Verlet

This is example of a simple Verlet (pronounced 'ver-ley') physics engine.

This engine often used to calculate the trajectories of particles in models of molecular dynamics and computer games. Popularity among game developers engine was in 2000 with the release of the game Hitman: Codename 47.

Originally based on verlet-js https://github.com/subprotocol/verlet-js

This application contain four different example:
* Shapes: This is the hello world of Verlet. Simple shapes. All objects are draggable. Also demonstrating various constraint stiffness coefficients.
* Spiderweb: This web was spun using sinusoidal functions, distance tensioners, and pin constraints to hold it all up. Initially the spider was really good at playing Twister by itself (too good), and not so much at crawling. The spider can be pulled off the web.
* Cloth: Lighted translucent cloth simulation. Color and opacity are both controlled by the local-pull of the fabric.
* Fractal Tree: Recursively generated fractal tree demonstrating both distance and angular constraints.

Application supports multi-touch, accelerometer that emulating gravity acting on objects.

Fun with Verlet physics engine!