On 9/28/2010 10:22 AM, Roelof Wobben wrote:
Date: Tue, 28 Sep 2010 10:02:27 -0400
From: da...@ieee.org
To: rwob...@hotmail.com
CC: tutor@python.org
Subject: Re: [Tutor] question
On 2:59 PM, Roelof Wobben wrote:
Hello,
Im now studying this page :
http://openbookproject.net/thinkcs/python/english2e/ch16.html
But I don't get it why aces are now lower then deuces in the cmp function.
Roelof
Why would you be surprised that aces are lower than deuces? If aces are
represented by 1, and deuces by 2, then 1 is less than 2.
Notice that because self.suit is compared first, an ace of spades is
higher than a deuce of hearts. It's only within the same suit that an
ace is "less than" a deuce.
DaveA
Hello Dave,
In some games in the Netherlands Aces can have a value of 11 or 1 .
So if Aces are 11 then Deuces is lesser then Aces.
Can I say that the position of the list is a representation of the value.
Roelof
The class attribute was assigned as follows:
ranks = ["narf", "Ace", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "Jack", "Queen", "King"]
So "Ace" is at position 1. And if you want an Ace, you'd have to supply a 1 to
the constructor.
I would certainly agree that in many games this wouldn't be the desired case.
Some games specify aces higher than kings, some have no ordering among face
cards, some let the player choose.
If the Card class needed to cover all cases, then one might need to make the
__cmp__() method parameterizable, so that at different times, the cards might
sort differently.
But this is one implementation of the Card class, and hopefully it's
self-consistent in the course.
DaveA
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