public void BuildMaze(MazeSlot slot)
{
slot.VisitedByBuilder = true;
List <MazeSlot> neighbor = GetNeighbor(slot);
if (neighbor.Count == 0)
{
if (slotStack.Count == 0)
{
return;
}
BuildMaze(slotStack.Pop());
}
else
{
slotStack.Push(slot);
int nextPosition = random.Next(neighbor.Count);
MazeSlot next = neighbor[nextPosition];
slot.DestroyWall(next);
next.DestroyWall(slot);
BuildMaze(next);
}
}
public void DestroyWall(MazeSlot other)
{
WallPosition position = WallPosition.None;
if (X > other.X)
{
position = WallPosition.Left;
}
else if (X < other.X)
{
position = WallPosition.Rigth;
}
else if (Y > other.Y)
{
position = WallPosition.Down;
}
else if (Y < other.Y)
{
position = WallPosition.Up;
}
if (position != WallPosition.None)
{
DestroyedWalls.Add(position);
}
}
private void InitializeMaze()
{
for (int x = 0; x < Maze.GetLength(0); x++)
{
for (int y = 0; y < Maze.GetLength(1); y++)
{
Maze[x, y] = new MazeSlot(x, y);
}
}
}
public override bool Equals(object obj)
{
MazeSlot other = obj as MazeSlot;
if (other == null)
{
return(false);
}
return(X == other.X && Y == other.Y);
}
private static void SolveMaze(MazeSlot[,] maze)
{
try
{
MazeSolver solver = new MazeSolver(maze);
Stack <MazeSlot> solution = solver.Solve(maze[0, 0], maze[maze.GetLength(0) - 1, maze.GetLength(1) - 1]);
while (solution.Count > 0)
{
MazeSlot slot = solution.Pop();
maze[slot.X, slot.Y].SolutionPath = true;
}
}
catch (Exception)
{
Console.WriteLine();
Console.WriteLine("Não achei uma solução para esse labirinto");
}
}
private Stack <MazeSlot> Move(MazeSlot slot)
{
if (slot.Equals(end))
{
slotStack.Push(slot);
return(slotStack);
}
List <MazeSlot> moves = NextMoves(slot);
while (moves.Count > 0)
{
slotStack.Push(slot);
slot.VisitedBySolver = true;
slot = moves.First();
if (slot.Equals(end))
{
slotStack.Push(slot);
return(slotStack);
}
moves = NextMoves(slot);
if (moves.Count == 0)
{
slot.VisitedBySolver = true;
do
{
if (slotStack.Count == 0)
{
throw new Exception("Could not find a solution!");
}
slot = slotStack.Pop();
moves = NextMoves(slot);
}while (moves.Count == 0);
}
}
return(slotStack);
}
public List <MazeSlot> GetNeighbor(MazeSlot slot)
{
List <MazeSlot> result = new List <MazeSlot>(4);
if (slot.X - 1 >= 0 && !Maze[slot.X - 1, slot.Y].VisitedByBuilder)
{
result.Add(Maze[slot.X - 1, slot.Y]);
}
if (slot.X + 1 < Maze.GetLength(0) && !Maze[slot.X + 1, slot.Y].VisitedByBuilder)
{
result.Add(Maze[slot.X + 1, slot.Y]);
}
if (slot.Y - 1 >= 0 && !Maze[slot.X, slot.Y - 1].VisitedByBuilder)
{
result.Add(Maze[slot.X, slot.Y - 1]);
}
if (slot.Y + 1 < Maze.GetLength(1) && !Maze[slot.X, slot.Y + 1].VisitedByBuilder)
{
result.Add(Maze[slot.X, slot.Y + 1]);
}
return(result);
}
public List <MazeSlot> NextMoves(MazeSlot slot)
{
List <MazeSlot> result = new List <MazeSlot>(4);
if (slot.DestroyedWalls.Contains(WallPosition.Up) && !maze[slot.X, slot.Y + 1].VisitedBySolver)
{
result.Add(maze[slot.X, slot.Y + 1]);
}
if (slot.DestroyedWalls.Contains(WallPosition.Down) && !maze[slot.X, slot.Y - 1].VisitedBySolver)
{
result.Add(maze[slot.X, slot.Y - 1]);
}
if (slot.DestroyedWalls.Contains(WallPosition.Left) && !maze[slot.X - 1, slot.Y].VisitedBySolver)
{
result.Add(maze[slot.X - 1, slot.Y]);
}
if (slot.DestroyedWalls.Contains(WallPosition.Rigth) && !maze[slot.X + 1, slot.Y].VisitedBySolver)
{
result.Add(maze[slot.X + 1, slot.Y]);
}
return(result);
}
public Stack <MazeSlot> Solve(MazeSlot start, MazeSlot end)
{
this.end = end;
return(Move(start));
}
