[OLPC-Games] Micropolis source code release!

[Don Hopkins]

This holiday I got a lot of work done reworking Micropolis for Python 
and Cairo!

The "MicropolisCore" project includes the latest Micropolis (S*mC*ty) 
source code, cleaned up and recast into C++ classes, integrated into 
Python, using the wonderful SWIG interface generator tool: 
http://www.swig.org
It also includes a Cairo based TileEngine, and a cellular automata 
machine CellEngine, which are independent but can be plugged together, 
so the tile engine can display cellular automata cells as well as 
SimCity tiles, or any other application's tiles.

This is what SJ was asking for at his keynote talk at last year's game 
developer's conference: deconstruct games like SimCity into reusable 
components for making other games!

I also wrote some example Python code that uses the TileEngine module to 
make a scrolling zooming view of a live city with the Micropolis module, 
and a scrolling zooming view of a cellular automata with the CellEngine 
module.

The TileEngine comes with a Python TileWindow base class that implements 
most of the plumbing, tile display and mouse tracking, so SimCity and 
the CellEngine can easily subclass and customize to suit their needs.

You can pan with the mouse and arrow keys, and zoom in and out by 
typeing "i" or "o", or "r" to reset the zoom.

The TileEngine supports zooming in and out, and has a lazy drawing 
feature that calls back into Python to render and cache the scaled tiles 
right before they're needed (so you can implement the tile caching 
strategy in Python, while the rendering is in efficient C++ code calling 
hardware accelerated Cairo -- and the Python code could easily render 
tiles with pretty scaled SVG graphics).

The Micropolis engine can load a SimCity save file and run it, and use 
the TileEngine to draw it, but you can't actually interact with it or 
edit the map yet, since the user interface and other views haven't been 
implemented, just a scrolling zooming view of its tiles.

I hope this code serves as a good example of how to use SWIG to 
integrate C++ classes into Python and Cairo, in a portable cross 
platform way that works on Linux and Windows.

    -Don

http://www.DonHopkins.com/home/micropolis


  Micropolis Downloads

This is the binary and source code for Micropolis (A.K.A. "S*mC*ty": see 
the GPL License and additional terms, below 
<http://www.donhopkins.com/home/micropolis/#license>), which is released 
under the GPL.

Questions to dhopkins at DonHopkins.com <mailto:dhopkins at DonHopkins.com>.

    * *micropolis.xo
      <http://www.donhopkins.com/home/micropolis/micropolis.xo>*http://www.donhopkins.com/home/micropolis/micropolis.xo
      Download this to TCL/Tk Micropolis install on the OLPC XO-1.
    * *micropolis-activity.tgz
      <http://www.donhopkins.com/home/micropolis/micropolis-activity.tgz>*
      http://www.donhopkins.com/home/micropolis/micropolis-activity.tgz
      Download this to install TCL/Tk Micropolis on x86 Linux systems.
    * *micropolis-activity-source.tgz
      <http://www.donhopkins.com/home/micropolis/micropolis-activity-source.tgz>*http://www.donhopkins.com/home/micropolis/micropolis-activity-source.tgz
      Download this to build TCL/Tk Micropolis from source.
    * *MicropolisCore.tgz
      <http://www.donhopkins.com/home/micropolis/MicropolisCore.tgz>*http://www.donhopkins.com/home/micropolis/MicropolisCore.tgz
      Download this to build the Python modules micropolis, cellengine
      and tileengine.
          o The micropolis module is the new version of Micropolis,
            cleaned up and recast as a C++ class.
          o The cellengine module is a cellular automate machine engine.
          o The tileengine module is a Cairo based tile renderer, used
            to display micropolis tiles and cellengine cells. It plugs
            into micropolis and cellengine, but is independent of them
            and useful for other applications.
          o These modules require Python 2.5 and the Python modules
            pygtk, pycairo and PIL to be installed. Probably some other
            modules I can't think of off the top of my head, too.
          o This code will compile on Windows or Linux. It is intended
            to be used with the OLPC's Sugar user interface environemnt
            (depending on Cairo and Pango for graphics and text
            formatting), but layered so the core code is useful in other
            contexts such as different scripting languages, web servers,
            desktop applications, embedded devices, etc.


  Micropolis GPL License Notice

Micropolis, Unix Version. This game was released for the Unix platform 
in or about 1990 and has been modified for inclusion in the One Laptop 
Per Child program. Copyright (C) 1989 - 2007 Electronic Arts Inc. If you 
need assistance with this program, you may contact:

http://wiki.laptop.org/go/Micropolis or email micropolis at laptop.org 
<mailto:micropolis at laptop.org>.

This program is free software: you can redistribute it and/or modify it 
under the terms of the GNU General Public License as published by the 
Free Software Foundation, either version 3 of the License, or (at your 
option) any later version. This program is distributed in the hope that 
it will be useful, but WITHOUT ANY WARRANTY; without even the implied 
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
GNU General Public License for more details. You should have received a 
copy of the GNU General Public License along with this program. If not, 
see .


    ADDITIONAL TERMS per GNU GPL Section 7

No trademark or publicity rights are granted. This license does NOT give 
you any right, title or interest in the trademark SimCity or any other 
Electronic Arts trademark. You may not distribute any modification of 
this program using the trademark SimCity or claim any affliation or 
association with Electronic Arts Inc. or its employees.

Any propagation or conveyance of this program must include this 
copyright notice and these terms.

If you convey this program (or any modifications of it) and assume 
contractual liability for the program to recipients of it, you agree to 
indemnify Electronic Arts for any liability that those contractual 
assumptions impose on Electronic Arts.

You may not misrepresent the origins of this program; modified versions 
of the program must be marked as such and not identified as the original 
program.

This disclaimer supplements the one included in the General Public 
License. TO THE FULLEST EXTENT PERMISSIBLE UNDER APPLICABLE LAW, THIS 
PROGRAM IS PROVIDED TO YOU "AS IS," WITH ALL FAULTS, WITHOUT WARRANTY OF 
ANY KIND, AND YOUR USE IS AT YOUR SOLE RISK. THE ENTIRE RISK OF 
SATISFACTORY QUALITY AND PERFORMANCE RESIDES WITH YOU. ELECTRONIC ARTS 
DISCLAIMS ANY AND ALL EXPRESS, IMPLIED OR STATUTORY WARRANTIES, 
INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY, 
FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT OF THIRD PARTY RIGHTS, 
AND WARRANTIES (IF ANY) ARISING FROM A COURSE OF DEALING, USAGE, OR 
TRADE PRACTICE. ELECTRONIC ARTS DOES NOT WARRANT AGAINST INTERFERENCE 
WITH YOUR ENJOYMENT OF THE PROGRAM; THAT THE PROGRAM WILL MEET YOUR 
REQUIREMENTS; THAT OPERATION OF THE PROGRAM WILL BE UNINTERRUPTED OR 
ERROR-FREE, OR THAT THE PROGRAM WILL BE COMPATIBLE WITH THIRD PARTY 
SOFTWARE OR THAT ANY ERRORS IN THE PROGRAM WILL BE CORRECTED. NO ORAL OR 
WRITTEN ADVICE PROVIDED BY ELECTRONIC ARTS OR ANY AUTHORIZED 
REPRESENTATIVE SHALL CREATE A WARRANTY. SOME JURISDICTIONS DO NOT ALLOW 
THE EXCLUSION OF OR LIMITATIONS ON IMPLIED WARRANTIES OR THE LIMITATIONS 
ON THE APPLICABLE STATUTORY RIGHTS OF A CONSUMER, SO SOME OR ALL OF THE 
ABOVE EXCLUSIONS AND LIMITATIONS MAY NOT APPLY TO YOU.


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