Challenges

Featured Challenge:
#51 — A* Pathfinding Algorithm

In this multi-part coding challenge, I attempt an implementation of the A* Pathfinding Algorithm to find the optimal path between two points in a 2D grid.

jan 16, 2017

A* Pathfinding Algorithm

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In this two part coding challenge, I use the p5.js library to create my own version of the classic Atari video game Asteroids!

Asteroids

In this coding challenge, I make a HTML5 canvas doodling application with p5.js. Users can save and share drawings in real-time with the Database as a Service (DBaaS) Firebase.

Saving p5.js Drawings to Firebase

In this Coding Challenge, I code a Context-Free Grammar text generator from scratch. The concept of recursion is explored. This video is part of Session 7 of the "Programming from A to Z" ITP class.

Context-Free Grammar

In this multi-part coding challenge I attempt to use a Markov Chain to generate a new name for my YouTube channel.

Markov Chain Name Generator

Sure, flappy bird is fun, but what happens if we take away the button and control the bird with clapping! Yes, it's time for Clappy Bird!

Clappy Bird

In this challenge, we build a word counting (concordance) application, and visualize the frequency of each word using variable font size! We also implement the TF-IDF algorithm

Word Counter

In this coding challenge, I make a Mad Libs web application using p5.js and tabletop.js (a JavaScript library for connecting to google sheet data.)

Mad Libs Generator

In this coding challenge, I make something called a "Word Interactor" using regular expressions, JavaScript, and the p5.js library for DOM manipulation.

Word Interactor

The Diastic technique is a methodology and algorithm for generating found poetry from a source text. It was developed and used by poet / artist Jackson Mac Low. In this challenge, I generate diastic poems using p5.js.

Diastic Machine

In this coding challenge, I simulate a blob-like shape with wobbly edges using beginShape(), endShape(), polar coordinates, and perlin noise.

Blobby!

In Part 1 of this multi-part coding challenge, I introduce the classic computer science problem of the Traveling Salesperson (TSP) and discuss the pitfalls with a brute force solution. In Part 2, I discuss Lexicographic Ordering and demonstrate one algorithm to iterate over all the permutations of an array. In Part 3, I apply this algorithm to a brute-force solution of the TSP problem. Every single route permutation is checked one by one. In Part 4, I attempt to create a solution to the TSP problem with a genetic algorithm, and then I add a “crossover” algorithm in Part 5.

Traveling Salesperson

In this coding challenge, I implement a "Poisson-disc Sampling" algorithm to evenly (but randomly) distribute a set of seed points throughout a canvas. The algorithm is implemented in JavaScript using p5.js.

Poisson-disc Sampling

In this coding challenge, I explore the generative algorithm "Diffusion-Limited Aggregation". The pattern is generated from random walkers clustering around a seed (or set of seed) point(s).

Diffusion-Limited Aggregation

It's time to attempt to build a Flappy Bird clone in JavaScript with the p5.js!

Flappy Bird

In this coding challenge, I continue one of my favorite subjects: Algorithmic botany! This video covers the subject of Phyllotaxis, what it is and how it can be used to generate sunflower-like patterns inspired by nature.

Phyllotaxis

In this coding challenge, I implement a "smart rockets" algorithm (based on a simulation by Jer Thorp).

Smart Rockets in p5.js

In this 4th of July themed coding challenge, I build an HTML5 canvas fireworks simulation from scratch using the p5.js JavaScript library. I also show how to use Processing to create 3D Fireworks.

Fireworks

In this coding challenge, I use Perlin noise to create a two-dimensional flow field with the p5.js library.

Perlin Noise Flow Field

In this coding challenge, I show you how to make 2D supershapes in p5.js.

2D Supershapes

In this coding challenge, I’m going to use superformulas to create a superellipse in p5.js. This is part 1 of a multi-part series on superformulas, superellipses and supershapes.

Superellipse

In this coding challenge, I'm building on top of the Space Colonization video and creating a 3D Fractal Tree, using the same algorithm, in Processing.

3D Fractal Trees

In this third installment of my series on algorithmic botany, I discuss L-systems and how they can be used to generate trees and other fractal patterns in p5.js.

Fractal Trees - L-System

In this coding challenge, I'm using the space colonization algorithm to make a tree generator. This is the 4th part of my algorithmic botany series.

Space Colonization

In this coding challenge, I'll implement fractal trees with recursion in p5.js. This is the first part of a series on algorithmic botany.

Recursive Fractal Trees

More algorithmic botany! Another way to generate a fractal tree is to consider every part of the tree an object, so that we can apply forces and attributes to all the branches and leaves and more!

Object-Oriented Fractal Trees

In this coding challenge, I visualize a Reaction Diffusion simulation using the Gray Scott model in JavaScript (with the p5.js library).

Reaction Diffusion Algorithm

Choo choo! In this multi-part coding challenge, I create a maze generator using a depth-first search algorithm with recursive backtracking. The idea is to walk through a grid of cells, removing walls as we go to build a maze.

Maze Generator

In this viewer submitted coding challenge, I program a cellular mitosis simulation in p5.js.

Mitosis Simulation

This is my attempt to make a Space Invaders type game in the browser with JavaScript and the p5.js library

Space Invaders

In this coding challenge, I code a p5.js version of the Snake Game.

The Snake Game