public void AllCellsVisitedByPacManAreNotFilledWithDots()
{
var grid = new Grid(4, 8);
var originPosition = new Position(0, 0);
var positionNextToActual = new Position(1, 0);
grid.PlacePacManAt(originPosition);
grid.MovePacManTo(positionNextToActual);
Assert.NotEqual(Grid.FilledCell, grid.At(originPosition));
}
public bool Equals(Position other)
{
return X == other.X && Y == other.Y;
}
public static Position GetUp(Position position)
{
return new Position(position.X, position.Y - 1);
}
public static Position GetRight(Position position)
{
return new Position(position.X + 1, position.Y);
}
public static Position GetLeft(Position position)
{
return new Position(position.X - 1, position.Y);
}
private bool IsValidMove(Position position)
{
if (!_isPacManAtGrid) return false;
if (_wallsPositions.Contains(position)) return false;
return position.X >= 0
&& position.X < _width
&& position.Y >= 0
&& position.Y < _height;
}
public void PlaceWall(Position wallPosition)
{
_wallsPositions.Add(wallPosition);
}
public void PacManCantMoveIfItDoesNotExist()
{
var grid = new Grid(4, 8);
var somePosition = new Position(2, 1);
Assert.Throws<InvalidMoveException>(() => grid.MovePacManTo(somePosition));
}
public void MovePacManTo(Position position)
{
if (!IsValidMove(position))
{
throw new InvalidMoveException();
}
_pacManPosition = position;
_visitedCells.Add(position);
}
public string At(Position position)
{
if (position.Equals(_pacManPosition)) return PacMan;
if (_visitedCells.Contains(position))
return EmptyCell;
return FilledCell;
}
public static Position GetDown(Position position)
{
return new Position(position.X, position.Y + 1);
}
private static void AssertFilledWithDots(Grid grid, int width, int height)
{
for (var x = 0; x < width; x++)
{
for (var y = 0; y < height; y++)
{
var position = new Position(x, y);
Assert.Equal(Grid.FilledCell, grid.At(position));
}
}
}
public void WithPacmansHeadYouDontBreakThrough()
{
var grid = new Grid(4, 8);
var originPosition = new Position(0, 0);
var positionNextToActual = new Position(-1, 0);
grid.PlacePacManAt(originPosition);
Assert.Throws<InvalidMoveException>(() => grid.MovePacManTo(positionNextToActual));
}
public void PacmanMovesAfterTick(Game.Direction direction, int nextX, int nextY)
{
var grid = new Grid(4, 8);
var originPosition = new Position(0, 0);
var positionNextToActual = new Position(nextX, nextY);
grid.PlacePacManAt(originPosition);
var game = new Game(grid);
game.PacmanDirection = direction;
game.Tick();
Assert.Equal(Grid.PacMan, grid.At(positionNextToActual));
}
public void PacManCantMoveToWall()
{
var grid = new Grid(4, 8);
var positionWall = new Position(2, 0);
grid.PlaceWall(positionWall);
var originPosition = new Position(0, 0);
var positionNextToActual = new Position(2, 0);
grid.PlacePacManAt(originPosition);
Assert.Throws<InvalidMoveException>(() => grid.MovePacManTo(positionNextToActual));
}
public void PlacePacManAt(Position position)
{
_isPacManAtGrid = true;
MovePacManTo(position);
}
public void CellNearPacmanIsFilledWithDot()
{
var grid = new Grid(4, 8);
var originPosition = new Position(0, 0);
var positionNextToActual = new Position(1, 0);
grid.PlacePacManAt(originPosition);
Assert.Equal(Grid.FilledCell, grid.At(positionNextToActual));
}
public void CellWithPacmanIsNotFilledWithDot()
{
var grid = new Grid(4, 8);
var originPosition = new Position(0, 0);
grid.PlacePacManAt(originPosition);
Assert.NotEqual(Grid.FilledCell, grid.At(originPosition));
}
