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// A C port of the example at https://iq.opengenus.org/octree

#include <stdlib.h>
#include "octree.h"

Octree * octree_point(int x, int y, int z) {
  Octree * p = malloc(sizeof(Octree));

  p->point = malloc(sizeof(Point3D));
  p->point->x = x;

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Some possible implementations of the Bresenham Algorithms in C.

The Bresenham line algorithm is an algorithm which determines which points in an
n-dimensional raster should be plotted in order to form a close approximation
to a straight line between two given points.
It is commonly used to draw lines on a computer screen, as it uses only integer
addition, subtraction and bit shifting, all of which are very cheap operations
in standard computer architectures.
It is one of the earliest algorithms developed in the field of computer graphics.
A minor extension to the original algorithm also deals with drawing circles.

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(This is a backup of https://samulinatri.com/blog/memory-management)

Memory Arena Tutorial in C

How to create a simple arena allocator in C.

Quick Start

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// From: https://cplusplus.com/forum/beginner/94946/
// By: https://cplusplus.com/user/Disch/


#define FPS 60

int frame_length = 1000 / FPS;    // Number of ms between frames. 17 gives you approx 60 FPS  (1000 / 60)
Uint32 next_frame;                // Timestamp that next frame is to occur
int skipped_frames;               // Number of frames we have skipped

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Source material:
  http://security.stackexchange.com/questions/24444/what-is-the-most-hardened-set-of-options-for-gcc-compiling-c-c
  https://wiki.gentoo.org/wiki/Hardened_Gentoo
  https://wiki.debian.org/Hardening

================================================================================================================>
GCC Security related flags and options:

CFLAGS="-fPIE -fstack-protector-all -D_FORTIFY_SOURCE=2" 
LDFLAGS="-Wl,-z,now -Wl,-z,relro"

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#!/usr/bin/env python

# A simple plugin for hiding/showing all layers.

from gimpfu import *

def hide_show_all_layers(origin, hide):
    layers = origin.layers

    pdb.gimp_undo_push_group_start(origin)

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Byobu (over SSH) Cheat Sheet

I often find myself using Byobu on a Linux machine when connected to it over SSH. In doing so, I've noticed that many of the documented keyboard shortcuts don't work. This can be due to the native PC's OS intercepting certain keys, or possibly other reasons.

Below is a cheatsheet with Byobu features I have found usually work when run over a SSH connection.

Action	Windows + Putty to Ubuntu	MacOS + Terminal to Ubuntu
Help menu	BASH: byobu-config	FN-F1
Create new window	CTRL-a c	CTRL-a c or FN-F2

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:lua vim.api.nvim_open_win(0, true, {relative='win', width=200, height=200, row=16, col=16})

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# Taking a few things from my fish cfg back to bash: vi keys, branch name in prompt, custom prompt, completion (with fzf)
# Custom prompt
# Vi keys
# History
# Completion (Using fzf & fzf-tab-completion)

# Tip: Install bashmarks and fasd for faster directory browsing

# Custom prompt: Add to .bashrc
# Helps reset prompt when tty crashes

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#!/usr/bin/env node
/* 
Usage: ./to-netscape-bookmarks.sh urls | tee bookmarks.html
urls is a simple textfile with urls separated by breakline
Titles are pulled with pup tool
*/

const { exec } = require('child_process'), fs = require('fs'), readline = require('readline')

const file = process.argv[2]