def traverse(self, point, vector, include_empty=False):
"""
Returns all cells starting at point and going in vector
direction, until the edge of the grid is reached.
"""
cells = []
vector = Point.from_vector(vector)
while self.is_sane(point):
cell = self.get_cell(point)
if cell or include_empty:
cells.append(point)
point += vector
return cells
def neighbors(self, point, include_empty=False):
"""
Returns all cells that are adjacent neighbors of the value of
point, going from left to right, top to bottom, skipping the
cell of point itself.
"""
cells = []
for vector in Point.vectors:
if vector == Point.Center:
continue
np = point + Point.from_vector(vector)
if self.is_sane(np):
cell = self.get_cell(np, include_empty)
if cell or include_empty:
cells.append(cell)
return cells
