/// <summary>
/// This method moves to a new maze gridpoint indicated by the specified direction.
/// If no maze gridpoint is found in the direction specified, an exception is thrown.
/// </summary>
public MazeGridpoint ProceedToNewGridpoint(MazeGridpoint mazeGridpoint, DirectionEnum direction)
{
var nextCoordinate = mazeGridpoint.Position.MoveInDirection(direction);
var nextMazeGridpoint = MazeGridpoints[nextCoordinate];
return(nextMazeGridpoint);
}
/// <summary>
/// This method checks if moving to a new position in the maze will be inside
/// the boundaries of the maze, and therfore valid.
/// </summary>
public bool IsValidPositionInMaze(
MazeGridpoint currentMazeGridPoint,
DirectionEnum directionToMove)
{
var nextPotentialCoordinate = currentMazeGridPoint.Position.MoveInDirection(directionToMove);
var isValid = CheckIfCoordinateIsValid(nextPotentialCoordinate);
return(isValid);
}
/// <summary>
/// This method checks two things: 1) If moving to a new position in the maze will be inside
/// the boundaries of the maze, and therfore valid, 2) If moving to the specified position
/// in the maze would be back-tracking based on the last position supplied.
/// </summary>
public bool IsValidPositionInMazeAndNotBacktracking(
MazeGridpoint lastMazeGridPoint,
MazeGridpoint currentMazeGridPoint,
DirectionEnum directionToMove)
{
var nextPotentialCoordinate = currentMazeGridPoint.Position.MoveInDirection(directionToMove);
var isBacktracking = (lastMazeGridPoint.Position == nextPotentialCoordinate);
var isValid = CheckIfCoordinateIsValid(nextPotentialCoordinate);
return(isValid && !isBacktracking);
}
/// <summary>
/// Checks if a maze gridpoint is a dead-end or wall.
/// </summary>
public bool CheckIfAtDeadEnd(MazeGridpoint mazeGridpoint)
{
if (mazeGridpoint.IsFinishPoint)
{
return(false);
}
if (mazeGridpoint.IsStartPoint)
{
return(false);
}
if (mazeGridpoint.IsWall)
{
return(true);
}
if (mazeGridpoint.DirectionsAvailable.Count > 1)
{
return(false);
}
return(true);
}
/// <summary>
/// Checks if a maze gridpoint is a finish point of the maze.
/// </summary>
public bool CheckIfAtFinish(MazeGridpoint mazeGridpoint)
{
return(mazeGridpoint.IsFinishPoint);
}
