public static ISystem GetSystemNearestTo(Point3D currentpos,
Point3D wantedpos,
double maxfromcurpos,
double maxfromwanted,
SystemsDB.SystemsNearestMetric routemethod,
int limitto)
{
if (SystemsDatabase.Instance.RebuildRunning) // return from cache is rebuild is running
{
lock (systemsByEdsmId)
{
var candidates =
systemsByName.Values
.SelectMany(s => s)
.Select(s => new
{
dc = s.Distance(currentpos.X, currentpos.Y, currentpos.Z),
dw = s.Distance(wantedpos.X, wantedpos.Y, wantedpos.Z),
sys = s
})
.Where(s => s.dw < maxfromwanted && s.dc < maxfromcurpos)
.OrderBy(s => s.dw)
.Select(s => s.sys)
.ToList();
return(DB.SystemsDB.GetSystemNearestTo(candidates, currentpos, wantedpos, maxfromcurpos, maxfromwanted, routemethod));
}
}
else
{
return(SystemsDatabase.Instance.ExecuteWithDatabase(conn => GetSystemNearestTo(currentpos, wantedpos, maxfromcurpos, maxfromwanted, routemethod, limitto, conn)));
}
}
private static ISystem GetSystemNearestTo(Point3D currentpos,
Point3D wantedpos,
double maxfromcurpos,
double maxfromwanted,
SystemsDB.SystemsNearestMetric routemethod,
int limitto,
SystemsDatabaseConnection cn)
{
ISystem sys = DB.SystemsDB.GetSystemNearestTo(currentpos, wantedpos, maxfromcurpos, maxfromwanted, routemethod, cn.Connection, (s) => AddToCache(s), limitto);
return(sys);
}
