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Dmitry Mozgin m039

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@macklinb
macklinb / Unity-XORShift.md
Created February 25, 2021 11:26
C# implementation of UnityEngine.Random with (almost) 1-to-1 parity

This is a partial C# implementation of UnityEngine.Random with (almost) 1-to-1 parity.

Unity uses Xorshift for psuedorandom number generation. In particular Xorshift128, which uses a state consisting of four unsigned 32-bit integer values. The state is initialized in UnityEngine.Random.InitState using a signed 32-bit integer seed, which is shuffled around with a technique similar to the way a Mersenne Twister is initialized.

This has been tested as far back as Unity 4.7.0f1, and as recent as Unity 2020.1.17f1.

Notes

  • Huge thanks to MoatShrimp for figuring out how Unity initializes the Xorshift state parameters in InitState, and floating point generation.
  • C# - As below. Values may differ in .NET 5.0, but thankfully Unity doesn't yet support that.
  • JavaScript - Check out MoatShrimp's JS implemention (and neat Undermine loot lookup tool) here:
@zebrajaeger
zebrajaeger / usbmount-headless.md
Last active February 20, 2025 06:06
usbmount (also ntfs) for Raspberry PI 4b - Raspberry PI OS lite 32 (headless)

usbmount (also ntfs) for Raspberry PI 4b - Raspberry PI OS lite 32 (headless)

1. Install OS

Download and install "Raspberry Pi Imager" from https://www.raspberrypi.org/software/

Choose "Raspberry PI OS Lite 32" Press Ctrl+Shift+X

  • Maybe switch to save always
@acarril
acarril / bootable-win-on-mac.md
Created November 18, 2022 17:49
Create a bootable Windows USB using macOS

For some reason, it is surprisingly hard to create a bootable Windows USB using macOS. These are my steps for doing so, which have worked for me in macOS Monterey (12.6.1) for Windows 10 and 11. After following these steps, you should have a bootable Windows USB drive.

1. Download a Windows disc image (i.e. ISO file)

You can download Windows 10 or Windows 11 directly from Microsoft.

2. Identify your USB drive

After plugging the drive to your machine, identify the name of the USB device using diskutil list, which should return an output like the one below. In my case, the correct disk name is disk2.