Source environment.nas
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##
## environment.nas
##
## Nasal code for implementing environment-specific functionality.
##
# Handler. Increase visibility by one step
#
var increaseVisibility = func {
adjustVisibility(1.1);
}
##
# Handler. Decrease visibility by one step
#
var decreaseVisibility = func {
adjustVisibility(0.9);
}
var adjustVisibility = func( factor ) {
var val = 0;
var aux_val = 0;
# better to use a non gui/dialog property here, but there doesn't
# seem to be one for local-weather.
var localWeatherEnabled = getprop("sim/gui/dialogs/metar/mode/local-weather");
var max_aux_vis = 12.429216196;
var min_aux_vis = 9.90348;
if (localWeatherEnabled) {
if (factor == 1.1)
factor = 1.001;
else
factor = 0.999;
aux_val = auxvisibilityProp.getValue() * factor;
if( aux_val <= min_aux_vis)
auxvisibilityProp.setDoubleValue(min_aux_vis);
elsif(aux_val >= max_aux_vis)
auxvisibilityProp.setDoubleValue(max_aux_vis);
else
auxvisibilityProp.setDoubleValue(aux_val);
gui.popupTip(sprintf("Max Visibility: %.0f m", getprop("/local-weather/config/max-vis-range-m")));
} else {
val = visibilityProp.getValue() * factor;
if( val < 1.0 ) val = getprop("/environment/visibility-m");
if( val > 30 ) {
visibilityProp.setDoubleValue(val);
visibilityOverrideProp.setBoolValue(1);
}
gui.popupTip(sprintf("Visibility: %.0f m", val));
}
}
##
# Handler. Reset visibility to default.
#
var resetVisibility = func {
visibilityProp.setDoubleValue(0);
visibilityOverrideProp.setBoolValue(0);
}
var visibilityProp = props.globals.initNode("/environment/config/presets/visibility-m", 0, "DOUBLE" );
var visibilityOverrideProp = props.globals.initNode("/environment/config/presets/visibility-m-override", 0, "BOOL" );
var auxvisibilityProp = props.globals.initNode("/local-weather/config/aux-max-vis-range-m", 0, "DOUBLE" );