simulation
Wave Simulation 1.0
Wave Simulation is developed as a smart program which is simulative to a wave disturbance propagating on a two dimensional membrane. more>>
Wave Simulation 1.0 is developed as a smart program which is simulative to a wave disturbance propagating on a two dimensional membrane. The program uses a timer to step the simulation. At each step a two dimensional wave equation is solved by using a finite differencing scheme that is space centered and time forward. The initial conditions have been exaggerated for better visibility in the OpenGL output. See the commentary in the source code for further details. The idea here is to demonstrate simple numerical processing and scientific visualization in a Cocoa based application.
The program structure uses the Model/View/Controller paradigm. The classes for this structure are grouped under one heading and the various support classes are grouped under another heading. The View part of the program combines the user interface (UI) and the OpenGL rendering. The GLView class is a wrapper, i.e., sub-class, around the NSOpenGLView class that gives the class the ability to render, among other things, a mesh that is passed in from an outside source.
The view point and lighting that the GLView class uses in its rendering is also provided from outside. The visible part of the GLView in the UI is an outlet for the rendering. Also, the GLView object has been set up so that a mouse click in the visible rendering area toggle betwever, each update cycle is quick enough to justify a single threaded structure for the program.
An important characteristic of this program is that the OpenGL rendering is encapsulated in two parts of the program: the GLView class and the DrawingFunctions.h module. All of the other support classes make no reference to OpenGL. The Avian class is meant to capture the concept of an extended physical body that can have a location in 3D space as well as an orientation.
The FlyingCamera class is based on the Avian class and provides it with extras that are appropriate for handling views from various positions and orientations. The Mesh and MeshNode clases are also divorced from OpenGL. A GLView object 'knows' what to do with FlyingCamera and Mesh objects, but not vice versa. Also, the Controller object 'knows' how to relate user input, via the steppers, to FlyingCamera settings.
This program is also provides a good way to waste enormous quantities of time. The membrane uses a material that is meant to be a fair approximation of ruby. When the light is set to, say, colatitude equal to 35 degrees and longitude equal to 200 degrees the surface shows some nice highlights. Be warned: this program can induce a hypnotic state in the unwary user.
Weasel Simulation 1.0
Weasel Simulation is a proper and high-quality application which evolves one string into another using selection and random mutation, demonstrating how fast a result can be achieved with comparatively little effort. more>> <<less
Noble Ape Simulation 0.690
Biological simulation with cognitive processes. more>>
Noble Ape Simulation 0.690 offers you a biological simulation with cognitive processes. The Noble Ape Simulation creates a random island environment and simulates the ape inhabitants of the islands cognitive processes.
The aim of the simulation is to create a detailed biological environment and a cognitive simulation. The Simulation is open source and features the Ocelot landscape rendering engine.
Enhancements:
- A number of low-level bug fixes relating to the genetics and the long-term stability.
- This version also features the XML phenotype output used for the EvoGrid demonstration.
Charged Particle Simulation
Program that shows how electrically charged particles will move more>>
Zamby and the Mystical Crystals is a unique puzzle game set in a vast, enchanted fantasy land! Help Zamby in his quest to gather the mystical light crystals! Zamby is filled with hours upon hours of captivating brain training puzzles. A non-violent game that the whole family can enjoy!
Requirements: Intel or PowerPC Mac, 1Ghz, 128 MB RAM
<<lessMars Simulation Project 2.86
Simulation of future human settlement of Mars more>> Simulation of future human settlement of Mars
The Mars Simulation Project is a free software Java project to create a simulation of future human settlement of Mars.
The simulation is a multi-agent artificial society set in a detailed virtual world.
Mars Simulation lets the user to modify the simulation options thanks to the Project XML configuration files.
System requirements:
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Enhancements
- This is a maintenance release adding DTDs for XML config files and switching XML parsing over to JDom.
Generate Monte Carlo Simulation 1.0
Generate Monte Carlo Simulation - AppleScript for OmniGraffle more>>

Valves Air Flow & Ports Dyno Simulation 1.3
Valves Air Flow & Ports Dyno Simulation provides you with an extremely speedy automotive Valve, Air Flow and Porting Dyno Simulator. more>>
Valves Air Flow & Ports Dyno Simulation 1.3 provides you with an extremely speedy automotive Valve, Air Flow and Porting Dyno Simulator. This application is a powerful assistant to have before and during engine tuning and modification.
It gives instant confirmation of accurate results. It also has a professional and simple user interface so that anyone can set it up in a few minutes. It comes with sample database examples to get you started.
Requirements:
- Mac OS X 10.4 or later.
Evolution 0.2.3
Evolution is an application that simulates virtual animals and their offspring. more>>
Enhancements:
- function to delete all animals
- new appearance
- function to reset the round counter
- possibility to stop the simulation at a any desired population size
- some simulation variables are available to the user
simjava 1.2
A free and process based discrete event simulation package for Java more>> A free and process based discrete event simulation package for Java
simjava is a process based discrete event simulation package for Java, similar to Jades Sim++, with animation facilities.
A simjava simulation is a collection of entities each running in its own thread. These entities are connected together by ports and can communicate with each other by sending and receiving event objects.
A central system class will control all the threads, advance the simulation time, and deliver the events. The progress of the simulation is recorded through trace messages produced by the entities and saved in a file.
System requirements:
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Enhancements
- Simulation occurs in lockstep with animation (no more reading trace and pause before animation starts)
- java beans for displaying + storing simulation results.
- JAR bundling of the simjava packages.
- More examples.
- A 2D Graph bean. (new since the alpha release)
- Improved simulation speed and support for native threads.

tiicoon 0.5.0
tiicoon is a very interesting and easy-to-play game which offers a free multiplayer city simulation. more>>
FieldLines 1.1.1
FieldLines - Simulation of the electric field lines between charged particles more>>
FieldLines is an OpenGL screensaver.
Enhancements:
- Fixed a bug in the way that FieldLines initialized OpenGL that caused the screen saver to not work under certain video hardware configurations.
- Fixed a typo in the English localization.
- Fixed a problem where the frames were drawn out of sync, which caused video tearing.
- Removed the "check for update" button.
- FieldLines now runs on Intel-based Macs.

Stronghold 1.2
A unique castle simulation game combining the best aspects from a builder and a real-time strategy game. more>>
A unique castle simulation game combining the best aspects from a builder and a real-time strategy game ? it?s sure to engage sim, strategy, and action gamers alike. Set in medieval times, Stronghold challenges you to establish your settlement by designing and building your castle, managing your people and protecting your fiefdom by engaging in intense siege warfare.
Game Feature: Stronghold: Building Castles with the Strength of Mac OS X
SWAN 1.0
SWAN - Displays images, plots, etc. of both observational data as well as model simulation data more>> SWAN - Displays images, plots, etc. of both observational data as well as model simulation data
The NASA Space Weather Laboratory SWAN (Space Weather Awareness at NASA) Widget displays images, plots, etc. of both observational data as well as model simulation data.
Model Simulation Data is derived from real time simulations at the Community Coordinated Modeling Center at NASA Goddard Space Flight Center. The models are provided by the research community.
The NASA Space Weather Laboratory SWAN Widget can display real time plots for the following regions by selecting the corresponding button:
- Solar
- Heliosphere
- Magnetosphere
- Ionosphere
There is also a "Media" button that will display content for a selected event or other relevant Space Weather news.
The loop button allows the user to switch between cycling through the available plots or displaying a single plot. A green indicator light activates whenever the cycle/loop mode is on.
The Backside of the Widget allows the user to select the loop interval - either 5,10, or 30 seconds.
System requirements:
- Internet Connection
MacEtegami 2.02
MacEtegami - a watercolor painting simulation program more>>
"etegami" is mean a post card painted a picture and drawn message in Japanese. It is usually painted a picture with watercolors.
Sioux 3.5
Simulation of coded aperture imaging systems used in gamma astronomy. This is the subject of my preparatory class personal work (TIPE in french) more>> Simulation of coded aperture imaging systems used in gamma astronomy. This is the subject of my preparatory class personal work (TIPE in french). For more information about coded aperture imaging systems, see this site.
Mac OS X 10.1 or later