Alex Hall wrote:
Hi again all,
More about classes. I am still looking into my battleship game, and I
will have several different craft. All craft have common attribs
(position, alive, and so on) but each craft may be a surface ship,
submarine, or airplane. All three are craft, but a submarine can be
submerged or not, which does not apply to a surface ship or a plane,
while a plane can be airborne or not, which is not applicable to the
other two. Is there any advantage to creating a craft class:
class craft():
#has attribs common to any and all craft
#end class
then doing something like:
class submarine(craft):
#sub-specific attribs
#end class
How would I create a submarine, and then get at the craft-level
attribs? Come to think of it, how would I pass anything to the craft
constructor (position and alive, for example) when creating a new
submarine object? Am I even doing this right to make submarine a
subclass of craft? Thanks.
Inside the __init__() method of Submarine, simply call the __init__()
method of Craft, with appropriate parameters.
As for getting at the attributes of the Craft parent class, from a
Submarine object, you simply reference the attributes as always. If
they're not overridden in Submarine, they'll be searched for in Craft.
DaveA
--
http://mail.python.org/mailman/listinfo/python-list
