Phynix

Phynix is a physics sandbox driven by Unix-like commands. You can play with it in your browser, click here.

Phynix is built on box2dweb (a port of Box2DFlash to JavaScript). The original Box2D physics engine was developed by Erin Catto.

How to play

Interaction with the physics engine is done via one of following commands:

Make box

mkbox makes a new box at point (x, y) with width w and height h:
```
    mkbox w h x y [options]
```
You can associate the box to an ID with the id option (to be used with the mkjnt and rm commands):
```
    mkbox 25 25 400 300 --id=abc
```
You can change the object's rotation at creation time with the rot option:
```
    mkbox 100 20 39 48 --id=xyz --rot=45
```

Make circle

mkcir makes a new circle at point (x, y) with radius r
```
    mkcir r x y [options]
```
You can associate the circle to an ID with the id option (to be used with the mkjnt and rm commands).
```
    mkcir 50 13 49 --id=abc
```

Make joint

mkjnt welds two objects together with a fixed length joint:
```
    mkjnt abc xyz
```
They don't need to be of the same type.

Remove

rm removes an object from the world:
```
    rm abc
```

Freeze

frz pauses/unpauses the physics engine:
```
    frz
```

Missing features

Polygons
Gears, other types of joints from Box2D
Joints need IDs too

Ideas

mv command could apply force/impulse to a body
Wild cards: rm ab* (removes abc, abd, etc)
'Turing completeness': mkbox 15 15 ${i*20} 30 --id=box$i --i=[1..10) creates box1, box2, ..., box9 with x=20, 40, ..., 180

Contributions

If you have a cool idea or want to help with anything, feel free to submit a pull request! 👍

License

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

mion / phynix