internal static MazeData GetFieldData()
{
var maze = new MazeData(fieldSize);
for (int i = 1; i < fieldSize + 1; i++)
{
for (int j = 1; j < fieldSize + 1; j++)
{
var n = field[i, j];
if (n > 0 && n < 4)
{
maze.cellsList.Add(new cellStruct(i, j, n));
}
}
}
return(maze);
}
internal static void SaveMazeToDB(MazeData maze, string name, string dt)
{
using (var connection = new SQLiteConnection(DatabaseSource))
using (var command = new SQLiteCommand(connection))
{
connection.Open();
//сохраняем имя таблицы
command.CommandText = $"INSERT INTO [Mazes]([NAME], [DT], [SIZE]) " +
$"VALUES(\"{name}\", \"{dt}\", {maze.fieldSize});";
command.ExecuteNonQuery();
//считываем номер записанной таблицы
int id = 0;
command.CommandText = "SELECT MAX(ID) FROM [Mazes];";
using (var reader = command.ExecuteReader())
{
if (reader.Read())
{
id = reader.GetInt32(0);
}
}
using (var transaction = connection.BeginTransaction())
{
//вставляем в цикле (?) ячейки из списка
string insertCmd = "INSERT INTO [Cells] (IDMAZE, X, Y, VALUE) VALUES(?, ?, ?, ?)";
foreach (var cell in maze.cellsList)
{
using (var cmd = new SQLiteCommand(insertCmd, connection))
{
cmd.Parameters.AddWithValue("@IDMAZE", id);
cmd.Parameters.AddWithValue("@X", cell.x);
cmd.Parameters.AddWithValue("@Y", cell.y);
cmd.Parameters.AddWithValue("@VALUE", cell.value);
cmd.ExecuteNonQuery();
}
}
transaction.Commit();
}
connection.Close(); // Close the connection to the database
}
}
internal static void SetFieldData(MazeData maze)
{
ResetField(maze.fieldSize, false);
foreach (var cell in maze.cellsList)
{
field[cell.x, cell.y] = cell.value;
if (cell.value == 2)
{
pStart = new Point(cell.x, cell.y);
}
if (cell.value == 3)
{
pEnd = new Point(cell.x, cell.y);
}
}
}
internal static void LoadMazeFromDB(int id, int size)
{
using (var connection = new SQLiteConnection(DatabaseSource))
using (var command = new SQLiteCommand(connection))
{
connection.Open();
command.CommandText = "Select [X], [Y], [VALUE] FROM [Cells] WHERE [IDMAZE]=" + id.ToString();
MazeData maze = new MazeData(size);
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
maze.cellsList.Add(new cellStruct(reader.GetInt32(0), reader.GetInt32(1), reader.GetInt32(2)));
}
}
connection.Close(); // Close the connection to the database
Helper.SetFieldData(maze);
}
}
