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Ball to Ball Collision - Detection and Handling
...ers that have to be resolved before you get an accurate picture. Consider what happens if the ball hits a ball at the edge? The second ball hits the edge and immediately rebounds into the first ball. If you bang into a pile of balls in the corner you could have quite a few collisions that have to...
Django database query: How to get object by id?
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Class.objects.get(id=1)
This code was raising an ImportError exception. What was confusing me was that the code below executed fine and returned a result set as expected:
Class.objects.all()
Tail of the traceback for the get() method:
File "django/db/models/loading.py", line 197, in get_model...
Queue.Queue vs. collections.deque
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Well, what I want to do is make sure that no duplicates are added to the queue. Is this not something a queue could potentially support?
– miracle2k
Apr 4 '09 at 15:06
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Run PHP Task Asynchronously
I work on a somewhat large web application, and the backend is mostly in PHP. There are several places in the code where I need to complete some task, but I don't want to make the user wait for the result. For example, when creating a new account, I need to send them a welcome email. But when they h...
Convert int to ASCII and back in Python
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What about BASE58 encoding the URL? Like for example flickr does.
# note the missing lowercase L and the zero etc.
BASE58 = '123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ'
url = ''
while node_id >= 58:
d...
How to write string literals in python without having to escape them?
...nput_open.read()
print input_string
This will print the literal text of whatever is in the text file, even if it is;
' ''' """ “ \
Not fun or optimal, but can be useful, especially if you have 3 pages of code that would’ve needed character escaping.
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Does using final for variables in Java improve garbage collection?
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You should know that final allows the compiler to make assumptions about what to optimize. Inlining code and not including code known not to be reachable.
final boolean debug = false;
......
if (debug) {
System.out.println("DEBUG INFO!");
}
The println will not be included in the byte code...
How to select only the records with the highest date in LINQ
... This solution works fine if you were querying per account but does not do what OP stated, which is to get the most recent result for all records without providing an AccountId (in your case PlayerId)
– Maciej
May 3 '13 at 18:30
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Is there a way to make a link clickable in the OSX Terminal?
...gt;Test</a>" | lynx -use_mouse - stdin This opens lynx, this is not what i want, I want the output directly in my terminal.
– japetheape
Feb 26 '10 at 1:49
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How to create a private class method?
...ge of it) short of the mark
in this area. For instance the following does what I want but is clumsy,
class Frob
attr_reader :val1, :val2
Tolerance = 2 * Float::EPSILON
def initialize(val1, val2)
@val2 = val1
@val2 = val2
...
end
# Stuff that's likely ...