本文整理汇总了C++中BlockMap::clear方法的典型用法代码示例。如果您正苦于以下问题：C++ BlockMap::clear方法的具体用法？C++ BlockMap::clear怎么用？C++ BlockMap::clear使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BlockMap的用法示例。
在下文中一共展示了BlockMap::clear方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: renderWorldToFile
void Cartographer::renderWorldToFile(
const std::string worldDir, const std::string filename)
{
std::cout << "Cartographer: fetching world files..." << std::endl;
MapLoader loader(worldDir);
std::set<Vector3i> blockPositions;
loader.getAllBlockPositions(blockPositions);
std::cout << "| Found "
<< blockPositions.size() << " block files." << std::endl;
if(blockPositions.size() == 0)
{
std::cout << "Cartographer: the world is empty : aborted" << std::endl;
return;
}
std::cout << "Cartographer: Computing world edges... " << std::endl;
Vector3i min, max;
for(auto & pos : blockPositions)
{
if(pos.x < min.x) min.x = pos.x;
if(pos.x > max.x) max.x = pos.x;
if(pos.y < min.y) min.y = pos.y;
if(pos.y > max.y) max.y = pos.y;
if(pos.z < min.z) min.z = pos.z;
if(pos.z > max.z) max.z = pos.z;
}
std::cout << "| min=" << min << ", max=" << max << std::endl;
const Vector3i area = max - min;
if( area.x >= MAX_SIZE_BLOCKS ||
area.y >= MAX_SIZE_BLOCKS ||
area.z >= MAX_SIZE_BLOCKS)
{
std::cout << "ERROR: Cartographer: cannot perform a full one-picture "
<< "rendering, the world is too big." << std::endl;
return;
}
std::cout << "| Done." << std::endl;
std::cout << "Cartographer: rendering..." << std::endl;
BlockMap map;
Vector3i pos;
Cartography cartography;
for(pos.x = min.x; pos.x <= max.x; pos.x++)
{
for(pos.y = min.y; pos.y <= max.y; pos.y++)
{
// Load a Z-wise chunk
for(pos.z = min.z; pos.z <= max.z; pos.z++)
{
if(loader.isBlockOnHardDrive(pos))
{
Block * b = loader.loadBlock(pos);
if(b != 0)
map.setBlock(b);
}
}
// Render the chunk
sf::Image pic = renderChunkTopDown(
map, pos.x, pos.y, Block::SIZE * min.z, Block::SIZE * (max.z+1));
// Add it to the cartography
cartography.setPictureFromImage(Vector2i(pos.x, pos.y), pic);
// Clear map
map.clear();
}
// Progress
int p = 100.f * (float)(pos.x - min.x) / (float)(max.x - min.x);
std::cout << "| Progress : " << p << "%" << std::endl;
}
std::cout << "| Done." << std::endl;
std::cout << "Cartographer: Saving cartography..." << std::endl;
cartography.saveAsBigImage(filename);
std::cout << "Cartographer: Finished." << std::endl;
}