private async void OnOkClicked(object sender, RoutedEventArgs e)
{
this.IsEnabled = false;
try
{
BoardDescription templateDescription = this.boardFormatter.ParseBoardDescription(this.TemplateDescription);
BoardTemplate template = new BoardTemplate(templateDescription.Width, templateDescription.Height, templateDescription.Values);
BoardDescription goalDescription = this.boardFormatter.ParseBoardDescription(this.GoalDescription);
BoardGoal goal = new BoardGoal(goalDescription.Width, goalDescription.Height, goalDescription.Values);
Drill drillToSave = this.drill.Update(this.DrillName, template, goal);
if (this.update)
{
await this.drillService.Update(drillToSave);
}
else
{
await this.drillService.Add(drillToSave);
}
this.SavedDrill = drillToSave;
this.Close();
}
catch (InvalidBoardException exception)
{
MessageBox.Show(
this,
string.Join(Environment.NewLine, exception.Errors.Select(x => x.Message)),
"Invalid board",
MessageBoxButton.OK,
MessageBoxImage.Warning);
}
catch (InvalidDrillException exception)
{
MessageBox.Show(this, exception.Message, "Invalid drill", MessageBoxButton.OK, MessageBoxImage.Warning);
}
catch
{
MessageBox.Show("An unexpected error occured during saving.");
}
finally
{
this.IsEnabled = true;
}
}
public BoardState Generate(BoardTemplate template)
{
if (template == null)
{
throw new ArgumentNullException(nameof(template));
}
int[] values = template.GetValues();
List<int> set = GetUnspecifiedValues(values);
List<int> unspecifiedIndices = GetUnspecifiedIndices(values);
foreach (int unspecifiedIndex in unspecifiedIndices)
{
int i = this.random.Next(0, set.Count);
values[unspecifiedIndex] = set[i];
set.RemoveAt(i);
}
if (!BoardValidator.IsSolvable(template.Width, template.Height, values))
{
int i = unspecifiedIndices[0];
int j = unspecifiedIndices[1];
if (values[i] == 0)
{
i = unspecifiedIndices[2];
}
else if (values[j] == 0)
{
j = unspecifiedIndices[2];
}
int temp = values[i];
values[i] = values[j];
values[j] = temp;
}
return new BoardState(template.Width, template.Height, values);
}
public BoardState Generate(BoardTemplate template, BoardGoal goal)
{
if (template == null)
{
throw new ArgumentNullException(nameof(template));
}
if (goal == null)
{
throw new ArgumentNullException(nameof(goal));
}
for (int i = 0; i < RetryCount; i++)
{
BoardState state = this.Generate(template);
if (!state.Satisfies(goal))
{
return state;
}
}
throw new BoardGenerationException("Failed to generate a board that doesn't satisfy the specified goal.");
}