def create_cells(self, rule):
cells = {}
for x in range(0, self.width, self.resolution):
for y in range(0, self.height, self.resolution):
cells[(x, y)] = SquareCell.create_initialized(
rule,
self.neighbourhood,
self.cell_state_class)
coordinates = (x + self.resolution / 2, y + self.resolution / 2)
cells[(x, y)].position = coordinates
cells[(x, y)].radius = self.resolution / 2
return cells
