public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
IsMouseVisible = true;
// Allow users to resize the window, and handle the Projection Matrix on Resize
Window.Title = "Disentanglement";
Window.AllowUserResizing = true;
Window.ClientSizeChanged += OnClientSizeChanged;
_puzzleState = PuzzleParser.GetGordionCubePuzzle();
_initialState = _puzzleState;
foreach (var piece in _puzzleState.Pieces)
{
_pieceVisibility[piece.Piece.Name] = true;
}
_pieceKeyMapping[Keys.D1] = "Orange";
_pieceKeyMapping[Keys.D2] = "Blue";
_pieceKeyMapping[Keys.D3] = "Yellow";
_pieceKeyMapping[Keys.D4] = "Red";
_pieceKeyMapping[Keys.D5] = "Green";
_pieceKeyMapping[Keys.D6] = "Purple";
#if NETFX_CORE
Windows.System.Threading.ThreadPool.RunAsync(delegate { Solve(); });
#else
System.Threading.ThreadPool.QueueUserWorkItem(delegate { Solve(); });
#endif
}
public PuzzleMove(PuzzleState startingState, IEnumerable<PuzzlePiece> movingPieces, Point direction)
{
this.StartingState = startingState;
this.MovingPieces = movingPieces;
this.Direction = direction;
_movingDict = MovingPieces.ToDictionary(p => p);
}
public Solver(PuzzleState initialState)
{
//EnableDebugLog = true;
Stack = new Stack<SolverFrame>();
Push(initialState.Normalize(), null, null);
_visitedStates = new Dictionary<PuzzleState, SolverFrame>();
}
/// <summary>
/// This is called when the game should draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
PuzzleState currentState;
bool solved;
lock (_lockObject)
{
if (_showSolverProgress && !_solved && _solverState != null)
{
_puzzleState = _solverState;
}
currentState = _puzzleState;
solved = _solved;
}
if (solved)
{
graphics.GraphicsDevice.Clear(Color.CornflowerBlue);
}
else
{
graphics.GraphicsDevice.Clear(Color.Black);
}
//_spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.Opaque, SamplerState.LinearClamp, DepthStencilState.None, RasterizerState.CullNone);
//int buttonTop = GraphicsDevice.Viewport.Width - 80;
//_spriteBatch.DrawString(_spriteFont, "Prev", new Vector2(buttonTop, 0), Color.Black, -MathHelper.PiOver2, Vector2.Zero, 1f, SpriteEffects.None, 0);
//_spriteBatch.End();
GraphicsDevice.SetVertexBuffer(boxVB);
GraphicsDevice.Indices = boxIB;
//var min = ToVector(currentState.MinBounds);
//var max = ToVector(currentState.MaxBounds);
//var center = (max + min) / 2;
//modelPosition = -center;
foreach (var piece in currentState.Pieces)
{
if (!_pieceVisibility[piece.Piece.Name])
{
continue;
}
Vector3 pieceColor = new Vector3(0, 0, 0);
if (piece.Piece.Name == "Orange")
{
pieceColor = RGB(255, 140, 0);
}
else if (piece.Piece.Name == "Blue")
{
pieceColor = RGB(0, 0, 255);
}
else if (piece.Piece.Name == "Yellow")
{
pieceColor = RGB(255, 255, 0);
}
else if (piece.Piece.Name == "Red")
{
pieceColor = RGB(255, 0, 0);
}
else if (piece.Piece.Name == "Green")
{
pieceColor = RGB(0, 255, 0);
}
else if (piece.Piece.Name == "Purple")
{
pieceColor = RGB(160, 32, 240);
}
foreach (var point in piece.CurrentPoints)
{
Vector3 pointPosition = ToVector(point);
if (_puzzlePiecesMoving.Contains(piece.Piece))
{
pointPosition += ToVector(_puzzleAnimationDirection) * _animationPercent;
}
//effect.World = Matrix.CreateFromYawPitchRoll(rectangleAngle,
// rectangleAngle, rectangleAngle) * rectangleTransform;
effect.World = Matrix.CreateTranslation(pointPosition) *
Matrix.CreateTranslation(modelPosition) *
rotationMatrix;
#if WINDOWS_PHONE
Vector3 upViewVector = Vector3.Right;
#else
Vector3 upViewVector = Vector3.Up;
#endif
effect.View = Matrix.CreateLookAt(cameraPosition,
Vector3.Zero, upViewVector);
//effect.View = Matrix.CreateLookAt(cameraPosition,
// modelPosition, Vector3.Up);
//effect.Projection = Matrix.CreatePerspectiveFieldOfView(
// MathHelper.ToRadians(45.0f), aspectRatio,
// 1.0f, 10000.0f);
effect.AmbientLightColor = pieceColor * 0.2f;
//effect.DiffuseColor = new Vector3(.5f, 0, 0);
effect.LightingEnabled = true;
//if (solved)
{
effect.DirectionalLight0.Enabled = true;
effect.DirectionalLight1.Enabled = true;
effect.DirectionalLight2.Enabled = true;
}
//effect.DirectionalLight0.DiffuseColor = pieceColor * 0.8f;
//effect.DirectionalLight1.DiffuseColor = pieceColor * new Vector3(0.8f, 0.6f, 0.6f);
//effect.DirectionalLight2.DiffuseColor = pieceColor * new Vector3(0.6f, 0.8f, 0.8f);
effect.DirectionalLight0.DiffuseColor = pieceColor * 0.8f;
effect.DirectionalLight1.DiffuseColor = pieceColor * 0.8f;
effect.DirectionalLight2.DiffuseColor = pieceColor * 0.8f;
//effect.DirectionalLight0.Direction = Vector3.Down;
//effect.DirectionalLight1.Direction = Vector3.Normalize(Vector3.Right + Vector3.Up + Vector3.Forward);
//effect.DirectionalLight2.Direction = Vector3.Normalize(Vector3.Left + Vector3.Up + Vector3.Forward);
effect.DirectionalLight0.Direction = Vector3.Normalize(Vector3.Forward + Vector3.Left + Vector3.Down);
effect.DirectionalLight1.Direction = Vector3.Normalize(Vector3.Right + Vector3.Up);
effect.DirectionalLight2.Direction = Vector3.Normalize(Vector3.Left + Vector3.Down);
effect.CurrentTechnique.Passes[0].Apply();
GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, 24, 0, 12);
}
}
base.Draw(gameTime);
}
private Vector3 GetCenteringVector(PuzzleState state)
{
var min = ToVector(state.MinBounds);
var max = ToVector(state.MaxBounds);
var center = (max + min) / 2;
return -center;
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();
KeyboardState keyboard = Keyboard.GetState();
if (keyboard.IsKeyDown(Keys.Escape))
Exit();
if (keyboard.IsKeyDown(Keys.F11) && prevKeyboardState.IsKeyUp(Keys.F11))
IsFullScreen = !IsFullScreen;
//if (keyboard.IsKeyDown(Keys.A) && prevKeyboardState.IsKeyUp(Keys.A))
// isAnimating = !isAnimating;
float movement = (float)gameTime.ElapsedGameTime.TotalMilliseconds * 0.02f;
if (keyboard.IsKeyDown(Keys.PageUp))
{
cameraPosition = new Vector3(cameraPosition.X, cameraPosition.Y, cameraPosition.Z - movement);
}
if (keyboard.IsKeyDown(Keys.PageDown))
{
cameraPosition = new Vector3(cameraPosition.X, cameraPosition.Y, cameraPosition.Z + movement);
}
float rotation = (float)gameTime.ElapsedGameTime.TotalMilliseconds *
MathHelper.ToRadians(0.1f);
if (keyboard.IsKeyDown(Keys.Left))
{
rotationMatrix = rotationMatrix * Matrix.CreateRotationY(rotation);
}
if (keyboard.IsKeyDown(Keys.Right))
{
rotationMatrix = rotationMatrix * Matrix.CreateRotationY(-rotation);
}
if (keyboard.IsKeyDown(Keys.Up))
{
rotationMatrix = rotationMatrix * Matrix.CreateRotationX(rotation);
}
if (keyboard.IsKeyDown(Keys.Down))
{
rotationMatrix = rotationMatrix * Matrix.CreateRotationX(-rotation);
}
bool commandForward = false;
bool commandBack = false;
bool commandResetView = false;
#if WINDOWS_PHONE
TouchCollection touches = TouchPanel.GetState();
if (touches.Count > 0)
{
foreach (TouchLocation touch in touches)
{
if (touch.Position.X <= _buttonTop)
{
_rotationVelocity = Vector2.Zero;
}
}
}
while (TouchPanel.IsGestureAvailable)
{
float factor = 0.01f;
GestureSample gesture = TouchPanel.ReadGesture();
if (gesture.GestureType == GestureType.FreeDrag)
{
rotationMatrix = rotationMatrix *
Matrix.CreateRotationX(gesture.Delta.X * factor) *
Matrix.CreateRotationY(-gesture.Delta.Y * factor);
}
else if (gesture.GestureType == GestureType.Flick)
{
float seconds = (float)gameTime.ElapsedGameTime.TotalSeconds;
_rotationVelocity = new Vector2(gesture.Delta.X * factor, -gesture.Delta.Y * factor);
}
else if (gesture.GestureType == GestureType.Tap)
{
//Debug.WriteLine("Tap " + gesture.Position);
if (gesture.Position.X >= _buttonTop)
{
if (gesture.Position.Y <= GraphicsDevice.Viewport.Height / 3)
{
commandForward = true;
}
else if (gesture.Position.Y <= GraphicsDevice.Viewport.Height * 2 / 3)
{
commandResetView = true;
}
else
{
commandBack = true;
}
}
}
}
#endif
foreach (var kvp in _pieceKeyMapping)
{
if (keyboard.IsKeyDown(kvp.Key) && prevKeyboardState.IsKeyUp(kvp.Key))
{
_pieceVisibility[kvp.Value] = !_pieceVisibility[kvp.Value];
}
}
if (keyboard.IsKeyDown(Keys.R) && prevKeyboardState.IsKeyUp(Keys.R))
{
commandResetView = true;
}
if (keyboard.IsKeyDown(Keys.Space) && prevKeyboardState.IsKeyUp(Keys.Space))
{
commandForward = true;
}
if (keyboard.IsKeyDown(Keys.B) && prevKeyboardState.IsKeyUp(Keys.B))
{
commandBack = true;
}
if (keyboard.IsKeyDown(Keys.U) && prevKeyboardState.IsKeyUp(Keys.U))
{
lock (_lockObject)
{
if (_solved)
{
_puzzleState = _moves[_moveIndex].PuzzleState;
}
else
{
_puzzleState = _solverState;
}
}
}
if (commandResetView)
{
rotationMatrix = Matrix.Identity;
cameraPosition = new Vector3(0.0f, 0.0f, 30.0f);
_rotationVelocity = Vector2.Zero;
}
lock (_lockObject)
{
if (_solved)
{
if (commandForward)
{
if (isAnimating)
{
EndAnimation();
}
if (_moveIndex < _moves.Length - 1)
{
var move = _moves[_moveIndex + 1].BestSolutionPrevMove;
if (move.IsRemoval)
{
_moveIndex++;
_puzzleState = _moves[_moveIndex].PuzzleState;
}
else
{
SetupAnimation(move, gameTime.TotalGameTime, _moveIndex + 1);
}
}
}
if (commandBack)
{
if (isAnimating)
{
EndAnimation();
}
if (_moveIndex > 0)
{
int newMoveIndex = _moveIndex - 1;
var move = _moves[_moveIndex].BestSolutionPrevMove;
if (move.IsRemoval)
{
_moveIndex--;
_puzzleState = _moves[_moveIndex].PuzzleState;
}
else
{
var moveToReverse = move;
PuzzleMove reverseMove = new PuzzleMove(moveToReverse.GetEndingState().Normalize(), moveToReverse.MovingPieces, moveToReverse.Direction.Negate());
SetupAnimation(reverseMove, gameTime.TotalGameTime, newMoveIndex);
}
}
}
}
else
{
if (commandForward)
{
_showSolverProgress = !_showSolverProgress;
}
if (commandBack)
{
_showSolverProgress = false;
_puzzleState = _initialState;
}
}
}
if (_rotationVelocity != Vector2.Zero)
{
rotationMatrix = rotationMatrix *
Matrix.CreateRotationX(_rotationVelocity.X * (float)gameTime.ElapsedGameTime.TotalSeconds) *
Matrix.CreateRotationY(_rotationVelocity.Y * (float)gameTime.ElapsedGameTime.TotalSeconds);
float friction = 0.03f;
_rotationVelocity *= 1f - (friction - (float)gameTime.ElapsedGameTime.TotalSeconds);
}
if (isAnimating)
{
if (gameTime.TotalGameTime >= _animationEnd)
{
EndAnimation();
}
else
{
TimeSpan animationElapsed = gameTime.TotalGameTime - _animationStart;
_animationPercent = (float)(animationElapsed.TotalMilliseconds / _animationLength.TotalMilliseconds);
modelPosition = _animationStartModelPosition + (_animationEndModelPosition - _animationStartModelPosition) * _animationPercent;
}
}
else
{
lock (_lockObject)
{
modelPosition = GetCenteringVector(_puzzleState);
}
}
prevKeyboardState = keyboard;
base.Update(gameTime);
}
private void EndAnimation()
{
isAnimating = false;
_animationPercent = 0;
_puzzleAnimationDirection = Point.Zero;
_puzzlePiecesMoving = Enumerable.Empty<PuzzlePiece>();
_moveIndex = _animationEndMoveIndex;
_puzzleState = _moves[_moveIndex].PuzzleState;
modelPosition = GetCenteringVector(_puzzleState);
}
private void Solve()
{
var initialState = _puzzleState;
var solver = new Solver(initialState);
while (!solver.Done)
{
solver.Step();
lock (_lockObject)
{
_solverState = solver.CurrentState;
}
}
lock (_lockObject)
{
_moves = solver.GetMoveSequence();
Console.WriteLine("Moves: " + _moves.Length);
_moveIndex = 0;
_puzzleState = _moves[_moveIndex].PuzzleState;
_solved = true;
}
}
public bool Equals(PuzzleState other)
{
if (other == null)
{
return false;
}
if (Pieces.Count() != other.Pieces.Count())
{
return false;
}
if (Pieces.Select(p => p.Piece).Except(other.Pieces.Select(p => p.Piece)).Any())
{
return false;
}
foreach (var piece in Pieces)
{
if (other.GetPiecePosition(piece.Piece) != piece)
{
return false;
}
}
return true;
}
private void Push(PuzzleState newState, PuzzleMove move, SolverFrame prevFrame)
{
SolverFrame newFrame = new SolverFrame();
newFrame.PuzzleState = newState;
newFrame.PrevFame = prevFrame;
newFrame.BestSolutionPrevFrame = prevFrame;
newFrame.BestSolutionPrevMove = move;
newFrame.ChildFrames = new Dictionary<SolverFrame, object>();
newFrame.CalculateSolutionDepth();
var possibleMoves = newFrame.PuzzleState.GetLegalMoves();
WriteLine("Possible moves:");
foreach (var possible in possibleMoves)
{
WriteLine("\t" + possible.ToString());
}
newFrame.PossibleMoves = new Queue<PuzzleMove>(possibleMoves);
Stack.Push(newFrame);
}
public PuzzleMove(PuzzleState startingState, PuzzlePiece movingPiece, Point direction)
: this(startingState, new[] { movingPiece }, direction)
{
}
public PuzzleMove(PuzzleState startingState, PuzzlePiece movingPiece, Point direction, bool isRemoval)
: this(startingState, movingPiece, direction)
{
this.IsRemoval = isRemoval;
}