ddnet/src/tools/map_extract.cpp

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// Adapted from TWMapImagesRecovery by Tardo: https://github.com/Tardo/TWMapImagesRecovery
#include <base/logger.h>
#include <base/system.h>
#include <engine/gfx/image_loader.h>
#include <engine/shared/datafile.h>
#include <engine/storage.h>
#include <game/mapitems.h>
bool Process(IStorage *pStorage, const char *pMapName, const char *pPathSave)
{
CDataFileReader Reader;
if(!Reader.Open(pStorage, pMapName, IStorage::TYPE_ABSOLUTE))
{
dbg_msg("map_extract", "error opening map '%s'", pMapName);
return false;
}
// check version
CMapItemVersion *pVersion = (CMapItemVersion *)Reader.FindItem(MAPITEMTYPE_VERSION, 0);
if(pVersion && pVersion->m_Version != 1)
return false;
dbg_msg("map_extract", "Make sure you have the permission to use these images and sounds in your own maps");
CMapItemInfo *pInfo = (CMapItemInfo *)Reader.FindItem(MAPITEMTYPE_INFO, 0);
if(pInfo)
{
dbg_msg("map_extract", "author: %s", (char *)Reader.GetData(pInfo->m_Author));
dbg_msg("map_extract", "version: %s", (char *)Reader.GetData(pInfo->m_MapVersion));
dbg_msg("map_extract", "credits: %s", (char *)Reader.GetData(pInfo->m_Credits));
dbg_msg("map_extract", "license: %s", (char *)Reader.GetData(pInfo->m_License));
}
int Start, Num;
// load images
Reader.GetType(MAPITEMTYPE_IMAGE, &Start, &Num);
for(int i = 0; i < Num; i++)
{
CMapItemImage *pItem = (CMapItemImage *)Reader.GetItem(Start + i, nullptr, nullptr);
char *pName = (char *)Reader.GetData(pItem->m_ImageName);
if(pItem->m_External)
continue;
char aBuf[512];
str_format(aBuf, sizeof(aBuf), "%s/%s.png", pPathSave, pName);
dbg_msg("map_extract", "writing image: %s (%dx%d)", aBuf, pItem->m_Width, pItem->m_Height);
// copy image data
IOHANDLE File = io_open(aBuf, IOFLAG_WRITE);
if(File)
{
TImageByteBuffer ByteBuffer;
SImageByteBuffer ImageByteBuffer(&ByteBuffer);
if(SavePNG(IMAGE_FORMAT_RGBA, (const uint8_t *)Reader.GetData(pItem->m_ImageData), ImageByteBuffer, pItem->m_Width, pItem->m_Height))
io_write(File, &ByteBuffer.front(), ByteBuffer.size());
io_close(File);
}
}
// load sounds
Reader.GetType(MAPITEMTYPE_SOUND, &Start, &Num);
for(int i = 0; i < Num; i++)
{
CMapItemSound *pItem = (CMapItemSound *)Reader.GetItem(Start + i, nullptr, nullptr);
char *pName = (char *)Reader.GetData(pItem->m_SoundName);
if(pItem->m_External)
continue;
char aBuf[512];
str_format(aBuf, sizeof(aBuf), "%s/%s.opus", pPathSave, pName);
dbg_msg("map_extract", "writing sound: %s (%d B)", aBuf, pItem->m_SoundDataSize);
IOHANDLE Opus = io_open(aBuf, IOFLAG_WRITE);
io_write(Opus, (unsigned char *)Reader.GetData(pItem->m_SoundData), pItem->m_SoundDataSize);
io_close(Opus);
}
return Reader.Close();
}
int main(int argc, const char *argv[])
{
CCmdlineFix CmdlineFix(&argc, &argv);
log_set_global_logger_default();
IStorage *pStorage = CreateLocalStorage();
if(!pStorage)
return -1;
const char *pDir;
if(argc == 2)
{
pDir = ".";
}
else if(argc == 3)
{
pDir = argv[2];
}
else
{
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dbg_msg("usage", "%s map [directory]", argv[0]);
return -1;
}
if(!fs_is_dir(pDir))
{
dbg_msg("usage", "directory '%s' does not exist", pDir);
return -1;
}
int Result = Process(pStorage, argv[1], pDir) ? 0 : 1;
return Result;
}