private void _contentGrid_ManipulationStarted(object sender, ManipulationStartedRoutedEventArgs e)
{
if (e.PointerDeviceType != PointerDeviceType.Touch)
{
return;
}
if (manipulationStatus == ManipulationStatus.None)
{
if (PivotItem != null && FrozenColumns > 0)
{
var pt = e.Position;
pt = this.TransformToVisual(_columnHeaderPanel).TransformPoint(pt);
var fx = _columnHeaderPanel.Columns.GetFrozenSize();
// adjust for scroll position
var sp = _columnHeaderPanel.ScrollPosition;
if (pt.X < 0 || pt.X > fx) pt.X -= sp.X;
var column = _columnHeaderPanel.Columns.GetItemAt(pt.X);
if (FrozenColumns > column)
{
startingCrossSlideLeft = startingCrossSlideRight = true;
}
}
if (_header != null)
{
var pt = e.Position;
pt = this.TransformToVisual(_header).TransformPoint(pt);
var rect = new Rect(0, 0, _header.ActualWidth, _header.ActualHeight);
if (rect.Contains(pt))
{
if (PivotItem != null)
{
startingCrossSlideLeft = startingCrossSlideRight = true;
}
manipulationOnHeaderOrFooter = true;
}
}
if (_footer != null)
{
var pt = e.Position;
pt = this.TransformToVisual(_footer).TransformPoint(pt);
var rect = new Rect(0, 0, _footer.ActualWidth, _footer.ActualHeight);
if (rect.Contains(pt))
{
if (PivotItem != null)
{
startingCrossSlideLeft = startingCrossSlideRight = true;
}
manipulationOnHeaderOrFooter = true;
}
}
}
}
public static bool IsElementFullVisible(FrameworkElement element, FrameworkElement container)
{
if (element.Visibility == Visibility.Collapsed)
return false;
var elementSize = new Rect(0.0, 0.0, element.ActualWidth, element.ActualHeight);
Rect bounds = element.TransformToVisual(container).TransformBounds(elementSize);
var parentBounds = new Rect(0.0, 0.0, container.ActualWidth, container.ActualHeight);
return parentBounds.Contains(new Point(bounds.Left, bounds.Top)) && parentBounds.Contains(new Point(bounds.Right, bounds.Bottom));
}
/// <summary>
/// Core game method. Updates state of the game.
/// </summary>
public void Update()
{
_lastUpdated = DateTime.Now;
Twinkle(); // Stars always twinkle
if(!GameOver)
{
// Check if there is any invader ship. If not, create new wave
if(!_invaders.Any())
NextWave();
// Check if player is alive
if(!PlayerDying)
{
MoveInvaders();
// Move all shots
Rect playAreaRect = new Rect(new Point(0, 0), PlayAreaSize);
foreach (var shot in _playerShots)
{
shot.Move();
if (!playAreaRect.Contains(shot.Location))
_playerShots.Remove(shot);
OnShotMoved(shot, false);
}
foreach (var shot in _invaderShots)
{
shot.Move();
if (!playAreaRect.Contains(shot.Location))
_invaderShots.Remove(shot);
OnShotMoved(shot, false);
}
ReturnFire();
// Collisions check
// At first check for shots which struck into invader ship
//We are using ToList() to make collection copy. We're iterating through copy
// and we're using remove on the original collection. This prevents the occurrence
// of an exception.
foreach (Shot playerShot in _playerShots.ToList())
{
foreach (Invader invader in _invaders.ToList())
{
if (CheckForInvaderCollision(playerShot, invader))
{
_invaders.Remove(invader);
OnShipChanged(invader, true);
_playerShots.Remove(playerShot);
OnShotMoved(playerShot, true);
break;
}
}
}
// Check if any enemy shot struck player ship
foreach (Shot enemyShot in _invaderShots.ToList())
{
if (CheckForPlayerCollision(enemyShot))
{
_playerDied = DateTime.Now;
OnShipChanged(_player, true);
_invaderShots.Remove(enemyShot);
OnShotMoved(enemyShot, true);
break;
}
}
}
}
}
public static bool Intersects(Point p1, Point p2, Rect r)
{
return Intersects(p1, p2, new Point(r.X, r.Y), new Point(r.X + r.Width, r.Y)).HasValue ||
Intersects(p1, p2, new Point(r.X + r.Width, r.Y), new Point(r.X + r.Width, r.Y + r.Height)).HasValue ||
Intersects(p1, p2, new Point(r.X + r.Width, r.Y + r.Height), new Point(r.X, r.Y + r.Height)).HasValue ||
Intersects(p1, p2, new Point(r.X, r.Y + r.Height), new Point(r.X, r.Y)).HasValue ||
(r.Contains(p1) && r.Contains(p2));
}
//check if point is in shape
public virtual Boolean CheckIsSelected(Point point)
{
Rect rect = new Rect(TopLeftPoint, BottomRightPoint);
return rect.Contains(point);
}
protected override void OnPointerEntered(PointerRoutedEventArgs e)
{
base.OnPointerEntered(e);
double leftLimit = (ActualWidth / 2) - (YawGazJoystick.ActualWidth / 2);
double rightLimit = (ActualWidth / 2) + (YawGazJoystick.ActualWidth / 2);
double topLimit = YawGazJoystick.ActualHeight / 2;
double bottomLimit = ActualHeight - (YawGazJoystick.ActualWidth / 2);
if (e.Pointer.PointerDeviceType != Windows.Devices.Input.PointerDeviceType.Touch)
return;
Point pos = e.GetCurrentPoint(JoystickGrid).Position;
var joy = pos.X < (ActualWidth / 2) ? RollPitchJoystick : YawGazJoystick;
var bounds = new Rect(joy.ActualWidth / 2, joy.ActualHeight / 2, JoystickGrid.ActualWidth - joy.ActualWidth / 2, JoystickGrid.ActualHeight - joy.ActualHeight / 2);
if (!bounds.Contains(pos))
return;
joy.Margin = new Thickness(pos.X - joy.ActualWidth / 2, pos.Y - joy.ActualHeight / 2, 0, 0);
joy.VerticalAlignment = VerticalAlignment.Top;
joy.HorizontalAlignment = HorizontalAlignment.Left;
//if (location.Y > topLimit && location.Y < bottomLimit)
//{
// JoystickControl joystick = null;
// if (location.X < leftLimit)
// {
// joystick = RollPitchJoystick;
// }
// else if (location.X > rightLimit)
// {
// joystick = YawGazJoystick;
// //YawGazJoystick.VerticalAlignment = Windows.UI.Xaml.VerticalAlignment.Top;
// //YawGazJoystick.Margin = new Thickness(0, location.Y - joyPos.X, ActualWidth - location.X - joyPos.Y, 0);
// }
// if (joystick != null)
// {
// var joyPos = new Point(RollPitchJoystick.ActualWidth / 2, RollPitchJoystick.ActualHeight / 2);
// joystick.VerticalAlignment = Windows.UI.Xaml.VerticalAlignment.Top;
// joystick.Margin = new Thickness(location.X - joyPos.X, location.Y - joyPos.Y, 0, 0);
// }
//}
}
static void PointerMoved(object sender, PointerRoutedEventArgs e)
{
FrameworkElement uiElement = sender as FrameworkElement;
if (uiElement == null) return;
Point ptStart = GetStartPoint(uiElement);
Point pt = e.GetCurrentPoint(null).Position;
Rect itemRect = new Rect(ptStart.X, ptStart.Y, uiElement.ActualWidth, uiElement.ActualHeight);
Debug.WriteLine(itemRect.ToString());
if (itemRect.Contains(pt)) {
Debug.WriteLine("down:" + pt.ToString());
DisplayDownAnimation(uiElement);
}
else
{
Debug.WriteLine("up:"+pt.ToString());
DisplayUpAnimation(uiElement);
}
// DOESN'T work
//var elems = VisualTreeHelper.FindElementsInHostCoordinates(pt, uiElement);
//if (elems.Contains(uiElement))
}
protected override void OnPointerEntered(PointerRoutedEventArgs e)
{
base.OnPointerEntered(e);
if (e.Pointer.PointerDeviceType != Windows.Devices.Input.PointerDeviceType.Touch)
return;
Point pos = e.GetCurrentPoint(JoystickGrid).Position;
var joy = pos.X < (ActualWidth / 2) ? RollPitchJoystick : YawGazJoystick;
var bounds = new Rect(joy.ActualWidth / 2, joy.ActualHeight / 2, JoystickGrid.ActualWidth - joy.ActualWidth / 2, JoystickGrid.ActualHeight - 75 - joy.ActualHeight / 2);
if (!bounds.Contains(pos))
return;
joy.Margin = new Thickness(pos.X - joy.ActualWidth / 2, pos.Y - joy.ActualHeight / 2, 0, 0);
joy.VerticalAlignment = VerticalAlignment.Top;
joy.HorizontalAlignment = HorizontalAlignment.Left;
}