A tutorial on drawing physics shapes with your cursor using Unity3D.

In this tutorial I will show you how to draw and manipulate basic 2D physics shapes with your cursor using Unity, such as rectangles, circles and triangles. No additional external dependencies are required (tested with 2017.2, but should also work with 5.x).

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Background

Back in 2008, I had loads of fun playing IncrediBots. For the uninitiated, the game is very similar to Phun (now Algodoo); the game involved drawing basic physics shapes, placing rotating/sliding joints on them, and controlling…


I would like to share a (somewhat recent) anecdote on how a one-line code change improved my understanding of software engineering; it’s an experience in my life that has had a profound effect on my work ethic ever since.

If you want to skip the story, the simple explanation is in the last section.

Background

So it is 2015. I’m a CS student fresh out of sophomore year, getting ready to jump into the second half of my degree. At that time I had just learned how to construct a B-tree, built my own recursive descent parser, and finished a software…

Dan Kondratyuk

A programmer and mathematician that enjoys solving puzzles, one piece at a time. https://hyperparticle.com

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