cyingfan

from copy import deepcopy
from time import time
from typing import Dict, Optional, Set, Tuple


class Cell:
    def __init__(self):
        self.possibilities: Set[int] = set(range(1, 10))
        self._update()

raysan5

CUSTOM GAME ENGINES: A Small Study

A couple of weeks ago I played (and finished) A Plague Tale, a game by Asobo Studio. I was really captivated by the game, not only by the beautiful graphics but also by the story and the locations in the game. I decided to investigate a bit about the game tech and I was surprised to see it was developed with a custom engine by a relatively small studio. I know there are some companies using custom engines but it's very difficult to find a detailed market study with that kind of information curated and updated. So this article.

Nowadays lots of companies choose engines like Unreal or Unity for their games (or that's what lot of people think) because d

bus710

Building rust native library to be used by flutter/android

This short doc shows how to build rust to be used by flutter/android app.
Inspired by hyousef's work but added some details for the workflow.

References

Docs:

shafik

What is the Strict Aliasing Rule and Why do we care?

(OR Type Punning, Undefined Behavior and Alignment, Oh My!)

What is strict aliasing? First we will describe what is aliasing and then we can learn what being strict about it means.

In C and C++ aliasing has to do with what expression types we are allowed to access stored values through. In both C and C++ the standard specifies which expression types are allowed to alias which types. The compiler and optimizer are allowed to assume we follow the aliasing rules strictly, hence the term strict aliasing rule. If we attempt to access a value using a type not allowed it is classified as undefined behavior(UB). Once we have undefined behavior all bets are off, the results of our program are no longer reliable.

Unfortunately with strict aliasing violations, we will often obtain the results we expect, leaving the possibility the a future version of a compiler with a new optimization will break code we th

vurtun

/* ===============================================================
 *                              SDEFL
 * ===============================================================
 * public domain - no warranty implied; use at your own risk
 * References:
    https://bitbucket.org/rmitton/tigr/src/be3832bee7fb2f274fe5823e38f8ec7fa94e0ce9/src/tigr_inflate.c?at=default&fileviewer=file-view-default
    https://github.com/github/putty/blob/49fb598b0e78d09d6a2a42679ee0649df482090e/sshzlib.c
    https://www.ietf.org/rfc/rfc1951.txt
*/
#include <stdlib.h>

smkplus

Shader "MaterialPropertyDrawer"
{
Properties
{
_MainTex("Texture", 2D) = "white" {}
 
[HideInInspector] _MainTex2("Hide Texture", 2D) = "white" {}

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

KodrAus

Profiling performance

Using perf:

$ perf record -g binary
$ perf script | stackcollapse-perf.pl | rust-unmangle | flamegraph.pl > flame.svg

NOTE: See @GabrielMajeri's comments below about the -g option.

tcuthbert

Section "Extensions"
        Option "XVideo" "Disable"
EndSection

Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "AccelMethod" "sna"
   Option      "TearFree" "true"
   Option      "DRI" "true"

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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