bool ExamplePageProvider::loadPage( const int16 x, const int16 y, PageInitParams * pInitParams, IOverhangTerrainPage * pPage )
{
const static size_t HALF = 1 << ((sizeof(size_t) << 3) - 1);
const Real r = Real(3.1415926535897932 / 180.0);
const size_t
nTverts = pInitParams->countVerticesPerPageSide,
x0 = size_t(int16(nTverts - 1) * x + HALF),
y0 = size_t(int16(nTverts - 1) * y + HALF);
for (size_t j = y0; j < nTverts + y0; ++j)
for (size_t i = x0; i < nTverts + x0; ++i)
pInitParams->heightmap[((nTverts - 1) - (j - y0)) * nTverts + (i - x0)] = Real(cos(double(i)*r*1.5)*100 + sin(double(j)*r*1.5)*100);
*pPage << *pInitParams;
try
{
StreamSerialiser ins = StreamSerialiser(Root::getSingleton().openFileStream(createFilePath(x, y), _sResourceGroupName));
Ogre::LogManager::getSingletonPtr() ->stream(LML_NORMAL) << "Reading from terrain page (" << x << "x" << y << ")";
*pPage << ins;
} catch (Exception & e)
{
Ogre::LogManager::getSingletonPtr() ->stream(LML_CRITICAL) << "Failure opening terrain page (" << x << "x" << y << "): " << e.getFullDescription();
}
pPage->conjoin();
return true;
}
bool ExamplePageProvider::savePage( const IOverhangTerrainPage * pPage, const int16 x, const int16 y, const size_t nPageAxis, const unsigned long nTotalPageSize )
{
try
{
StreamSerialiser outs = StreamSerialiser(Root::getSingleton().createFileStream(createFilePath(x, y), _sResourceGroupName, true));
*pPage >> outs;
} catch (Exception & e)
{
Ogre::LogManager::getSingletonPtr() ->stream(LML_CRITICAL) << "Failure writing terrain page (" << x << "x" << y << "): " << e.getFullDescription();
}
return true; // Height maps don't need to be saved, meta-balls embody terrain deformation state
}
//---------------------------------------------------------------------
StreamSerialiser* PageManager::_readWorldStream(const String& filename)
{
StreamSerialiser* ser = 0;
if (mPageProvider)
ser = mPageProvider->readWorldStream(filename);
if (!ser)
{
// use default implementation
DataStreamPtr stream = ResourceGroupManager::getSingleton().openResource(
filename);
ser = OGRE_NEW StreamSerialiser(stream);
}
return ser;
}
//---------------------------------------------------------------------
StreamSerialiser* PageManager::_writeWorldStream(const String& filename)
{
StreamSerialiser* ser = 0;
if (mPageProvider)
ser = mPageProvider->writeWorldStream(filename);
if (!ser)
{
// use default implementation
// create file, overwrite if necessary
DataStreamPtr stream = ResourceGroupManager::getSingleton().createResource(
filename, mPageResourceGroup, true);
ser = OGRE_NEW StreamSerialiser(stream);
}
return ser;
}
//---------------------------------------------------------------------
StreamSerialiser* PageManager::_readPageStream(PageID pageID, PagedWorldSection* section)
{
StreamSerialiser* ser = 0;
if (mPageProvider)
ser = mPageProvider->readPageStream(pageID, section);
if (!ser)
{
// use default implementation
StringUtil::StrStreamType nameStr;
nameStr << section->getWorld()->getName() << "_" << section->getName()
<< "_" << pageID << ".page";
DataStreamPtr stream = ResourceGroupManager::getSingleton().openResource(nameStr.str());
ser = OGRE_NEW StreamSerialiser(stream);
}
return ser;
}
//---------------------------------------------------------------------
StreamSerialiser* PageManager::_writePageStream(PageID pageID, PagedWorldSection* section)
{
StreamSerialiser* ser = 0;
if (mPageProvider)
ser = mPageProvider->writePageStream(pageID, section);
if (!ser)
{
// use default implementation
StringUtil::StrStreamType nameStr;
nameStr << section->getWorld()->getName() << "_" << section->getName()
<< "_" << pageID << ".page";
// create file, overwrite if necessary
DataStreamPtr stream = ResourceGroupManager::getSingleton().createResource(
nameStr.str(), mPageResourceGroup, true);
ser = OGRE_NEW StreamSerialiser(stream);
}
return ser;
}
