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Howto:Extend Nasal: Difference between revisions
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Most of the code in the Nasal subsystem itself (FGNasalSys) also still uses the legacy C APIs - this is just to explain the two approaches, to avoid unnecessary confusion. | Most of the code in the Nasal subsystem itself (FGNasalSys) also still uses the legacy C APIs - this is just to explain the two approaches, to avoid unnecessary confusion. | ||
Overall, it's a good idea to favor cppbind over the low-level approach documented here, it isn't only much more elegant, but also saves you tons of typing, too | Overall, it's a good idea to favor cppbind over the low-level approach documented here, it isn't only much more elegant, but also saves you tons of typing and time, too | ||
The new cppbind framework makes heavy use of modern C++, so that C++ data structures and classes/methods can now be easily exposed to Nasal space and vice versa. | The new cppbind framework makes heavy use of modern C++, so that C++ data structures and classes/methods (including templates) can now be easily exposed to Nasal space and vice versa. | ||
Implementation examples are to be found in $FG_SRC/Scripting. | Implementation examples are to be found in $FG_SRC/Scripting. | ||
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Some of the more straightforward things to play with would be exposing useful SG/FG classes to Nasal space, such as the SGSubsystem interface to register scripted SGSubsystems, or the autopilot system. | Some of the more straightforward things to play with would be exposing useful SG/FG classes to Nasal space, such as the SGSubsystem interface to register scripted SGSubsystems, or the autopilot system. | ||
For more technical Nasal questions (C API, internals etc), you'll probably want to refer to the forum, in particular: Philosopher, TheTom, Zakalawe or Hooray - TheTom and Zakalawe can also provide help on using cppbind, having both used it extensively | For more technical Nasal questions (C API, internals etc), you'll probably want to refer to the forum, in particular: Philosopher, TheTom, Zakalawe or Hooray - TheTom and Zakalawe can also provide help on using cppbind, having both used it extensively while developing/extending the Canvas system. | ||
== Pre-requisites == | == Pre-requisites == | ||