Howto:Create a new Nasal module
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Status: Planning
Last updated: 5/25/2012
Authors: Hooray, rico001
References:
This tutorial will document all the steps involved in creating a new Nasal module, Nasal is FlightGear's scripting language.
- create a new plain text file under $FG_ROOT/Nasal/MODULE.nas
- replace MODULE with the name for your new module (for example, use "test")
- paste the following code into this file using a text editor (such as notepad on Windows)
# test.nas (save in $FG_ROOT/Nasal)
var mycode = func {
print("My test module got loaded !");
}
_setlistener("/sim/signals/nasal-dir-initialized", mycode);
This piece of code defines a new function named "mycode" that just prints a message to the console.
Note: This code does not print or output anything to the window of the Flightgear simulator screen, only the console window.
The _selistener call at the end of the snippet waits for the Nasal system to be initialized before the "mycode" function gets called.