// Called when a tile is left clicked in fill mode
private void fillTilePressed(Image tile, MouseButtonEventArgs e)
{
// If the selected image has not been created yet create it
if (fillSelectedImage == null)
{
// Draw a box around the current selection
fillSelectedImage = new Image();
fillSelectedImage.Source = selectImage;
Grid.SetColumn(fillSelectedImage, Grid.GetColumn(tile));
Grid.SetRow(fillSelectedImage, Grid.GetRow(tile));
fillSelectedImage.Width = tileSize;
fillSelectedImage.Height = tileSize;
mazeGrid.Children.Add(fillSelectedImage);
fillSelectedImage.Visibility = Visibility.Hidden;
}
// Check which point is being selected
if (fillSelectedImage.Visibility == Visibility.Hidden)
{
// Draw the box around the first selection
Grid.SetColumn(fillSelectedImage, Grid.GetColumn(tile));
Grid.SetRow(fillSelectedImage, Grid.GetRow(tile));
fillSelectedImage.Width = tileSize;
fillSelectedImage.Height = tileSize;
fillSelectedImage.Visibility = Visibility.Visible;
}
else
{
// Get the parameters of the whole selection, hide the old image, and set fill mode off
int x1 = Math.Min(Grid.GetColumn(fillSelectedImage), Grid.GetColumn(tile)),
y1 = Math.Min(Grid.GetRow(fillSelectedImage), Grid.GetRow(tile)),
x2 = Math.Max(Grid.GetColumn(fillSelectedImage), Grid.GetColumn(tile)) + 1,
y2 = Math.Max(Grid.GetRow(fillSelectedImage), Grid.GetRow(tile)) + 1;
clearMode();
// Fill the selection with walls or floors depending on the mouse button clicked
for (int x = x1; x < x2; x++)
{
for (int y = y1; y < y2; y++)
{
// Create commands only of the tiles that are going to be changed
if (tiles[x][y] != (e.RightButton == MouseButtonState.Pressed))
{
InvertableCommand command = new ChangeTileCommand(x, y, e.RightButton == MouseButtonState.Pressed, setTile);
currentCommands.Push(command);
command.Execute();
}
}
}
// Add the commands to the undo stack
storeCurrentCommands();
}
}
// Detects when the user presses on the grid of the maze
private void tilePressed(object sender, MouseEventArgs e)
{
// If Shift click is pressed start fill mode
if (e is MouseButtonEventArgs && (Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift)))
{
Mouse.OverrideCursor = Cursors.Cross;
fillMode = true;
}
// If Alt click is pressed set exit using a command
if (Keyboard.IsKeyDown(Key.LeftAlt) || Keyboard.IsKeyDown(Key.RightAlt))
{
if (e is MouseButtonEventArgs)
{
InvertableCommand command = new EntranceCommand(Grid.GetColumn(entranceImage), Grid.GetRow(entranceImage), Grid.GetColumn((Image)sender), Grid.GetRow((Image)sender), changeEntrance);
currentCommands.Push(command);
command.Execute();
}
}
// If Crtl click is pressed set exit using a command
else if (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl))
{
if (e is MouseButtonEventArgs)
{
InvertableCommand command = new EntranceCommand(Grid.GetColumn(exitImage), Grid.GetRow(exitImage), Grid.GetColumn((Image)sender), Grid.GetRow((Image)sender), changeExit);
currentCommands.Push(command);
command.Execute();
}
}
// Check if fill mode or exit mode is on and mouse button was clicked
else if (fillMode && e is MouseButtonEventArgs)
fillTilePressed((Image)sender, (MouseButtonEventArgs)e);
else if (entranceMode && e is MouseButtonEventArgs)
{
InvertableCommand command = new EntranceCommand(Grid.GetColumn(entranceImage), Grid.GetRow(entranceImage), Grid.GetColumn((Image)sender), Grid.GetRow((Image)sender), changeEntrance);
currentCommands.Push(command);
command.Execute();
}
else if (exitMode && e is MouseButtonEventArgs)
{
InvertableCommand command = new EntranceCommand(Grid.GetColumn(exitImage), Grid.GetRow(exitImage), Grid.GetColumn((Image)sender), Grid.GetRow((Image)sender), changeExit);
currentCommands.Push(command);
command.Execute();
}
else
{
// Change the tile of the currently selected tile
if (e.RightButton == MouseButtonState.Pressed && tiles[Grid.GetColumn((Image)sender)][Grid.GetRow((Image)sender)] != true)
{
InvertableCommand command = new ChangeTileCommand(Grid.GetColumn((Image)sender), Grid.GetRow((Image)sender), true, setTile);
currentCommands.Push(command);
command.Execute();
}
else if (e.LeftButton == MouseButtonState.Pressed && tiles[Grid.GetColumn((Image)sender)][Grid.GetRow((Image)sender)] != false)
{
InvertableCommand command = new ChangeTileCommand(Grid.GetColumn((Image)sender), Grid.GetRow((Image)sender), false, setTile);
currentCommands.Push(command);
command.Execute();
}
}
}