1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/caugrid.py	Thu Dec 30 14:22:05 2010 +0100
     1.3 @@ -0,0 +1,39 @@
     1.4 +class Grid(object):
     1.5 +
     1.6 +	def __init__(self):
     1.7 +		self.cells = {}
     1.8 +		self.minx = 0
     1.9 +		self.maxx = 0
    1.10 +		self.miny = 0
    1.11 +		self.maxy = 0
    1.12 +
    1.13 +	def set(self, pos, value=1):
    1.14 +		if not pos in self.cells or value != self.cells[pos]:
    1.15 +			self.cells[pos] = value
    1.16 +			self.update(pos)
    1.17 +		return self
    1.18 +
    1.19 +	def clear(self, pos):
    1.20 +		if pos in self.cells:
    1.21 +			del self.cells[pos]
    1.22 +			self.update(pos)
    1.23 +		return self
    1.24 +
    1.25 +	def update(self, (x, y)):
    1.26 +		self.minx = min(x, self.minx)
    1.27 +		self.maxx = max(x, self.maxx)
    1.28 +		self.miny = min(y, self.miny)
    1.29 +		self.maxy = max(y, self.maxy)
    1.30 +		return self
    1.31 +
    1.32 +	def width(self):
    1.33 +		return self.maxx - self.minx + 1
    1.34 +
    1.35 +	def height(self):
    1.36 +		return self.maxy - self.miny + 1
    1.37 +
    1.38 +	def __len__(self):
    1.39 +		return len(self.cells)
    1.40 +
    1.41 +	def __str__(self):
    1.42 +		pass