public static int New(string prefix)
{
string filename = prefix + "_AI.bin";
BinaryHelper<packAI> binaryHelper = new BinaryHelper<packAI>();
if (!binaryHelper.FileExists(filename) )
{
binaryHelper.SaveObject(new packAI()
{
Number = 0
}, filename);
}
packAI pack = binaryHelper.LoadObject(filename);
pack.Number++;
binaryHelper.SaveObject(pack,filename);
return pack.Number;
}