FLAT | A 2D rigid body physics engine | Game Engine library
kandi X-RAY | FLAT Summary
kandi X-RAY | FLAT Summary
A 2D rigid body physics engine written from scratch in C++.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of FLAT
FLAT Key Features
FLAT Examples and Code Snippets
Community Discussions
Trending Discussions on FLAT
QUESTION
I am writing a model Series class (kinda like the one in pandas) - and it should be both Positional and Associative.
...ANSWER
Answered 2022-Mar-31 at 13:17First, an MRE with an emphasis on the M1:
QUESTION
I am getting a
...ANSWER
Answered 2022-Mar-18 at 20:51std::lower_bound
takes a Cpp17ForwardIterator, which must also be a Cpp17InputIterator. The Cpp17InputIterator requirements include:
*a
reference
, convertible to T
Here, a
is a "value of type X
or const X
", so MSVC is justified in requiring a const-qualified unary indirection operator; the "or" means that the code using the iterator can use either, and the author of the iterator has to support both. (Note that Cpp17InputIterator differs from Cpp17OutputIterator, where the required operation is *r = o
, with r
a non-const reference, X&
.)
So your operator*
should have const
qualification, and return a reference; specifically, a reference to T
or const T
(this is a Cpp17ForwardIterator requirement). You can satisfy this straightforwardly with using reference = const T&
and by making cur_
and cur_valid_
mutable
.
The use of mutable
here is entirely legitimate; since operator*() const
is idempotent, it is "logically const" and the modifications to the data members are non-observable.
QUESTION
If I compile this code with GCC or Clang and enable -O2
optimizations, I still get some global object initialization. Is it even possible for any code to reach these variables?
ANSWER
Answered 2022-Mar-18 at 06:44Compiling that code with short string optimization (SSO) may be an equivalent of taking address of std::string
's member variable. Constructor have to analyze string length at compile time and choose if it can fit into internal storage of std::string
object or it have to allocate memory dynamically but then find that it never was read so allocation code can be optimized out.
Lack of optimization in this case might be an optimization flaw limited to such simple outlying examples like this one:
QUESTION
Is there a way to put text along a density line, or for that matter, any path, in ggplot2? By that, I mean either once as a label, in this style of xkcd: 1835, 1950 (middle panel), 1392, or 2234 (middle panel). Alternatively, is there a way to have the line be repeating text, such as this xkcd #930 ? My apologies for all the xkcd, I'm not sure what these styles are called, and it's the only place I can think of that I've seen this before to differentiate areas in this way.
Note: I'm not talking about the hand-drawn xkcd style, nor putting flat labels at the top
I know I can place a straight/flat piece of text, such as via annotate
or geom_text
, but I'm curious about bending such text so it appears to be along the curve of the data.
I'm also curious if there is a name for this style of text-along-line?
Example ggplot2 graph using annotate(...)
:
Above example graph modified with curved text in Inkscape:
Edit: Here's the data for the first two trial runs in March and April, as requested:
...ANSWER
Answered 2021-Nov-08 at 11:31Great question. I have often thought about this. I don't know of any packages that allow it natively, but it's not terribly difficult to do it yourself, since geom_text
accepts angle
as an aesthetic mapping.
Say we have the following plot:
QUESTION
[Editing this question completely] Thank you , for those who helped in building the Periodic Table successfully . As I completed it , I tried to link it with another of my project E-Search
, which acts like Google and fetches answers , except that it will fetch me the data of the Periodic Table .
But , I got a problem - not with the searching but with the layout . I'm trying to layout the x-scrollbar in my canvas which will display results regarding the search . However , it is not properly done . Can anyone please help ?
Below here is my code :
...ANSWER
Answered 2021-Dec-29 at 20:33I rewrote your code with some better ways to create table. My idea was to pick out the buttons that fell onto a range of type and then loop through those buttons and change its color to those type.
QUESTION
I'd like to start by saying that I'm very new to Python, and I started this project for fun.
Specifically, it’s simply a program which sends compliments to you as notifications periodically throughout the day. This is not for school, and I was actually just trying to make it for my girlfriend while introducing myself to Python.
With that in mind, here's my problem. I started this project by writing the simplest version of it: one you have to start each time your computer loads, and runs while you're actively using the computer. This portion works perfectly; however, I can't seem to figure out how to do the next step: have the program carry on as normal after reboot and save its progress.
I know how to get it to start up again after reboot. Still, I'm not sure how to save its progress. Particularly, since I'm pulling the compliments out of a text file, I'm not sure how to have the program save what line it's on before rebooting. This is needed as I don't want the program to start from the first compliment each time, as there are over 300 unique ones as of now.
In order to help you understand where my code currently is as for the best advice, I've shown it below:
...ANSWER
Answered 2022-Jan-10 at 13:42Well, you should save an index to a file or something before program shutting down.
Check this out: atexit — Exit handlers
QUESTION
I have a nested list of lists which contains some data frames. However, the data frames can appear at any level in the list. What I want to end up with is a flat list, i.e. just one level, where each element is only the data frames, with all other things discarded.
I have come up with a solution for this, but it looks very clunky and I am sure there ought to be a more elegant solution.
Importantly, I'm looking for something in base R, that can extract data frames at any level inside the nested list. I have tried unlist()
and dabbled with rapply()
but somehow not found a satisfying solution.
Example code follows: an example list, what I am actually trying to achieve, and my own solution which I am not very happy with. Thanks for any help!
...ANSWER
Answered 2021-Dec-28 at 22:13Maybe consider a simple recursive function like this
QUESTION
I don't know if the title is worded correctly, but I will try my best to explain my problem. I now have a function that updates the current user's location, which works fine. The problem is that the painted pointer remains at that exact position because the decoration is painted once inside the widget and never changes.
I have looked at how google does it with the marker object, but that didn't seem to work for my app because I am not using a normal map.
...ANSWER
Answered 2021-Dec-28 at 02:03try this:
QUESTION
Based on this question Calculate Y coordinates of an image from graph point of origin I tried to do the same in app designer GUI but it does not work. I attached an image that shows that the image does not start from graph point of origin and that I get a new figure due to the set command. Any idea how to fix/do it?
Code:
...ANSWER
Answered 2021-Dec-26 at 17:05you could try to import the image data as a 2-dimensional grid, and then flipping it.. could work not sure.
QUESTION
So this seems to be an issue talked about here and there on StackOverflow with no real solution. So I have a bunch of tests that all pass when run individual. They even pass when run as a full test suite, EXCEPT when I add in my TestCase ExploreFeedTest
. Now ExploreFeedTest
passes when run by itself and it actually doesn't fail when run in the full test suite as in running python manage.py test
, it causes another test HomeTest
to fail, which passes on it's own and passes when ExploreFeedTest
is commented out from the init.py
under the test
folder. I hear this is an issue with Django not cleaning up data properly? All my TestCase
classes are from django.test.TestCase
, because apparently if you don't use that class Django doesn't teardown the data properly, so I don't really know how to solve this. I'm also running Django 3.2.9, which is supposedly the latest. Anyone have a solution for this?
ExploreFeedTest.py
...ANSWER
Answered 2021-Dec-23 at 10:31I posted the answer on the stack overflow question
I was also using factory boy, which doesn't seem to play nice with test suite. Test suite doesn't seem to know how to rollback the DB without getting rid of factory boy generated data.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install FLAT
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page