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Ball to Ball Collision - Detection and Handling
...e collision components by creating a unit vector pointing in the direction from one ball to the other, then taking the dot product with the velocity vectors of the balls. You can then plug these components into a 1D perfectly elastic collision equation.
Wikipedia has a pretty good summary of the w...
Embedding ads on Android app?
...inking that my users would be upset, but I have not received one complaint from over 500,000 active installations.
The only permission that you need to add for either ad SDK to work is the android.permission.INTERNET permission.
Admob is open for anyone above the age of 18 to use, just download ...
What is the difference between memmove and memcpy?
...ake the same assumptions.
For example, memcpy might always copy addresses from low to high. If the destination overlaps after the source, this means some addresses will be overwritten before copied. memmove would detect this and copy in the other direction - from high to low - in this case. However...
What is the easiest way to remove all packages installed by pip?
...you need to exclude those lines and remove the packages manually (elevated from the comments below):
pip freeze | grep -v "^-e" | xargs pip uninstall -y
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Install specific git commit with pip
...t://github.com/aladagemre/django-notification.git@cool-feature-branch
or from source bundle
$ pip install https://github.com/aladagemre/django-notification/archive/cool-feature-branch.tar.gz
tag
with git
$ pip install git+git://github.com/aladagemre/django-notification.git@v2.1.0
or from s...
Best practices to handle routes for STI subclasses in rails
... I had to set url explicitly in order for it to both render the from and saves properly. <%= form_for @child, :as => :child, url: @child.becomes(Parent)
– lulalala
May 28 '12 at 6:55
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Git pull results in extraneous “Merge branch” messages in commit log
...the pulled remote branch are rewritten. This can include published commits from other branches, e.g. with feature branches, which others may already have accessed before. As such, yes, rebasing without thinking about what you rebase is somewhat dangerous.
– poke
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Call Activity method from adapter
Is it possible to call method that is defined in Activity from ListAdapter ?
8 Answers
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How does lombok work?
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Great to hear from the source (+1). I admit, my statement about running was misleading. I meant Lombok can only run on Sun VMs, but the resulting code is of course platform neutral.
– Sean Patrick Floyd
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Bash if [ false ] ; returns true
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Moreover, if your true and false strings are coming from somewhere else, there's a risk that they could actually contain contents other than true or false, and you could get unexpected behavior up to and including arbitrary command execution.
– Charles Du...