());
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strcat(output, "data.zip");
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}
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if (!PHYSFS_mount(output, NULL, 1))
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{
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puts("Error: data.zip missing!");
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puts("You do not have data.zip!");
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puts("Grab it from your purchased copy of the game,");
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puts("or get it from the free Make and Play Edition.");
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SDL_ShowSimpleMessageBox(
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SDL_MESSAGEBOX_ERROR,
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"data.zip missing!",
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"You do not have data.zip!"
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"\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
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);
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return 0;
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}
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SDL_snprintf(output, sizeof(output), "%s%s", PHYSFS_getBaseDir(), "gamecontrollerdb.txt");
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if (SDL_GameControllerAddMappingsFromFile(output) < 0)
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{
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printf("gamecontrollerdb.txt not found!\n");
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}
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return 1;
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}
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void FILESYSTEM_deinit()
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{
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PHYSFS_deinit();
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}
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char *FILESYSTEM_getUserSaveDirectory()
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{
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return saveDir;
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}
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char *FILESYSTEM_getUserLevelDirectory()
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{
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return levelDir;
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}
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bool FILESYSTEM_directoryExists(const char *fname)
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{
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return PHYSFS_exists(fname);
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}
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void FILESYSTEM_mount(const char *fname)
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{
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std::string path(PHYSFS_getRealDir(fname));
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path += PHYSFS_getDirSeparator();
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path += fname;
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if (!PHYSFS_mount(path.c_str(), NULL, 0))
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{
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printf("Error mounting: %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
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}
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else
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{
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graphics.assetdir = path.c_str();
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}
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}
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bool FILESYSTEM_assetsmounted = false;
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void FILESYSTEM_mountassets(const char* path)
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{
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const std::string _path(path);
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std::string zippath = "levels/" + _path.substr(7,_path.size()-14) + ".data.zip";
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std::string dirpath = "levels/" + _path.substr(7,_path.size()-14) + "/";
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std::string zip_path;
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const char* cstr = PHYSFS_getRealDir(_path.c_str());
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if (cstr) {
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zip_path = cstr;
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}
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if (cstr && FILESYSTEM_directoryExists(zippath.c_str())) {
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printf("Custom asset directory exists at %s\n", zippath.c_str());
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FILESYSTEM_mount(zippath.c_str());
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graphics.reloadresources();
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FILESYSTEM_assetsmounted = true;
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} else if (zip_path != "data.zip" && !endsWith(zip_path, "/data.zip") && endsWith(zip_path, ".zip")) {
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printf("Custom asset directory is .zip at %s\n", zip_path.c_str());
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PHYSFS_File* zip = PHYSFS_openRead(zip_path.c_str());
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zip_path += ".data.zip";
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if (zip == NULL) {
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printf("error loading .zip: %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
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} else if (PHYSFS_mountHandle(zip, zip_path.c_str(), "/", 0) == 0) {
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printf("error mounting .zip: %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
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} else {
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graphics.assetdir = zip_path;
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}
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FILESYSTEM_assetsmounted = true;
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graphics.reloadresources();
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} else if (FILESYSTEM_directoryExists(dirpath.c_str())) {
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printf("Custom asset directory exists at %s\n",dirpath.c_str());
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FILESYSTEM_mount(dirpath.c_str());
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graphics.reloadresources();
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FILESYSTEM_assetsmounted = true;
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} else {
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printf("Custom asset directory does not exist\n");
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FILESYSTEM_assetsmounted = false;
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}
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}
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void FILESYSTEM_unmountassets()
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{
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if (graphics.assetdir != "")
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{
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printf("Unmounting %s\n", graphics.assetdir.c_str());
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PHYSFS_unmount(graphics.assetdir.c_str());
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graphics.assetdir = "";
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graphics.reloadresources();
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}
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else
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{
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printf("Cannot unmount when no asset directory is mounted\n");
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}
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FILESYSTEM_assetsmounted = false;
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}
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void FILESYSTEM_loadFileToMemory(
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const char *name,
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unsigned char **mem,
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size_t *len,
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bool addnull
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) {
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if (strcmp(name, "levels/special/stdin.vvvvvv") == 0)
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{
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// this isn't *technically* necessary when piping directly from a file, but checking for that is annoying
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static std::vector<char> STDIN_BUFFER;
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static bool STDIN_LOADED = false;
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if (!STDIN_LOADED)
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{
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std::istreambuf_iterator<char> begin(std::cin), end;
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STDIN_BUFFER.assign(begin, end);
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STDIN_BUFFER.push_back(0); // there's no observable change in behavior if addnull is always true, but not vice versa
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STDIN_LOADED = true;
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}
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size_t length = STDIN_BUFFER.size() - 1;
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if (len != NULL)
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{
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*len = length;
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}
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++length;
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*mem = static_cast<unsigned char*>(malloc(length)); // STDIN_BUFFER.data() causes double-free
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std::copy(STDIN_BUFFER.begin(), STDIN_BUFFER.end(), reinterpret_cast<char*>(*mem));
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return;
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}
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PHYSFS_File *handle = PHYSFS_openRead(name);
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if (handle == NULL)
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{
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return;
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}
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PHYSFS_uint32 length = PHYSFS_fileLength(handle);
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if (len != NULL)
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{
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*len = length;
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}
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if (addnull)
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{
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*mem = (unsigned char *) malloc(length + 1);
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(*mem)[length] = 0;
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}
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else
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{
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*mem = (unsigned char*) malloc(length);
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}
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int success = PHYSFS_readBytes(handle, *mem, length);
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if (success == -1)
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{
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FILESYSTEM_freeMemory(mem);
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}
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PHYSFS_close(handle);
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}
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void FILESYSTEM_freeMemory(unsigned char **mem)
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{
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free(*mem);
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*mem = NULL;
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}
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bool FILESYSTEM_saveTiXml2Document(const char *name, tinyxml2::XMLDocument& doc)
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{
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/* XMLDocument.SaveFile doesn't account for Unicode paths, PHYSFS does */
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tinyxml2::XMLPrinter printer;
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doc.Print(&printer);
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PHYSFS_File* handle = PHYSFS_openWrite(name);
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if (handle == NULL)
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{
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return false;
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}
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PHYSFS_writeBytes(handle, printer.CStr(), printer.CStrSize() - 1); // subtract one because CStrSize includes terminating null
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PHYSFS_close(handle);
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return true;
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}
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bool FILESYSTEM_loadTiXml2Document(const char *name, tinyxml2::XMLDocument& doc)
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{
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/* XMLDocument.LoadFile doesn't account for Unicode paths, PHYSFS does */
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unsigned char *mem = NULL;
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FILESYSTEM_loadFileToMemory(name, &mem, NULL, true);
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if (mem == NULL)
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{
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return false;
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}
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doc.Parse((const char*) mem);
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FILESYSTEM_freeMemory(&mem);
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return true;
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}
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std::vector<std::string> FILESYSTEM_getLevelDirFileNames()
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{
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std::vector<std::string> list;
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char **fileList = PHYSFS_enumerateFiles("/levels");
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char **i;
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std::string builtLocation;
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for (i = fileList; *i != NULL; i++)
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{
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if (strcmp(*i, "data") == 0)
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{
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continue; /* FIXME: lolwut -flibit */
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}
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builtLocation = "levels/";
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builtLocation += *i;
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list.push_back(builtLocation);
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}
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PHYSFS_freeList(fileList);
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return list;
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}
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void PLATFORM_getOSDirectory(char* output)
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{
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#ifdef _WIN32
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/* This block is here for compatibility, do not touch it! */
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WCHAR utf16_path[MAX_PATH];
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SHGetFolderPathW(NULL, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, utf16_path);
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WideCharToMultiByte(CP_UTF8, 0, utf16_path, -1, output, MAX_PATH, NULL, NULL);
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strcat(output, "\\VVVVVV\\");
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#else
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strcpy(output, PHYSFS_getPrefDir("distractionware", "VVVVVV"));
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#endif
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}
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void PLATFORM_migrateSaveData(char* output)
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{
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char oldLocation[MAX_PATH];
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char newLocation[MAX_PATH];
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char oldDirectory[MAX_PATH];
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#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__)
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DIR *dir = NULL;
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struct dirent *de = NULL;
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DIR *subDir = NULL;
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struct dirent *subDe = NULL;
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char subDirLocation[MAX_PATH];
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const char *homeDir = getenv("HOME");
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if (homeDir == NULL)
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{
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/* Uhh, I don't want to get near this. -flibit */
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return;
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}
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strcpy(oldDirectory, homeDir);
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#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__)
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strcat(oldDirectory, "/.vvvvvv/");
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#elif defined(__APPLE__)
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strcat(oldDirectory, "/Documents/VVVVVV/");
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#endif
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dir = opendir(oldDirectory);
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if (!dir)
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{
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printf("Could not find directory %s\n", oldDirectory);
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return;
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}
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printf("Migrating old savedata to new location...\n");
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for (de = readdir(dir); de != NULL; de = readdir(dir))
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{
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if ( strcmp(de->d_name, "..") == 0 ||
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strcmp(de->d_name, ".") == 0 )
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{
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continue;
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}
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#define COPY_SAVEFILE(name) \
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else if (strcmp(de->d_name, name) == 0) \
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{ \
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strcpy(oldLocation, oldDirectory); \
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strcat(oldLocation, name); \
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strcpy(newLocation, output); \
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strcat(newLocation, "saves/"); \
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strcat(newLocation, name); \
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PLATFORM_copyFile(oldLocation, newLocation); \
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}
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COPY_SAVEFILE("unlock.vvv")
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COPY_SAVEFILE("tsave.vvv")
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COPY_SAVEFILE("qsave.vvv")
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#undef COPY_SAVEFILE
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else if (strstr(de->d_name, ".vvvvvv.vvv") != NULL)
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{
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strcpy(oldLocation, oldDirectory);
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strcat(oldLocation, de->d_name);
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strcpy(newLocation, output);
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strcat(newLocation, "saves/");
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strcat(newLocation, de->d_name);
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PLATFORM_copyFile(oldLocation, newLocation);
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}
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else if (strstr(de->d_name, ".vvvvvv") != NULL)
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{
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strcpy(oldLocation, oldDirectory);
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strcat(oldLocation, de->d_name);
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strcpy(newLocation, output);
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strcat(newLocation, "levels/");
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strcat(newLocation, de->d_name);
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PLATFORM_copyFile(oldLocation, newLocation);
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}
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else if (strcmp(de->d_name, "Saves") == 0)
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{
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strcpy(subDirLocation, oldDirectory);
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strcat(subDirLocation, "Saves/");
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subDir = opendir(subDirLocation);
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if (!subDir)
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{
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printf("Could not open Saves/ subdir!\n");
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continue;
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}
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for (
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subDe = readdir(subDir);
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subDe != NULL;
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subDe = readdir(subDir)
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) {
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#define COPY_SAVEFILE(name) \
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(strcmp(subDe->d_name, name) == 0) \
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{ \
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strcpy(oldLocation, subDirLocation); \
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strcat(oldLocation, name); \
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strcpy(newLocation, output); \
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strcat(newLocation, "saves/"); \
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strcat(newLocation, name); \
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PLATFORM_copyFile(oldLocation, newLocation); \
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}
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if COPY_SAVEFILE("unlock.vvv")
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else if COPY_SAVEFILE("tsave.vvv")
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else if COPY_SAVEFILE("qsave.vvv")
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#undef COPY_SAVEFILE
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}
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}
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}
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#elif defined(_WIN32)
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WIN32_FIND_DATA findHandle;
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HANDLE hFind = NULL;
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char fileSearch[MAX_PATH];
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/* Same place, different layout. */
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strcpy(oldDirectory, output);
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/* In theory we don't need to worry about this, thanks case insensitivity!
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sprintf(fileSearch, "%s\\Saves\\*.vvv", oldDirectory);
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hFind = FindFirstFile(fileSearch, &findHandle);
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if (hFind == INVALID_HANDLE_VALUE)
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{
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printf("Could not find directory %s\\Saves\\\n", oldDirectory);
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}
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else do
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{
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if ((findHandle.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
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{
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#define COPY_SAVEFILE(name) \
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(strcmp(findHandle.cFileName, name) == 0) \
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{ \
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strcpy(oldLocation, oldDirectory); \
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strcat(oldLocation, "Saves\\"); \
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strcat(oldLocation, name); \
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strcpy(newLocation, output); \
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strcat(newLocation, "saves\\"); \
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strcat(newLocation, name); \
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PLATFORM_copyFile(oldLocation, newLocation); \
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}
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if COPY_SAVEFILE("unlock.vvv")
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else if COPY_SAVEFILE("tsave.vvv")
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else if COPY_SAVEFILE("qsave.vvv")
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#undef COPY_SAVEFILE
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}
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} while (FindNextFile(hFind, &findHandle));
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*/
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sprintf(fileSearch, "%s\\*.vvvvvv", oldDirectory);
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hFind = FindFirstFile(fileSearch, &findHandle);
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if (hFind == INVALID_HANDLE_VALUE)
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{
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printf("Could not find directory %s\n", oldDirectory);
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}
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else do
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{
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if ((findHandle.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
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{
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strcpy(oldLocation, oldDirectory);
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strcat(oldLocation, findHandle.cFileName);
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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;
|
|
size_t length, bytes_read, bytes_written;
|
|
|
|
/* 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);
|
|
bytes_read = fread(data, 1, length, file);
|
|
fclose(file);
|
|
if (bytes_read != length)
|
|
{
|
|
printf("An error occurred when reading from %s\n", oldLocation);
|
|
free(data);
|
|
return;
|
|
}
|
|
|
|
/* Write data */
|
|
file = fopen(newLocation, "wb");
|
|
if (!file)
|
|
{
|
|
printf("Could not write to %s\n", newLocation);
|
|
free(data);
|
|
return;
|
|
}
|
|
bytes_written = 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);
|
|
if (bytes_written != length)
|
|
{
|
|
printf("Warning: an error occurred when writing to %s\n", newLocation);
|
|
}
|
|
}
|
|
|
|
bool FILESYSTEM_openDirectoryEnabled()
|
|
{
|
|
/* This is just a check to see if we're on a desktop or tenfoot setup.
|
|
* If you're working on a tenfoot-only build, add a def that always
|
|
* returns false!
|
|
*/
|
|
return !SDL_GetHintBoolean("SteamTenfoot", SDL_FALSE);
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
bool FILESYSTEM_openDirectory(const char *dname)
|
|
{
|
|
ShellExecute(NULL, "open", dname, NULL, NULL, SW_SHOWMINIMIZED);
|
|
return true;
|
|
}
|
|
#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__)
|
|
#if defined(__APPLE__) || defined(__HAIKU__)
|
|
const char* open_cmd = "open";
|
|
#else
|
|
const char* open_cmd = "xdg-open";
|
|
#endif
|
|
|
|
extern "C" char** environ;
|
|
|
|
bool FILESYSTEM_openDirectory(const char *dname)
|
|
{
|
|
pid_t child;
|
|
// This const_cast is legal (ctrl-f "The statement" at https://pubs.opengroup.org/onlinepubs/9699919799/functions/exec.html
|
|
char* argv[3] =
|
|
{
|
|
const_cast<char*>(open_cmd),
|
|
const_cast<char*>(dname),
|
|
NULL
|
|
};
|
|
posix_spawnp(&child, open_cmd, NULL, NULL, argv, environ);
|
|
int status = 0;
|
|
waitpid(child, &status, 0);
|
|
return WIFEXITED(status) && WEXITSTATUS(status) == 0;
|
|
}
|
|
#else
|
|
bool FILESYSTEM_openDirectory(const char *dname)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
bool FILESYSTEM_delete(const char *name)
|
|
{
|
|
return PHYSFS_delete(name) != 0;
|
|
}
|