Craft | simple Minecraft clone written in C using modern OpenGL | Game Engine library
kandi X-RAY | Craft Summary
kandi X-RAY | Craft Summary
Minecraft clone for Windows, Mac OS X and Linux. Just a few thousand lines of C using modern OpenGL (shaders). Online multiplayer support is included using a Python-based server.
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QUESTION
Consider following examples for calculating sum of i32 array:
Example1: Simple for loop
...ANSWER
Answered 2022-Apr-09 at 09:13It appears you forgot to tell rustc it was allowed to use AVX2 instructions everywhere, so it couldn't inline those functions. Instead, you get a total disaster where only the wrapper functions are compiled as AVX2-using functions, or something like that.
Works fine for me with -O -C target-cpu=skylake-avx512
(https://godbolt.org/z/csY5or43T) so it can inline even the AVX512VL load you used, _mm256_load_epi32
1, and then optimize it into a memory source operand for vpaddd ymm0, ymm0, ymmword ptr [rdi + 4*rax]
(AVX2) inside a tight loop.
In GCC / clang, you get an error like "inlining failed in call to always_inline foobar
" in this case, instead of working but slow asm. (See this for details). This is something Rust should probably sort out before this is ready for prime time, either be like MSVC and actually inline the instruction into a function using the intrinsic, or refuse to compile like GCC/clang.
Footnote 1: See How to emulate _mm256_loadu_epi32 with gcc or clang? if you didn't mean to use AVX512.
With -O -C target-cpu=skylake
(just AVX2), it inlines everything else, including vpaddd ymm
, but still calls out to a function that copies 32 bytes from memory to memory with AVX vmovaps
. It requires AVX512VL to inline the intrinsic, but later in the optimization process it realizes that with no masking, it's just a 256-bit load it should do without a bloated AVX-512 instruction. It's kinda dumb that Intel even provided a no-masking version of _mm256_mask[z]_loadu_epi32
that requires AVX-512. Or dumb that gcc/clang/rustc consider it an AVX512 intrinsic.
QUESTION
I'm trying to pass implicit parameters to a submodule in an instantiated module. The implicit parameter is the config package defined in rocketchipenter link description here, I want to use the config package to pass some constants to submodules.But when I use the module instantiation, the port I define in the submodule is always not found.
The top-level module is defined as follows:
...ANSWER
Answered 2022-Mar-29 at 16:18I assume you are instantiating your module using reflection because it is how rocket-chip does its top-level instantiation, but note that rocket-chip only does that because it accepts the name of its top-level module via the command-line. If you know the class you want to instantiate, you can just do so directly:
QUESTION
The number of variants that exist to showcase how postcss.config.js
has to be configured is extremely confusing. There are examples (like the one at the tailwindcss
documentation) that use this:
ANSWER
Answered 2021-Oct-26 at 14:58In your terminal run the below command to install tailwind css and its dependencies via npm.
QUESTION
Here is the dput for my data:
...ANSWER
Answered 2022-Feb-24 at 13:59Increase the space between the plot and the axis using scale_y_discrete(expand = expansion(mult = c(0.05, 0.7)))
. The second element to the mult
argument controls the upper limits: set at a high value to illustrate the point - set to suit your aesthetic requirements.
QUESTION
I know this is well trodden territory but I have a specific question... I promise.
Having spent very little time in the statically typed, object oriented world, I recently came across this design pattern while reading Crafting Interpreters. While I understand this pattern allows for extensible behavior (methods) on a set of well defined existing types (classes), I don't quite get the characterization of it as a solution to the double dispatch problem, at least not without some additional assumptions. I see it more as making a tradeoff to the expression problem, where you trade closed types for open methods.
In most of the examples I've seen, you end up with something like this (shamelessly stolen from the awesome Clojure Design Patterns)
...ANSWER
Answered 2022-Feb-23 at 19:13The comment from @user207421 is spot on. If a language does not natively support double dispatch, no design pattern can alter the language to make it so. A pattern merely provides an alternative which may solve some of the problems that double dispatch would be applied to in another language.
People learning the Visitor Pattern who already have an understanding of double dispatch may be assisted by explanations such as, "Visitor solves a similar set of problems to those solved by double dispatch". Unfortunately, that explanation is often reduced to, "Visitor implements double dispatch" which is not true.
The fact you've recognized this means you have a solid understanding of both concepts already.
QUESTION
I know there is a few questions on SO regarding the conversion of JSON file to a pandas df but nothing is working. Specifically, the JSON requests the current days information. I'm trying to return the tabular structure that corresponds with Data
but I'm only getting the first dict
object.
I'll list the current attempts and the resulting outputs below.
...ANSWER
Answered 2022-Jan-20 at 03:23record_path
is the path to the record, so you should specify the full path
QUESTION
I'm trying to communicate with a server running locally on my machine. I just don't know how to write the message the sever expects. I'm trying to do this on a .Net application (C#). This server expects an at least 10 byte message arranged by the following structure, from the manual:
[Full manual] http://jkca.ca/help/pages/telemetry.html#messageformat
Each message has the same basic binary format. All multi-byte values are in network-byte-order (big-endian)!! The minimum message size is 10 bytes. Clients are allowed to send Client Request messages (see Message Type Table). The server will respond with corresponding Server Reply messages. The Request ID can be freely assigned by the client and has no special meaning. The server's reply message will use the same Request ID in the corresponding answer.
(I seem to be unable to format a table in this question so I'm omitting the table that can be found in the manual)
I would like to understand how to form these messages. If anyone could explain to a non CS student how to form, for example, the message to send a "pause command" (http://jkca.ca/help/pages/telemetry.html#msg27) that would be super useful.
I've tried all sorts of variations of:
...ANSWER
Answered 2022-Jan-11 at 00:09To expand on Hans' comment, each letter in a string literal usually equates to one byte. E.g. A
is stored as 0x41
, B
is stored as 0x42
, 0
is stored as 0x30
. Search for ASCII and UTF8 character encodings for more info. When you write a string like '1000', then get the underlying bytes, you end up with the sequence 0x31 0x30 0x30 0x30
. The number of bytes here is equal to the number of digits in your string. This is a variable-length number, and it's not a very compact way to store the information, because instead of using the full range of each byte (00 to FF) for a total of 256 possibilities per byte, it only uses 10 of the possibilities (30 to 39). This inefficiency becomes more obvious when you use larger numbers, e.g. 1000000 takes up 7 bytes.
The server is expecting the request id in a different format, int32
, which always takes up 4 bytes. You can get the data into this format by calling BinaryPrimitives.WriteInt32BigEndian(buffer, 1000)
. The same applies for the message type id and the data size fields, they should be provided as Int16.
After reading the documentation you posted, it looks like the expected data for a 'Set Pause' request would be like this:
QUESTION
I have a dataset that can be crafted in this way:
...ANSWER
Answered 2022-Jan-09 at 18:11One of the problems is that resample('W', on='Date')
and .dt.strftime("%Y-%U")
seem to lead to different numbers in both dataframes. Another problem is that boxplot internally labels the boxes starting with 1.
Some possible workarounds:
- oblige
boxplot
to number starting from one - create the counts via first extracting the
year-week
and then usegroup_by
; that way the week numbers should be consistent
QUESTION
I'm hoping to use SWC in Rust to generate some TypeScript code. Unfortunately, it seems the emitter can only print JavaScript. Is this correct, or is there a way to print TypeScript? For instance, let's say we're crafting the following AST.
...ANSWER
Answered 2021-Dec-29 at 12:46You need to first create a compiler (with the swc
package not swc_common
)
Inside your Cargo.toml dependencies add :
swc = { git = "https://github.com/swc-project/swc" }
QUESTION
I am crafting a Powershell script that aims to turn off a Windows machine (laptop/PC) once a download of one or more files is completed (for the sake of the example, let's assume one large file is the case here).
In few words, we're reading the size of the entire downloads folder each x seconds and we compare the before and after delay sizes. If there is no change in the recent time, that means the download is either completed or stuck, both cases lead to shutdown.
Given the following script (the size getter can be a standalone function at some point, yes):
...ANSWER
Answered 2021-Dec-20 at 21:24This answer is meant to demonstrate that, even though unreliable, file size can be monitored in real-time. In this case [System.IO.StreamWriter]
is writing to a file adding 1 byte on each iteration until the the file reaches 1Mb.
I have also performed the same test while downloading a "test file" and it's working fine for me, the total size of the folder is being properly updated.
The possible causes for what you're observing and purely based on assumptions:
- The file being download has pre-allocated space - I don't see how that would be possible since, as you explained, by looking on Explorer you can see the file size increasing.
- There is not enough time between the size before vs the size after calculation - This could be due to buffering, mklement0 has explained this in detail. Increasing the sleep time might solve this problem. Also, calling the
.Refresh()
method which I was not aware of, TIL thanks :)
My thoughts, I personally don't think this is the right approach to solve this problem. Process monitoring would be a much better approach (assuming this is a possibility - also explained by mklement0 and I totally agree with him).
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Install Craft
Download and install CMake if you don't already have it. You may use Homebrew to simplify the installation:. Download and install CMake and MinGW. Add C:\MinGW\bin to your PATH. Download and install cURL so that CURL/lib and CURL/include are in your Program Files directory. Use the following commands in place of the ones described in the next section.
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