def __setitem__(self,key,value):
"""
This wraps dict's __setitem__, ensuring that the key is an instance of
Coords. (You can pass in a regular 2-tuple and it will be converted.)
It also ensures the coords are within the bounds of the board.
"""
coords = Coords.make(key) # Make sure everything is a Coord
if not self.checkWithinBounds(coords):
raise Exception, "{0} out of bounds.".format(coords)
else:
dict.__setitem__(self,coords,value)
def displaySize(self):
return Coords.make(self.screen.rect.size)
def checkWithinBounds(self,coords):
"""Returns true if the given coords are within the board's bounds."""
trueCoords = Coords.make(coords)
withinXBounds = (self.width == None) or (trueCoords.x >= 0 and trueCoords.x < self.width)
withinYBounds = (self.height == None) or (trueCoords.y >= 0 and trueCoords.y < self.height)
return withinXBounds and withinYBounds
def __getitem__(self,key):
coords = Coords.make(key)
if not self.checkWithinBounds(coords):
raise Exception, "{0} out of bounds.".format(coords)
else:
return dict.__getitem__(self,coords)
