/// <summary>
/// When the user cancels the main menu, ask if they want to exit the sample.
/// </summary>
protected override void OnCancel()
{
const string message = "Are you sure you want to exit Pickture?";
MessageBoxScreen confirmExitMessageBox = new MessageBoxScreen(message);
confirmExitMessageBox.Accepted += ConfirmExitMessageBoxAccepted;
ScreenManager.AddScreen(confirmExitMessageBox);
}
public override void HandleInput(InputState input)
{
if (input.MenuCancel)
{
MessageBoxScreen messageBox = new MessageBoxScreen(
"Are you sure you want to quit this game?\nYour progress will be lost");
messageBox.Accepted += QuitMessageBoxAccepted;
ScreenManager.AddScreen(messageBox);
}
// Do not handle controls while the camera is flipping
if (board.Camera.IsFlipping)
{
return;
}
// Some controls only apply when the puzzle is two sided
if (board.TwoSided)
{
// Handle flipping camera to other side of board
if (input.FlipCameraLeft)
{
board.Camera.Flip(Camera.FlipDirection.Left);
}
else if (input.FlipCameraRight)
{
board.Camera.Flip(Camera.FlipDirection.Right);
}
// Handle flipping the active chip
else if (input.FlipUp)
{
if (board.Camera.Side == Camera.BoardSide.Front)
{
ActiveChip.Flip(Chip.RevolveDirection.Up);
}
else
{
ActiveChip.Flip(Chip.RevolveDirection.Down);
}
}
else if (input.FlipDown)
{
if (board.Camera.Side == Camera.BoardSide.Front)
{
ActiveChip.Flip(Chip.RevolveDirection.Down);
}
else
{
ActiveChip.Flip(Chip.RevolveDirection.Up);
}
}
else if (input.FlipLeft)
{
ActiveChip.Flip(Chip.RevolveDirection.Left);
}
else if (input.FlipRight)
{
ActiveChip.Flip(Chip.RevolveDirection.Right);
}
}
// Handle selecting a new active chip
HandleChipSelection(input);
// Handle shifting
if (input.ShiftActiveChip && !board.IsShifting)
{
board.Shift(activeChipX, activeChipY);
if (board.IsShifting)
{
// When a shift occurs, the active chip moves with the shift
SetActiveChip(activeChipX + board.ShiftX,
activeChipY + board.ShiftY);
}
}
// Did any moves during this update result in the puzzle being sovled?
if (this.board.IsPuzzleComplete())
{
// Transition to the CompletedScreen
ExitScreen();
foreach (GameScreen screen in ScreenManager.GetScreens())
{
if (screen is BoardScreen)
{
screen.ExitScreen();
}
}
ScreenManager.AddScreen(new CompletedScreen(board.CurrentPictureSet));
}
}
/// <summary>
/// Construct a new instance of Pickture. This method will enforce that it is
/// only ever called once because the game class itself is a singleton.
/// </summary>
public Pickture()
{
// Enforce singleton
if (instance != null)
{
throw new InvalidOperationException(
"Only one instance of Pickture may be created.");
}
instance = this;
// Initalize graphics
graphics = new GraphicsDeviceManager(this);
graphics.MinimumVertexShaderProfile = ShaderProfile.VS_2_0;
graphics.MinimumPixelShaderProfile = ShaderProfile.PS_2_0;
#if XBOX360
// On Xbox360, always use the user's preferred resolution and multisampling
// The other approach is to always use the same resolution (typically
// 1920x1080). The hardware will automatically down scale and letterbox as
// needed. However, Pickture is already resolution independant for Windows
graphics.PreferredBackBufferWidth = Window.ClientBounds.Width;
graphics.PreferredBackBufferHeight = Window.ClientBounds.Height;
graphics.PreferMultiSampling = true;
graphics.PreparingDeviceSettings +=
new EventHandler <PreparingDeviceSettingsEventArgs>(
graphics_PreparingDeviceSettings);
#else
// On Windows, just use a small and simple starting size, but allow
// the user to resize the Window however they like
graphics.PreferredBackBufferWidth = 800;
graphics.PreferredBackBufferHeight = 600;
Window.AllowUserResizing = true;
graphics.IsFullScreen = false;
#endif
// Initalzie content
Content.RootDirectory = "Content";
// Initalize screen management
ScreenManager screenManager = new ScreenManager(this);
Components.Add(screenManager);
// Initalize picture database
PictureDatabase.Initialize();
// If enough pictures are available,
if (PictureDatabase.Count >= 2)
{
// start up the game
screenManager.AddScreen(new MainMenuScreen());
}
else
{
// Otherwise, show error and quit
MessageBoxScreen messageBox = new MessageBoxScreen(
"Unable to find enough pictures to play.", false);
messageBox.Accepted += new EventHandler <EventArgs>(messageBox_Accepted);
screenManager.AddScreen(messageBox);
}
}
