1.1 --- a/caumat.py	Thu Dec 30 14:22:05 2010 +0100
     1.2 +++ b/caumat.py	Thu Dec 30 14:36:25 2010 +0100
     1.3 @@ -55,12 +55,14 @@
     1.4  		return grid
     1.5  
     1.6  	def grow(self, grid, (x, y)):
     1.7 -		neighbours = [(x-1, y), (x, y+1), (x+1, y), (x, y-1)]
     1.8 +		n1 = [(x-1, y), (x, y+1), (x+1, y), (x, y-1)]
     1.9 +		n2 = [(x+1, y+1), (x+1, y-1), (x-1, y-1), (x-1, y+1)]
    1.10 +		neighbours = random.choice((n1, n1, n2))
    1.11  		neighbours = [n for n in neighbours if n not in grid.cells]
    1.12 -		try:
    1.13 +		if len(neighbours):
    1.14  			pos = random.choice(neighbours)	
    1.15  			value = 4
    1.16 -		except IndexError:
    1.17 +		else:
    1.18  			pos = (x, y)
    1.19  			value = grid.cells[pos]
    1.20  		return pos, value