// Drop a bomb.
private void bombTimer_Tick(object sender, EventArgs e)
{
// Perform an "adjustment" when needed.
if ((DateTime.Now.Subtract(lastAdjustmentTime).TotalSeconds >
secondsBetweenAdjustments))
{
lastAdjustmentTime = DateTime.Now;
secondsBetweenBombs -= secondsBetweenBombsReduction;
secondsToFall -= secondsToFallReduction;
// (Technically, you should check for 0 or negative values.
// However, in practice these won't occur because the game will
// always end first.)
// Set the timer to drop the next bomb at the appropriate time.
bombTimer.Interval = TimeSpan.FromSeconds(secondsBetweenBombs);
// Update the status message.
lblRate.Text = String.Format("A bomb is released every {0} seconds.",
secondsBetweenBombs);
lblSpeed.Text = String.Format("Each bomb takes {0} seconds to fall.",
secondsToFall);
}
// Create the bomb.
Bomb bomb = new Bomb();
bomb.IsFalling = true;
// Position the bomb.
Random random = new Random();
bomb.SetValue(Canvas.LeftProperty,
(double)(random.Next(0, (int)(canvasBackground.ActualWidth - 50))));
bomb.SetValue(Canvas.TopProperty, -100.0);
// Attach mouse click event (for defusing the bomb).
bomb.MouseLeftButtonDown += bomb_MouseLeftButtonDown;
// Create the animation for the falling bomb.
Storyboard storyboard = new Storyboard();
DoubleAnimation fallAnimation = new DoubleAnimation();
fallAnimation.To = canvasBackground.ActualHeight;
fallAnimation.Duration = TimeSpan.FromSeconds(secondsToFall);
Storyboard.SetTarget(fallAnimation, bomb);
Storyboard.SetTargetProperty(fallAnimation, new PropertyPath("(Canvas.Top)"));
storyboard.Children.Add(fallAnimation);
// Create the animation for the bomb "wiggle."
DoubleAnimation wiggleAnimation = new DoubleAnimation();
wiggleAnimation.To = 30;
wiggleAnimation.Duration = TimeSpan.FromSeconds(0.2);
wiggleAnimation.RepeatBehavior = RepeatBehavior.Forever;
wiggleAnimation.AutoReverse = true;
Storyboard.SetTarget(wiggleAnimation, ((TransformGroup)bomb.RenderTransform).Children[0]);
Storyboard.SetTargetProperty(wiggleAnimation, new PropertyPath("Angle"));
storyboard.Children.Add(wiggleAnimation);
// Add the bomb to the Canvas.
canvasBackground.Children.Add(bomb);
// Add the storyboard to the tracking collection.
storyboards.Add(bomb, storyboard);
// Configure and start the storyboard.
storyboard.Duration = fallAnimation.Duration;
storyboard.Completed += storyboard_Completed;
storyboard.Begin();
}
// Drop a bomb.
private void bombTimer_Tick(object sender, EventArgs e)
{
// Perform an "adjustment" when needed.
if ((DateTime.Now.Subtract(lastAdjustmentTime).TotalSeconds >
secondsBetweenAdjustments))
{
lastAdjustmentTime = DateTime.Now;
secondsBetweenBombs -= secondsBetweenBombsReduction;
secondsToFall -= secondsToFallReduction;
// (Technically, you should check for 0 or negative values.
// However, in practice these won't occur because the game will
// always end first.)
// Set the timer to drop the next bomb at the appropriate time.
bombTimer.Interval = TimeSpan.FromSeconds(secondsBetweenBombs);
// Update the status message.
lblRate.Text = String.Format("A bomb is released every {0} seconds.",
secondsBetweenBombs);
lblSpeed.Text = String.Format("Each bomb takes {0} seconds to fall.",
secondsToFall);
}
// Create the bomb.
Bomb bomb = new Bomb();
bomb.IsFalling = true;
// Position the bomb.
Random random = new Random();
bomb.SetValue(Canvas.LeftProperty,
(double)(random.Next(0, (int)(canvasBackground.ActualWidth - 50))));
bomb.SetValue(Canvas.TopProperty, -100.0);
// Attach mouse click event (for defusing the bomb).
bomb.MouseLeftButtonDown += bomb_MouseLeftButtonDown;
// Create the animation for the falling bomb.
Storyboard storyboard = new Storyboard();
DoubleAnimation fallAnimation = new DoubleAnimation();
fallAnimation.To = canvasBackground.ActualHeight;
fallAnimation.Duration = TimeSpan.FromSeconds(secondsToFall);
Storyboard.SetTarget(fallAnimation, bomb);
Storyboard.SetTargetProperty(fallAnimation, new PropertyPath("(Canvas.Top)"));
storyboard.Children.Add(fallAnimation);
// Create the animation for the bomb "wiggle."
DoubleAnimation wiggleAnimation = new DoubleAnimation();
wiggleAnimation.To = 30;
wiggleAnimation.Duration = TimeSpan.FromSeconds(0.2);
wiggleAnimation.RepeatBehavior = RepeatBehavior.Forever;
wiggleAnimation.AutoReverse = true;
Storyboard.SetTarget(wiggleAnimation, ((TransformGroup)bomb.RenderTransform).Children[0]);
Storyboard.SetTargetProperty(wiggleAnimation, new PropertyPath("Angle"));
storyboard.Children.Add(wiggleAnimation);
// Add the bomb to the Canvas.
canvasBackground.Children.Add(bomb);
// Add the storyboard to the tracking collection.
storyboards.Add(bomb, storyboard);
// Configure and start the storyboard.
storyboard.Duration = fallAnimation.Duration;
storyboard.Completed += storyboard_Completed;
storyboard.Begin();
}