private void ScreenFlash_Loaded(object sender, RoutedEventArgs e)
{
var grid = Parent as Panel;
while (grid is not Grid)
{
grid = (Panel)grid.Parent;
}
var rect = new Rectangle();
rect.Fill = new SolidColorBrush(Colors.White);
rect.Opacity = strength;
rect.IsHitTestVisible = false;
Panel.SetZIndex(rect, 1);
grid.Children.Add(rect);
Add(Lerp.Time(strength, 0, Duration, t => rect.Opacity = t).Then(() =>
{
grid.Children.Remove(rect);
OnCompleted();
Destroy();
}));
}
public UserControl Overlay(UserControl screen)
{
screen.Opacity = 0;
Add(Lerp.Time(0, 1, TRANSITION_DURATION, t => screen.Opacity = t));
Add(screen);
return(screen);
}
public Trail(Vector from, Vector to, double speed, Color color1, Color color2)
{
var trailVector = (to - from).Normalized() * TRAIL_SIZE;
color1.A = 0;
var brush = new LinearGradientBrush(color1, color2, from.ToPoint(), to.ToPoint());
brush.MappingMode = BrushMappingMode.Absolute;
var line = new Line();
line.Stroke = brush;
line.StrokeThickness = 2;
line.StrokeStartLineCap = PenLineCap.Round;
line.StrokeEndLineCap = PenLineCap.Round;
line.X1 = from.X;
line.Y1 = from.Y;
line.X2 = from.X;
line.Y2 = from.Y;
position = Lerp.Speed(from, to, speed, p =>
{
line.X2 = p.X;
line.Y2 = p.Y;
Moving?.Invoke(p);
});
var brushPosition = Lerp.Speed(from, to + trailVector, speed, p =>
{
brush.StartPoint = (p - trailVector).ToPoint();
brush.EndPoint = p;
});
position.Completed += () =>
{
// Destination reached
Completed?.Invoke();
};
brushPosition.Completed += () =>
{
// Trail faded completely
Faded?.Invoke();
this.Destroy();
};
Add(position);
Add(brushPosition);
Add(line);
}
private void ScreenShake_Loaded(object sender, RoutedEventArgs e)
{
var parent = Parent as Panel;
Add(Lerp.Time(strength, 0, duration, t =>
{
Matrix matrix = parent.RenderTransform.Value;
matrix.TranslatePrepend(-shakeOffset.X, -shakeOffset.Y);
shakeOffset = new Vector(Random(-1, 1), Random(-1, 1)) * (double)t;
matrix.TranslatePrepend(shakeOffset.X, shakeOffset.Y);
parent.RenderTransform = new MatrixTransform(matrix);
}).Then(() =>
{
OnCompleted();
Destroy();
}));
}
public UserControl Switch(UserControl screen)
{
var lastScreen = CurrentScreen;
CurrentScreen = screen;
screen.Opacity = 0;
var animation =
Lerp.Time(0, 1, TRANSITION_DURATION, t => screen.Opacity = t) *
Lerp.Time(1, 0, TRANSITION_DURATION, t => lastScreen.Opacity = t) +
(() => Remove(lastScreen));
Add(screen);
Add(animation);
InvalidateMeasure();
return(screen);
}
public event Action <Vector, double> Payload; //is passed position and radius
public Explosion(Vector position, double radius, double duration)
{
circle = new Ellipse();
circle.Fill = new SolidColorBrush(Colors.White);
Position = position;
var animation =
// Expand
Lerp.Time(0, radius, duration, r =>
{
Radius = r;
circle.Width = r * 2;
circle.Height = r * 2;
Canvas.SetLeft(circle, position.X - r + Random(-1, 1) * SHAKE_FACTOR);
Canvas.SetTop(circle, position.Y - r + Random(-1, 1) * SHAKE_FACTOR);
Exploding?.Invoke(Position, Radius);
}, Lerp.CubeRoot)
// Contract
+ Lerp.Time(radius, 0, duration, r =>
{
Radius = r;
circle.Width = r * 2;
circle.Height = r * 2;
Canvas.SetLeft(circle, position.X - r + Random(-1, 1) * SHAKE_FACTOR);
Canvas.SetTop(circle, position.Y - r + Random(-1, 1) * SHAKE_FACTOR);
Exploding?.Invoke(Position, Radius);
})
// Fade
* Lerp.Time(1, 0, duration + FADE_DURATION, o => circle.Opacity = o)
// Destroy
+ (() => this.Destroy());
Add(animation);
Add(circle);
AddToParent(new ScreenFlash(0.1, 0.5));
}
public void CloseOverlay(UserControl screen)
{
Add(Lerp.Time(1, 0, TRANSITION_DURATION, t => screen.Opacity = t).Then(() => Remove(screen)));
}