Pymunx

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About

Pymunx 80px.png
pymunx is an API for easily integrating physics into python (and pygame), using the chipmunk physics engine with the pymunk bindings. (See Python Physics for more infos.)


Status

The status is early and experimental, but already testable. Only few functions of pymunk are not yet implemented, and the whole chipmunk commandset is available via pymunx.space. I'm quite working on it and will post updates frequently the next time, so check back often :) I'll post my updates and demos here, on http://www.linuxuser.at/pymunx, and there's also a forum shared with pymunk and chipmunk.


Features

Fast, Easy to use, Circles, Squares, Segments, Polygons, Colissions, Variable Gravity, Density, Mass, Friction, Elasticity, Inertia, Impulses, Screenshots, Screencasts, Cross-Platform, Entertaining, Fascinating, ...


Documentation


Sources


API class with documentation

Examples


Download

You can either take the latest zip (File:Pymunx.zip), or get the pymunx api class and examples bundled with the chipmunk libraries and pymunk via svn:

svn checkout http://pymunk.googlecode.com/svn/trunk/ pymunk-read-only


Limitations

  • Screencast works only in Linux with mencoder installed

Things, pymunx can't handle yet:

  • Joints
  • Grouped Elements
  • maybe more :)

(As a workaround, you can anyway access the whole space, which is stored in pymunx.space)


pyGame Example

The typical usage in pygame looks like this:

      import pygame
      from pygame.locals import *
      from pygame.color import *   

      from pymunx import *
       
      pygame.init()
      screen = pygame.display.set_mode((800, 800))
      clock = pygame.time.Clock()

      world = pymunx()
      world.add_wall((100, 200), (300, 200))
         
      # Main Game Loop:
      while running:
         # Event Handling
         # Maybe calling world.add_ball(event.pos) or world.add_square(event.pos)
         # ...

         screen.fill((255,255,255))

         # Update & Draw World
         world.update()
         world.draw(screen)

         # Flip Display
         pygame.display.flip()
          
         # Try to stay at 50 FPS
         clock.tick(50)


Screenshots

pymunx_demo4_drawpoly.py

Screenshot1.png Screenshot2.png

Screenshot3.png Screenshot4.png