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Significantly optimize LevelDB database backend

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This commit is contained in:
ShadowNinja
2014-03-28 16:47:19 -04:00
parent 6e565e93d1
commit 5905c34ec0
6 changed files with 61 additions and 49 deletions
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13
TileGenerator.cpp
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@ -17,6 +17,7 @@
#include <stdexcept>
#include <cerrno>
#include <cstring>
#include <vector>
#include "config.h"
#include "PlayerAttributes.h"
#include "TileGenerator.h"
@ -308,17 +309,17 @@ void TileGenerator::openDb(const std::string &input)
void TileGenerator::loadBlocks()
{
std::vector<int64_t> vec = m_db->getBlockPos();
for(unsigned int i = 0; i < vec.size(); i++) {
BlockPos pos = decodeBlockPos(vec[i]);
for(std::vector<int64_t>::iterator it = vec.begin(); it != vec.end(); ++it) {
BlockPos pos = decodeBlockPos(*it);
// Check that it's in geometry (from --geometry option)
if (pos.x < m_geomX || pos.x > m_geomX2 || pos.z < m_geomY || pos.z > m_geomY2) {
continue;
}
if (pos.y < m_yMin * 16) {
continue;
}
if (pos.y > m_yMax * 16) {
// Check that it's between --miny and --maxy
if (pos.y < m_yMin * 16 || pos.y > m_yMax * 16) {
continue;
}
// Adjust minimum and maximum positions to the nearest block
if (pos.x < m_xMin) {
m_xMin = pos.x;
}