* Justin Smithies -- Monday 06 March 2006 13:15:
> Is it possible to have a nasal script running and waiting for an event to
> happen , say watching a switch then if the condition is met do the required ?
setlistener("/some/switch", func {
if (cmdarg().getBoolValue()) {
print("turned on");
} else {
print("turned off");
}
});
You can also define the function elsewhere and just call it like that:
on_switch = func {
...
}
setlistener("/some/switch", on_switch);
cmdarg() returns the listened-to property as props.Node object,
so you can use it with all its methods (see $FG_ROOT/Nasal/props.nas),
for example:
print(cmdarg().getPath(), " has been changed to ", cmdarg().getValue())
m.
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