Box2D Forums

Hello

this: http://code.google.com/p/qrayon/ is a early version of simple toy, inspired by Crayon Physics. It is uses Qt, OpenGL, and it's developed in Linux (but - as it is Qt, Windows port is just 'a compile away')

After successfully mimic Crayon Physics in Qt, I decided to make something completely different.
Now it's goal is to create a cool toy, something similar to Lego Technics. It's still uses Qt-4, this time with Graphics View, which allows to nice scene management and interaction.

Some video here: http://www.youtube.com/watch?v=cqIBKdHMXuU

currently on can use only simple girders, wheels and wheel with motor to build simple construction with nails.
Planned:
- more construction elements
- hydraulic cylinders,
- rope&hook (to build crane),
- forklift components,
- breakable nails/bolts,
- breakable rods and girders,
- rough terrain, random obstacles (stones),
- saving/storing state to (most likely XML) file,
- some goal, ie. .moving box from one place to another with limited set of elements available,
- some graphics.

that is very cool! so what are nails in box2d terms?

Cool, I'll put up a link.

Nails are nothing more than just revolute joints. All Box2D objects are wrapped with Qt's GraphicsItem, so event joints can have graphical representation and user interaction.

It's really interesting to try your game in action.
Can you explain how to build sources, that are available at google code? Another option is to upload windows binaries

The Construqtor is now hosted on it's own, at http://code.google.com/p/construqtor/

I will build windows binary when some sane version will be released.

How to build:

1. Get Qt-4.3 or newer
2. Get sources from Subversion repo
3. Use qmake to generate makefile/VS project
4. Build
5. Enjoy

Ad. 1.
Qt comes with each own development tools. It is available on any modern Linux distro. For windows, get Qt here: http://trolltech.com/developer/downloads/qt/windows

Ad 2.
See 'source' tab on project page. You need subversion client.

Ad 3.
Use Qt's 'qmake' to generate project/makefile from constructor.pro.

Ad 4.
Use build tool to which Qt was configured

On Linux box, I would do:

Update:

New demo: http://pl.youtube.com/watch?v=HjQKgjzFKvE

Featuring: bolts and nails breakable under heavy load, random large terrain.