bool Map::loadOtcm(const std::string& fileName)
{
try {
FileStreamPtr fin = g_resources.openFile(fileName);
if(!fin)
stdext::throw_exception("unable to open file");
stdext::timer loadTimer;
fin->cache();
uint32 signature = fin->getU32();
if(signature != OTCM_SIGNATURE)
stdext::throw_exception("invalid otcm file");
uint16 start = fin->getU16();
uint16 version = fin->getU16();
fin->getU32(); // flags
switch(version) {
case 1: {
fin->getString(); // description
uint32 datSignature = fin->getU32();
fin->getU16(); // protocol version
fin->getString(); // world name
if(datSignature != g_things.getDatSignature())
g_logger.warning("otcm map loaded was created with a different dat signature");
break;
}
default:
stdext::throw_exception("otcm version not supported");
}
fin->seek(start);
while(true) {
Position pos;
pos.x = fin->getU16();
pos.y = fin->getU16();
pos.z = fin->getU8();
// end of file
if(!pos.isValid())
break;
const TilePtr& tile = g_map.createTile(pos);
int stackPos = 0;
while(true) {
int id = fin->getU16();
// end of tile
if(id == 0xFFFF)
break;
int countOrSubType = fin->getU8();
ItemPtr item = Item::create(id);
item->setCountOrSubType(countOrSubType);
if(item->isValid())
tile->addThing(item, stackPos++);
}
}
fin->close();
g_logger.debug(stdext::format("Otcm load time: %.2f seconds", loadTimer.elapsed_seconds()));
return true;
} catch(stdext::exception& e) {
g_logger.error(stdext::format("failed to load OTCM map: %s", e.what()));
return false;
}
}
