mirror of
https://github.com/minetest/minetestmapper.git
synced 2024-11-16 07:30:28 +01:00
88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
#include <cstdio>
|
|
#include <fstream>
|
|
#include <sstream>
|
|
#include <stdexcept>
|
|
#include <dirent.h>
|
|
#include <unistd.h> // for usleep
|
|
#include <sqlite3.h>
|
|
|
|
#include "config.h"
|
|
#include "POIAttributes.h"
|
|
#include "util.h"
|
|
|
|
POIAttributes::POIAttributes(const std::string &worldDir)
|
|
{
|
|
std::ifstream ifs(worldDir + "world.mt");
|
|
if (!ifs.good())
|
|
throw std::runtime_error("Failed to read world.mt");
|
|
std::string backend = read_setting_default("mod_storage_backend", ifs, "sqlite3");
|
|
ifs.close();
|
|
|
|
if (backend == "sqlite3")
|
|
readSqlite(worldDir + "mod_storage.sqlite");
|
|
else
|
|
throw std::runtime_error(std::string("Unknown poi backend: ") + backend);
|
|
}
|
|
|
|
/**********/
|
|
|
|
#define SQLRES(f, good) \
|
|
result = (sqlite3_##f); \
|
|
if (result != good) { \
|
|
throw std::runtime_error(sqlite3_errmsg(db));\
|
|
}
|
|
#define SQLOK(f) SQLRES(f, SQLITE_OK)
|
|
|
|
void POIAttributes::readSqlite(const std::string &db_name)
|
|
{
|
|
int result;
|
|
sqlite3 *db;
|
|
sqlite3_stmt *stmt_get_poi_pos;
|
|
|
|
SQLOK(open_v2(db_name.c_str(), &db, SQLITE_OPEN_READONLY |
|
|
SQLITE_OPEN_PRIVATECACHE, 0))
|
|
|
|
SQLOK(prepare_v2(db,
|
|
"SELECT key, value FROM entries WHERE modname = 'poi'",
|
|
-1, &stmt_get_poi_pos, NULL))
|
|
|
|
while ((result = sqlite3_step(stmt_get_poi_pos)) != SQLITE_DONE) {
|
|
if (result == SQLITE_BUSY) { // Wait some time and try again
|
|
usleep(10000);
|
|
} else if (result != SQLITE_ROW) {
|
|
throw std::runtime_error(sqlite3_errmsg(db));
|
|
}
|
|
|
|
POI poi;
|
|
const unsigned char *name_ = sqlite3_column_text(stmt_get_poi_pos, 0);
|
|
poi.name = reinterpret_cast<const char*>(name_);
|
|
const char *pos_ = reinterpret_cast<const char*>(sqlite3_column_text(stmt_get_poi_pos, 1));
|
|
float x, y, z;
|
|
int items = sscanf(pos_, "(%f,%f,%f)", &x, &y, &z);
|
|
if (items != 3) {
|
|
std::cerr << "Failed to parse POI position '" << pos_ << "'" << std::endl;
|
|
return;
|
|
}
|
|
poi.x = x;
|
|
poi.y = y;
|
|
poi.z = z;
|
|
|
|
m_pois.push_back(poi);
|
|
}
|
|
|
|
sqlite3_finalize(stmt_get_poi_pos);
|
|
sqlite3_close(db);
|
|
}
|
|
|
|
/**********/
|
|
|
|
POIAttributes::POIs::const_iterator POIAttributes::begin() const
|
|
{
|
|
return m_pois.cbegin();
|
|
}
|
|
|
|
POIAttributes::POIs::const_iterator POIAttributes::end() const
|
|
{
|
|
return m_pois.cend();
|
|
}
|