public Missile(Vector2 location, Point to, float speed, bool friendly, Color color, bool branched)
{
this.position = location;
this.to = to;
this.speed = speed;
this.trail = null;
this.color = color;
this.friendly = friendly;
this.branched = branched;
if (friendly)
{
this.crosshair = new TargetCrosshair(new Vector2(to.X, to.Y));
}
else
{
this.crosshair = new TargetCrosshair(new Vector2(-1000, -1000));
}
double direction = Math.Atan2(to.X - location.X, to.Y - location.Y);
speedVector = new Vector2((float)Math.Sin(direction) * speed, (float)Math.Cos(direction) * speed);
}
private void EnemyMissile_Loaded(object sender, RoutedEventArgs e)
{
var targets = from item in ((Canvas)Parent).Children.OfType <ITargetable>()
where item.IsDestroyed == false
select item;
var target = targets.Random();
this.Target = target;
trail = new Trail(From, Target.TargetPosition, Speed, Colors.Orange, Colors.OrangeRed);
trail.Moving += pos => Position = pos;
trail.Completed += TargetReached;
var missile = new Image();
missile.Source = (ImageSource)FindResource("Missile");
var matrix = new Matrix();
matrix.RotateAt(180 - From.AngleTo(Target.TargetPosition) * 180.0 / Math.PI, missile.Source.Width / 2, 0);
matrix.Translate(From.X - missile.Source.Width / 2, From.Y);
matrix.TranslatePrepend(0, -missile.Source.Height / 2);
missile.RenderTransform = new MatrixTransform(matrix);
trail.Moving += pos =>
{
var matrix = new Matrix();
matrix.RotateAt(180 - From.AngleTo(Target.TargetPosition) * 180.0 / Math.PI, missile.Source.Width / 2, 0);
matrix.Translate(pos.X - missile.Source.Width / 2, pos.Y);
matrix.TranslatePrepend(0, -missile.Source.Height / 2);
missile.RenderTransform = new MatrixTransform(matrix);
};
Canvas.SetZIndex(trail, -1);
Add(missile);
AddToParent(trail);
}
public Trail(Vector2 position, Trail next)
{
this.position = position;
this.next = next;
}