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WiiPhysics is a physics playground for the Wii, much like Crayon Physics or PocketPhysics. It uses Box2D and libwiisprite.

Project Info


Demo video of WiiPhysics 2.1 in action:


The svn repository can be found here: wiiphysics.googlecode.com.


Enjoy wiiphysics so much that you feel obligated to buy a beer for the developer? Feel free, I like beer!


2008.08.31 - v2.2.0

  • Changelog:
    • +Added Weld Joint
    • +Added a second player (with limited capability)
      • (Second player can drag, toss, freeze, unfreeze shapes)
    • +Fixed Jumping of pen drawn shapes on create
    • +Fixed placement of pin (proper pin joints now)
    • +Added realistic grass.
    • +Fixed bugs and crashes. (Specficially related to pully)
    • +Restructured backend data management system.
    • +Fixed pointer detection for selecting rectangles.
    • +Added Support Button
    • +Increased Object Limits

2008.08.27 - v2.1.0

  • Changelog:
    • +Added fully scrollable world with ground
      • up, down, left, right to pan (Or just move the pointer to the edge of the screen)
    • +Added minimap for scrolling around world
    • +Added ability to fix camera to an object for easy following around world
      • Hit 1 on any object to attach camera (works best on circles and squares)
      • (To detach, just hit 1 anywhere on the screen)
    • +Added sky, with dynamic clouds
      • (You now know when you are in freeze b/c the clouds stop moving)
    • +Fixed jumping of rectangles on draw
    • +Lots of bug fixes

2008.08.25 - v2.0.0

  • Changelog:
    • +Added pen joint for moving dynamic objects
      • -You can now "Throw" objects
    • +Added distinction between objects that are frozen and mobile to make it obvious to the user whats frozen
    • +Fixed some bugs (Including crash from drawing small boxes)
    • +Keep objects from jumping when you select them
    • +Improved intro screen
    • +increased pen draw size
    • +started on framework for zoomable worlds

2008.07.08 - v1.3.0

  • Changelog:
    • +In Game Help
    • +Pen Drawing added
    • +Reset Button Added
    • +Added BG Music
    • +Bug fixes
    • +Initial action sounds (Using Sndlib)
    • +Intro Screen while wiiphysics constructs
    • +Main Menu
    • +Added Prismatic (Slider) Joint
    • +Added Settings Menu
    • +Added configurable Color
    • +Added configurable Density
    • +Added Show/Hide Menu Button
    • +Increased world size (no longer hit the bottom with too many objects)
    • +Fixed layout
    • +Reset velocity to 0 if you grab an object
    • +Fixed Freeze Unfreeze (Hit B while you have object selected to swap)
    • +Dynamic Gravity Setting GUI
    • +Dynamic Restitution GUI (Change individual object bouncieness)
    • +Dynamic Friction GUI

2008.06.30 - v1.2

  • Changelog:
    • +Removed need for /data directory, compacting wiiphysics into single boot.elf file
    • +Added Undo Button
    • +Pulleys, Ropes and Gears (Pin) work great now
    • +Improved Icons and layout
    • +Line Drawing works perfect now
    • +Many Bug fixes, clean up

2008.06.29 - v1.1

  • Changelog:
    • +Added Line (Dynamic rectangle) Drawing
    • +Clear Screen Button
    • +Pulley/joint bug fixes to stop crashing!
    • +fixed layout a bit

2008.06.28 - v1.0-Initial Release


To show off some of the things you can do with wiiphysics; I'm going to start doing a weekly contest. No prizes sadly (Unless someone wants to step forward to sponsor and offer up a prize.) But I will in fact pick a winner.

Pinball Wizard (8/31/2008 - 9/7/2008)

Build the best, working pinball machine you can using Wiiphysics. Must have at least two paddles, and some form of ball launcher. Submit links to video of your machine when you are finished. Contest ends 9/8/2008 at 0:00. Good luck!


Bug Reporting

Any feature requests/ issues you'd like fixed should be reported here: http://code.google.com/p/wiiphysics/issues/list

Physics Tools Overview

Tools Overview:

  • Select - Use this tool to select objects, Hold A to drag them around, Hold A and press B to put them to sleep/wake them up
  • Draw Circle - Draw Circle
  • Draw Box - Draw Box
  • Clear Screen (BOMB) - Remove Everything
  • Undo - Undo


  • Rope Joint - Connect two objects by a rope
    • Click on two Objects to connect them
  • Rotate Joint - Create a rotation joint using 2 objects
    • Click on two objects to set up a rotation relationship
  • Pulley Joint = Click on three objects to set up a pulley system
    • 2nd object is the pulley anchor

Object Control

  • Mobile Objects - Keep this selected to allow these objects to move
  • Frozen Objects - Keep this selected to freeze objects you create

Sim Control

  • Run - Run the simulation
  • Stop - Freeze/pause the simulation (Good for building)


See in-game help for controls.