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README.m4
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The breve Simulation Environment
http://www.spiderland.org/breve
release _VERSION_ - _DATE_
command line version for Mac OS X, Linux and Windows
jk [at] spiderland.org
-= INTRODUCTION =-
breve is a simulation environment which allows users to define the behaviors
and interactions of different types of agents in a simulated 3D world and
observe the emergent behaviors. breve is conceptually similar to packages
such as Swarm and StarLogo, but simulates objects in a continuous 3D world
with continuous time. breve thus allows simulation involving realistic
collision detection and physics.
Agent behaviors are written in Python or in a simple scripting language called
"steve". Users can define an agent's behavior by specifying how the agent
interacts with the world at each timestep and how the agent reacts to events
like collisions.
breve includes full collision detection and physical simulation of rigid
bodies. See the Walker and Gravity demo simulations for examples.
For more detailed information about the breve environment, consult the
documentation in the "docs" directory.
-= GETTING STARTED =-
NOTE FOR WINDOWS USERS: You'll need to download the GLUT library in order
to run breve. One source for this is http://www.xmission.com/~nate/glut.html .
The GLUT DLL may be placed in the same directory with the breve executable.
The best way to get started with breve is to run some of the included demo
simulations, which are found in the "demos" directory. More complete
information on programming and running simulations with breve is available
in the documentation, which is found in the "docs" directory.
These are the directions to get started quickly with the command-line
version of breve _VERSION_.
1) set the environment variable BREVE_CLASS_PATH to the full path of the
included "lib/classes" directory. For example, using the bash shell
under Linux or Mac OS X:
export BREVE_CLASS_PATH=<path to breve>/lib/classes
Under windows, this might be something like:
set BREVE_CLASS_PATH=C:\<path to breve>\lib\classes
2) run breve with one of the demo files: breve <simulation file>.
For example:
./bin/breve ./demos/Gatherers.tz
Or under Windows:
\BIN\BREVE.EXE DEMOS\GATHERERS.TZ
3) press space bar to toggle the simulation, <esc> to exit. Use the left
mouse button to select objects and to rotate the simulation, left
mouse button + shift to zoom the camera and the right mouse button to
access the simulation menu (or contextual menus associated with individual
objects). F1 steps forward the simulation a single step.
For more information about what the simulations do and how they work, open
up the demo files in any text editor and read the comments at the top of
the file.
-= FEEDBACK =-
This software is provided with the hope that it will be useful--the only way
for me to make the software more useful is to hear your feedback. You can
send me mail directly at jk [at] spiderland.org. Please let me know how you
use the software and how it could be improved.
If you have any cool or useful simulations or classes that should be included
with future releases, mail them as well.
If you would like to join the breve users mailing list, you can subscribe at
http://lists.spiderland.org/mailman/listinfo/breve .
-= LICENSE =-
The breve Simulation Environment
Copyright (C) 2000-2007 Jonathan Klein
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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
--
Portions of this software use the Open Dynamics Engine library, under the
following license:
Open Dynamics Engine
Copyright (c) 2001, 2002, Russell L. Smith.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
Neither the names of ODE's copyright owner nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--
Portions of this software use the expat library, under the following license:
Copyright (c) 1998, 1999, 2000 Thai Open Source Software Center Ltd
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.