Hi Steve,
Am So,17.08.2008 um 18:43 schrieb Steve Wart:
Hi Aaron,
That's always a good question to ask.
I'm porting a Smalltalk/OpenGL maze application I wrote a few years
ago to
Cocoa.
The maze is initialized by creating a 2D matrix of Room objects
which are
separated by Wall objects.
On Sun, Aug 17, 2008 at 12:43 PM, Steve Wart <[EMAIL PROTECTED]> wrote:
> Hi Aaron,
>
> That's always a good question to ask.
>
> I'm porting a Smalltalk/OpenGL maze application I wrote a few years ago to
> Cocoa.
>
> The maze is initialized by creating a 2D matrix of Room objects which are
> separ
On Sun, Aug 17, 2008 at 12:43 PM, Steve Wart <[EMAIL PROTECTED]> wrote:
> I go through the rooms in random order, pick a wall at random, and knock it
> down (also being careful to knock down the corresponding wall in any
> adjacent rooms). By knocking down a wall, two rooms become merged into one.
Hi Aaron,
That's always a good question to ask.
I'm porting a Smalltalk/OpenGL maze application I wrote a few years ago to
Cocoa.
The maze is initialized by creating a 2D matrix of Room objects which are
separated by Wall objects. Every room has an ordered collection of walls
which I've put into
hem to NSUInteger, thereby truncating off the decimal bits, and then
> XOR the result together:
>
> - (NSUInteger)hash { return (NSUInteger)p.x ^ (NSUInteger)p.y; }
>
> Note that this stops making much sense if you expect your points to be
> fractional values, and you want dif
ve a pair of floats. The simplest thing to do would be to cast
them to NSUInteger, thereby truncating off the decimal bits, and then
XOR the result together:
- (NSUInteger)hash { return (NSUInteger)p.x ^ (NSUInteger)p.y; }
Note that this stops making much sense if you expect your points to be
On Aug 16, 2008, at 1:57 PM, Steve Wart wrote:
What's the standard way of hashing non-object values in Cocoa?
Something like this ought to work: (warning - written in Mail,
untested, use at your own risk)
[[NSNumber numberWithUnsignedInteger:someNSUInteger] hash];
You can use NSValue to
Hi all,
I'm just getting started with Cocoa and I'm trying to implement hash and
isEqual: methods according to the recommendations in the coding guidelines.
To implement a hash method I would normally just hash the receiver's
instance variables together and xor the result, but this only works if
