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Howto:Make an aircraft: Difference between revisions
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There are many things required to develop an [[aircraft]] for [[FlightGear]]. We encourage new developers to start their 'career' by enhancing existing aircrafts. It is much easier to do and gives you a giant advantage by the time you create an aircraft completely by yourself. | There are many things required to develop an [[aircraft]] for [[FlightGear]]. We encourage new developers to start their 'career' by enhancing existing aircrafts. It is much easier to do and gives you a giant advantage by the time you create an aircraft completely by yourself. | ||
The in this article treated codes can be found in most planes. So for examples of the usage, you might take a look at some random planes. | |||
==Before you start== | ==Before you start== | ||
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==Directories and files== | ==Directories and files== | ||
The data created during development results in many files, which are stored in several directories per aircraft. Each aircraft has its own directory in the <tt>$FG_ROOT/Aircraft/</tt> directory. The first thing to do when you start working on a new aircraft is to make a directory for it. A short version of the aircraft name (eg. harrier), or its serial number (eg. 747-400) is prefered. | The data created during development results in many files, which are stored in several directories per aircraft. Each aircraft has its own directory in the <tt>$FG_ROOT/Aircraft/</tt> directory. The first thing to do when you start working on a new aircraft is to make a directory for it. A short version of the aircraft name (eg. harrier), or its serial number (eg. 747-400) is prefered. More directories might be needed further on, but we will create them when we need them. For now we create one directory, namely: | ||
* <tt>Models/</tt> all files related to the appearence of the model are saved in this directory. | * <tt>Models/</tt> all files related to the appearence of the model are saved in this directory. | ||
All paths are relative to [[$FG_ROOT]], with the exception of some that are explicit noted. | |||
===The .xml file (FDM)=== | |||
This file contains the entire (or partial) [[Flight Dynamics Model]] of the aircraft. We have three different systems; they all have their up- and downsides. | |||
* [[YASim]], needed for: helicopters, towing over a [[Howto: Multiplayer|multiplay network]] | |||
* [[JSBSim]], needed for: [[Howto: Implent pushback|pushback]] | |||
* [[UIUC]] (rarely used) | |||
When you have acces to real windtunnel data, JSBSim might be a better choice. | |||
===The -set.xml file=== | ===The -set.xml file=== | ||
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====<description></description>==== | ====<description></description>==== | ||
The text that have to be showed in the Aircraft selection dialog of FlightGear. | The text that have to be showed in the Aircraft selection dialog of FlightGear. | ||
====<aircraft-version>==== | |||
Commonly shows the latest update date. | |||
====<status></status>==== | ====<status></status>==== | ||
The status of the development of your plane. | The status of the development of your plane. | ||
====<author></author>==== | ====<author></author>==== | ||
Place your name(s) here. If multiple people worked on the same aircraft, you can place the specific development area for each person between ( ). | Place your name(s) here. If multiple people worked on the same aircraft, you can place the specific development area for each person between ( ). | ||
====<flight-model></flight-model>==== | ====<flight-model></flight-model>==== | ||
What FDM system is the aircraft using. Set to yasim for [[YASim]] and to jsb for [[JSBSim]]. | What FDM system is the aircraft using. Set to 'yasim' for [[YASim]] and to 'jsb' for [[JSBSim]]. | ||
====<aero></aero>==== | ====<aero></aero>==== | ||
The filename of the FDM file, without .xml. | The filename of the FDM file, without .xml. You have created this file earlier on at: [[#The .xml file (FDM)]] | ||
====<splash-texture></splash-texture>==== | ====<splash-texture></splash-texture>==== | ||
Place the location of an image you would like to show during loading of the aircraft. | Place the location of an image you would like to show during loading of the aircraft. | ||
====<model><path></path></model>==== | ====<model><path></path></model>==== | ||
Where to find the model. Could be an .ac file or .xml if you want to have extras like animations etc. | Where to find the model. Could be an .ac file or .xml if you want to have extras like animations etc. | ||
====<sound><path></path></sound>==== | ====<sound><path></path></sound>==== | ||
The path to your aircrafts sound file, do not include if you don't have one. | The path to your aircrafts sound file, do not include if you don't have one. | ||
====<panel><path></path></panel>==== | ====<panel><path></path></panel>==== | ||
Where to find the (2D) panel. We prefer 3D cockpits, which are linked in the model .xml file. | Where to find the (2D) panel. We prefer 3D cockpits, which are linked in the model .xml file. | ||
====<autopilot><path></path></autopilot>==== | ====<autopilot><path></path></autopilot>==== | ||
Where to find the [[autopilot]] system. | Where to find the [[autopilot]] system. | ||
==Extra codes== | ==Extra codes== | ||