public bool IsCellOpen(GameCharacter character, Direction direction)
{
int x = character.X >> 4;
int y = character.Y >> 4;
switch (direction)
{
case Direction.Left: return character.CanEnterCell(_maze[y][x - 1]);
case Direction.Right: return character.CanEnterCell(_maze[y][x + 1]);
case Direction.Up: return character.CanEnterCell(_maze[y - 1][x]);
case Direction.Down: return character.CanEnterCell(_maze[y + 1][x]);
}
return false;
}
public Direction[] GetOpenDirections(GameCharacter character, Direction current)
{
int i = 0;
_openDirections[0] = Direction.Stop;
_openDirections[1] = Direction.Stop;
_openDirections[2] = Direction.Stop;
_openDirections[3] = Direction.Stop;
if (current != Direction.Right && IsCellOpen(character, Direction.Left)) _openDirections[i++] = Direction.Left;
if (current != Direction.Left && IsCellOpen(character, Direction.Right)) _openDirections[i++] = Direction.Right;
if (current != Direction.Down && IsCellOpen(character, Direction.Up)) _openDirections[i++] = Direction.Up;
if (current != Direction.Up && IsCellOpen(character, Direction.Down)) _openDirections[i++] = Direction.Down;
if (i == 0)
{
if (current == Direction.Right && IsCellOpen(character, Direction.Left)) _openDirections[i++] = Direction.Left;
else if (current == Direction.Left && IsCellOpen(character, Direction.Right)) _openDirections[i++] = Direction.Right;
else if (current == Direction.Down && IsCellOpen(character, Direction.Up)) _openDirections[i++] = Direction.Up;
else if (current == Direction.Up && IsCellOpen(character, Direction.Down)) _openDirections[i++] = Direction.Down;
}
return _openDirections;
}