forked from exult/exult
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gamedat.cc
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gamedat.cc
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/*
* gamedat.cc - Create gamedat files from a savegame.
*
* Copyright (C) 2000-2013 The Exult Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef _WIN32
#include <io.h>
#endif
#include <fstream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#if defined(XWIN)
#include <sys/stat.h>
#endif
#include <sstream>
#include "exceptions.h"
#include "fnames.h"
#include "gamewin.h"
#include "gameclk.h"
#include "gamemap.h"
#include "utils.h"
#include "gump_utils.h"
#include "game.h"
#include "Flex.h"
#include "databuf.h"
#include "Newfile_gump.h"
#include "Yesno_gump.h"
#include "actors.h"
#include "party.h"
#include "version.h"
#include "array_size.h"
// Zip file support
#ifdef HAVE_ZIP_SUPPORT
#include "files/zip/unzip.h"
#include "files/zip/zip.h"
#endif
#include <cstddef>
#ifndef offsetof // Broken <cstddef>? Just in case...
# define offsetof(type, field) reinterpret_cast<long>(&(static_cast<type *>(0)->field))
#endif
using std::cerr;
using std::cout;
using std::stringstream;
using std::istream;
using std::ostream;
using std::string;
using std::endl;
using std::ifstream;
using std::ios;
using std::memset;
using std::ofstream;
using std::ostream;
using std::size_t;
using std::strchr;
using std::strcmp;
using std::strcpy;
using std::strlen;
using std::strncpy;
using std::time_t;
using std::tm;
using std::localtime;
using std::time;
using std::vector;
// Save game compression level
extern int save_compression;
/*
* Write files from flex assuming first 13 characters of
* each flex object are an 8.3 filename.
*/
void Game_window::restore_flex_files(
IDataSource &in,
const char *basepath
) {
in.seek(0x54); // Get to where file count sits.
int numfiles = in.read4();
in.seek(0x80); // Get to file info.
// Read pos., length of each file.
long *finfo = new long[2 * numfiles];
int i;
for (i = 0; i < numfiles; i++) {
finfo[2 * i] = in.read4(); // The position, then the length.
finfo[2 * i + 1] = in.read4();
}
int baselen = strlen(basepath);
for (i = 0; i < numfiles; i++) { // Now read each file.
// Get file length.
size_t len = finfo[2 * i + 1];
if (len <= 13)
continue;
len -= 13;
in.seek(finfo[2 * i]); // Get to it.
char fname[50]; // Set up name.
strcpy(fname, basepath);
in.read(&fname[baselen], 13);
size_t namelen = strlen(fname);
// Watch for names ending in '.'.
if (fname[namelen - 1] == '.')
fname[namelen - 1] = 0;
// Now read the file.
char *buf = new char[len];
in.read(buf, len);
if (!memcmp(&fname[baselen], "map", 3)) {
// Multimap directory entry.
// Just for safety, we will force-terminate the filename
// at an appropriate position.
namelen = baselen + 5;
fname[namelen] = 0;
IBufferDataSource ds(buf, len);
if (!Flex::is_flex(&ds)) {
// Save is most likely corrupted. Ignore the file but keep
// reading the savegame.
std::cerr << "Error reading flex: file '" << fname
<< "' is not a valid flex file. This probably means a corrupt save game." << endl;
} else {
// fname should be a path hare.
U7mkdir(fname, 0755);
// Append trailing slash:
fname[namelen] = '/';
fname[namelen + 1] = 0;
restore_flex_files(ds, fname);
}
continue;
}
ofstream out;
U7open(out, fname);
out.write(buf, len); // Then write it out.
delete [] buf;
if (!out.good())
abort("Error writing '%s'.", fname);
out.close();
CYCLE_RED_PLASMA();
}
delete [] finfo;
}
// In gamemgr/modmgr.cc because it is also needed by ES.
string get_game_identity(const char *savename, const string &title);
/*
* Write out the gamedat directory from a saved game.
*
* Output: Aborts if error.
*/
void Game_window::restore_gamedat(
const char *fname // Name of savegame file.
) {
// Check IDENTITY.
string id = get_game_identity(fname, Game::get_gametitle());
string static_identity = get_game_identity(INITGAME, Game::get_gametitle());
// Note: "*" means an old game.
if (id.empty() || (id[0] != '*' && static_identity != id)) {
std::string msg("Wrong identity '");
msg += id;
msg += "'. Open anyway?";
if (!Yesno_gump::ask(msg.c_str())) {
return;
}
}
// Check for a ZIP file first
#ifdef HAVE_ZIP_SUPPORT
if (restore_gamedat_zip(fname))
return;
#endif
ifstream in_stream;
#ifdef RED_PLASMA
// Display red plasma during load...
setup_load_palette();
#endif
U7mkdir("<GAMEDAT>", 0755); // Create dir. if not already there. Don't
// use GAMEDAT define cause that's got a
// trailing slash
IFileDataSource in(fname);
if (!in.good()) {
if (!Game::is_editing()) // Ok if map-editing.
throw file_read_exception(fname);
std::cerr << "Warning (map-editing): Couldn't open '" <<
fname << "'" << endl;
return;
}
U7remove(USEDAT);
U7remove(USEVARS);
U7remove(U7NBUF_DAT);
U7remove(NPC_DAT);
U7remove(MONSNPCS);
U7remove(FLAGINIT);
U7remove(GWINDAT);
U7remove(IDENTITY);
U7remove(GSCHEDULE);
U7remove("<STATIC>/flags.flg");
U7remove(GSCRNSHOT);
U7remove(GSAVEINFO);
U7remove(GNEWGAMEVER);
U7remove(GEXULTVER);
U7remove(KEYRINGDAT);
U7remove(NOTEBOOKXML);
cout.flush();
restore_flex_files(in, GAMEDAT);
cout.flush();
#ifdef RED_PLASMA
load_palette_timer = 0;
#endif
}
/*
* Write out the gamedat directory from a saved game.
*
* Output: Aborts if error.
*/
void Game_window::restore_gamedat(
int num // 0-9, currently.
) {
char fname[50]; // Set up name.
snprintf(fname, 50, SAVENAME, num,
Game::get_game_type() == BLACK_GATE ? "bg" :
Game::get_game_type() == SERPENT_ISLE ? "si" : "dev");
restore_gamedat(fname);
}
/*
* List of 'gamedat' files to save (in addition to 'iregxx'):
*/
static const char *bgsavefiles[] = {
GSCRNSHOT, GSAVEINFO, // MUST BE FIRST!!
IDENTITY, // MUST BE #2
GEXULTVER, GNEWGAMEVER,
NPC_DAT, MONSNPCS,
USEVARS, USEDAT,
FLAGINIT, GWINDAT,
GSCHEDULE, NOTEBOOKXML
};
static const int bgnumsavefiles = array_size(bgsavefiles);
static const char *sisavefiles[] = {
GSCRNSHOT, GSAVEINFO, // MUST BE FIRST!!
IDENTITY, // MUST BE #2
GEXULTVER, GNEWGAMEVER,
NPC_DAT, MONSNPCS,
USEVARS, USEDAT,
FLAGINIT, GWINDAT,
GSCHEDULE, KEYRINGDAT,
NOTEBOOKXML
};
static const int sinumsavefiles = array_size(sisavefiles);
static void SavefileFromDataSource(
Flex_writer &flex,
IDataSource &source, // read from here
const char *fname // store data using this filename
) {
flex.write_file(fname, source);
}
/*
* Save a single file into an IFF repository.
*/
static void Savefile(
Flex_writer &flex,
const char *fname // Name of file to save.
) {
IFileDataSource source(fname);
if (!source.good()) {
if (Game::is_editing())
return; // Newly developed game.
throw file_read_exception(fname);
}
SavefileFromDataSource(flex, source, fname);
}
inline static void save_gamedat_chunks(
Game_map *map,
Flex_writer &flex) {
for (int schunk = 0; schunk < 12 * 12; schunk++) {
char iname[128];
//Check to see if the ireg exists before trying to
//save it; prevents crash when creating new maps
//for existing games
if (U7exists(map->get_schunk_file_name(U7IREG, schunk, iname)))
Savefile(flex, iname);
else
flex.empty_object(); // TODO: Get rid of this by making it redundant.
}
}
/*
* Save 'gamedat' into a given file.
*
* Output: 0 if error (reported).
*/
void Game_window::save_gamedat(
const char *fname, // File to create.
const char *savename // User's savegame name.
) {
// First check for compressed save game
#ifdef HAVE_ZIP_SUPPORT
if (save_compression > 0 && save_gamedat_zip(fname, savename))
return;
#endif
// setup correct file list
int numsavefiles = (Game::get_game_type() == BLACK_GATE) ?
bgnumsavefiles : sinumsavefiles;
const char **savefiles = (Game::get_game_type() == BLACK_GATE) ?
bgsavefiles : sisavefiles;
OFileDataSource out(fname);
vector<Game_map *>::iterator it;
int count = numsavefiles; // Count up #files to write.
count += 12 * 12 - 1; // First map outputs IREG's directly to
// gamedat flex, while all others have a flex
// of their own contained in gamedat flex.
for (it = maps.begin(); it != maps.end(); ++it)
if (*it)
count++;
// Use samename for title.
Flex_writer flex(out, savename, count);
int i; // Start with listed files.
for (i = 0; i < numsavefiles; i++) {
Savefile(flex, savefiles[i]);
}
// Now the Ireg's.
for (it = maps.begin(); it != maps.end(); ++it) {
if (!*it)
continue;
if (!(*it)->get_num())
// Map 0 is a special case.
save_gamedat_chunks(*it, flex);
else {
// Multimap directory entries. Each map is stored in their
// own flex file contained inside the general gamedat flex.
char dname[128];
// Need to have read/write access here.
std::stringstream outbuf(std::ios::in | std::ios::out | std::ios::binary);
OStreamDataSource outds(&outbuf);
{
Flex_writer flexbuf(outds,
(*it)->get_mapped_name(GAMEDAT, dname), 12 * 12);
// Save chunks to memory flex
save_gamedat_chunks(*it, flexbuf);
}
outbuf.seekg(0);
IStreamDataSource inds(&outbuf);
SavefileFromDataSource(flex, inds, dname);
}
}
}
/*
* Save to one of the numbered savegame files (and update save_names).
*
* Output: false if error (reported).
*/
void Game_window::save_gamedat(
int num, // 0-9, currently.
const char *savename // User's savegame name.
) {
char fname[50]; // Set up name.
snprintf(fname, 50, SAVENAME, num,
Game::get_game_type() == BLACK_GATE ? "bg" :
Game::get_game_type() == SERPENT_ISLE ? "si" : "dev");
save_gamedat(fname, savename);
if (num >= 0 && num < 10) {
delete [] save_names[num]; // Update name
save_names[num] = newstrdup(savename);
}
}
/*
* Read in the saved game names.
*/
void Game_window::read_save_names(
) {
for (unsigned int i = 0; i < array_size(save_names); i++) {
char fname[50]; // Set up name.
snprintf(fname, 50, SAVENAME, static_cast<int>(i),
GAME_BG ? "bg" : (GAME_SI ? "si" : "dev"));
ifstream in;
try {
U7open(in, fname);
char buf[0x50]; // It's at start of file.
memset(buf, 0, sizeof(buf));
in.read(buf, sizeof(buf) - 1);
if (in.good()) // Okay if file not there.
save_names[i] = newstrdup(buf);
else
save_names[i] = newstrdup("");
in.close();
} catch (const file_exception & /*f*/) {
save_names[i] = newstrdup("");
}
}
}
void Game_window::write_saveinfo() {
int save_count = 1;
{
IFileDataSource ds(GSAVEINFO);
if (ds.good()) {
ds.skip(10); // Skip 10 bytes.
save_count += ds.read2();
}
}
int party_size = party_man->get_count() + 1;
{
OFileDataSource out(GSAVEINFO); // Open file; throws an exception - Don't care
time_t t = time(nullptr);
tm *timeinfo = localtime(&t);
// This order must match struct SaveGame_Details
// Time that the game was saved
out.write1(timeinfo->tm_min);
out.write1(timeinfo->tm_hour);
out.write1(timeinfo->tm_mday);
out.write1(timeinfo->tm_mon + 1);
out.write2(timeinfo->tm_year + 1900);
// The Game Time that the save was done at
out.write1(clock->get_minute());
out.write1(clock->get_hour());
out.write2(clock->get_day());
out.write2(save_count);
out.write1(party_size);
out.write1(0); // Unused
out.write1(timeinfo->tm_sec); // 15
// Packing for the rest of the structure
for (size_t j = offsetof(SaveGame_Details, reserved0);
j < sizeof(SaveGame_Details); j++)
out.write1(0);
for (int i = 0; i < party_size ; i++) {
Actor *npc;
if (i == 0)
npc = main_actor;
else
npc = get_npc(party_man->get_member(i - 1));
char name[18];
std::string namestr = npc->get_npc_name();
strncpy(name, namestr.c_str(), 18);
out.write(name, 18);
out.write2(npc->get_shapenum());
out.write4(npc->get_property(Actor::exp));
out.write4(npc->get_flags());
out.write4(npc->get_flags2());
out.write1(npc->get_property(Actor::food_level));
out.write1(npc->get_property(Actor::strength));
out.write1(npc->get_property(Actor::combat));
out.write1(npc->get_property(Actor::dexterity));
out.write1(npc->get_property(Actor::intelligence));
out.write1(npc->get_property(Actor::magic));
out.write1(npc->get_property(Actor::mana));
out.write1(npc->get_property(Actor::training));
out.write2(npc->get_property(Actor::health));
out.write2(npc->get_shapefile());
// Packing for the rest of the structure
for (size_t j = offsetof(SaveGame_Party, reserved1);
j < sizeof(SaveGame_Party); j++)
out.write1(0);
}
}
{
// Save Shape
std::unique_ptr<Shape_file> map = create_mini_screenshot();
OFileDataSource out(GSCRNSHOT); // Open file; throws an exception - Don't care
map->save(&out);
}
{
// Current Exult version
ofstream out_stream;
U7open(out_stream, GEXULTVER); // Open file; throws an exception - Don't care
getVersionInfo(out_stream);
}
// Exult version that started this game
if (!U7exists(GNEWGAMEVER)) {
OFileDataSource out(GNEWGAMEVER);
const string unkver("Unknown");
out.write(unkver);
}
}
void Game_window::read_saveinfo(IDataSource *in,
SaveGame_Details *&details,
SaveGame_Party *&party) {
int i;
details = new SaveGame_Details;
// This order must match struct SaveGame_Details
// Time that the game was saved
details->real_minute = in->read1();
details->real_hour = in->read1();
details->real_day = in->read1();
details->real_month = in->read1();
details->real_year = in->read2();
// The Game Time that the save was done at
details->game_minute = in->read1();
details->game_hour = in->read1();
details->game_day = in->read2();
details->save_count = in->read2();
details->party_size = in->read1();
details->unused = in->read1(); // Unused
details->real_second = in->read1(); // 15
// Packing for the rest of the structure
in->skip(sizeof(SaveGame_Details) - offsetof(SaveGame_Details, reserved0));
party = new SaveGame_Party[details->party_size];
for (i = 0; i < 8 && i < details->party_size ; i++) {
in->read(party[i].name, 18);
party[i].shape = in->read2();
party[i].exp = in->read4();
party[i].flags = in->read4();
party[i].flags2 = in->read4();
party[i].food = in->read1();
party[i].str = in->read1();
party[i].combat = in->read1();
party[i].dext = in->read1();
party[i].intel = in->read1();
party[i].magic = in->read1();
party[i].mana = in->read1();
party[i].training = in->read1();
party[i].health = in->read2();
party[i].shape_file = in->read2();
// Packing for the rest of the structure
in->skip(sizeof(SaveGame_Party) - offsetof(SaveGame_Party, reserved1));
}
}
bool Game_window::get_saveinfo(int num, char *&name, std::unique_ptr<Shape_file> &map, SaveGame_Details *&details, SaveGame_Party *&party) {
char fname[50]; // Set up name.
snprintf(fname, 50, SAVENAME, num,
Game::get_game_type() == BLACK_GATE ? "bg" :
Game::get_game_type() == SERPENT_ISLE ? "si" : "dev");
// First check for compressed save game
#ifdef HAVE_ZIP_SUPPORT
if (get_saveinfo_zip(fname, name, map, details, party))
return true;
#endif
IFileDataSource in(fname);
if (!in.good()) {
throw file_read_exception(fname);
}
// in case of an error.
// Always try to Read Name
char buf[0x50];
memset(buf, 0, sizeof(buf));
in.read(buf, sizeof(buf) - 1);
name = new char [strlen(buf) + 1];
strcpy(name, buf);
// Isn't a flex, can't actually read it
if (!Flex::is_flex(&in)) return false;
// Now get dir info
in.seek(0x54); // Get to where file count sits.
size_t numfiles = in.read4();
in.seek(0x80); // Get to file info.
// Read pos., length of each file.
auto finfo = std::make_unique<uint32[]>(2 * numfiles);
for (size_t i = 0; i < numfiles; i++) {
finfo[2 * i] = in.read4(); // The position, then the length.
finfo[2 * i + 1] = in.read4();
}
// Always first two entires
for (size_t i = 0; i < 2; i++) { // Now read each file.
// Get file length.
size_t len = finfo[2 * i + 1];
if (len <= 13)
continue;
len -= 13;
in.seek(finfo[2 * i]); // Get to it.
char fname[50]; // Set up name.
strcpy(fname, GAMEDAT);
in.read(&fname[sizeof(GAMEDAT) - 1], 13);
size_t namelen = strlen(fname);
// Watch for names ending in '.'.
if (fname[namelen - 1] == '.')
fname[namelen - 1] = 0;
if (!strcmp(fname, GSCRNSHOT)) {
auto ds = in.makeSource(len);
map = std::make_unique<Shape_file>(ds.get());
} else if (!strcmp(fname, GSAVEINFO)) {
read_saveinfo(&in, details, party);
}
}
return true;
}
void Game_window::get_saveinfo(std::unique_ptr<Shape_file> &map, SaveGame_Details *&details, SaveGame_Party *&party) {
{
IFileDataSource ds(GSAVEINFO);
if (ds.good()) {
read_saveinfo(&ds, details, party);
} else {
details = nullptr;
party = nullptr;
}
}
{
IFileDataSource ds(GSCRNSHOT);
if (ds.good()) {
map = std::make_unique<Shape_file>(&ds);
} else {
map.reset();
}
}
}
// Zip file support
#ifdef HAVE_ZIP_SUPPORT
static const char *remove_dir(const char *fname) {
const char *base = strchr(fname, '/');// Want the base name.
if (!base)
base = strchr(fname, '\\');
if (base)
return base + 1;
return fname;
}
bool Game_window::get_saveinfo_zip(const char *fname, char *&name, std::unique_ptr<Shape_file> &map, SaveGame_Details *&details, SaveGame_Party *&party) {
// If a flex, so can't read it
if (Flex::is_flex(fname)) return false;
std::string filestr = get_system_path(fname);
unzFile unzipfile = unzOpen(filestr.c_str());
if (!unzipfile) return false;
// Name comes from comment
char namebuf[0x50];
if (unzGetGlobalComment(unzipfile, namebuf, 0x50) <= 0) strncpy(namebuf, "UNNAMED", 0x50);
name = new char [strlen(namebuf) + 1];
strcpy(name, namebuf);
// Things we need
unz_file_info file_info;
char *buf = nullptr;
// Get the screenshot first
if (unzLocateFile(unzipfile, remove_dir(GSCRNSHOT), 2) == UNZ_OK) {
unzGetCurrentFileInfo(unzipfile, &file_info, nullptr, 0, nullptr, 0, nullptr, 0);
buf = new char[file_info.uncompressed_size];
unzOpenCurrentFile(unzipfile);
unzReadCurrentFile(unzipfile, buf, file_info.uncompressed_size);
if (unzCloseCurrentFile(unzipfile) == UNZ_OK) {
IBufferDataSource ds(buf, file_info.uncompressed_size);
map = std::make_unique<Shape_file>(&ds);
} else {
delete [] buf;
}
}
// Now saveinfo
if (unzLocateFile(unzipfile, remove_dir(GSAVEINFO), 2) == UNZ_OK) {
unzGetCurrentFileInfo(unzipfile, &file_info, nullptr, 0, nullptr, 0, nullptr, 0);
buf = new char[file_info.uncompressed_size];
unzOpenCurrentFile(unzipfile);
unzReadCurrentFile(unzipfile, buf, file_info.uncompressed_size);
if (unzCloseCurrentFile(unzipfile) == UNZ_OK) {
IBufferDataSource ds(buf, file_info.uncompressed_size);
read_saveinfo(&ds, details, party);
} else {
delete [] buf;
}
}
unzClose(unzipfile);
return true;
}
// Level 2 Compression
bool Game_window::Restore_level2(
void *uzf, const char *dirname, int dirlen
) {
auto *unzipfile = static_cast<unzFile>(uzf);
char oname[50]; // Set up name.
char *oname2 = oname + sizeof(GAMEDAT) + dirlen - 1;
strcpy(oname, dirname);
oname2[0] = '/';
oname2++;
if (unzOpenCurrentFile(unzipfile) != UNZ_OK) {
std::cerr << "Couldn't open current file" << std::endl;
return false;
}
while (!unzeof(unzipfile)) {
// Read Filename
oname2[12] = 0;
if (unzReadCurrentFile(unzipfile, oname2, 12) != 12) {
std::cerr << "Couldn't read for filename" << std::endl;
return false;
}
// Check to see if was are at the end of the list
if (*oname2 == 0) break;
// Get file length.
unsigned char size_buffer[4];
if (unzReadCurrentFile(unzipfile, size_buffer, 4) != 4) {
std::cerr << "Couldn't read for size" << std::endl;
return false;
}
const unsigned char *ptr = size_buffer;
int size = Read4(ptr);
if (size) {
// Watch for names ending in '.'.
int namelen = strlen(oname);
if (oname[namelen - 1] == '.')
oname[namelen - 1] = 0;
// Now read the file.
char *buf = new char[size];
if (unzReadCurrentFile(unzipfile, buf, size) != size) {
delete [] buf;
std::cerr << "Couldn't read for buf" << std::endl;
return false;
}
// Then write it out.
ofstream out;
U7open(out, oname);
out.write(buf, size);
delete [] buf;
if (!out.good()) {
std::cerr << "out was bad" << std::endl;
return false;
}
out.close();
CYCLE_RED_PLASMA();
}
}
return unzCloseCurrentFile(unzipfile) == UNZ_OK;
}
/*
* Write out the gamedat directory from a saved game.
*
* Output: Aborts if error.
*/
bool Game_window::restore_gamedat_zip(
const char *fname // Name of savegame file.
) {
// If a flex, so can't read it
try {
if (Flex::is_flex(fname)) return false;
} catch (const file_exception & /*f*/) {
return false; // Ignore if not found.
}
#ifdef RED_PLASMA
// Display red plasma during load...
setup_load_palette();
#endif
std::string filestr = get_system_path(fname);
unzFile unzipfile = unzOpen(filestr.c_str());
if (!unzipfile) return false;
U7mkdir("<GAMEDAT>", 0755); // Create dir. if not already there. Don't
// use GAMEDAT define cause that's got a
// trailing slash
U7remove(USEDAT);
U7remove(USEVARS);
U7remove(U7NBUF_DAT);
U7remove(NPC_DAT);
U7remove(MONSNPCS);
U7remove(FLAGINIT);
U7remove(GWINDAT);
U7remove(IDENTITY);
U7remove(GSCHEDULE);
U7remove("<STATIC>/flags.flg");
U7remove(GSCRNSHOT);
U7remove(GSAVEINFO);
U7remove(GNEWGAMEVER);
U7remove(GEXULTVER);
U7remove(KEYRINGDAT);
U7remove(NOTEBOOKXML);
cout.flush();
unz_global_info global;
unzGetGlobalInfo(unzipfile, &global);
// Now read each file.
char oname[50]; // Set up name.
char *oname2 = oname + sizeof(GAMEDAT) - 1;
strcpy(oname, GAMEDAT);
bool level2zip = false;
do {
unz_file_info file_info;
// For safer handling, better do it in two steps.
unzGetCurrentFileInfo(unzipfile, &file_info,
nullptr, 0,
nullptr, 0,
nullptr, 0);
// Get the needed buffer size.
int filenamelen = file_info.size_filename;
unzGetCurrentFileInfo(unzipfile, nullptr,
oname2, filenamelen,
nullptr, 0,
nullptr, 0);
oname2[filenamelen] = 0;
// Get file length.
int len = file_info.uncompressed_size;
if (len <= 0)
continue;
// Level 2 compression handling
if (level2zip) {
// Files for map # > 0; create dir first.
U7mkdir(oname, 0755);
// Put a final marker in the dir name.
if (!Restore_level2(unzipfile, oname, filenamelen))
abort("Error reading level2 from zip '%s'.", fname);
continue;
} else if (!std::strcmp("GAMEDAT", oname2)) {
// Put a final marker in the dir name.
if (!Restore_level2(unzipfile, oname, 0))
abort("Error reading level2 from zip '%s'.", fname);
// Flag that this is a level 2 save.
level2zip = true;
continue;
}
// Watch for names ending in '.'.
int namelen = strlen(oname);
if (oname[namelen - 1] == '.')
oname[namelen - 1] = 0;
// Watch out for multimap games.
for (size_t i = 0; i < strlen(oname2); i++) {
//Doing it the right way this time.
if (oname2[i] == '/') {
//May need to create a mapxx directory here
oname2[i] = 0;
U7mkdir(oname, 0755);
oname2[i] = '/';
}
}
// Open the file in the zip
if (unzOpenCurrentFile(unzipfile) != UNZ_OK)
abort("Error opening current from zipfile '%s'.", fname);
// Now read the file.
char *buf = new char[len];
if (unzReadCurrentFile(unzipfile, buf, len) != len)
abort("Error reading current from zip '%s'.", fname);
// now write it out.
ofstream out;
U7open(out, oname);
out.write(buf, len);
if (!out.good()) abort("Error writing to '%s'.", oname);
out.close();
// Close the file in the zip
if (unzCloseCurrentFile(unzipfile) != UNZ_OK)
abort("Error closing current in zip '%s'.", fname);
delete [] buf;
CYCLE_RED_PLASMA();
} while (unzGoToNextFile(unzipfile) == UNZ_OK);
unzClose(unzipfile);
cout.flush();
#ifdef RED_PLASMA
load_palette_timer = 0;
#endif
return true;
}
// Level 1 Compression
static bool Save_level1(zipFile zipfile, const char *fname) {
IFileDataSource ds(fname);
if (!ds.good()) {
if (Game::is_editing())
return false; // Newly developed game.
throw file_read_exception(fname);
}
unsigned int size = ds.getSize();
auto buf = ds.readN(size);
zipOpenNewFileInZip(zipfile, remove_dir(fname), nullptr, nullptr, 0,
nullptr, 0, nullptr, Z_DEFLATED, Z_BEST_COMPRESSION);
zipWriteInFileInZip(zipfile, buf.get(), size);
return zipCloseFileInZip(zipfile) == ZIP_OK;
}
// Level 2 Compression
static bool Begin_level2(zipFile zipfile, int mapnum) {
char oname[8]; // Set up name.
if (mapnum == 0) {
strcpy(oname, "GAMEDAT");
oname[7] = 0;
} else {
strcpy(oname, "map");
constexpr static const char hexLUT[] = "0123456789abcdef";
oname[3] = hexLUT[mapnum / 16];
oname[4] = hexLUT[mapnum % 16];
oname[5] = 0;
}
return zipOpenNewFileInZip(zipfile, oname, nullptr, nullptr, 0,
nullptr, 0, nullptr, Z_DEFLATED, Z_BEST_COMPRESSION) == ZIP_OK;