Free urban software for linux

absence is a calendar tool written in Perl for keeping track of people (but could be adapted for any other object) on a daily basis.

It is meant to replace that ubiquitous whiteboard in the office of the boss.

You know the one, where someone has used a permanent magic marker to mark a matrix, and vacations/training/etc. are marked with non-permanent markers as blocks.

absence is a CGI system, and has a resolution of one day.

It is not intended to be used for keeping appointments or any other activity that requires a finer resolution.

It generates an image for each month to be displayed using the GD library, and it can be configured to produce PNG or GIF (or even JPEG).

Unreal Tournament 2004 BONUS MEGAPACK contains many missions for Unreal Turnament 2004.

This pack is our way of saying "Thanks" for purchasing UT2004. We hope you enjoy it!

This bonus pack includes everything you need to update UT2004 to the most current version, including the latest patch, and the content from the first (Editors Choice Edition) bonus pack for UT2004. You can install this bonus pack on any version of UT2004.

The MegaPack includes the following maps:

Assault:
AS-BP2-Acatana
Intense space fighting and on-foot combat combine in this recreation of the historic Skaarj invasion of the Acatana asteroid belt.

AS-BP2-Jumpship
Be part of the elite team that infiltrated and hijacked the first warp capable Jumpship.

AS-BP2-Outback
City slickers just took over the outback’s top brewery – get over there pronto and stop the production of their tasteless Zero Beer before it takes over Oz!

AS-BP2-SubRosa
Fight your way into a Liandri research facility and steal the original plans for the Redeemer.

AS-BP2-Thrust
A recreation of the infamous destruction of the Saturn IX rocket where a team of rebel fighters launched it unguided and half fueled into hostile waters.

CTF:
CTF-BP2-Concentrate
Tall spires tower over this Capture the Flag battle set on a derelict outpost deep in the Elorean Seas.

CTF-BP2-Pistola
This twin complex of concrete and metal combines the beauty of nature with the harsh lines of industrial architecture to create a fierce battle arena.

Deathmatch:
DM-BP2-Calandras
The courtyards of Calandras were once beautiful and welcoming. While the Temple’s interiors have been preserved, a new less-inviting use has been found for the exteriors.

DM-BP2-GoopGod
For centuries the Nali monks managed to keep this sacred burial ground hidden until Liandri satellites discovered the location during a routine satellite sweep. The area was mined, and what remained was converted into a tournament arena, corpses and all.

The content from the first bonuspack, also included, is:

Onslaught:
ONS-Adara
ONS-IslandHop
ONS-Tricky
ONS-Urban

Three new vehicles:

SPMA (Self Propelled Mobile Artillery)
The SPMA is a two person vehicle, with the driver controlling a long range artillery piece. Alt-fire deploys the spotter camera. Enemies will want to shoot down the spotter camera as soon as they see it, to keep the SPMA from raining destruction from afar. An AVRiL at the spotter camera will automatically re-direct toward the SPMA if it ever becomes visible to the AVRiL.

Paladin
The Paladin is a defense focused vehicle, with a powerful energy projectile cannon and a defensive shield alt-fire. Firing the cannon while the shield is deployed will heavily damage nearby players.

Cicada
The two-man Cicada ground attack bomber is a powerful weapon against ground targets, but is easy prey for Raptors. The pilot can fire missiles, or use the alt-fire to specify a target. While holding alt-fire, multiple missiles are loaded up, and released when alt-fire is released. These missiles will all track toward the specified target location, so the alt-fire can be used to avoid enemy fire while loading up missiles. The second seat in the Cicada is an energy beam turret located on the belly of the Cicada. Its alt-fire is chaff that can be used to confuse incoming AVRiLs.

Six new characters:

Mekkor (Skaarj)
Mekkor is from the Black Fist Clan, sworn enemies of the Iron Skull Clan. Severely injured in battle, he is testing his new cybernetic armor in the Tournament.

Skrilax (Skaarj)
Skrilax is from the Black Fist Clan, sworn enemies of the Iron Skull Clan. Alongside his brother Mekkor, he was severely injured while fighting the Iron Skull Clan."

Barktooth (Iron Guard)
Barktooth would rather rip an opponent to shreds with his bare hands than fight from afar. He also finds close range Flak shots very satisfying."

Karag (Iron Guard)
Before joining the Iron Guard, Karag honed his weapon handling skills during a long stint as a Marshall for the Terran Colonial Authority. His style and panache already have the the Tournament audience abuzz."

Kragoth (Necris)
After an absence of several years, the Necris are preparing a return to the Tournament. Known as the Star Slayer, Kragoth is a dread Necris Phayder assassin. He is rumored to have single handedly killed the entire crew of an ICV Star Cruiser."

Thannis (Necris)
After an absence of several years, the Necris are preparing a return to the Tournament. Thannis is participating to scout the competition."

The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. Source code for the entire project is available and licensed under the GNU General Public License.

The goal of the FlightGear project is to create a sophisticated flight simulator framework for use in research or academic environments, for the development and pursuit of other interesting flight simulation ideas, and as an end-user application. We are developing a sophisticated, open simulation framework that can be expanded and improved upon by anyone interested in contributing.

There are many exciting possibilities for an open, free flight sim. We hope that this project will be interesting and useful to many people in many areas.

FlightGear is a free flight simulator project. It is being developed through the gracious contributions of source code and spare time by many talented people from around the globe. Among the many goals of this project are the quest to minimize short cuts and "do things right", the quest to learn and advance knowledge, and the quest to have better toys to play with.

The idea for Flight Gear was born out of a dissatisfaction with current commercial PC flight simulators. A big problem with these simulators is their proprietariness and lack of extensibility. There are so many people across the world with great ideas for enhancing the currently available simulators who have the ability to write code, and who have a desire to learn and contribute. Many people involved in education and research could use a spiffy flight simulator frame work on which to build their own projects; however, commercial simulators do not lend themselves to modification and enhancement. The Flight Gear project is striving to fill these gaps.

There are a wide range of people interested and participating in this project. This is truly a global effort with contributors from just about every continent. Interests range from building a realistic home simulator out old airplane parts, to university research and instructional use, to simply having a viable alternative to commercial PC simulators.

Flight Dynamics Models

With FlightGear it is possible to choose between three primary Flight Dynamics Models. It is possible to add new dynamics models or even interface to external "proprietary" flight dynamics models:

1. JSBSim: JSBSim is a generic, 6DoF flight dynamics model for simulating the motion of flight vehicles. It is written in C++. JSBSim can be run in a standalone mode for batch runs, or it can be the driver for a larger simulation program that includes a visuals subsystem (such as FlightGear.) In both cases, aircraft are modeled in an XML configuration file, where the mass properties, aerodynamic and flight control properties are all defined.

2. YASim: This FDM is an integrated part of FlightGear and uses a different approach than JSBSim by simulating the effect of the airflow on the different parts of an aircraft. The advantage of this approach is that it is possible to perform the simulation based on geometry and mass information combined with more commonly available performance numbers for an aircraft. This allows for quickly constructing a plausibly behaving aircraft that matches published performance numbers without requiring all the traditional aerodynamic test data.

3. UIUC: This FDM is based on LaRCsim originally written by the NASA. UIUC extends the code by allowing aircraft configuration files instead and by adding code for simulation of aircraft under icing conditions.

UIUC (like JSBSim) uses lookup tables to retrieve the component aerodynamic force and moment coefficients for an aircraft... and then uses these coefficients to calculate the sum of the forces and moments acting on the aircraft.

Extensive and Accurate World Scenery Data Base

Over 20,000 real world airports included in the full scenery set.
Correct runway markings and placement, correct runway and approach lighting.
Taxiways available for many larger airports (even including the green center line lights when appropriate.)
Sloping runways (runways change elevation like they usually do in real life.)
Directional airport lighting that smoothly changes intensity as your relative view direction changes.
World scenery fits on 3 DVDs. (Im not sure thats a feature or a problem!) But it means we have pretty detailed coverage of the entire world.
Accurate terrain worldwide, based on the most recently released SRTM terrain data.) 3 arc second resolution (about 90m post spacing) for North and South America, Europe, Asia, Africa, and Australia.
Scenery includes all vmap0 lakes, rivers, roads, railroads, cities, towns, land cover, etc.
Nice scenery night lighting with ground lighting concentrated in urban areas (based on real maps) and headlights visible on major highways. This allows for realistic night VFR flying with the ability to spot towns and cities and follow roads.
Scenery tiles are paged (loaded/unloaded) in a separate thread to minimize the frame rate hit when you need to load new areas.

Accurate and Detailed Sky Model

FlightGear implements extremely accurate time of day modeling with correctly placed sun, moon, stars, and planets for the specified time and date. FlightGear can track the current computer clock time in order to correctly place the sun, moon, stars, etc. in their current and proper place relative to the earth. If its dawn in Sydney right now, its dawn in the sim right now when you locate yourself in virtual Sidney. The sun, moon, stars, and planets all follow their correct courses through the sky. This modeling also correctly takes into account seasonal effects so you have 24 hour days north of the arctic circle in the summer, etc. We also illuminate the correctly placed moon with the correctly placed sun to get the correct phase of the moon for the current time/date, just like in real life.

Flexible and Open Aircraft Modeling System

FlightGear has the ability to model a wide variety of aircraft. Currently you can fly the 1903 Wright Flyer, strange flapping wing "ornithopters", a 747 and A320, various military jets, and several light singles. FlightGear has the ability to model those aircraft and just about everything in between.

FlightGear has extremely smooth and fluid instrument animation that updates at the same rate as your out-the-window view updates (i.e. as fast as your computer can crank, and not artificially limited and chunky like in some sims.)

FlightGear has the infrastructure to allow aircraft designers to build fully animated, fully operational, fully interactive 3d cockpits (which even update and display correctly from external chase plane views.)

FlightGear realistically models real world instrument behavior. Instruments that lag in real life, lag correctly in FlightGear, gyro drift is modeled correctly, the magnetic compass is subject to aircraft body forces -- all those things that make real world flying a challenge.

FlightGear also accurately models many instrument and system failures. If the vacuum system fails, the HSI gyros spin down slowly with a corresponding degradation in response as well as a slowly increasing bias/error.

Moderate Hardware Requirements

The intention of FlightGear is to look nice, but not at the expense of other aspects of a realistic simulator. Our focus is not on competing in the "game" market and not on the ultra-flashy graphic tricks.

The result is a simulator with moderate hardware requirements to run at smooth frame rates. You can be reasonably happy on a $500-1000 (USD) machine (possibly even less if you are careful) and dont necessarily need $3000 (USD) worth of new hardware like you do with the many of the newest games.

That said, the more hardware you throw at FlightGear, the better it looks and runs, so dont feel like you have to chuck your expensive new hardware if you just purchased it. :-)

Internal Properties EXPOSED!

FlightGear allows users and aircraft designers access to a very large number of internal state variables via numerous internal and external access mechanisms. These state variables are organized into a convenient hierarchal "property" tree.

Using the properties tree it is possible to monitor just about any internal state variable in FlightGear. Its possible to remotely control FlightGear from an external script. You can create model animations, sound effects, instrument animations and network protocols for about any situation imaginable just by editing a small number of human readable configuration files. This is a powerful system that makes FlightGear immensely flexible, configurable, and adaptable.

Networking options

A number of networking options allow FlightGear to communicate with other instances of FlightGear, GPS receivers, external flight dynamics modules, external autopilot or control modules, as well as other software such as the Open Glass Cockpit project and the Atlas mapping utility.

A generic input/output option allows for a user defined output protocol to a file, serial port or network client.

A multi player protocol is available for using FlightGear on a local network in a multi aircraft environment, for example to practice formation flight or for tower simulation purposes.

The powerful network options make it possible to synchronize several instances of FlightGear allowing for a multi-display, or even a cave environment. If all instances are running at the same frame rate consistently, it is possible to get extremely good and tight synchronization between displays.

Flight Gear and its source code have intentionally been kept open, available, and free. In doing so, we are able to take advantage of the efforts of tremendously talented people from around the world. Contrast this with the traditional approach of commercial software vendors, who are limited by the collective ability of the people they can hire and pay. Our approach brings its own unique challenges and difficulties, but we are confident (and other similarly structured projects have demonstrated) that in the long run we can outclass the commercial "competition."

Contributing to Flight Gear can be educational and a lot of fun. A long time developer, Curtis Olson, had this to say about working on Flight Gear:

Personally, Flight Gear has been a great learning experience for me. I have been exposed to many new ideas and have learned a tremendous amount of "good stuff" in the process of discussing and implementing various Flight Gear subsystems. If for no other reason, this alone makes it all worth while.