PhysicsJS (Yes, a JavaScript Physics engine)

[Nytro]

[h=1]PhysicsJS (Yes, a JavaScript Physics engine)[/h]

In today's Web Wednesday post we're highlighting something you might think a little oxymoronic, a JavaScript Physics engine.

It's still in an Alpha status, but even so, it's looking pretty cool...

[h=2]PhysicsJS[/h]

A modular, extendable, and easy-to-use physics engine for javascript

PhysicsJS is still under development (alpha version 0.5.1), and documentation is unfinished. Feel free to use it, just be warned that the API is in flux and better documentation is on its way! (

Contributors and help needed

!)

[h=4]Features[/h]

• Use as an
  AMD Module (requireJS)
  , or
  global namespace
  .
  
  
• Modular
  ! Only load what you need. The core library is only 31k minified.
  
  
• Extendable
  ! Don’t like the collision detection algorithm? Replace it with your own!
  
  
• Not tied to a specific renderer. Display it in
  DOM
  ,
  HTML5 Canvas
  , or whatever…
  
  
• Easy! It’s a library
  written IN javascript
  … not C compiled into javascript. The syntax is familiar for javascript developers.
  
  
• Extensions to support
  points
  ,
  circles
  , and arbitrary
  convex polygons
  .
  
  
• Extensions to support
  constant gravity
  ,
  newtonian gravity
  ,
  collisions
  , and
  verlet constraints
  .
  
  

The fastest way to get a feel for what's possible is by checking out the Demos.

[h=2]Demos[/h]

There's even documentation already too.

[h=2]https://github.com/wellcaffeinated/PhysicsJS/wiki[/h]

Introductory documentation can be found on the

PhysicsJS website

. The wiki contains more advanced usage instructions.

Due to the newness of this library, documentation is non-exhaustive. If there are any points of confusion, please feel free to log an issue or

contact me

. You can also edit the wiki yourself to fill in the gaps. Any help with documenting is appreciated.

[h=4]Topics[/h]

• Fundamentals
  
  
• Scratchpads
  - they speed up computations
  
  
• Bodies
  
  
• PubSub
  
  
• Behaviors
  
  
• Collisions
  
  
• Integrators
  
  
• Renderers
  
  

And the source is officially available too;

[h=2]https://github.com/wellcaffeinated/PhysicsJS[/h]

Sursa: PhysicsJS (Yes, a JavaScript Physics engine) | Coding4Fun Blog | Channel 9