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#include "grfio.hpp"
// grfio.cpp - Don't read GRF files, just name-map .wlk files.
//
// Copyright © ????-2004 Athena Dev Teams
// Copyright © 2004-2011 The Mana World Development Team
// Copyright © 2011-2014 Ben Longbons <b.r.longbons@gmail.com>
//
// This file is part of The Mana World (Athena server)
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
#include <fcntl.h>
#include <unistd.h>
#include <cassert>
#include <map>
#include "../strings/mstring.hpp"
#include "../strings/rstring.hpp"
#include "../strings/astring.hpp"
#include "../strings/zstring.hpp"
#include "../io/cxxstdio.hpp"
#include "../io/extract.hpp"
#include "../io/read.hpp"
#include "../high/extract_mmo.hpp"
#include "../high/mmo.hpp"
#include "../poison.hpp"
namespace tmwa
{
static
std::map<MapName, RString> resnametable;
bool load_resnametable(ZString filename)
{
io::ReadFile in(filename);
if (!in.is_open())
{
FPRINTF(stderr, "Missing %s\n"_fmt, filename);
return false;
}
bool rv = true;
AString line;
while (in.getline(line))
{
MapName key;
AString value;
if (!extract(line,
record<'#'>(&key, &value)))
{
PRINTF("Bad resnametable line: %s\n"_fmt, line);
rv = false;
continue;
}
// TODO add "data/" here ...
resnametable[key] = value;
}
return rv;
}
/// Change *.gat to *.wlk
static
RString grfio_resnametable(MapName rname)
{
// TODO return an error instead of throwing an exception
return resnametable.at(rname);
}
std::vector<uint8_t> grfio_reads(MapName rname)
{
MString lfname_;
// TODO ... instead of here
lfname_ += "data/"_s;
lfname_ += grfio_resnametable(rname);
AString lfname = AString(lfname_);
// TODO wrap this immediately
int fd = open(lfname.c_str(), O_RDONLY);
if (fd == -1)
{
FPRINTF(stderr, "Resource %s (file %s) not found\n"_fmt,
rname, lfname);
return {};
}
off_t len = lseek(fd, 0, SEEK_END);
assert (len != -1);
std::vector<uint8_t> buffer(len);
ssize_t err = pread(fd, buffer.data(), len, 0);
assert (err == len);
close(fd);
return buffer;
}
} // namespace tmwa
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